目次
- 1 If you are looking for an exterior siding contractor in Kakeru Koumuten, Chigasaki City, Kanagawa Prefecture
- 1.1 What is the exterior cover method?
- 1.2 Examples of exterior wall cover work
- 1.2.1 1. Painting of Accessory Parts
- 1.2.2 2. Removal of Equipment
- 1.2.3 3. Substrate Adjustment
- 1.2.4 4. Waterproof Paper Installation (may not be necessary)
- 1.2.5 5. Installation of Battens
- 1.2.6 6. Metal Fabrication for Fittings
- 1.2.7 7. Main Construction
- 1.2.8 8. Sealing at Various Locations
- 1.2.9 9. Reinstallation of Equipment
- 1.2.10 10. Completion
- 1.3 About the Costs of Exterior Wall Covering Work
- 1.4 How to Choose a Siding Contractor
- 1.5 About Kakeru Koumuten
- 1.6 Customer Testimonials
- 1.7 Service Areas
- 1.8 Possible Subsidies and Grants in Chigasaki City, Kanagawa Prefecture
- 1.9 Leave your exterior wall cover work to the exterior renovation specialists at Kakeru Koumuten!
If you are looking for an exterior siding contractor in Kakeru Koumuten, Chigasaki City, Kanagawa Prefecture
Kakeru Koumuten is based in Yokohama and has handled many exterior cover projects!
The major benefits of exterior cover work are the following three points!
“Improved insulation”
“High durability with solid guarantees for peace of mind”
“A beautiful finish like a new building that cannot be achieved with exterior painting”
Exterior cover work is gaining attention year by year.
Here, we will also introduce case studies, benefits, points to note, and costs!
This will definitely be useful for customers considering exterior siding in Chigasaki City, so please take a look!
The most important thing to consider when thinking about exterior siding is “multiple estimates”!
Let’s obtain at least three estimates from exterior renovation companies that cover Chigasaki City!
Estimates and consultations are free!
Multiple estimates are very welcome!
What is the exterior cover method?
We will explain in detail the recommended points and precautions of the exterior cover method!
The exterior cover method is a construction method that overlays a new exterior over the existing exterior.
It is possible to overlay various types of exteriors such as ALC walls, ceramic siding, and mortar exteriors.
The exterior materials used in the exterior cover method are generally lightweight and durable metal siding.
While the costs are higher compared to exterior painting, it is a renovation method for exteriors that has various benefits and is gaining attention year by year.
Why is the exterior cover method so popular?
We would like to introduce the “five points” that have received positive feedback for Kakeru Koumuten’s exterior cover method!
Point 1 Super high durability!!
Metal siding offers significantly higher durability compared to exterior painting.
Galvalume steel, SGL steel, and aluminum are types of metal siding, and with aluminum, you can expect a durability of over 40 years!
Additionally, unlike ceramic siding or mortar exteriors, it does not crack or break, making its sturdiness one of its advantages!
If you use high-durability sealing materials, maintenance will be unnecessary for nearly 30 years!
Point 2 Improved Insulation!!
Cross-section of metal siding
The metal siding used in the exterior cover method comes with integrated insulation materials.
Moreover, by installing battens before the metal siding, a ventilation layer is created, significantly enhancing insulation!
This improvement in insulation is one of the major benefits of metal siding.
Point 3 Comprehensive Warranty for Peace of Mind!!
While many construction companies offer their own warranties for exterior painting, manufacturer warranties are generally not included.
Metal siding comes with solid manufacturer warranties, such as coating and perforation guarantees, providing a high level of reassurance for long-term exterior renovations!
Point 4 Improved Waterproofing!!
With the exterior material being double-layered, it effectively prevents rainwater intrusion, significantly enhancing waterproofing.
Applying waterproof paper before installation further increases waterproofing!
Point 5 Enhanced Aesthetic Appeal!!
Various designs such as wood grain and tile patterns
Metal siding allows for a finish that resembles a new build, which cannot be achieved with exterior painting.
There are various designs available, ranging from simple styles to tile and wood grain patterns.
You can choose from a variety of designs that match the atmosphere and your preferences of the building!
Major manufacturers include “Aiji Industrial“, “Keimyuu“, “Nichiwa“, and “Asahi Tostem“, each offering a wide range of types and designs of metal siding.
If you find a product you are interested in while looking at the catalog, you can also request cut samples!
What are the points to be aware of when doing exterior wall cover work with metal siding?
Next, I will explain the “three points to be aware of” when performing exterior wall cover work using metal siding!
Point 1 Few contractors can perform the work
There are significantly fewer contractors capable of performing the cover method with metal siding compared to exterior painting contractors.
Many inexperienced contractors exist, which can lead to frequent troubles.
Since there is often a wide variation in estimate costs, to ensure a satisfactory construction, if you are considering the exterior wall cover method with metal siding, be sure to obtain estimates from three or more companies and carefully review the details!
Point 2 Prone to dents and scratches
Metal siding can develop dents from impacts when objects hit it.
Additionally, being prone to scratches is one of its disadvantages.
If noticeable scratches occur and are a concern, it is possible to request repairs from a specialized repair contractor!
Point 3 Long construction period
Exterior wall cover work can be considered the most extensive among exterior renovations.
While exterior painting typically takes about 2 to 3 weeks, exterior wall cover work can often take nearly a month.
The long construction period can be a source of stress for residents, making it one of the disadvantages.
Examples of exterior wall cover work
| Construction Details |
| Exterior wall cover work |
| Completion Date |
| January 2025 |
| Inquiry Details |
|
I am considering a renovation of the exterior walls. I would like to use metal siding that is highly durable and comes with a solid warranty. |
| Proposal Details |
| We have proposed a roof overlay method using metal siding as per your request. You had several preferred types of metal siding, so we created separate estimates for each one! You entrusted us with the “Aiji Industry/SF-Gal Stage Shine” metal siding! |
| Price Range |
| 2,000,000 – 2,100,000 yen |
| Construction Period |
| Approximately 3 weeks |
| Existing Exterior Material/New Exterior Material |
|
Existing exterior: ALC |
1. Painting of Accessory Parts
2. Removal of Equipment
3. Substrate Adjustment
4. Waterproof Paper Installation (may not be necessary)
5. Installation of Battens
6. Metal Fabrication for Fittings
7. Main Construction
8. Sealing at Various Locations
9. Reinstallation of Equipment
10. Completion
About the Costs of Exterior Wall Covering Work
This is a table of estimated costs for exterior wall cover work.
It serves as a cost estimate for performing the exterior wall overlay (cover method) on a building with a floor area of 30 tsubo.
The cost of exterior wall cover work is determined by the calculation below.
Exterior wall area (㎡) × Siding unit price + Equipment removal and installation costs + Additional painting costs = Total amount
This will be the total.
| Material | Expected Durability (Years) | Cost Assuming a building area of 30 tsubo (150㎡) |
| Galvalume Steel | 30 to 35 | Including Tax Approximately 2,000,000 yen (Siding unit price 11,000 yen/m²~) |
| SGL Steel | 35 to 40 | Including Tax Approximately 2,200,000 yen (Siding unit price 12,500 yen/m²~) |
| Aluminum | 40 years or more | Including Tax Approximately 2,500,000 yen (Siding unit price 14,000 yen/m²~) |
The amount will vary depending on the number of attached parts and windows to be painted, as well as the equipment to be removed and reattached.
Please note that this is just a rough estimate, and detailed quotations are completely free, so feel free to contact us.
How to Choose a Siding Contractor
There are fewer contractors that handle exterior wall cover work compared to exterior painting contractors, so it may be difficult to find a reputable contractor, such as “where should I request?”
The most important thing in choosing a contractor and obtaining a quotation is to always obtain multiple estimates!
For this reason, when requesting exterior wall cover work, let’s confirm the following four points.
1. Check the contents and materials of the estimate
2. Confirm the existence of warranties and aftercare services
3. Obtain estimates from multiple contractors (at least three)
4. Check if the contractor performs the exterior wall cover work in-house
By confirming the above four points, you will be able to choose a trustworthy contractor.
1. Check the contents and materials of the estimate
When obtaining an estimate for exterior wall cover work, let’s check the following items!
・Is the proposed new siding material suitable for your needs?
Check if materials that meet your requirements, such as durability and insulation, are being proposed!
Since there are various types of metal siding, such as cost-effective siding and insulation-focused siding, confirm whether the proposed siding meets your original requirements!
・Is the proposed construction method appropriate?
When performing exterior wall cover work, it is necessary to create a ventilation layer between the existing exterior wall and the new exterior wall material using a method called “ventilation method.”
If you apply the siding directly without creating a ventilation layer, moisture cannot escape, leading to mold or corrosion, and may result in peeling or lifting of the exterior wall material.
Check whether the proposed construction is appropriate!
・Are the quantities and construction details described in detail?
If the estimate states something vague like “exterior wall cover work 1 set,” it will be difficult to understand the construction method and what the costs are for, making it hard to compare estimates.
Having detailed descriptions of the lengths of foundation water cuts and edge trims, along with unit prices and quantities, will provide reassurance and help prevent issues.
If there are items of concern that are not included in the estimate, confirm the reasons for their exclusion!
・Check the auxiliary materials to be used!
Check not only the main siding but also the types of detailed auxiliary materials such as “types of battens,” “siding fasteners,” and “types of waterproof paper“!
For example, siding fasteners are screws, and the overall cost will vary between iron and stainless steel.
While iron may appear cheaper at first glance, stainless steel is resistant to rust and is the recommended fastener.
2. Confirm the existence of warranties and aftercare services
When choosing a contractor for exterior wall cover work, be sure to check for warranties.
Exterior wall cover work is one of the more expensive renovations, so in addition to the manufacturer’s warranty, make sure to check if the company offers its own warranty!
If the contractor has a warranty period, they may provide free repairs within that period.
The warranty period varies by contractor and the specifics of the work, but a 5 to 10-year period is typical.
Additionally, some contractors offer after-sales service separate from the warranty, so be sure to check if the contractor you are considering has after-sales service.
Kakeru Koumuten Co., Ltd. always provides a warranty for exterior wall cover work.
We also offer after-maintenance services and send out annual DM, so if you wish, inspections can be conducted every year.
3. Obtain estimates from multiple contractors (at least 3 companies)
When requesting exterior wall cover work, be sure to obtain estimates from multiple contractors.
The cost of the same repair can vary between contractors, as can warranties and after-sales services.
Additionally, obtaining multiple estimates makes it easier to negotiate prices.
To request your desired repair contractor at a lower price, obtaining estimates from multiple contractors is essential.
When comparing estimates, consider not only the costs but also the details of the plans, materials, and auxiliary supplies!
4. Confirm whether the company conducts exterior wall cover work in-house
There are differences in costs between companies that handle in-house construction and those that outsource to external companies, which can also lead to miscommunication and other issues with external contractors.
Furthermore, if problems arise after construction, responses may be delayed, or there may be no dealings with the external construction company, leading to further complications.
Being able to respond immediately in case of issues is one of the reasons why companies that conduct in-house construction are recommended!
About Kakeru Koumuten
Kakeru Koumuten Co., Ltd. is a remodeling company based in Aoba-ku, Yokohama, Kanagawa Prefecture, specializing in roof work, exterior wall work, and scaffolding work with complete in-house construction.
Since we can assemble temporary scaffolding and perform exterior wall cover work in-house,
we can provide high-quality construction at reduced costs.
Company Introduction


● We store scaffolding materials!
Since we can install temporary scaffolding in-house, we can provide high-quality exterior renovations at a lower cost!


● We store materials and tools related to exterior work and painting!
We also store tools and materials for the exterior wall cover method!
Customer Testimonials
Service Areas
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.
Click here for inquiries to Kakeru Koumuten Co., Ltd.!
Chigasaki City Area List
Chigasaki City Akabane / Chigasaki City Akamatsu-cho / Chigasaki City Asahigaoka / Chigasaki City Amanuma / Chigasaki City Imajuku / Chigasaki City Enzo / Chigasaki City Kagawa / Chigasaki City Kozakura-cho / Chigasaki City Kowada / Chigasaki City Saiwaicho / Chigasaki City Shio midai / Chigasaki City Shimoterao / Chigasaki City Shimomachiya / Chigasaki City Jukkenzaka / Chigasaki City Matsubayashi / Chigasaki City Shirahama-cho / Chigasaki City Shineicho / Chigasaki City Serizawa / Chigasaki City Daikan-cho / Chigasaki City Takada / Chigasaki City Chigasaki / Chigasaki City Tsutsumi / Chigasaki City Tsuruga-dai / Chigasaki City Deguchi-cho / Chigasaki City Tokiwacho / Chigasaki City Tomoe / Chigasaki City Nakakaigan / Chigasaki City Nakajima / Chigasaki City Yukitani / Chigasaki City Minami-ko / Chigasaki City Nishikubo / Chigasaki City Hagioka / Chigasaki City Hama-suga / Chigasaki City Hama-take / Chigasaki City Hama-no-sato / Chigasaki City Hama-mihira / Chigasaki City Higashikaigan Minami / Chigasaki City Higashikaigan Kita / Chigasaki City Hishinuma / Chigasaki City Hishinuma Kaigan / Chigasaki City Hibari-ga-oka / Chigasaki City Fujimi-cho / Chigasaki City Heitaishin-cho / Chigasaki City Heiwa-cho / Chigasaki City Honjuku-cho / Chigasaki City Honmura / Chigasaki City Matsu-o / Chigasaki City Matsukaze-dai / Chigasaki City Matsugaoka / Chigasaki City Matsunami / Chigasaki City Mizuki / Chigasaki City Misumi-cho / Chigasaki City Midoriga-hama / Chigasaki City Murota / Chigasaki City Motomachi / Chigasaki City Yanagishima / Chigasaki City Yanagishima Kaigan / Chigasaki City Yahata / Chigasaki City Wakamatsu-cho
Possible Subsidies and Grants in Chigasaki City, Kanagawa Prefecture
The following subsidies may be available in Chigasaki City, Kanagawa Prefecture.
Overview of Chigasaki City “Long-term Excellent Housing” System
Benefits of Certification (Tax Incentives)
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Newly built houses certified as long-term excellent housing will have their property tax reduced.
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The reduction is such that “property tax is reduced by half,” with general residences for 5 years and fire-resistant houses of 3 stories or more for 7 years.
Chigasaki City Subsidy System (for Renovations, Earthquake Resistance, etc.)
Housing Energy Efficiency Promotion Campaign (National)
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New Construction (Child-rearing and Young Households)
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Long-term excellent housing: 800,000 yen per unit
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GX-oriented housing: 1,600,000 yen per unit
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ZEH standard housing: 400,000 yen per unit
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Renovation
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Insulation renovation + eco-friendly equipment and other three types of work: up to 600,000 yen
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Two types of work: up to 400,000 yen
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Long-term Excellent Housing Renovation Promotion Project (National)
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33% of the construction costs for renovations will be subsidized, with a maximum of 2,100,000 yen.
Subsidies for Earthquake Diagnosis, Reinforcement Work, and Demolition
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Earthquake Diagnosis Subsidy
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Non-taxable households for the elderly: ¥99,000 subsidy (approximately ¥9,900 out-of-pocket)
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Other households: ¥73,000 subsidy (approximately ¥35,900 out-of-pocket)
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Seismic reinforcement construction subsidy
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Regular households: 1/2 of construction costs, up to ¥500,000
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Households with elderly members: additional amounts available, up to ¥700,000
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Subsidy for the removal of wooden houses
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For the removal of old wooden houses that meet certain conditions, a subsidy of the lower of the following amounts:
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Floor area × ¥20,000 divided by 2
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1/2 of the construction estimate
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Maximum of ¥360,000 (¥450,000 in specific cases)
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Reduction of fixed property tax due to insulation renovation of buildings
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Houses that undergo thermal loss prevention renovations can receive reduction measures for fixed property tax.
Summary Table: List of Support Programs Available in Chigasaki City
| Demolition of old wooden houses | Up to 360,000 yen (up to 450,000 yen under certain conditions) | |
| Property tax reduction through insulation renovation | Renovated houses preventing heat loss | Property tax is reduced |
For more details, please check theofficial site of Chigasaki City, Kanagawa Prefecture.
Leave your exterior wall cover work to the exterior renovation specialists at Kakeru Koumuten!
This concludes the information on the wall cover method.
Exterior renovations that significantly improve insulation and provide a stylish look like new construction are limited to exterior wall siding work.
While the cost is higher compared to exterior painting, it offers various benefits and is a recommended exterior renovation.
Importantly, if you are considering exterior wall cover work, be sure to obtain estimates from at least three different companies!
Our company specializes in exterior renovations, so if you have any concerns regarding roofs, rain gutters, or exterior walls, please consult with Kakeru Koumuten Co., Ltd. in Yokohama!
We carry out everything from temporary scaffolding work to roof construction and exterior wall renovation completely in-house. We are confident that we excel in cost, quality, and efficiency compared to other companies in exterior work!
We welcome competitive estimates with confidence!
You will be glad you chose us! We take every request seriously to ensure you feel that way.
Estimates and inspections are free!
If our construction plan is inferior to other companies, please feel free to decline!
Rest assured, we do not charge any cancellation fees or travel expenses!
We look forward to your inquiries. Thank you very much.
・Trust Kakeru Koumuten for exterior renovations in Chigasaki, Kanagawa!
・Kakeru Koumuten is your go-to for roof renovations in Chigasaki, Kanagawa!
・Count on Kakeru Koumuten for rain gutter repairs and cleaning in Chigasaki, Kanagawa!
・Kakeru Koumuten is your trusted partner for solar panel installation in Chigasaki, Kanagawa!
・Rely on Kakeru Koumuten for exterior wall cleaning in Chigasaki, Kanagawa!
・Kakeru Koumuten is your expert for exterior painting in Chigasaki, Kanagawa!
・Trust Kakeru Koumuten for waterproofing work in Chigasaki, Kanagawa!
・Kakeru Koumuten is here for your leak repairs in Chigasaki, Kanagawa!
・Aftercare services by Kakeru Koumuten Co., Ltd.
・Kakeru Koumuten Co., Ltd. construction menu and price list
・Kakeru Koumuten Co., Ltd. staff blog and announcements
We welcome consultations via LINE as well◎
AAA is a young company with an average age in the early 20s, but our technology is second to none.
One of our greatest strengths is that we can do all of our own scaffolding, roofing, and painting work. In this industry, where work is generally divided, we are able to provide a complete set of services, which saves time and effort in management and reduces costs. Above all, if there is any trouble, we will come to you right away!
We can confidently declare this. We are the youngest and most friendly renovator in Kanagawa!







