目次
- 1 If you are looking for an exterior wall siding contractor in Tama City, Tokyo, come to Kakeru Koumuten Co., Ltd.
- 1.1 What is the Exterior Wall 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. Fabrication of Fittings and Sheet Metal
- 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 Reviews
- 1.7 Service Areas
- 1.8 PossibleSubsidies and Grants in Tama City, Tokyo
- 1.9 Leave your exterior wall cover work to Kakeru Koumuten, the exterior renovation specialists!
If you are looking for an exterior wall siding contractor in Tama City, Tokyo, come to Kakeru Koumuten Co., Ltd.
Kakeru Koumuten Co., Ltd. is based in Tokyo and has handled many exterior wall cover projects!
The major benefits of exterior wall cover work are the following three points!
“Improved Insulation”
“High Durability with Reliable Guarantees for Peace of Mind”
“Beautiful Finish Like a New Build That Cannot Be Achieved with Exterior Painting”
Exterior wall cover work is gaining attention year by year.
Here, we will also introduce case studies, benefits, precautions, and costs!
This will definitely be helpful for customers considering exterior wall siding in Tama City, TokyoPlease take a look!
The most important thing when considering exterior wall siding is “Comparative Estimates”!
Let’s obtain at least three comparative estimates from exterior remodeling companies that serve Tama City!
Estimates and consultations are free!
Comparative estimates are very welcome!
What is the Exterior Wall Cover Method?
We will explain in detail the recommended points and precautions of the exterior wall cover method!
The exterior wall cover method is a construction process that overlays a new exterior wall on top of the existing one.
It can be applied to various types of walls, including ALC walls, ceramic siding, and mortar walls.
The materials used for the exterior wall cover method are generally lightweight and durable metal siding.
While the costs are higher compared to exterior painting, it is a method of exterior remodeling that has various benefits and is gaining attention year by year.
Why is the Exterior Wall Cover Method Popular?
Here are the “5 Points” that explain why Kakeru Koumuten’s exterior wall cover method is well-received!
Point 1 Super High Durability!!
Metal siding offers an overwhelmingly higher 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 has integrated insulation material.
Moreover, by installing battens before the metal siding installation to create a ventilation layer, the insulation performance is significantly improved!
This enhancement 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, providing a high level of reassurance for long-term exterior renovations!
Point 4 Improved Waterproofing!!
With the exterior wall material being double-layered, it significantly enhances waterproofing by preventing rainwater intrusion.
Applying waterproof paper before installation further increases waterproofing effectiveness!
Point 5 Improved Aesthetics!!
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 to match the atmosphere of your building and your personal preferences!
Major manufacturers include “Aiji Industrial“, “Keimyuu“, “Nichiwa“, and “Asahi Tostem“, each offering a variety of types and designs of metal siding.
If you find a product of interest in the catalog, you can also request cut samples!
What are the points to be aware of when performing exterior wall cover work with metal siding?
Next, we will explain the “three points to note” when using metal siding for exterior wall cover work!
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 occurrence of troubles.
Since there is often a wide variation in estimated costs, to ensure a satisfactory project,
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!
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, you can request repairs from a specialized repair contractor!
Point 3 Long construction period
Exterior wall cover work is arguably the most extensive renovation among exterior remodeling projects.
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 metal sidings, we have created separate estimates for each one! You entrusted us with the “Aijii 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. Fabrication of Fittings and Sheet Metal
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 is an estimate for the cost of performing the exterior wall 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 (㎡) × Siding unit price + Equipment removal and installation cost + 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 years | Including Tax Approximately 2,000,000 yen (Siding unit price 11,000 yen/㎡~) |
| SGL Steel | 35 to 40 years | 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 guideline amount, and detailed estimates are completely free, so feel free to contact us.
How to Choose a Siding Contractor
There are fewer contractors who handle exterior wall cover work compared to exterior painting contractors, so it may be challenging to find a reliable contractor, such as “where should I request?”
The most important thing in choosing a contractor and obtaining estimates is to always obtain multiple estimates!
Therefore, 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 warranties and aftercare
3. Obtain multiple estimates from different 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 requirements?
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, make sure the proposed siding aligns with your original requirements!
・Is it proposed with the appropriate construction method?
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 it may cause peeling or lifting of the siding material.
Check whether the proposed work is appropriate!
・Are the quantities and construction details specified 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 foundation 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, confirm the reasons for their exclusion!
・Check the auxiliary materials to be used!
Check not only the siding itself but also the types of 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 resistant to rust and is a recommended fastener.
2. Confirm the presence of warranties and aftercare
When choosing a contractor for exterior wall covering work, be sure to check for warranties.
Exterior wall covering work is one of the more expensive renovations, so in addition to checking for manufacturer warranties, also 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 common.
Additionally, some contractors offer after-sales service 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 covering work.
We also conduct after-maintenance and send out annual DM, so if you wish, inspections can be done every year.
3. Obtain estimates from multiple contractors (at least 3 companies)
When requesting exterior wall covering 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 preferred repair contractor at a lower cost, 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 materials!
4. Confirm whether the company performs exterior wall covering work in-house
There are differences in costs between companies that handle the work in-house and those that outsource it, and there is also a higher likelihood of miscommunication and issues arising with external contractors.
Moreover, if problems occur after construction, responses may be delayed, or there may be no dealings with the external contractor, leading to further complications.
Being able to respond immediately when issues arise is one reason 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 work with completely in-house construction for exterior renovations.
By assembling temporary scaffolding and performing exterior wall covering work in-house,
we can keep costs down while ensuring high-quality construction.
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 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 all of Tokyo.
Click here for inquiries to Kakeru Koumuten Co., Ltd.!
List of Areas in Tama City, Tokyo
Ata, Tama City / Ichinomiya, Tama City / Ochiai, Tama City / Otsukawa, Tama City / Kaito, Tama City / Karakita, Tama City / Koida, Tama City / Sakuragaoka, Tama City / Sannōshita, Tama City / Suwa, Tama City / Sekido, Tama City / Tsurumaki, Tama City / Toyooka, Tama City / Nakazawa, Tama City / Nagayama, Tama City / Higashitera, Tama City / Seigaoka, Tama City / Babikizawa, Tama City / Minamino, Tama City / Hyakugusa, Tama City / Renkōji, Tama City / Wada, Tama City
PossibleSubsidies and Grants in Tama City, Tokyo
The following subsidies may be available in Tama City, Tokyo.
Summary of Main Subsidy and Grant Programs for Rental Housing in Tokyo
1. Excellent Private Rental Housing (Interest Subsidy for Construction Funds)
-
Program Details: This program provides loans and interest subsidies from Tokyo to landowners and others constructing “Excellent Private Rental Housing.” This promotes the supply of high-quality rental housing.
-
Eligibility: Residential properties located in Tokyo that meet criteria regarding area, structure, and number of units.
2. Excellent Rental Housing for the Elderly
-
System Details: This is a system that provides subsidies for rental housing designed and maintained for the elderly (primarily those aged 60 and over), covering construction and improvement costs, as well as rent reduction expenses.
-
Subsidy Details:
-
Construction and Improvement Cost Subsidy: Subsidies for the development of housing equipped with structures and facilities that allow the elderly to live safely.
-
Rent Reduction Subsidy: Support for costs associated with reducing rent so that the elderly can live at a reasonable rent.
-
-
Eligibility: Only housing that has been “certified” by the city is eligible.
3. Promotion of Service-Provided Housing for the Elderly (Sahojyu)
-
System Details: A system where the national government, prefectures, and municipalities jointly provide subsidies for the development of Sahojyu, rent reductions, and planning. It particularly supports community-oriented housing development in collaboration with regional comprehensive care and the establishment of shared facilities.
-
Main Subsidy Details:
-
Subsidy for Planning Costs: Support for a portion of the costs incurred in creating housing development plans.
-
Improvement Cost Subsidy: Subsidies for costs related to the development of shared spaces and barrier-free modifications.
-
Rent Reduction Subsidy: Support for costs to make rent more affordable for residents (certain conditions apply).
-
Quick Comparison Table of Subsidy Systems
| System Name | Target Housing | Main Support Content |
|---|---|---|
| Excellent Private Rental Housing (Construction) | Construction-type rental housing (those certified as excellent) | Loan introduction and interest subsidies |
| Excellent Rental Housing for the Elderly | Rental housing certified for the elderly | Construction and improvement cost subsidies, rent reduction grants |
| Promotion of Supply for Service-Provided Elderly Housing | Service-provided housing for the elderly (Sakaiju) | Support for planning, maintenance cost subsidies, rent reduction subsidies, and other multifaceted support |
For detailed conditions and procedures, please check this website.
Leave your exterior wall cover work to Kakeru Koumuten, the exterior renovation specialists!
This concludes the information about the exterior wall cover method.
The exterior renovation that significantly improves insulation and offers a stylish look like a new build is limited to exterior wall siding work.
While the cost is higher compared to exterior wall painting, it comes with various benefits and is a recommended exterior renovation.
The important thing is to always obtain three or more comparative estimates if you are considering exterior wall cover work!
Our company specializes in exterior renovations, so if you have any concerns regarding roofs, rain gutters, or exterior walls, please consult Kakeru Koumuten Co., Ltd.!
We carry out everything from temporary scaffolding work to roof work and exterior wall renovation work with complete in-house construction. We are confident that we will not be outdone by other companies in terms of cost, quality, and efficiency in exterior work!
We welcome comparative 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 that of 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 Tama City, Tokyo!
・Trust Kakeru Koumuten for roof renovations in Tama City, Tokyo!
・Trust Kakeru Koumuten for exterior wall painting in Tama City, Tokyo!
・Trust Kakeru Koumuten for rain gutter repair and cleaning in Tama City, Tokyo!
・Trust Kakeru Koumuten for solar panel installation in Tama City, Tokyo!
・Trust Kakeru Koumuten for exterior wall cleaning in Tama City, Tokyo!
・Trust Kakeru Koumuten for waterproofing work in Tama City, Tokyo!
・Trust Kakeru Koumuten for leak repairs in Tama City, 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!




