If you are looking for an exterior siding contractor in Fuchu City, Tokyo, look no further than Kakeru Koumuten Co., Ltd.
Kakeru Koumuten Co., Ltd. is based in Tokyo and has handled numerous 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”
“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 helpful for customers considering exterior siding in Fuchu City, TokyoPlease take a look!
The most important thing to consider when looking into exterior siding is “comparative estimates”!
Let’s obtain at least three comparative estimates from exterior renovation companies that serve Fuchu City!
Estimates and consultations are free!
Comparative 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 process that overlays a new exterior on top of the existing exterior.
It can be applied to various types of exteriors, such as ALC walls, ceramic siding, and mortar exteriors.
The materials used for the exterior cover method are generally lightweight and durable metal sidings.
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 earned Kakeru Koumuten Co., Ltd. high praise for its exterior cover method!
Point 1 Super high durability!!
Metal siding offers significantly higher durability compared to exterior painting.
Made of Galvalume steel, SGL steel, and aluminum, there are various 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 material.
Moreover, by installing furring strips before the metal siding installation to create a ventilation layer, the insulation performance is significantly enhanced!
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 performance!
Point 5 Improved Aesthetic Appeal!!
Various designs such as wood grain and tile patterns
Metal siding allows for a finish that resembles a new construction, which cannot be achieved with exterior painting.
There are various designs available, ranging from simple 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 various types and designs of metal siding.
If you find a product of interest in the catalog, you can also request cut samples!
What to be cautious about when performing exterior wall cover work with metal siding?
Next, I will explain the “three points of caution” when using metal siding for exterior wall cover methods!
Caution 1 Few contractors can perform the installation
There are significantly fewer contractors capable of performing the cover method with metal siding compared to exterior painting contractors.
Many inexperienced contractors exist, leading to a higher occurrence of troubles.
Since there is often a variation in estimated costs, to ensure a satisfactory construction,
if you are considering the exterior wall cover method with metal siding, make sure to obtain estimates from three or more companies and carefully review the details!
Caution 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 concerning, you can request repairs from a specialized repair contractor!
Caution 3 Long construction period
The exterior wall cover work is arguably the most extensive among exterior renovations.
While exterior painting typically takes about 2 to 3 weeks, the 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 high-durability metal siding with a solid warranty. |
| Proposal Details |
| We have proposed a roof overlay method using metal siding as per your request. Since you had several preferred types of metal siding, we have prepared separate estimates for each! You have 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 Auxiliary Parts
2. Removal of Equipment
3. Substrate Adjustment
4. Waterproof Paper Installation (may not be necessary)
5. Installation of Battens
6. Metal Work Processing
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 the exterior wall cover work will be determined by the following calculation:
Exterior wall area in square meters × 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/㎡~) |
| SGL Steel | 35 to 40 | Including Tax Approximately 2,200,000 yen (Siding unit price 12,500 yen/㎡~) |
| Aluminum | 40 or more | Including Tax Approximately 2,500,000 yen (Siding unit price 14,000 yen/㎡~) |
The amount will vary depending on the number of attached parts to be painted, the number of windows, and the equipment to be removed or installed.
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, making it challenging to find reliable ones, such as “where should I request?”
The most important thing when choosing a contractor or obtaining a quote is to always obtain multiple quotes!
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 presence of guarantees and aftercare services
3. Obtain multiple quotes from several contractors (at least three companies)
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 aligns with 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 wall and the new siding material using a method called “ventilation method.”
If you apply it directly without a ventilation layer, moisture cannot escape, leading to mold or corrosion, and may result in peeling or lifting of the siding material.
Confirm whether the proposed work content 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 becomes difficult to understand the construction method and what the costs are for.
Having clear unit prices and quantities for items like base water drainage and edge trim will provide peace of mind and help prevent issues.
If there are items of concern not included in the estimate, check the reason 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 “type of furring strips,” “siding fasteners,” and “type of waterproof paper“!
For example, siding fasteners are screws, and the overall cost will vary between iron and stainless steel.
While iron may seem cheaper at first glance, stainless steel is rust-resistant and is the recommended fastener.
2. Confirm the presence of guarantees 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 types of exterior renovations, so in addition to the manufacturer’s warranty, make sure to confirm whether 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 services separate from warranties, 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 conduct after-maintenance and send out annual direct mail, so if you wish, inspections can be done every year.
3. Obtain estimates from multiple contractors (at least 3 companies)
When requesting exterior wall cover work, be sure to get estimates from multiple contractors.
The cost of the same repair can vary between contractors, as can the warranties and after-sales services offered.
Additionally, obtaining multiple estimates makes it easier to negotiate prices.
To request your desired repair contractor at the best possible 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 performs exterior wall cover work in-house
There are cost differences between companies that handle the work in-house and those that outsource it to external companies, which can also lead to miscommunication and other issues with external contractors.
Moreover, if problems arise after construction, responses may be delayed, or the company may not have dealings with the external contractor, leading to further complications.
Being able to respond quickly when issues arise is one of the reasons why companies that perform the work in-house are recommended!
About Kakeru Koumuten Co., Ltd.
Kakeru Koumuten Co., Ltd. specializes in roofing, exterior wall work, and scaffolding with complete in-house construction for exterior renovations.
By assembling temporary scaffolding and performing exterior wall cover work in-house,
we can keep costs down while ensuring high-quality construction.
Company Introduction


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


● We store materials and tools related to exterior construction and painting work!
We also store tools and materials for the roof overlay (cover method)!
Customer Reviews
Service Areas
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo Metropolis.
Click here for inquiries to Kakeru Koumuten Co., Ltd.!
Fuchu City Area List
Asahi-cho, Fuchu City / Oshitate-cho, Fuchu City / Katamachi, Fuchu City / Kitayama-cho, Fuchu City / Kotobuki-cho, Fuchu City / Koyanagi-cho, Fuchu City / Koremasa, Fuchu City / Saiwai-cho, Fuchu City / Sakae-cho, Fuchu City / Shimizu-ga-oka, Fuchu City / Shiraito-dai, Fuchu City / Shinmachi, Fuchu City / Sumiyoshi-cho, Fuchu City / Sengen-cho, Fuchu City / Tama-cho, Fuchu City / Tenjin-cho, Fuchu City / Higashishiba-cho, Fuchu City / Nishihara-cho, Fuchu City / Nishifu-cho, Fuchu City / Hikkou-cho, Fuchu City / Nisshin-cho, Fuchu City / Yahata-cho, Fuchu City / Harumi-cho, Fuchu City / Hiyoshi-cho, Fuchu City / Fuchu-cho, Fuchu City / Bunmei-cho, Fuchu City / Honjuku-cho, Fuchu City / Honmachi, Fuchu City / Midori-cho, Fuchu City / Minami-cho, Fuchu City / Miyanishi-cho, Fuchu City / Miyamachi, Fuchu City / Biko-cho, Fuchu City / Musashidai, Fuchu City / Momiji-oka, Fuchu City / Yazaki-cho, Fuchu City / Yotsuya, Fuchu City / Wakamatsu-cho, Fuchu City
Possible Subsidies and Grants in Fuchu City, Tokyo
The following subsidies may be available in Fuchu City, Tokyo.
1. Long-term Excellent Housing System and Benefits (Tokyo)
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Overview of the Long-term Excellent Housing System
Housing that meets standards for durability, living environment, disaster response, unit area, and maintenance plans is certified as a high-performance residence that can be lived in for a long time. -
Main Benefits of Certification
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Tax incentives such as income tax and real estate acquisition tax
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There is a possibility of being eligible for various subsidies and reduced interest rates on housing loans.
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Information on Subsidy Programs
You can utilize the national subsidy programs such as the “Child-Rearing Green Housing Support Project” and the “Long-Term Excellent Housing Renovation Promotion Project.”
2. Comparison with Tokyo’s “Tokyo Zero Emission Housing” Program
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What is Tokyo Zero Emission Housing?
A program where the Tokyo Metropolitan Government provides subsidies for the construction of new homes with high energy-saving performance. It also includes subsidies for the installation of solar panels and storage batteries, as well as full exemption from real estate acquisition tax. -
Subsidy Amount (Fiscal Year 2025)
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Level A: Up to 2.4 million yen
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Level B: 1.6 million yen
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Level C: 400,000 yen
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Tax Benefits
Houses that meet certain conditions may be fully exempt from real estate acquisition tax.
3. Comparison of Major Subsidies
Subsidy Programs Related to Tokyo
| Program Name | Details | Subsidy Amounts, etc. |
|---|---|---|
| Tokyo Zero Emission Housing | Subsidy for new construction based on energy-saving performance | Level A: 2.4 million yen / Level B: 1.6 million yen / Level C: 400,000 yen |
| Existing Housing Energy-Saving Diagnosis and Design Support | Subsidy for energy-saving design and diagnosis of current homes | Check subsidy rates and maximum amounts in the application guidelines (Application period: May 22, 2025 – February 16, 2026) |
| Individual Housing Interest Subsidy | Subsidy for loan interest when rebuilding fire-resistant homes in densely wooded areas | Reduce housing loan interest by 1% (for 10 years) |
Subsidy Programs by the National and Local Governments
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Child-Rearing Green Housing Support Project
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Eligible: GX-oriented housing, Long-term excellent housing, ZEH standard housing
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Subsidy Amount (Estimated for FY 2025):
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GX Type: 1,600,000 yen / unit
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Long-term Excellent: 800,000 yen / unit
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ZEH Standard: 400,000 yen / unit
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* Additional costs apply for demolition of old houses (e.g., Long-term Excellent 1,000,000 yen)
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ZEH Support Project (National)
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Subsidy Amount:
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ZEH: 550,000 yen / unit
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ZEH+: 900,000 yen / unit
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Additional subsidies for storage batteries and more
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Long-term Excellent Housing Reform Promotion Project (for Existing Homes)
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Subsidy Amount:
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Evaluation Standard Type: Within 1/3 of the renovation cost (maximum 800,000 yen)
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Certified Long-term Excellent Housing Type: Similarly within 1/3 (maximum 1,600,000 yen)
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Additional 500,000 yen for young families and three-generation households
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4. Which systems can be combined? Tips for utilization
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Combination Utilization
Programs like “Tokyo Zero Emission Housing” and “Child-Rearing Green Housing” can be used together depending on the conditions.
On the other hand, some specific programs cannot be combined, so it is important to check the conditions for each program. -
Benefits of Certification
Long-term excellent housing certification offers benefits in various areas such as tax incentives, subsidy programs, and loan advantages, making the value of obtaining this certification very high. -
For Renovations and Existing Homes
By utilizing the “Long-term Excellent Housing Renovation Subsidy” and “Energy Saving Diagnosis and Design Support,” you can improve performance while also receiving subsidies.
Summary
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Long-term Excellent Housing offers a wide range of benefits such as tax incentives, subsidies, and loan advantages when certified.
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Tokyo’s “Tokyo Zero Emission Housing” Program provides significant subsidies when aiming for energy-efficient high-performance housing in new constructions.
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Utilizing National and Other Programs can greatly reduce the financial burden of building or renovating a home.
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Combination Conditions Vary by Program, so it is important to check the details and whether combinations are allowed at the time of application.
For detailed conditions and procedures, please check this website.
Leave your exterior wall cover work to Kakeru Koumuten Co., Ltd., the exterior renovation specialists!
This concludes the information about the exterior wall overlay method.
For significant improvements in insulation and a stylish look akin to new construction, the exterior remodeling is limited to wall siding work.
While the cost is higher compared to exterior painting, there are various benefits, making it a recommended exterior remodeling option.
Importantly, if you are considering exterior wall overlay work, be sure to obtain estimates from at least three companies!
Our company specializes in exterior remodeling, so if you have any concerns regarding roofs, rain gutters, or exterior walls, please consult Kakeru Koumuten!
We carry out everything from temporary scaffolding work to roof work and exterior remodeling entirely in-house. We are confident that our costs, quality, and organization are unmatched compared to other companies in exterior work!
We welcome estimates from other companies as we are confident in our services!
You will be glad you chose us! We take every request seriously to ensure your satisfaction.
Estimates and inspections are free!
If our construction plan is inferior to others, 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.
・For exterior renovations in Fuchu, Tokyo, trust Kakeru Koumuten Co., Ltd.!
・For roof renovations in Fuchu, Tokyo, trust Kakeru Koumuten Co., Ltd.!
・For exterior wall painting in Fuchu, Tokyo, trust Kakeru Koumuten Co., Ltd.!
・For rain gutter repair and cleaning in Fuchu, Tokyo, trust Kakeru Koumuten Co., Ltd.!
・For solar panel installation in Fuchu, Tokyo, trust Kakeru Koumuten Co., Ltd.!
・For exterior wall cleaning in Fuchu, Tokyo, trust Kakeru Koumuten Co., Ltd.!
・For waterproofing work in Fuchu, Tokyo, trust Kakeru Koumuten Co., Ltd.!
・For leak repairs in Fuchu, Tokyo, trust Kakeru Koumuten Co., Ltd.!
・After maintenance by Kakeru Koumuten Co., Ltd.
・Construction menu and price list of Kakeru Koumuten Co., Ltd.
・Staff blog and announcements of Kakeru Koumuten Co., Ltd.
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!




