[Inagi City, Tokyo] Renovation of Vacant Houses and Used Properties | Costs, Subsidies, and Case Studies

Our Services

At Kakeru Koumuten Co., Ltd., we specialize in various construction services to enhance your home. Our offerings include:

Roofing

We provide high-quality roofing solutions, including the roof overlay (cover method) to ensure durability and protection against the elements.

Rain Gutters

Our rain gutter services are designed to effectively manage water flow and prevent damage to your property.

Exterior Painting

We offer professional exterior painting services to give your home a fresh and appealing look.

Why Choose Us?

With years of experience in the industry, we are committed to delivering exceptional quality and customer satisfaction. Our team of skilled professionals is dedicated to providing reliable and efficient services tailored to your needs.

Contact Us

If you have any questions or would like to request a quote, please feel free to contact us at 123-456-7890.

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At Kakeru Koumuten Co., Ltd., we specialize in roofing, rain gutters, and exterior painting. Our experienced team is dedicated to providing high-quality services tailored to your needs.

Whether you need a roof overlay (cover method) or a new rain gutter installation, we have the expertise to ensure your home is protected and looks great.

Contact us today to learn more about our services and how we can help you with your next project.

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[open]summary{cursor:pointer;list-style:none;position:relative;padding:16px 50px 16px 54px;font-weight:700;color:var(–kk-ink);} .kk-qa>summary::-webkit-details-marker{display:none;} .kk-qa>summary::before{content:”Q”;position:absolute;left:16px;top:50%;transform:translateY(-50%);width:28px;height:28px;background:var(–kk-blue);color:#fff;border-radius:8px;text-align:center;line-height:28px;font-weight:800;} .kk-qa>summary::after{content:””;position:absolute;right:20px;top:50%;width:9px;height:9px;border-right:3px solid var(–kk-blue);border-bottom:3px solid var(–kk-blue);transform:translateY(-70%) rotate(45deg);transition:transform .2s;} .kk-qa[open]>株式会社翔工務店は、屋根工事、雨樋、外装塗装を専門とする地元の工務店です。私たちのサービスは、品質と信頼性に基づいており、地域の皆様に安心してご利用いただけるよう努めています。私たちのチームは、経験豊富な職人で構成されており、最新の技術と材料を使用して、最高の結果を提供します。

私たちの屋根カバー工法は、既存の屋根の上に新しい屋根を重ねる方法で、コストを抑えながらも耐久性を向上させることができます。雨樋の設置や修理も行っており、雨水の流れをスムーズに保つことで、住宅の保護に貢献します。外装塗装は、見た目を美しく保つだけでなく、建物の寿命を延ばすためにも重要です。

お見積もりは無料で行っており、どんな小さな質問でもお気軽にお問い合わせください。私たちのサービスに興味がある方は、ぜひご連絡ください。あなたの大切な家を守るお手伝いをさせていただきます。

For those considering renovation of used properties and vacant houses in Inagi City

I bought a used property, but I’m not sure if the renovation estimate I received is reasonable.

This is my first full renovation, and I’m worried about making mistakes.

I want to make the most of subsidies and grants.

For such concerns, Kakeru Koumuten Co., Ltd., which has numerous achievements in Inagi City, will clearly explain the key points for a successful renovation.

Obtain estimates from at least 3 companies!

01Reasons for the Increase in Renovations of Used Properties and Vacant Houses in Inagi City

Inagi City, located in Tokyo, is situated in the Tama Hills, featuring a part of the Tama New Town and a residential area with many slopes. It is an area blessed with greenery and leisure activities, including pear and grape orchards and Yomiuri Land.

The developed residential areas are experiencing a generational shift, leading to active circulation of used houses. This is why, in Inagi City, the option of “buying a used house or condominium and renovating (renovating) it to suit your lifestyle” is expanding.

02Reasons for Renovating Vacant Houses and Second-Hand Properties

In recent years, the Japanese housing market has expanded options not only for new constructions but also for utilizing second-hand properties through renovations. There is a growing interest in living in renovated second-hand houses. Here, we explain the typical reasons for renovating vacant houses and second-hand properties.

Reason 1 To Live Comfortably as Your Own Home

The most common reason for purchasing and renovating a second-hand property is “to live comfortably.” Older houses often have issues with the roof, exterior walls, and plumbing, making them difficult to live in as they are. By renovating and upgrading the facilities and interior, you can create a comfortable living environment. Additionally, by changing the layout and refreshing the interior, you can finish the home to suit your family’s lifestyle while keeping costs lower than new construction.

Reason 2 To Increase Asset Value for Sale

More people are purchasing and renovating second-hand properties with the intention of selling them. Second-hand houses are often valued low in their current state, but renovations can enhance their appearance and performance, increasing their value as properties.

Reason 3 To Utilize as Investment or Business

For purchases made for investment or business purposes, renovations are essential. By transforming them into stylish rentals or share houses, you can differentiate them from other properties, and depending on the location and planning, you can expect improved profitability. Initial costs can be lower than new constructions, and depending on the use and conditions, they may also qualify for subsidies or tax incentives, leading to an increase in people utilizing vacant houses for business.

03Points to Consider When Renovating Vacant Houses and Second-Hand Properties

Point 1 Choose a Reliable Construction Company

First and foremost, it is essential to select a contractor you can trust to handle your renovation with peace of mind. For used properties, since there were previous occupants, the internal structure and condition are often not clear until you actually see them. Choose a contractor who can carry out the work thoroughly according to your wishes, the structure of your home, and the surrounding environment, and who also provides aftercare following the construction.

Point 2 Always Check the Condition of the Building

For used properties and vacant houses, it is crucial to confirm which parts are deteriorating and to what extent beforehand. Since other people have lived there before, the internal damage is often not apparent without investigation. Make sure to understand any hidden deterioration through a current condition survey before starting construction.

Point 3 Review Earthquake Resistance and Insulation Performance

Particularly important in the renovation of used and vacant houses is the review of earthquake resistance and insulation. The earthquake resistance standards were significantly revised in 1981, and homes built before that may not meet current standards. Furthermore, in 2000, regulations regarding joints and foundations were strengthened, making older buildings more likely to lack earthquake resistance. Check the condition of the building before starting construction and be sure to check earthquake resistance and insulation performance.

Point 4 Check Subsidy Programs and Renovation Tax Deductions

To keep construction costs down, it is important to check for subsidies and renovation tax deductions. Subsidies are provided by the national and local governments, supporting part of the costs for earthquake retrofitting, energy-saving construction, and barrier-free renovations. Tax deductions include the “housing loan tax deduction” when using a mortgage, and there are systems where part of the costs can be deducted for certain works even with personal funds. Since these can sometimes be used in combination, it is essential to check in advance and plan to utilize them strategically for a successful renovation (for the latest information, see this subsidy section).

04 Cost Estimates for Renovating Vacant Houses and Used Properties

The renovation costs for used properties and vacant houses vary significantly based on the extent of damage and the scope of work. First, please understand the approximate market rates by area to serve as a guideline for your financial planning (the table below provides general estimates for single-family homes. The interior is based on a room of about 6 tatami mats, and the exterior is based on the indicated scope of work. Actual estimates will be provided after a site survey).

1. Roof and Exterior Walls

2. Interior (Interior Finishing)

3. Water Facilities

4. Equipment and Infrastructure

5. Waterproofing and Earthquake Resistance

6. Exterior Works

* The above are general estimates. Costs may vary depending on the presence of scaffolding, the condition, grade, and area of the building. Waterproofing for rooftops and updates to plumbing and wiring for the entire house may exceed the above estimates depending on area and method. Please confirm the exact costs through a free on-site survey and estimate.

Please see the construction menu and price list for more details!

05[Latest 2026] Subsidies and Grants Available in Inagi City

* The following information is as of September 2, 2026. The content, duration, and budget of the systems change annually, and many will end once the budget limit is reached. Please check with our company or the respective offices for the latest information before applying. Kakeru Koumuten can assist with confirming the systems and providing necessary documents, but the applicants and application methods may differ depending on the system.

National Program: Housing Energy Efficiency 2026 Campaign

The government is implementing multiple subsidy projects targeting energy-efficient renovations under the “Housing Energy Efficiency 2026 Campaign.” Construction related to insulation, windows, and water heaters may be eligible for combined use of these subsidies.

Tokyo Metropolitan Program

Inagi City Programs

06Customer Voices

Exterior Renovation Case Studies in Inagi City

07How to Choose a Renovation Contractor for Used Properties and Vacant Houses in Inagi City

There are many renovation companies that serve Inagi City, and it can be confusing to decide which one to choose. When requesting renovations, be sure to check the following 5 points.

1. Experience in renovation work

Many renovation contractors publish their project achievements on their websites. If a contractor provides detailed explanations of the process with photos, it makes it easier to visualize the outcome after the request, giving you peace of mind. If you have concerns, choose a contractor with ample experience.

Google and review sites can also be helpful. It is important to check low ratings, the company’s responses, and the timing of the posts. In particular, Google reviews are useful, but do not decide solely based on reviews; make a comprehensive judgment considering project achievements, estimates, and warranty details.

2. Check for warranties and after-sales maintenance

When choosing a contractor, be sure to check for the presence or absence of warranty. If you are within the warranty period, there may be cases where repairs are done for free. The duration varies by contractor and paint, but typically ranges from 1 to 10 years (emergency repairs and partial repairs are often not covered). Some contractors also offer after-service separate from the warranty, so be sure to check that as well.

Kakeru Koumuten Co., Ltd. provides a warranty for all exterior renovations and sealing work. We also conduct after maintenance, sending out annual notification DM so that annual inspections are possible.
Click here for more details on Kakeru Koumuten’s warranty and after maintenance

3. Obtain estimates from multiple contractors (at least 3 companies)

When requesting renovations, be sure to obtain estimates from multiple contractors. Even for the same construction content, warranties, after-service, and prices can vary significantly. Having multiple estimates makes it easier to negotiate prices.

When comparing estimates, it is important to look at not just the costs, but also the “items in the estimate,” “check the undercoat materials, sealing materials, and paint for auxiliary parts,” and “confirm the process” in detail. Lowering the rank of auxiliary parts or skipping processes can reduce costs, so it is essential to not judge solely based on price.
Click here for detailed points on comparing estimates

4. Confirm whether they perform renovations in-house

At Kakeru Koumuten Co., Ltd., we conduct detailed hearings and investigations regarding the existing “condition,” “location,” “base materials,” “desired durability,” and “design” to propose the optimal plan. While there is nothing inherently wrong with a system where partner companies perform the construction, it is important to confirm whether the contracting company understands the construction content and has clear responsibilities for quality control and warranty. If they perform in-house construction, it is easier to coordinate with the site, allowing for quicker responses in case of any issues.

5. Check if they offer color simulations and perspective drawings

Choosing colors and visualizing the finished look for both exterior and interior can be challenging. With simulations, you can reduce the risk of disappointment from “it looks different than I imagined.” Since it’s difficult to redo once the work is done, it is recommended to choose a company that can provide flexible simulations.

08Reasons Kakeru Koumuten is Chosen for Renovations of Used Houses in Inagi City

One reason is that “Kakeru Koumuten also serves Inagi City,” but
“Our unique approach to renovating vacant and used properties that cannot be imitated by other companies”
has received high praise from many customers.

1. Equipment Specialized for In-House Renovations

Kakeru Koumuten has established warehouses and material storage to provide high-quality renovations at low cost. We have 5 bases centered around Aoba-ku, Yokohama for material storage and showrooms.

In-House Scaffolding Materials

For exterior renovations, temporary scaffolding is essential, and we can construct it using our own scaffolding materials and in-house scaffolding team. By not outsourcing, this leads to cost cuts on scaffolding work. We own scaffolding materials for approximately 50 single-family homes.

Materials stored in our large warehouse

We store roofing materials and paints. By placing large orders at once, we can procure materials at lower prices, and since we always have stock available, we can respond quickly in emergencies. We also have various tools ready for different types of construction, including compressors and cleaning machines.

In-house waste separation

In exterior renovations, various types of waste such as paint, wood, and metal are generated. While many contractors dispose of them together, we separate and recycle waste, significantly cutting waste disposal costs.

Showroom dedicated to exterior renovations

In our showroom, you can not only have meetings but also check the actual paint colors and a wide range of catalogs. You can also verify heat resistance using a heat-resistant paint testing machine and color simulation. The showroom is a 3-minute walk from Eda Station in Aoba-ku, Yokohama. It is also accessible from within Tokyo.

2. Complete In-House Construction

A major strength of Kakeru Koumuten is our complete in-house construction. By maintaining a consistent system from inquiry to project completion, we can keep costs down while providing high-quality renovations. A single representative handles everything from the estimate to project completion, ensuring smooth communication without changes in personnel for sales and construction management. All work, from temporary scaffolding to exterior painting and roof renovations, is carried out by our own skilled craftsmen. We are confident in our plans and costs, so we welcome competitive estimates.

3. Various Permits and Skilled Workers

We have obtained construction industry licenses as well as permits for industrial waste collection and transportation. We also have nationally certified sheet metal workers and painting specialists on staff, ensuring confidence in our construction techniques. We are capable of handling large-scale painting projects for factories and apartment complexes.

4. Warranty and Aftercare Maintenance

Exterior painting and joint sealing work come with a warranty. Aftercare maintenance is available every year, and we send out notification DM annually. If you have concerns about the warranty, please click on the image above for confirmation.

5. Flexible and Prompt Response

We are equipped to handle various exterior troubles and situations. If you cannot access the roof at height, we can respond using a drone. We also use a thermal imaging camera for leak investigations. We respond according to our customers’ wishes and also accept emergency measures for sudden leaks from the exterior walls only.

6. Human Resource Development

We create various models for skill enhancement and conduct practical training. Since exterior renovations vary in construction methods and materials based on existing materials and shapes, we regularly conduct technical improvement education to ensure each staff member can handle various sites.
Click here for company information

7. Flexible Simulations for Both Exterior and Interior!

Kakeru Koumuten is dedicated to helping you choose colors and designs for your important building renovations, both exterior and interior, to ensure your satisfaction.

7-1. Exterior Renovation Simulation

We can provide color simulations for exterior wall painting, as well as simulations for metal siding and roof overlays. We can create simulations from actual photos of your building and suggest several color patterns based on our recommendations. We also accommodate “test painting” and “arranging paint boards” to confirm the actual color tones.

7-2. Interior Renovation Simulation

We also support simulations and perspective drawings for interior renovations. Based on your preferred image, such as a modern style, we will propose recommended simulations. We create realistic perspectives from actual floor plans.

8. We also handle solar panel and storage battery installation work!

More customers are introducing solar equipment, which has abundant subsidies, in conjunction with renovations of used properties. Kakeru Koumuten Co., Ltd. also handles solar equipment installation and will propose solar panels tailored to the shape of your roof. We can also accept requests for estimates and power generation simulations only.

09Renovation of Used Properties and Vacant Houses in Inagi City | Frequently Asked Questions

We will answer the most frequently asked questions from those considering renovations of used properties and vacant houses in Inagi City.

View Kakeru Koumuten’s construction examples
View construction menu and price list

10Features of Inagi City

Inagi City, Tokyo, is located in the Tama Hills and features a part of the Tama New Town along with a residential area with many slopes. It is an area blessed with greenery and leisure, including pear and grape orchards and Yomiuri Land.

The developed residential areas are now experiencing a generational transition, and the choice of living on through used properties and renovations has taken root. Kakeru Koumuten is headquartered in Aoba-ku, Yokohama, and we widely accept exterior and interior renovations throughout Kanagawa and Tokyo Prefectures. We can perform all construction in-house, including wall covering methods.

Areas We Can Renovate

Kakeru Koumuten accepts requests throughout all of Kanagawa and Tokyo Prefectures.

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