目次
- 1 If you are looking for an exterior siding contractor in Kakeru Koumuten Co., Ltd. in Kunitachi City, Tokyo
- 1.1 What is the exterior cover method?
- 1.2 Examples of exterior wall cover work
- 1.2.1 1. Painting of Auxiliary 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 Work Processing
- 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 Co., Ltd.
- 1.6 Customer Testimonials
- 1.7 Service Areas
- 1.8 Possible Subsidies and Grants in Kunitachi City, Tokyo
- 1.8.1 Main Subsidy and Grant Programs in Kunitachi City (Housing and Disaster Prevention)
- 1.8.1.1 1. Earthquake Resistance Diagnosis and Renovation Subsidy for Wooden Houses
- 1.8.1.2 2. Housing Energy Efficiency Subsidy Program
- 1.8.1.3 3. Independent Living Housing Renovation Grant Program (Barrier-Free Related)
- 1.8.1.4 4. Subsidy for Smart Energy Equipment for Homes
- 1.8.1.5 5. Tokyo Existing Housing Energy Efficiency Renovation Promotion Project
- 1.8.1.6 6. Tokyo Metropolitan Thermal Insulation and Solar Power Promotion Project
- 1.8.1.7 7. Property Tax Reduction for Earthquake Resistance Renovations
- 1.8.1.8 8. Various Disaster Prevention Support Projects
- 1.8.1 Main Subsidy and Grant Programs in Kunitachi City (Housing and Disaster Prevention)
- 1.9 Leave your exterior wall cover work to Kakeru Koumuten, the exterior renovation specialists!
If you are looking for an exterior siding contractor in Kakeru Koumuten Co., Ltd. in Kunitachi City, Tokyo
Kakeru Koumuten Co., Ltd. is based in Tokyo and has handled many exterior cover projects!
The major benefits of exterior cover projects 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 projects are gaining attention year by year.
Here, we will also introduce case studies, benefits, precautions, and costs!
This will definitely be useful for customers considering exterior siding in Kunitachi City, TokyoPlease take a look!
The most important thing to consider when thinking about exterior siding is “multiple estimates”!
Let’s get at least three estimates from exterior renovation companies that cover Kunitachi 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 process that overlays a new exterior over the existing exterior.
It can be applied to 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 method of exterior renovation that has various benefits and is gaining attention year by year.
Why is the exterior cover method popular?
Here are the “5 points” that make Kakeru Koumuten Co., Ltd.’s exterior cover method well-received!
Point 1 Super high durability!!
Metal siding offers an overwhelmingly high expected durability compared to exterior wall painting.
Made of Galvalume steel, SGL steel, and aluminum, there are various types of metal siding, but 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 wall cover method comes with integrated insulation material.
Moreover, by installing battens 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 wall painting, manufacturer warranties are generally not included.
Metal siding comes with solid manufacturer warranties, such as coating and perforation guarantees, making it a reassuring choice 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 Aesthetics!!
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, from simple styles to tile and wood grain patterns.
You can choose from a variety of designs to match the atmosphere of your building and your preferences!
Major manufacturers include “Aiji Industrial“, “Keimyuu“, “Nichiwa“, and “Asahi Tostem“, each offering a range of 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 aware of when doing exterior wall cover work with metal siding?
Next, I will explain the “three points to be cautious of” when using metal siding for exterior wall cover methods!
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, leading to a higher likelihood of troubles.
Since there can be a lot of variation in estimate costs, to ensure a satisfactory project, if you are considering the exterior wall cover method with metal siding, be sure to get 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 if objects hit it.
Additionally, being prone to scratches is one of its disadvantages.
If noticeable scratches occur and are a concern, you can request repairs from a specialized repair contractor!
Point 3 Long construction period
Exterior wall cover work is arguably the most extensive type of exterior renovation.
While exterior painting typically takes about 2 to 3 weeks, exterior wall cover work can often take close to 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 prepared separate estimates for each! You entrusted us with the “Aiji Industry/SF-Gal Stage Shine” metal siding! |
| Price Range |
| 2,000,000 to 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 guideline for the cost of performing the exterior wall cover method for a building area of 30 tsubo.
The cost of the exterior wall cover work will be estimated based on the following calculation.
Exterior wall area (㎡) × Siding unit price + Equipment removal and installation cost + Additional painting cost = 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 years 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, so it may be difficult to find a reliable contractor, 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 existence of guarantees and aftercare
3. Obtain multiple quotes from different contractors (at least three companies)
4. Confirm whether 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 whether 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, make sure to confirm whether the proposed siding meets your original requirements!
・Is the proposed installation 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 it directly without creating a ventilation layer, moisture cannot escape, which can lead to mold or corrosion, and may cause peeling or lifting of the exterior wall material.
Check whether the proposed work is appropriate!
・Are the quantities and construction details described in detail?
If the content is vague, such as “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 base water cuts and edge trims, along with unit prices and quantities, will provide peace of mind and help prevent issues.
If there are items of concern that are not included in the estimate, check the reason for their exclusion!
・Check the auxiliary materials to be used!
Check not only the siding itself but also the types of detailed auxiliary materials, such as “types of battens,” “siding fasteners,” and “types of waterproof paper“!
For example, the 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 guarantees and aftercare
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 for any in-house warranties as well!
If the contractor offers 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 range 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 services.
Kakeru Koumuten Co., Ltd. always includes a warranty with exterior wall cover work.
We also provide after-maintenance services and send out annual direct mail, so if you wish, annual inspections are possible.
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 costs for the same repair can vary between contractors, as can the warranties and after-sales services.
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
Companies that handle their own construction versus those that outsource to external companies will have different costs, and there is a higher likelihood of miscommunication and issues arising with external contractors.
Furthermore, if problems occur after construction, responses may be delayed, or there may be no dealings with the external construction company, leading to potential troubles.
Being able to respond immediately when something goes wrong is one of the reasons why companies that perform their own construction are recommended!
About Kakeru Koumuten Co., Ltd.
Kakeru Koumuten Co., Ltd. specializes in roofing, exterior wall work, and scaffolding with completely 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 Testimonials
Service Areas
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo Metropolis.
Click here for inquiries to Kakeru Koumuten Co., Ltd.!
List of Areas in Kunitachi City, Tokyo
Aoyagi, Kunitachi City / Ishida, Kunitachi City / Izumi, Kunitachi City / Kita, Kunitachi City / Naka, Kunitachi City / Nishi, Kunitachi City / Higashi, Kunitachi City / Fujimidai, Kunitachi City / Yagawa, Kunitachi City / Yahō, Kunitachi City
Possible Subsidies and Grants in Kunitachi City, Tokyo
The following subsidies may be available in Kunitachi City, Tokyo.
Main Subsidy and Grant Programs in Kunitachi City (Housing and Disaster Prevention)
1. Earthquake Resistance Diagnosis and Renovation Subsidy for Wooden Houses
-
Earthquake Resistance Diagnosis Subsidy: 1/2 of the cost of the earthquake resistance diagnosis for eligible houses (up to 50,000 yen).
-
Earthquake Renovation Subsidy: 1/3 of the cost of earthquake reinforcement work (up to 800,000 yen). Applicable to houses identified as needing renovation in the diagnosis.
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Tax Incentives: If the seismic retrofitting raises the building’s rating to 1.0 or higher, there may be benefits for income tax and property tax.
2. Housing Energy Efficiency Subsidy Program
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Eligible Works: Insulation retrofitting of windows, heat-reflective painting of roofs and rooftops, LED upgrades in common areas, etc.
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Subsidy Amount: 20% of construction costs (up to 200,000 yen).
3. Independent Living Housing Renovation Grant Program (Barrier-Free Related)
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Eligible Persons: Individuals aged 65 and over who do not qualify for long-term care insurance, etc.
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Subsidy Amount: 10% to 30% of construction costs to be borne by the individual (up to 379,000 yen). The burden ratio varies based on income.
4. Subsidy for Smart Energy Equipment for Homes
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Eligible Equipment: Solar power generation, EneFarm (fuel cells), storage batteries, solar thermal utilization systems, etc.
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Subsidy Amount: A fixed amount based on the installed equipment (up to 125,000 yen). Up to two applications can be made per household.
5. Tokyo Existing Housing Energy Efficiency Renovation Promotion Project
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Eligible Works: Installation of insulation materials, high insulation for bathtubs, introduction of LED lighting, etc.
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Subsidy Amount: 2/3 subsidy for energy efficiency diagnosis, 2/5 to 4/5 subsidy for design (up to 360,000 yen).
6. Tokyo Metropolitan Thermal Insulation and Solar Power Promotion Project
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Eligible Works: Installation of solar power generation, thermal insulation door renovations, storage batteries, V2H, etc.
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Subsidy Amount: 3/5 to full amount of construction costs (up to 1.8 million yen).
7. Property Tax Reduction for Earthquake Resistance Renovations
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Details: For houses built before January 1, 1982, if earthquake resistance renovations are completed and applied for within three months, the property tax for the following year will be reduced.
8. Various Disaster Prevention Support Projects
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List of Contents:
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Subsidy for the establishment of hedges
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Provision and installation of anti-furniture tipping devices (for tax-exempt households, elderly, and disabled households)
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Subsidy for purchasing residential fire extinguishers (1/2 of the cost, up to 10,000 yen)
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Subsidy for purchasing temporary tents (1/2 of the cost, up to 20,000 yen)
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Subsidy for purchasing and installing smoke alarms (1/2 of the cost, up to 6,000 yen)
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Support for the removal of block walls, installation of seismic breakers, and purchase of portable toilets is also available.
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For more details, please check theofficial website of Kunitachi City, Tokyo.
Leave your exterior wall cover work to Kakeru Koumuten, the exterior renovation specialists!
This concludes the information about the wall cover method.
For significant improvements in insulation and a stylish look akin to new construction, the exterior renovation is limited to 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 wall cover work, be sure to obtain quotes from at least three companies!
Our company specializes in exterior renovations, 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 renovation completely in-house. We are confident that our costs, quality, and efficiency in exterior work are unmatched compared to other companies!
We welcome competitive quotes with confidence!
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!
We do not charge any cancellation fees or travel expenses, so rest assured!
We look forward to your inquiries. Thank you very much.
・Trust Kakeru Koumuten Co., Ltd. for exterior renovations in Kunitachi, Tokyo!
・Kunitachi, TokyoTrust Kakeru Koumuten Co., Ltd. for roof renovations in Kunitachi, Tokyo!
・Trust Kakeru Koumuten Co., Ltd. for rain gutter repairs and cleaning in Kunitachi, Tokyo!
・Trust Kakeru Koumuten Co., Ltd. for solar panel installation in Kunitachi, Tokyo!
・Trust Kakeru Koumuten Co., Ltd. for exterior wall cleaning in Kunitachi, Tokyo!
・Trust Kakeru Koumuten Co., Ltd. for exterior wall painting in Kunitachi, Tokyo!
・Trust Kakeru Koumuten Co., Ltd. for waterproofing work in Kunitachi, Tokyo!
・Trust Kakeru Koumuten Co., Ltd. for leak repairs in Kunitachi, Tokyo!
・After maintenance by Kakeru Koumuten Co., Ltd.
・Construction menu and price list by Kakeru Koumuten Co., Ltd.
・Staff blog and announcements from 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!







