The Importance of Comparing Estimates for Roof Renovation in Sagamihara City and Key Points to Consider!
/* ===== Kakeru Koumuten Co., Ltd. | Sagamihara City Roof Renovation Estimate Article (Paste Only – JIN Interference Countermeasures Applied) ===== */ #toc_container{display:none !important;} .kk-sgm{–kb:#0b4f9e;–kb2:#1a73c9;–kbl:#e8f1fb;–kbl2:#f4f8fd;–kr:#0f9aa8;–krl:#e4f6f8;–ko:#f07a1a;–kol:#fff3e8;–kt:#1f2a37;–kg:#5b6b7c;–kline:#d9e3ef;–kred:#d63b2f; color:var(–kt);font-size:16px;line-height:1.85;max-width:100%;overflow-x:hidden;word-break:break-word;} .kk-sgm *{box-sizing:border-box;} .kk-sgm img{max-width:100%;height:auto;} .kk-sgm p{margin:0 0 1em;} .kk-sgm a{color:var(–kb2);text-decoration:underline;} /* — Headings (Override theme’s h2/h3 styles) — */ .kk-sgm h2.kk-h2,.kk-sgm h3.kk-h3,.kk-sgm h4.kk-h4{background:none !important;color:var(–kt) !important;border:0 !important;padding:0 !important;margin:0 !important;box-shadow:none !important;text-shadow:none !important;border-radius:0 !important;} .kk-sgm h2.kk-h2::before,.kk-sgm h2.kk-h2::after,.kk-sgm h3.kk-h3::before,.kk-sgm h3.kk-h3::after,.kk-sgm h4.kk-h4::before,.kk-sgm h4.kk-h4::after{content:none !important;display:none !important;} .kk-sgm h2.kk-h2{font-size:1.5em !important;font-weight:800 !important;line-height:1.4 !important;margin:2.6em 0 1.1em !important;padding:.55em .8em .55em 1em !important;border-left:8px solid var(–kb) !important;background:linear-gradient(90deg,var(–kbl),#fff) !important;border-radius:0 10px 10px 0 !important;} .kk-sgm h2.kk-h2 span.kk-num{display:inline-block;background:var(–kb);color:#fff;font-size:.7em;padding:.1em .6em;border-radius:20px;margin-right:.5em;vertical-align:middle;} .kk-sgm h3.kk-h3{font-size:1.22em !important;font-weight:800 !important;line-height:1.45 !important;margin:2em 0 .9em !important;padding:0 0 .4em !important;border-bottom:3px solid var(–kb) !important;} .kk-sgm h3.kk-h3 .kk-badge{display:inline-block;background:var(–kb);color:#fff;font-size:.78em;font-weight:800;padding:.15em .7em;border-radius:6px;margin-right:.5em;vertical-align:middle;} .kk-sgm h4.kk-h4{font-size:1.06em !important;font-weight:800 !important;margin:1.5em 0 .6em !important;padding:.35em .7em !important;background:var(–kbl2) !important;border-left:4px solid var(–kr) !important;border-radius:4px !important;} /* — Table of Contents — */ .kk-sgm details.kk-toc{border:2px solid var(–kb);border-radius:14px;background:#fff;margin:0 0 1.8em;overflow:hidden;} .kk-sgm details.kk-toc summary{cursor:pointer;list-style:none;padding:.8em 2.6em .8em 1.1em;font-weight:800;color:#fff;background:var(–kb);position:relative;font-size:1.05em;} .kk-sgm details.kk-toc summary::-webkit-details-marker{display:none;} .kk-sgm details.kk-toc summary::after{content:”” !important;position:absolute;right:1.1em;top:50%;width:.55em;height:.55em;border-right:3px solid #fff;border-bottom:3px solid #fff;transform:translateY(-70%) rotate(45deg);} .kk-sgm details.kk-toc[open] summary::after{transform:translateY(-30%) rotate(-135deg);} .kk-sgm ol.kk-toclist{list-style:none !important;counter-reset:kktoc;margin:0 !important;padding:.6em 1em .8em !important;} .kk-sgm ol.kk-toclist li{position:relative;counter-increment:kktoc;padding:.4em 0 .4em 2.2em !important;margin:0 !important;border-bottom:1px dashed var(–kline);line-height:1.5;} .kk-sgm ol.kk-toclist li:last-child{border-bottom:0;} .kk-sgm ol.kk-toclist li::before{content:counter(kktoc) !important;position:absolute;left:.2em;top:.45em;width:1.5em;height:1.5em;border-radius:50%;background:var(–kbl);color:var(–kb);font-weight:800;text-align:center;line-height:1.5em;font-size:.85em;} .kk-sgm ol.kk-toclist li a{color:var(–kt);text-decoration:none;font-weight:700;} .kk-sgm ol.kk-toclist li a:hover{color:var(–kb2);text-decoration:underline;} .kk-sgm .kk-imgc img,.kk-sgm .kk-float img,.kk-sgm .kk-imgrow img{image-rendering:auto;} /* — Common Parts — */ .kk-sgm .kk-lead{background:linear-gradient(135deg,#0b4f9e 0%,#1a73c9 60%,#0f9aa8 100%);color:#fff;border-radius:16px;padding:1.6em 1.4em;margin:0 0 1.6em;text-align:center;} .kk-sgm .kk-lead .kk-lead-kicker{display:inline-block;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.5);border-radius:20px;padding:.15em 1em;font-size:.85em;font-weight:700;margin-bottom:.8em;} .kk-sgm .kk-lead .kk-lead-ttl{font-size:1.35em;font-weight:800;line-height:1.45;margin:0 0 .6em;} .kk-sgm .kk-lead .kk-lead-ttl em{font-style:normal;color:#ffe08a;} .kk-sgm .kk-lead p{margin:0;font-size:.95em;} .kk-sgm .kk-lead img{margin:.6em auto 0;display:block;} .kk-sgm .kk-answer{border:2px solid var(–kb);border-radius:14px;background:#fff;margin:0 0 1.6em;overflow:hidden;} .kk-sgm .kk-answer .kk-answer-head{background:var(–kb);color:#fff;font-weight:800;padding:.6em 1em;font-size:1.02em;} .kk-sgm .kk-answer .kk-answer-body{padding:1em 1.1em .4em;} .kk-sgm ul.kk-list{list-style:none !important;margin:0 0 1em !important;padding:0 !important;} .kk-sgm ul.kk-list li{position:relative;padding:0 0 0 1.5em !important;margin:0 0 .5em !important;line-height:1.7;} .kk-sgm ul.kk-list li::before{content:”” !important;position:absolute;left:.15em;top:.62em;width:.6em;height:.6em;border-radius:50%;background:var(–kb2);} .kk-sgm ul.kk-check li::before{content:”” !important;width:.5em;height:.9em;top:.3em;left:.35em;border-right:3px solid var(–kr);border-bottom:3px solid var(–kr);border-radius:0;background:none;transform:rotate(45deg);} .kk-sgm ol.kk-steps{list-style:none !important;counter-reset:kkstep;margin:0 0 1em !important;padding:0 !important;} .kk-sgm ol.kk-steps li{position:relative;counter-increment:kkstep;padding:.55em .8em .55em 3em !important;margin:0 0 .5em !important;background:var(–kbl2);border-radius:10px;line-height:1.65;} .kk-sgm ol.kk-steps li::before{content:counter(kkstep) !important;position:absolute;left:.7em;top:.55em;width:1.7em;height:1.7em;border-radius:50%;background:var(–kb);color:#fff;font-weight:800;text-align:center;line-height:1.7em;font-size:.95em;} .kk-sgm .kk-mk{background:linear-gradient(transparent 55%,#ffe9a8 55%);font-weight:700;} .kk-sgm .kk-mk2{background:linear-gradient(transparent 55%,#cfe9ffleft;line-height:1.6;} .kk-sgm details.kk-qa summary::after{content:”” !important;position:absolute;right:1.1em;top:50%;width:.55em;height:.55em;border-right:3px solid var(–kb);border-bottom:3px solid var(–kb);transform:translateY(-70%) rotate(45deg);transition:transform .2s;} .kk-sgm details.kk-qa[[KAT1]] summary::after{transform:translateY(-30%) rotate(-135deg);} .kk-sgm details.kk-qa .kk-qa-body{padding:1em 1.1em .2em;} .kk-sgm .kk-btn{display:inline-block;padding:.6em 1.2em;font-size:1em;color:#fff;background:var(–kb);border-radius:5px;text-decoration:none;transition:background .3s;} .kk-sgm .kk-btn:hover{background:var(–kbl);} .kk-sgm .kk-price{font-weight:800;color:var(–kb);} .kk-sgm .kk-title{font-size:1.5em;font-weight:800;color:var(–kb);} .kk-sgm .kk-subtitle{font-size:1.2em;color:var(–kbl);} .kk-sgm .kk-text{font-size:1em;color:#333;} .kk-sgm .kk-highlight{color:var(–kb);font-weight:800;} .kk-sgm .kk-list{list-style:none;padding:0;margin:0;} .kk-sgm .kk-list li{padding:0.5em 0;} .kk-sgm .kk-list li:before{content:”• “;color:var(–kb);padding-right:0.5em;} .kk-sgm .kk-image{max-width:100%;height:auto;} .kk-sgm .kk-section{margin:2em 0;} .kk-sgm .kk-footer{background:#f8f8f8;padding:2em 0;text-align:center;} .kk-sgm .kk-footer p{margin:0;color:#666;} .kk-sgm .kk-footer a{color:var(–kb);text-decoration:none;} .kk-sgm .kk-footer a:hover{text-decoration:underline;} .kk-sgm .kk-contact{margin:2em 0;} .kk-sgm .kk-contact h2{font-size:1.5em;color:var(–kb);} .kk-sgm .kk-contact p{font-size:1em;color:#333;} .kk-sgm .kk-contact a{color:var(–kb);font-weight:800;} .kk-sgm .kk-contact a:hover{text-decoration:underline;} .kk-sgm .kk-map{margin:2em 0;} .kk-sgm .kk-map iframe{width:100%;height:400px;border:0;} .kk-sgm .kk-map h3{font-size:1.5em;color:var(–kb);} .kk-sgm .kk-map p{font-size:1em;color:#333;} .kk-sgm .kk-map a{color:var(–kb);font-weight:800;} .kk-sgm .kk-map a:hover{text-decoration:underline;} .kk-sgm .kk-service{margin:2em 0;} .kk-sgm .kk-service h2{font-size:1.5em;color:var(–kb);} .kk-sgm .kk-service p{font-size:1em;color:#333;} .kk-sgm .kk-service a{color:var(–kb);font-weight:800;} .kk-sgm .kk-service a:hover{text-decoration:underline;} .kk-sgm .kk-testimonial{margin:2em 0;} .kk-sgm .kk-testimonial h2{font-size:1.5em;color:var(–kb);} .kk-sgm .kk-testimonial p{font-size:1em;color:#333;} .kk-sgm .kk-testimonial cite{font-size:.9em;color:#666;} .kk-sgm .kk-testimonial cite a{color:var(–kb);font-weight:800;} .kk-sgm .kk-testimonial cite a:hover{text-decoration:underline;} .kk-sgm .kk-cta{margin:2em 0;} .kk-sgm .kk-cta h2{font-size:1.5em;color:var(–kb);} .kk-sgm .kk-cta p{font-size:1em;color:#333;} .kk-sgm .kk-cta a{color:var(–kb);font-weight:800;} .kk-sgm .kk-cta a:hover{text-decoration:underline;} .kk-sgm .kk-accordion{margin:2em 0;} .kk-sgm .kk-accordion h2{font-size:1.5em;color:var(–kb);} .kk-sgm .kk-accordion p{font-size:1em;color:#333;} .kk-sgm .kk-accordion .kk-accordion-item{border:1px solid var(–kline);border-radius:12px;margin:1em 0;} .kk-sgm .kk-accordion .kk-accordion-header{cursor:pointer;padding:.9em 2.6em;font-weight:800;color:var(–kb);background:var(–kbl2);position:relative;line-height:1.5;} .kk-sgm .kk-accordion .kk-accordion-body{padding:1em 1.1em;} .kk-sgm .kk-accordion .kk-accordion-header::after{content:”” !important;position:absolute;right:1.1em;top:50%;width:.55em;height:.55em;border-right:3px solid var(–kb);border-bottom:3px solid var(–kb);transform:translateY(-70%) rotate(45deg);transition:transform .2s;} .kk-sgm .kk-accordion .kk-accordion-item.open .kk-accordion-header::after{transform:translateY(-30%) rotate(-135deg);} .kk-sgm .kk-accordion .kk-accordion-item.open .kk-accordion-body{display:block;} .kk-sgm .kk-accordion .kk-accordion-body{display:none;}
[open]center;line-height:1.6em;font-size:.95em;} .kk-sgm details.kk-qa summary::after{content:”+” !important;position:absolute;right:1em;top:.7em;font-size:1.3em;color:var(–kb);font-weight:800;} .kk-sgm details.kk-qa[open] summary::after{content:”-” !important;} .kk-sgm details.kk-qa .kk-qa-a{padding:.2em 1.1em 1em 3.2em;position:relative;border-top:1px dashed var(–kline);margin-top:.2em;padding-top:.9em;} .kk-sgm details.kk-qa .kk-qa-a::before{content:”A” !important;position:absolute;left:1em;top:.85em;width:1.6em;height:1.6em;border-radius:50%;background:var(–ko);color:#fff;text-align:center;line-height:1.6em;font-size:.95em;font-weight:800;} /* — Subsidies — */ .kk-sgm .kk-sub{border:1px solid var(–kline);border-radius:14px;margin:0 0 1em;overflow:hidden;background:#fff;} .kk-sgm .kk-sub .kk-sub-head{display:flex;align-items:center;gap:.6em;padding:.7em 1em;background:var(–kbl);font-weight:800;color:var(–kb);} .kk-sgm .kk-sub .kk-sub-head .kk-tag{flex:0 0 auto;font-size:.75em;background:var(–kb);color:#fff;padding:.15em .6em;border-radius:5px;} .kk-sgm .kk-sub .kk-sub-head .kk-tag.kk-tag-o{background:var(–ko);} .kk-sgm .kk-sub .kk-sub-head .kk-tag.kk-tag-t{background:var(–kr);} .kk-sgm .kk-sub .kk-sub-body{padding:.9em 1.1em .3em;font-size:.95em;} .kk-sgm .kk-sub .kk-sub-body .kk-big{font-size:1.15em;font-weight:800;color:var(–kb);} .kk-sgm .kk-sub .kk-sub-body p{margin:0 0 .6em;} /* — Regional Characteristics — */ .kk-sgm .kk-area{background:linear-gradient(180deg,var(–krl),#fff);border:1px solid #bfe3e8;border-radius:14px;padding:1em 1.1em;margin:0;} .kk-sgm .kk-area .kk-area-ttl{font-weight:800;color:#0a6f7a;font-size:1.02em;margin:0 0 .4em;} .kk-sgm .kk-area .kk-area-sub{font-size:.82em;color:var(–kg);margin:0 0 .5em;} .kk-sgm .kk-area p{font-size:.95em;margin:0;} /* — Reasons for Choosing Us — */ .kk-sgm .kk-reason{background:#fff;border:1px solid var(–kline);border-top:5px solid var(–kb);border-radius:12px;padding:1em 1em .6em;margin:0;} .kk-sgm .kk-reason .kk-reason-ttl{font-weight:800;color:var(–kb);font-size:1.02em;margin:0 0 .4em;} .kk-sgm .kk-reason p{font-size:.93em;margin:0 0 .4em;} /* — CTA — */ .kk-sgm .kk-cta{background:linear-gradient(135deg,#0b4f9e,#1a73c9);color:#fff;border-radius:16px;padding:1.5em 1.3em;margin:1.5em 0;text-align:center;} .kk-sgm .kk-cta .kk-cta-ttl{font-size:1.25em;font-weight:800;line-height:1.5;margin:0 0 .5em;} .kk-sgm .kk-cta p{font-size:.95em;margin:0 0 1em;} .kk-sgm .kk-cta .kk-btns{display:flex;flex-wrap:wrap;gap:.7em;justify-content:center;} .kk-sgm .kk-btn{display:inline-block;background:var(–ko);color:#fff !important;text-decoration:none !important;font-weight:800;padding:.85em 1.6em;border-radius:40px;box-shadow:0 4px 12px rgba(0,0,0,.18);min-width:220px;font-size:1.02em;} .kk-sgm .kk-btn.kk-btn-w{background:#fff;color:var(–kb) !important;} .kk-sgm .kk-btn.kk-btn-g{background:#06c755;} .kk-sgm .kk-btn:hover{opacity:.9;} .kk-sgm .kk-linkbtn{display:block;text-align:center;background:#fff;border:2px solid var(–kb);color:var(–kb) !important;text-decoration:none !important;font-weight:800;padding:.7em 1em;border-radius:10px;margin:0 0 1.4em;} .kk-sgm .kk-wards{display:flex;flex-wrap:wrap;gap:.5em;margin:0 0 1em;} .kk-sgm .kk-wards span{background:var(–kb);color:#fff;font-weight:700;padding:.25em .9em;border-radius:20px;font-size:.92em;} .kk-sgm .kk-small{font-size:.85em;color:var(–kg);} .kk-sgm .kk-sns{text-align:center;margin:1.5em 0 0;} .kk-sgm .kk-sns .kk-sns-ttl{font-weight:800;font-size:1.1em;color:var(–kb);margin:1em 0 .4em;} @media (max-width:640px){ .kk-sgm .kk-tblwrap.kk-stackwrap{overflow:visible;} .kk-sgm table.kk-stack{min-width:0;display:block;} .kk-sgm table.kk-stack thead{display:none;} .kk-sgm table.kk-stack tbody,.kk-sgm table.kk-stack tr{display:block;width:100%;} .kk-sgm table.kk-stack tr{border:1px solid var(–kline);border-radius:12px;overflow:hidden;margin:0 0 .9em;box-shadow:0 2px 8px rgba(11,79,158,.06);} .kk-sgm table.kk-stack th,.kk-sgm table.kk-stack td{display:bl
the first step to success is to obtain “estimates from three or more companies.”
Hello! We are Kakeru Koumuten Co., Ltd., a company specializing in exterior renovations. We receive many requests for roof renovations and repairs in Sagamihara City. In this page, we will clearly explain the important points to consider when obtaining estimates for roof renovations in Sagamihara City, as well as key comparison points for estimates!
- The most important aspect of roof renovation is getting estimates from three or more companies. However, deciding solely based on “cost” can be risky.
- Roof renovations can be broadly categorized into “roof overlay (cover method),” “roof replacement,” and “roof painting”. Since it involves work on the entire roof, it typically costs hundreds of thousands to over a million yen (please refer to the cost table below for Kakeru Koumuten’s estimates).
- What you should compare is not just the roofing materials themselves but also “accessory materials (roofing, purlins, fasteners, sealing)” and “process”. This will help you determine whether the contractor is reliable.
- In Sagamihara City, there are approximately 33,000 wooden houses built to old seismic standards. There are systems available that can be used in combination with roof renovations, such as seismic diagnosis subsidies (up to 153,000 yen) and the national “Mirai Eco Housing 2026” program.
- Kakeru Koumuten offers free estimates and inspections, and we welcome competitive estimates. From temporary scaffolding to roof work, we handle everything in-house.
Table of Contents
- Average Costs for Roof Renovations in Sagamihara City [Estimates by Type of Work]
- 7 Points to Know When Getting a Roof Work Estimate
- [Sagamihara City] Steps for Getting a Roof Renovation Estimate
- Comparison Points for Each Type of Roof Renovation Estimate
- Regional Characteristics to Consider for Roof Renovations in Sagamihara City
- Summary: How to Avoid Mistakes in Roof Renovation Estimates in Sagamihara City
- Reasons Why Kakeru Koumuten is Chosen for Roof Renovations in Sagamihara City
- Roof Renovation Estimates in Sagamihara City | Frequently Asked Questions
- Service Areas
When obtaining competitive estimates, while it is certainly better if the costs are lower, deciding on a contractor based solely on the estimate cost can also be dangerous. To avoid regrets a few years down the line after a roof renovation, it is essential to identify a reliable contractor that you can trust.
That said, for those who are requesting a roof renovation for the first time,
there may be many questions. Therefore, in this article, we will provide detailed explanations on how to decide on the contents of roof renovation work and comparison points and important items in estimates for roof painting, overlay methods, and replacements!
Average Roofing Renovation Costs in Sagamihara City [Guidelines by Type of Work]
First, knowing “approximately how much it will cost” makes it easier to determine whether a quote is high or low. This is a guideline based on a typical single-family home with a total floor area of around 30 tsubo (roof area of 60-80㎡) in Sagamihara City. This estimate includes temporary scaffolding.
| Type of Work | Kakeru Koumuten Co., Ltd. Cost Estimate (Including temporary scaffolding, tax included) |
Reference (Kakeru Koumuten Pricing & Examples) | Suitable Cases |
|---|---|---|---|
| Roof Painting | Approximately 250,000 to 500,000 yen Estimated lifespan: 8 to 15 years |
Urethane paint: from 2,000 yen/㎡, Silicon paint: from 2,300 yen/㎡ (painting work only).Roof Painting Price List | When the roofing material is sound and suitable for painting, such as slate or metal roofs. Also suitable for those planning to move or rebuild in about 10 years. |
| Roof Overlay (Cover Method) (Re-roofing) |
Approximately 600,000 to 1,100,000 yen Estimated lifespan: 25 to 35 years |
Reference estimate for Super Galtect 64㎡: approximately 1,010,000 yen including scaffolding and high-durability materials. In Kakeru Koumuten’s examples, many cases are around 800,000 to 950,000 yen.Roof Overlay Price List | For slate that cannot be painted or deteriorated slate roofs. Offers a good balance of cost and durability without demolition costs. |
| Roof Replacement | Approximately 900,000 to 1,500,000 yen Estimated lifespan: 30 to 40 years |
Costs vary based on the need for dismantling and disposal of existing roofing materials and the necessity of sheathing. Disposal costs increase for roofs containing asbestos.Roof Replacement Price List | When reducing the weight of tile roofs, when the underlayment (sheathing) is damaged, or when there are ongoing leaks. |
| Ridge Cap Replacement & Partial Repair | Varies greatly depending on the scope of work and the presence of scaffolding | Costs vary based on the extent of ridge cap replacement, type of purlin, and the need for scaffolding.Ridge Cap Replacement & Plastering Price List | When ridge caps have lifted or blown off due to strong winds, or when purlins have rotted. If caused by natural disasters, it may be covered by fire insurance. |
*This is a guideline based on Kakeru Koumuten Co., Ltd.’s construction menu and performance records. The estimated cost for temporary scaffolding for a typical two-story house is around 110,000 to 130,000 yen, but it may vary depending on the building shape, area, road conditions, elevation, and other factors. The price will fluctuate based on the roof area, shape (hipped, gabled, complex roofs), slope, existing roofing materials, presence of asbestos, condition of the substrate, materials used, installation and removal of solar panels, and delivery conditions, so please confirm the exact amount after a site survey.
Examples Actual roofing construction case studies in Sagamihara City
The actual prices for Kakeru Koumuten Co., Ltd.’s roofing work can be viewed along with the details of the construction on the performance records page. Please use this as a reference for “how much it actually cost.”
Click here for roofing construction case studies conducted in Sagamihara City
In the list of roofing and rain gutter construction performance records, you can also view examples from other regions as well as cases of roof painting and replacement.
7 Points to Know When Getting a Roofing Estimate
There are seven main points to keep in mind when getting an estimate for roof renovation.
- Obtain multiple estimates and compare them with other companies
- Check if the contents of the estimate differ too much from other contractors
- Carefully check if there is a breakdown of materials and types
- Confirm if insurance or Sagamihara City subsidies can be used
- Check if the construction content matches your life plan
- Verify the warranty and after-support details
- Ensure the plan is suitable for the location and natural environment in Sagamihara City
We will explain each point in detail!
POINT 1 Always obtain multiple estimates and compare them with other companies
As mentioned earlier, the most important thing in roofing renovation work is obtaining multiple estimates. Obtaining multiple estimates means requesting estimates from several contractors and comparing them.
There are many contractors operating within Sagamihara City, and each contractor may have different construction methods and materials even for the same type of work. Therefore, the costs can vary significantly depending on the contractor you choose.
Even if the request is the same, if you decide based on only one estimate, you may not notice if you are being charged more than the market rate. By comparing multiple companies, you can understand the appropriate construction details and price range. If you proceed without obtaining multiple estimates,
“It leaked before the durability period they mentioned…”
“I contacted them about a problem, but I couldn’t reach them…”
the likelihood of experiencing failures or regrets increases, which is why we at Kakeru Koumuten recommend obtaining multiple estimates to all our customers.
Some contractors may strongly dislike the idea of obtaining multiple estimates and may pressure you with statements like,
“Material prices are going up”
“If you don’t start the work soon, it will require more expensive repairs”
and other tactics to rush the contract. Do not rush into a contract; make sure to obtain multiple estimates! If you already have estimates from other companies, we also accept non-face-to-face rough estimates based on other companies’ quotes and drawings.
POINT 2 Check if the contents of the estimate differ too much from other companies
When obtaining multiple estimates, it is also important to check if the contents differ too much from other companies. It is not uncommon for the construction area to be extremely large or the amount to be excessively high.
While it is not necessarily bad to have significant differences in amounts or construction details, make sure to confirm with the contractor the clear reasons for the differences.
POINT 3 Check if there is a breakdown of materials and other details
When you receive an estimate for roof renovation from a contractor, make sure to check whether a breakdown is provided.
Some contractors may only list the term “one set”, but this does not clarify what is included and how much each item costs. To put it another way, if the contractor can freely adjust the amounts, there is a high possibility that the costs will be inflated.
I recommend contractors that clearly state how much money is spent on what.
Since roofing sheets and ridge materials cannot be checked after installation, make sure that inexpensive materials are not being used to cut costs! Contractors who clarify their pricing will provide peace of mind for clients.
POINT 4 Check if insurance or subsidies from Sagamihara City can be used
To reduce the cost of roofing work, be sure to check with the contractor if fire insurance or subsidies can be utilized.
For example, if the roof has been damaged due to a typhoon or strong winds, there is a possibility that repair costs can be covered by the fire insurance’s “wind damage” compensation if the conditions such as contract details and damage status are met (general wear and tear is usually not covered). Additionally, roofing replacement work aimed at improving seismic performance or insulation upgrades for roofs and ceilings may be eligible for subsidies from local governments or the national government.
Using fire insurance or subsidies requires additional procedures. If the contractor has previously utilized fire insurance or subsidies for past roofing work, you can trust them with your project.
Subsidies and Grants for Roofing Renovations in Sagamihara City that May Be Applicable [Latest for 2026 (Reiwa 8)]
In Sagamihara City, the following systems may be available for roofing renovations, seismic upgrades, and insulation improvements. The conditions for application, contract, and commencement vary by system. Some systems, like the Sagamihara City seismic reinforcement construction subsidy, will be ineligible if construction contracts or commencement occur before the grant decision, so be sure to check the latest requirements for each system and consult during the estimation phase.
Seismic Diagnosis Up to 153,000 yen (There is also a free consultation service provided by the city)
Eligible properties are detached houses that obtained building confirmation before May 31, 2000, and wooden houses built under the new seismic standards between June 1981 and May 2000 may also qualify under certain conditions. For homes with heavy roofs like tile roofs, it is recommended to start with a seismic diagnosis.
Source: Sagamihara City Earthquake Countermeasures Subsidy for Detached Houses
Subsidy Rate 1/2; Maximum 1,150,000 yen (For households with only elderly members, those eligible for nursing care insurance, or households with disabled individuals, an additional 500,000 yen; for households below a certain income level, an additional 250,000 yen for a maximum of 1,650,000 yen)
The city will subsidize part of the costs for reinforcement work based on the results of the seismic diagnosis. Incorporating the replacement of a tile roof with a lightweight metal roof (roof weight reduction) into the reinforcement plan may qualify for this subsidy. The application process is a lottery system with a limited period and a cap on the number of cases (for the 2026 fiscal year, applications will be accepted in September for 25 cases).
Source: Sagamihara City Earthquake Countermeasures Subsidy for Detached Houses
Up to 1 million yen per unit (for houses built before 1991. For those built between 1992 and 2016, the maximum is 800,000 yen)
Energy-saving renovations such as insulation improvements for exterior walls, roofs (ceilings), and floors, as well as high-efficiency windows and water heaters are eligible. Insulation improvements for roofs and ceilings are one of the eligible works, but the maximum amount applies when combined with specified “required works” such as insulation for openings, structural insulation, and eligible equipment; it is not a system that provides the full amount for roof and ceiling insulation alone. There are no location requirements for contractors, and the target is generally houses built before December 31, 2016, with applications made by registered contractors (please check the official site for conditions regarding contract dates and start dates). The program will end once the budget cap is reached (by December 31, 2026, at the latest).
It is also possible to combine this campaign with “Advanced Window Renovation 2026 (up to 1 million yen per unit)” and “Water Heating Energy Saving 2026 (EcoCute up to 100,000 yen per unit, etc.).”
Source: Mirai Eco Housing 2026 Official Site
Other potential systems available in Sagamihara City (Kanagawa Prefecture’s energy-saving renovations, solar power, fire insurance, etc.)
Subsidy rate 1/3; maximum 150,000 yen
This program requires window insulation improvements and allows optional additional insulation for walls, ceilings, and floors. Roof insulation may be combined as “ceiling insulation.” The application must be made by the homeowner themselves, and contractors cannot apply on their behalf. Construction started before the grant decision is not eligible, so please check the official site for the latest requirements along with the application period (additional applications are first-come, first-served and limited).
Source: Kanagawa Prefecture Existing Housing Energy Saving Renovation Subsidy
Solar Power 80,000 yen; Storage Battery 200,000 yen (V2H 200,000 yen, ZEH 300,000 yen *all amounts are fixed)
If you are considering solar power or storage batteries at the same time as roof replacement or the roof overlay method, you may also be eligible for this subsidy. Applications for the first phase will be accepted from September 1 to 30, 2026, and for the second phase from February 1 to 26, 2027 (subject to a lottery if the number of applications exceeds the planned amount).
Source: Sagamihara City Residential Smart Energy Equipment Subsidy
Damage such as ridge cap blown off by typhoons or strong winds, slate cracking, rain gutter detaching, or rain gutters deforming due to snowfall in the Tsukui area may be covered under the “wind and snow damage” compensation of your fire insurance, provided that the contract details, deductible amount, and damage conditions are met. Aging deterioration is generally not covered, and applications must be made within three years of the damage. Kakeru Koumuten Co., Ltd. supports the preparation of necessary documents for insurance claims, including taking photos of the damage and creating estimates.
POINT 5 Is the roof renovation aligned with your life plan?
When considering construction, it is essential to confirm “Is the roof renovation in line with your life plan and needs?”
“The second floor is hot, and I am considering a roof renovation”
“I am considering a roof renovation due to leaks”
You may be considering a roof renovation due to triggers or issues like the above.
For example, if you have decided to move or demolish in 10 years, using highly durable roofing materials with a lifespan of over 40 years for “roof overlay method” or “roof replacement work” would be a waste of money. It is necessary to consider using roofing materials with a shorter lifespan or to explore roof painting as one of the options.
Similarly, when considering a roof renovation aimed at improving heat insulation and thermal performance due to the heat, simply performing regular roof painting or replacing with low-insulation roofing materials through overlay methods will not achieve the intended purpose, resulting in wasted work.
If the existing roofing material is slate (colonial) roofing, there are roofing materials that cannot be painted, so it is necessary to confirm the type of existing roofing material. Roofing materials such as “Colonial NEO” and “Pamir” that cannot be painted will result in wasted construction costs if painted.
There are many contractors who will casually propose painting work on roofing materials that cannot be painted, so caution is necessary. For roofing materials that cannot be painted, let’s perform appropriate roof renovations such as “roof overlay” or “roof replacement”!
See the list of roofing materials that cannot be painted or are not recommended for painting
POINT 6 Check the contents of the warranty and after-sales support
Depending on the construction details, there is a possibility that the work may not go as the customer wishes. It is recommended to choose a contractor who explains the warranty and after-sales support in advance, in case any troubles arise.
Regarding the warranty details, it is important to check not only the warranty period but also “leakage warranty” and “detachment of roofing materials and accessories”, to understand what is covered.
How long is the warranty period? What kind of after-sales support is available? Let’s confirm these points at the time of the estimate.
POINT 7 Check if the construction plan is suitable for the location and natural environment of Sagamihara City
Sagamihara City is located inland, with little concern for salt damage; however, the mountainous areas of Tsukui, Sagamiko, and Fujino experience snowfall and freezing, and the elevated areas along the Sagami River have strong winds. In snowy regions, it is necessary to check for the presence of snow guards, and in windy locations, ensure that the ridge base and roofing materials are secured to withstand strong winds. Additionally, since the summer sun can make the second floor quite hot, it is also a point of comparison to see if there are proposals for heat insulation and thermal insulation.
By thoroughly checking not only the costs but also the location of the building and the warranty conditions of the proposed roofing materials, you can avoid troubles after the construction. Be sure to confirm whether the plan is suitable for the location and conditions of the building! (For details on the precautions for each location in Sagamihara City, please refer to this section.)
【Sagamihara City】Steps for Roofing Renovation Estimates
We will explain in detail the steps to request an estimate for roofing renovation. Specifically, the process is as follows.
- Search for contractors that serve Sagamihara City
- Request an estimate
- Have a site survey conducted
- Compare the estimates
Most contractors will generally provide this service for free, but it’s a good idea to confirm whether there will be any costs involved, just to be safe!
STEP 1 Research contractors that serve Sagamihara City
Currently, most contractors have information available on the internet or through signage, so you can research there. When searching for contractors, aim to find multiple options with the intention of getting comparative estimates. Keeping in mind the seven points mentioned earlier will reduce the chances of making mistakes.
Additionally, you may find advertisements on public transportation like buses and trains, or flyers delivered to your home. If something catches your interest, it might be worth reaching out to them once.
That said, narrowing down to a few companies from the many available can be quite challenging. Therefore, it is recommended to read reviews on Google and other platforms carefully for reference and to contact companies with good ratings. When doing so, in addition to the rating points, it is also helpful to look at the number of reviews, posting dates, specificity of content, presence of施工 photos, and company responses to get a clearer picture of the company’s actual service.
STEP 2 Request a Quote
To narrow down quality contractors from roof construction estimates, it is important to request at least three companies. With only one or two companies, it becomes difficult to compare the details, increasing the likelihood of not finding a quality contractor. By obtaining estimates from three or more companies, you can compare prices, service contents, and responsiveness, making it easier to find a contractor that suits your needs.
STEP 3 Have a Site Survey Conducted
Once you have requested a quote, have the contractor conduct a site survey. Since the contractor will come to your home, be sure to ask any questions you have regarding the construction at that time. Examples of things you may want to ask or convey include:
- Communicate your requests and future life plans
- Whether the construction will be done by their own team
- Where the materials will be stored and the placement of scaffolding
- If you have preferred roofing materials or paints, let them know
- In the case of a cover method or roof replacement, confirm what materials will be used besides roofing materials, such as fasteners, ridge boards, sealing materials, and roofing sheets
STEP 4 Compare Estimates
Once you have received estimates from multiple contractors, please compare the estimates from each company. The three key points to pay attention to are:
- Check if the product names and manufacturer names are listed
- Check if the area and unit prices are listed
- Check if the processes and specifications are listed
Let’s check if the details such as the paint and materials used for the roofing work, as well as the manufacturer names, are clearly stated. If there are any unclear parts, make sure to confirm them with the contractor.
Be sure to check that the construction area is not abbreviated as “one set.” Contractors that provide detailed area descriptions are likely to have conducted a more accurate survey and can be trusted. If most of the estimate is listed as “one set,” be cautious.
Also check if detailed processes such as “scaffolding assembly” and “substrate treatment” are included. It is important that the main processes, product names, manufacturers, quantities, unit prices, and specifications are clearly defined, rather than just the number of items.
If you request Kakeru Koumuten, you can check the flow from inquiry to on-site survey, estimate, start of work, and completion on the construction flow page.
Comparison Points for Estimates of Each Roof Renovation
Finally, we will introduce the key items that must be checked in the estimates for the three typical types of roof renovation work listed below! If the items we are about to explain are not included in the estimate, we recommend confirming with the contractor whether they are part of the work!
7 processes + batten replacement
8 processes (check auxiliary materials)
Demolition & substrate + same processes as overlay method
*For painting the entire roof, overlay method, or replacement work, the installation of temporary scaffolding and mesh sheets is generally required for safety and to prevent scattering to neighboring areas. Conditions may vary depending on the shape of the building and the scope of work, so scaffolding details will be omitted in subsequent processes.
Construction 1 Comparison Points for Roof Painting Estimate Items
First, we will explain the important items in roof painting work in detail for each process! Roof painting is based on “three coats: primer, middle coat, and top coat”, and in the case of slate roofs, the presence or absence of t spacer (separation material) and rust prevention for metal parts is crucial for checking the estimate.
View the 7 processes of roof painting + batten replacement in detail (tap to open)
1. High-Pressure Washing
The entire roof is washed with high pressure. If the dirt is severe, bio-cleaning is recommended.
2. Protection
We will protect areas that may get dirty during the roof painting, such as near the exterior walls.
3. Surface Preparation
We will repair cracks in the roof and scrape off any old paint or dirt that could not be removed during washing. Rust on metal parts will also be scraped off.
4. Rust Prevention for Metal Parts
We apply rust prevention to metal parts such as sheet metal and snow stops. If this item is missing, it is often the case that rust prevention is not applied, which increases the likelihood of rust developing from the metal parts within a few years, so caution is necessary.
5. Primer
There are different types of primers, and it is necessary to choose a primer suitable for the existing roofing material and condition. For example, specialized primers or undercoats must be used for metal roofs. If the existing roofing material is slate and water-based paint has been applied, using a solvent-based paint without a specialized primer can lead to problems such as the paint film shrinking.
To prevent issues and to prolong the life of the paint film, it is essential to use a primer that matches the substrate and condition. Always ensure that a specialized primer is used after understanding the condition of the substrate!
6. Installation of T Spacer (Separation Material)
This is a requirement only for slate roofs. Slate roofs are designed to allow rainwater and moisture to escape through the overlaps of the roofing material.If the overlaps of the roofing material are filled with paint during roof painting, it will reduce ventilation, leading to substrate corrosion and potentially damaging the roofing material.
Therefore, installing spacers after the primer ensures gaps in the overlaps of the roofing material. Typically, two spacers need to be installed for each slate, and the installation positions are predetermined. However, spacers cannot be installed on roofing materials that are warped more than 4mm.
7. Intermediate and Top Coats
Basically, roof painting consists of three coats: primer, intermediate, and top coat. This item is often included by all contractors, but if it is not mentioned, be sure to confirm! There are differences in durability and heat resistance characteristics between the intermediate and top coat paints, so it is recommended to carefully decide which paint best meets your needs rather than just choosing based on price.
+ Replacement of the Ridge Board (Check of the Ridge Substrate)
This is not related to the roof painting process, but if you are painting a slate roof that is over 10 years old, we recommend checking the condition of the purlin by partially removing the ridge cap. If the existing purlin is made of cedar, its durability is estimated to be around 10 to 15 years, so replacing it at the same time can reduce costs compared to doing a standalone purlin replacement. Let’s at least get a quote and consider it!
There are different types of purlins, such as “wooden” and “plastic,” and they have varying durability, so
“Are the fasteners for the ridge cap nails or screws?”
Make sure to check these points carefully!
Here is the price list for Kakeru Koumuten’s roof painting work!
Construction 2 Comparison Points for Roof Overlay (Cover Method) Estimate Items
The roof overlay method involves installing new roofing materials over the existing slate roof without dismantling it. This is the most requested construction for roof renovations in Sagamihara City. We will explain the important processes and items in the overlay method!
Particularly important points to compare are “roofing sheet (underlayment material),” “ridge substrate (purlin),” “fasteners,” and “sealing material.” All of these will be hidden after construction, and if corners are cut here, even the most durable roofing materials can leak early.
View the 8 processes of the roof overlay method in detail by item (tap to open)
1. Dismantling Existing Ridge and Snow Stops
We will dismantle parts that interfere with the overlay method, such as the existing ridge cap, purlin, and snow stops.
2. Underlayment Installation (Roofing Sheet)
This item involves applying a waterproof sheet to the existing roof. This is a crucial item to compare carefully! To summarize, there are two points to check.
“Is the roofing sheet suitable for the existing roof?”
For example, if the roofing material is Super Galtect (with a durability of about 35 years) and a standard asphalt roofing sheet (with a durability of about 10 years) is used, there will be a significant difference in durability between the roofing material and the roofing sheet. Even if you use highly durable roofing materials, there may be cases where leaks occur before the expected durability period, so caution is necessary.
For roofing sheets suitable for existing roofs, for example, if the existing roofing material is “Colonial NEO” or “Pamir”, it is important to select adhesive roofing sheets suitable for the overlay method, such as “Tajima Roofing/Tadis Self Cover” (the appropriate product may vary depending on the condition of the existing roof and the manufacturer’s installation guidelines). This is why identifying the existing roofing material during the on-site investigation is essential!
There are many types of underlayment materials, each with different durability. Since there are various types such as heat-insulating roofing sheets, make sure to check if the roofing sheet used meets your needs!
Additionally, when using adhesive roofing sheets, if there is a lot of moss on the existing roof, the adhesive roofing sheets may not adhere properly. If the dirt is severe, it is necessary to perform high-pressure washing.
Check whether there is an item for high-pressure washing and confirm any additional costs if high-pressure washing is required!
3. Flashing (valley flashing, ornamental flashing, edge flashing, waste board flashing, etc.)
There are two points to check regarding flashing!
“Is the ornamental flashing of the setback type being used?”
Using non-genuine flashing may result in differences in durability, and depending on the manufacturer’s warranty conditions, the use of genuine flashing may be required. Some contractors may use aftermarket flashing to reduce costs, so be sure to check the warranty conditions as well!
Since the roof overlay method raises the roof higher than the existing state, rainwater may overflow the rain gutter. Depending on the position relationship with the existing rain gutter, using setback type ornamental flashing can allow rainwater to flow properly into the rain gutter. If you are not replacing the rain gutter, check how the type of ornamental flashing and the rain gutter will fit together!
4. Main roof installation
This section involves the installation of the main roofing material! What to check in this section is the roofing material “fasteners”! Fasteners can be nails or screws, and they can be made of either iron or stainless steel. Stainless steel screws are more expensive but provide better wind resistance.
If there is no mention of fasteners, confirm what type of fasteners will be used,
“What are the additional costs if the fasteners are changed?”
Make sure to check these thoroughly!
Aijii Industry is the manufacturer of Super Galtect. The repair screws are made of stainless steel and are specifically designed for the roof overlay method. It’s reassuring that they are from the same manufacturer as the roofing material!
5. Snow Stops
Also, check whether genuine manufacturer products are being used for the snow stops! If using aftermarket products, it is essential to confirm compatibility with the roofing material, the manufacturer’s installation guidelines, and warranty conditions, as this could lead to leaks or voiding of the warranty.
6. Ridge Underlayment (Nail Board)
The ridge underlayment serves as the base for the ridge cap! It is often referred to as a nail board. This is also a critical item to check carefully, just like the underlayment! There are various types of ridge underlayment, such as “wood,” “resin,” and “metal,” each with different durability lifespans. Generally, we recommend using ridge underlayment that matches the durability lifespan of the new roofing material.
The above photos show wooden and plastic battens. The durability years are just a guideline.
| Type of ridge base (batten) | Estimated durability years |
|---|---|
| Wooden (cedar) | About 10-15 years |
| Plastic | About 20 years |
| Metal (galvalume steel) | About 30-35 years |
For example, if you use a wooden ridge base (estimated durability of about 10-15 years) with a Super Galtect roof material (estimated durability of about 35 years), you will eventually need to replace only the ridge base. Since the condition of the ridge base cannot be checked from the outside, corrosion may progress unnoticed, leading to issues such as the ridge flashing being blown away. The plastic batten also has an estimated durability of about 20 years, which does not match the durability of Galtect. Thermal deformation and cracking are also disadvantages of plastic battens.
In the case of Super Galtect, if the ridge base is made of galvalume steel, the durability will be equivalent, and unlike wood or plastic, it will not crack, making it highly wind-resistant and recommended! Be sure to confirm what material will be used for the ridge base!
7. Installation of ridge flashing and rain diverter flashing
What you should check here is the “fasteners” and “flashing (sealer)” for the ridge flashing!
First, there are nails and screws with waterproof packing for the fasteners of the ridge cap. If nails are used, they may come loose or have low holding power, which can lead to the ridge cap detaching. Make sure that the fasteners used are always “screws with waterproof packing.” Additionally, since this area will be exposed to the outside, be sure to check whether the material is “stainless steel.”
A sealer is something like a packing that prevents rainwater from entering at the ridge. Since it is not visible from the outside, many contractors do not install it. If the item “sealer” is not listed, be sure to confirm whether it will be installed!
8. Sealing Material
Both the roof overlay (cover method) and roof replacement work require waterproofing with sealing at the rain stop and ridge areas. The necessary confirmation for this item is the type of sealing material. Sealing materials have a durability period, ranging from about 8 years to 30 years.
If this sealing material deteriorates, it often leads to leaks, so it is best to use high-durability materials! Since the number of sealing locations on the roof is not that large, using high-durability sealing does not result in a significant cost difference, so we recommend using high-durability sealing.
As shown in the table above, there is a significant difference in durability between general sealing materials and high-durability sealing materials!
For the price list of roof overlay (cover method) construction, click here!
Construction 3 Comparison Points for Roof Replacement Estimate Items
Roof replacement work involves dismantling the existing roofing material and installing a new roof. The difference from the overlay method is that the existing roof is dismantled. The three items “dismantling and disposal costs,” “substrate adjustment,” and “roof sheathing” are unique confirmation points for replacement, and thereafter, the processes are the same as items 2 to 8 of the overlay method.
See the unique three processes of roof replacement work in detail (tap to open)
1. Roof Dismantling
We will remove and dismantle the existing roofing materials such as tiles and slate. The disposal costs for the existing roofing materials vary depending on the type of materials and the presence of asbestos. When arranged in order of disposal costs from lowest to highest, they are as follows:
2. Substrate Adjustment
This depends on the condition of the substrate, but if the building is older or if it has a tile roof, there is often “distortion in the substrate.” If the distortion is left unaddressed and new roofing materials are installed, the distortion will also affect the new roofing materials, making substrate adjustment necessary.
3. New Substrate Installation (Roof Sheathing)
This involves installing new roof sheathing across the entire roof after dismantling and cleaning the roof. If the existing roofing material is slate or if the building is relatively new, this may not be necessary. However, if the building is older or has a tile roof, this is often required.
The subsequent processes will be the same as steps 2 to 8 of the roof overlay (cover method).
Click here for the roofing replacement cost table!
Regional Characteristics to Consider for Roof Renovation in Sagamihara City
Sagamihara City is the second largest city in Kanagawa Prefecture after Yokohama, with the specifications required for roofs varying greatly from the flat Sagamino Plateau around Hashimoto and Sagamihara Station to the mountainous areas of Tsukui, Sagamiko, and Fujino. During Typhoon No. 19 in 2019, a maximum instantaneous wind speed of 34.8 m/s and a daily rainfall of 361.5 mm (the highest on record) were recorded at the Sagamihara observation point, leading to numerous requests for roof repairs due to blown-off ridge caps and leaks. When comparing estimates, be sure to check if the specifications are suitable for your home’s location.
Due to lower temperatures and the likelihood of snow and freezing compared to urban areas, the installation of snow guards and specifications for ridge substrates and fasteners that can withstand the weight of snow are important. This area also experienced concentrated landslides during Typhoon No. 19, so be sure to check the drainage capacity of valley metal and rain gutters, as well as the waterproof performance of underlayment materials during the estimation.
While there is little concern about salt damage inland, this area tends to get hot in the summer due to strong sunlight, making the second floor warmer. Let’s compare whether the proposal considers “heat countermeasures” with heat-insulating paint, heat-insulating roofing, and integrated insulation metal roofing materials. Since the area is well-organized, scaffolding and material delivery are relatively smooth.
The edges of the terraces and elevated areas have strong wind flow, so ridge flashing with stainless steel waterproof packing screws and ridge substrate made of Galvalume steel are recommended for wind-resistant specifications. Locations with slopes or stairs may require extra effort for material delivery, so be sure to check if delivery costs are included in the estimate.
There are about 33,000 houses in Sagamihara City that meet the old seismic standards, with approximately 11,000 wooden single-family homes considered to have insufficient seismic resistance. Replacing tile roofs with lighter metal roofs (lightening the roof) directly improves seismic resistance. It is worth considering roof renovations and seismic reinforcement together, starting with the city’s seismic diagnosis subsidy (up to 153,000 yen).
Summary | How to Avoid Mistakes in Roof Renovation Estimates in Sagamihara City
The key points to pay special attention to when getting roof renovation estimates are the following seven:
- Obtain multiple estimates and compare with other companies
- Check if the contents of the estimate differ too much from other companies
- Confirm if there is a breakdown of materials and other details
- Check if insurance or subsidies can be used
- Verify if the proposal matches your life plan and needs
- Review the warranty and after-support details
- Ensure the construction plan is suitable for the location and natural environment of Sagamihara City
By referring to the items introduced this time, it will be easier to distinguish between reputable contractors and those that are not, so please give it a try!
Additionally, roof painting, overlay methods, and replacements each have their advantages, so in the long run, overlay methods or replacements may be more cost-effective. Let’s consider carefully.
Reasons Why Kakeru Koumuten is Chosen for Roof Renovations in Sagamihara City
Kakeru Koumuten Co., Ltd. offers free estimates and inspections! We have received many requests for roof work in Sagamihara City and have a wealth of experience! We are happy to provide consultations for estimates only.
Our headquarters is located in Aoba-ku, Yokohama, and we can respond to some areas, such as Minami-ku, Sagamihara, in as little as 20 minutes. Kakeru Koumuten Co., Ltd. is a remodeling company strong in exterior renovations, and we carry out everything from temporary scaffolding work to roof work and exterior painting work entirely in-house. Since one person is assigned to handle everything from investigation and estimation to construction, what you communicate is directly reflected on-site.
We own our own scaffolding materials, eliminating intermediary margins, so we are confident that our “cost, quality, and planning” for exterior renovation work are unmatched compared to other companies! We have sheet metal and painting specialists on staff.
We are confident in our exterior renovations, so competitive estimates are very welcome! The names of products such as roofing, batten, fasteners, and sealing are clearly stated in the estimate. You can also check our roofing work performance to see the finished results.
We offer a robust construction warranty and aftercare, receiving high praise for our cost performance and appropriate proposals that align with our customers’ future life plans! We will also guide you regarding the issuance of warranty certificates from roofing material manufacturers for overlay and re-roofing (warranty conditions vary based on products and construction conditions).
Payment is made after the completion of the work. We do not require upfront or interim payments, so there are no worries about “being rushed into a contract” or “concerns about advance payments.” We accommodate bank transfers, collections, and loans.
We assist in preparing necessary documents for fire insurance claims related to typhoon and snow damage, as well as for seismic diagnosis subsidies from Sagamihara City and national energy-saving subsidies, based on our past achievements. If there are any applicable systems, we will inform you during the estimation phase (the acceptance of subsidies and payment of insurance claims depend on the review of each system and insurance company).
We are committed to taking your requests seriously so that you can think, “I’m glad I asked!”. If you have any concerns regarding roofs, rain gutters, exterior walls, or exteriors, please consult Kakeru Koumuten Co., Ltd.! (For more details on exterior renovations and roof repairs in Minami-ku, Sagamihara, click here)
Roof Renovation Estimates in Sagamihara City | Frequently Asked Questions
Is the roof renovation estimate in Sagamihara City free?
How long does it take from requesting an estimate to submission?
Which is more common in Sagamihara, roof overlay or roof replacement?
How long does a roof renovation take?
The ridge cap blew off in the typhoon. Can I use my fire insurance?
Can I use subsidies from Sagamihara for roof renovations?
A visiting contractor told me, “It’s dangerous if you don’t fix the roof immediately.” Is that true?
Can you review estimates from other companies?
Snow accumulates in the Tsukui and Sagamiko areas. Are there any precautions for roof renovations?
Free estimates and inspections / We welcome competitive estimates / Complete in-house construction / Payment after completion
We also provide information on roofing costs and roof overlay (cover method) pricing plans. We look forward to your inquiries.
Service Areas
Kakeru Koumuten can serve not only within Sagamihara City but also almost all areas of Kanagawa Prefecture and Tokyo.
Sagamihara City (All 3 wards)
See other service areas in Kanagawa Prefecture and Tokyo
Kanagawa Prefecture
Yokohama City (Aoba Ward / Asahi Ward / Izumi Ward / Isogo Ward / Kanagawa Ward / Kanazawa Ward / Konan Ward / Kohoku Ward / Sakae Ward / Seya Ward / Tsuzuki Ward / Tsurumi Ward / Totsuka Ward / Naka Ward / Nishi Ward / Hodogaya Ward / Midori Ward / Minami Ward) / Kawasaki City (Kawasaki Ward / Saiwai Ward / Nakahara Ward / Takatsu Ward / Miyamae Ward / Tama Ward / Asao Ward) / Yokosuka City / Kamakura City / Fujisawa City / Chigasaki City / Hiratsuka City / Hadano City / Isehara City / Atsugi City / Ebina City / Yamato City / Zama City / Ayase City / Zushi City / Miura City / Odawara City / Minamiashigara City / Aikou District, Aikawa Town / Takatsu District, Samukawa Town / Nakagun, Oiso Town / Nakagun, Ninomiya Town / Miura District, Hayama Town / Ashigarakami District (Oi Town / Kaisei Town / Nakai Town / Matsuda Town / Yamakita Town) / Ashigarashimo District (Hakone Town / Manazuru Town / Yugawara Town)
Tokyo
Chiyoda Ward / Chuo Ward / Minato Ward / Shinjuku Ward / Bunkyo Ward / Taito Ward / Sumida Ward / Koto Ward / Shinagawa Ward / Meguro Ward / Ota Ward / Setagaya Ward / Shibuya Ward / Nakano Ward / Suginami Ward / Toshima Ward / Kita Ward / Arakawa Ward / Itabashi Ward / Nerima Ward / Adachi Ward / Katsushika Ward / Edogawa Ward / Hachioji City / Tachikawa City / Musashino City / Mitaka City / Ome City / Fuchu City / Akishima City / Chofu City / Machida City / Koganei City / Kodaira City / Hino City / Higashimurayama City / Kokubunji City / Kunitachi City / Fussa City / Komae City / Higashiyamato City / Kiyose City / Higashikurume City / Musashimurayama City / Tama City / Inagi City / Hamura City / Akiruno City / Nishitokyo City / Nishitama District (Mizuho Town / Hinode Town / Hinohara Village / Okutama Town)
・Parts of Saitama Prefecture, Chiba Prefecture, and Yamanashi Prefecture (please consult us)
Helpful information about exterior renovations can be found here!
- Reasons Why Kakeru Koumuten Is Chosen for Exterior Renovation and Roof Repair in Aoba-ku, Sagamihara
- Self-Estimate!! Easy Exterior Renovation Estimate Simulation!
- About the Costs of Roof Overlay (Cover Method) | Kakeru Koumuten’s Roof Construction Plan!
- About the Costs of Exterior Painting | Kakeru Koumuten’s Exterior Painting Plan!
- About the Costs of Leak Repairs | Kakeru Koumuten’s Leak Repair Plan!
- About the Costs of Ridge Cap Replacement and Surface Plaster | Kakeru Koumuten’s Construction Plan!
- Latest Information | Subsidies and Reduction Systems Available for Renovation!
- About the Costs of Exterior Wall Cleaning | Exterior Washing Plan Without Scaffolding!
We welcome consultations via LINE as well◎
We are also updating our Instagram regularly◎ Please follow us!
株式会社翔工務店へ
株式会社翔工務店は平均年齢２０代後半の若い会社ですが、技術はどこにも負けていません。
いちばんの強みは、足場工事、屋根工事、塗装工事とすべて自社で行えること。一般には分業されるこの業界にあって、一式で頼めるので管理に手間がかからず、コストも抑えることが出来ます。何より、トラブルがあればすぐにかけつけます！
自信をもって、宣言できます。私たちは、神奈川で一番若くて親切なリフォーム屋です！
