If you are looking for an exterior wall siding contractor in Kakeru Koumuten, Koganei City, Tokyo

This will definitely be helpful for customers considering exterior wall siding in Koganei City, TokyoPlease take a look!

The most important thing to consider when looking into exterior wall siding is “comparative estimates”!
Let’s obtain at least three comparative estimates from exterior renovation companies that cover Koganei 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 wall.
It is possible to overlay various types of walls, such as ALC walls, ceramic siding, and mortar walls.
The exterior materials used in the exterior wall cover method are generally lightweight and durable metal siding.

Although the cost is higher compared to exterior painting, it is a renovation method for exterior walls that has various benefits and is gaining attention year by year.

Why is the exterior wall cover method so popular?

We would like to introduce the “five points” that have received positive feedback for Kakeru Koumuten’s exterior wall 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 another advantage!
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.
Moreover, by installing furring strips before the metal siding installation to create a ventilation layer, the insulation properties are 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 effectiveness!

Point 5　Improved Aesthetic Appeal!!

Various designs such as wood grain and tile patterns

Metal siding allows for a finish that resembles new construction, 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 Industry“, “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 doing exterior wall cover work with metal siding?

Next, we will explain the “three points to be cautious about” when performing exterior wall cover work using metal siding!

Caution 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 variation in estimate 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 a concern, you can request repairs from a specialized repair contractor!

Caution 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 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. Since this is a comparative estimate, I would like to request a quote for the same type of metal siding as the estimates from other companies.

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 entrusted us with the “Aiji Industrial/SF-Gal Stage Shine” metal siding! The above siding is made of Galvalume steel with heat-insulating fluorine processing, and it is integrated with insulation material, providing excellent thermal insulation. You mentioned that you obtained estimates from three companies, and we were able to secure your order due to our competitive pricing and thorough explanations compared to other companies!

Price Range

2,000,000 to 2,100,000 yen

Construction Period

Approximately 3 weeks

Existing Exterior Material / New Exterior Material

Existing exterior: ALC 　New exterior: Metal siding (Aiji Industrial/SF-Gal Stage Shine) 　Material: Galvalume steel with heat-insulating fluorine processing 　In-house warranty: 10 years 　Manufacturer warranty: Fading 10 years, rust 10 years, perforation 10 years 　Furring strips: Made of resin

1. Painting of Attached Parts

2. Removal of Equipment

3. Substrate Adjustment

4. Waterproof Paper Installation (may not be necessary)

5. Installation of Battens

6. Metal Work 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 guideline table for the estimated costs of exterior wall cover work.
It represents the estimated costs for a 30-tsubo exterior wall cover method.

The costs for the exterior wall cover work will be estimated based on the following calculation.
Exterior wall area (㎡) × Siding unit price + Equipment removal and installation costs + Additional painting costs = Total amount
This will be the calculation.

Material	Expected Durability (Years)	Cost Assuming 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 painted accessories and windows, as well as the equipment that needs 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 reliable contractor, such as “where should I request?”
The most important thing when selecting a contractor and obtaining a quote is to always obtain multiple quotes!

For this reason, when requesting exterior wall cover work, let’s check the following four points.

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, confirm whether the proposed siding meets your original requirements!

・Is it proposed using appropriate construction methods?

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, leading to mold or corrosion, and may cause 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 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 clear unit prices and quantities for items like foundation water drainage and trim lengths will provide reassurance and may prevent trouble.
If there are items of concern that are not included in the estimate, check the reason for their exclusion!

・Also 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 differ 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 existence of guarantees and aftercare maintenance

When choosing a contractor for exterior wall cover work, make sure to check for warranties.

Exterior wall cover work is one of the more expensive renovations, so in addition to the manufacturer’s warranty, be 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 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 conduct after-maintenance and send out annual DM, so if you wish, you can have inspections every year.

About Kakeru Koumuten Co., Ltd. Warranty翔工務店の屋根工事、外壁塗装工事、シーリング工事の保証など簡単にご説明させて頂いております！！ 弊社では前金、中間金は頂いておりません！！...

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

When requesting exterior wall cover work, be sure to obtain estimates from multiple contractors.

Even for the same repair, the costs can vary between contractors, as well as the warranties and after-sales services they offer.

Additionally, obtaining multiple estimates makes it easier to negotiate prices.

To request your desired repair contractor at a lower cost, obtaining estimates from multiple companies 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 cover work in-house

There is a cost difference between companies that handle the work in-house and those that outsource it to external companies, and there is also a higher likelihood of miscommunication and issues arising with external contractors.

Furthermore, if problems occur after the work is completed, the response may be slow, or there may be no dealings with the external contractor, leading to potential troubles.
Being able to respond immediately in case of issues 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 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 work.

Company Introduction

Company Overview神奈川で家の外装・屋根の工事、修理なら一番若くて親切な株式会社翔工務店にお任せください。 株式会社翔工務店はリフォームを通して美しく理想の生活空間を創るお手伝いをしています。外装改修、外壁塗装、雨樋修理清掃、屋根の塗装や重ね葺き葺き変えなどの部分的な修理まで、お客様のどのようなご要望にも全力でお応えします。...

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.!

Possible Subsidies and Grants inKoganei City, Tokyo

The following subsidies may be available in Koganei City, Tokyo.

What are Excellent Private Rental Housing?

• A system that promotes the supply of “high-quality private rental housing” that meets the standards set by Tokyo.

• It was a system that provided interest subsidies for construction funds, but new applications have ended since the fiscal year 2004.

• Registered properties were provided with preferential treatment for a certain period.

Main Features (Applicable during the registration period)

1. Security deposit is within 3 months of rent

2. No key money, renewal fees, guarantee fees, or rights fees required

3. Family-type units with a dedicated area of 50㎡ or more

4. Many properties are designed for barrier-free access.

* These preferential measures do not apply after the management period ends.

Tokyo Metropolitan Housing (Designated High-Quality Rental Housing)

• Housing constructed with the support of the national “Designated High-Quality Rental Housing System” and subsidies from the national government and Tokyo Metropolitan Government.

• High-quality rental housing primarily for middle-income families.

Subsidy Details

• Subsidies for construction costs are available.

• Some housing units offer rent subsidies (reductions).

• The tenant’s burden is determined by “contract rent – rent subsidy.”

• Subsidies decrease each year, and the tenant’s burden increases by a maximum of 3.5% annually.

• The subsidy period lasts up to 20 years, after which it is treated as general rental housing.

Subsidy Program for Landlords (Tokyo Sasa-Yell Housing Related)

Subsidies are available for renovations and equipment improvements carried out by landlords to enhance housing quality and ensure safety.

Main Menu

1. Seismic Renovation Subsidy

   • Properties lacking seismic resistance that commenced construction before May 31, 1981, are eligible.

   • Subsidy rate: 5/6 of eligible expenses, with a maximum of 2.5 million yen.

2. Housing Equipment Improvement Subsidy

   • Barrier-free renovations and the installation of safety equipment (handrails, step elimination, bathroom improvements, etc.).

   • Subsidy rate: 1/2, up to 500,000 yen per residence.

3. Monitoring Equipment Installation Subsidy

   • Introduction of monitoring equipment and services for the elderly.

   • Subsidy rate: 2/3, with a maximum of 40,000 yen per building.

4. Small Amount Short-Term Insurance Premium Subsidy

   • Insurance premium subsidies for dedicated housing for the elderly and others.

   • Subsidy rate: 2/3, with a maximum of 4,000 yen per building.

Eligibility Requirements

• New registration as “Tokyo Sasa-Yell Housing” is required.

• Subsidy application, construction, and performance reporting must be completed within the same fiscal year.

• The registration maintenance period is generally 10 years.

• Application period is from April 14, 2025, to February 27, 2026.

Summary

Type	Target Audience	Details	Remarks
Excellent Private Rental Housing	Residents	Deposit within 3 months / No key money or renewal fee / Over 50㎡ / Barrier-free	New certification has ended
Tokyo Metropolitan Housing (Special Excellent Rent)	Residents	Construction cost and rent subsidies available, burden increases by a maximum of 3.5% annually, subsidies for up to 20 years	After the period ends, it will be general rental
Seismic and Equipment Subsidy System	Landlords	Seismic retrofitting, barrier-free, monitoring devices, insurance premium subsidies	Registration and procedures within the fiscal year are mandatory

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 (cover method).

The exterior renovation that significantly improves insulation and offers a stylish look like a new building 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 that if you are considering exterior wall overlay work, be sure to get estimates 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 wall renovation work completely in-house. We are confident that we will not be outdone in terms of cost, quality, and organization 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 surveys are free!

If our construction plan is inferior to that of other companies, please feel free to decline!
Rest assured that we do not charge any cancellation fees or travel expenses!

We look forward to your inquiries. Thank you very much.

We welcome inquiries via LINE as well◎

For roofing, guttering, and exterior work and repairs in Kanagawa, contact Kakerukoumuten Co., Ltd..

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!