If you are looking for an exterior siding contractor in Kakeru Koumuten, Kita-ku, Tokyo

Kakeru Koumuten is based in Tokyo and has handled many exterior wall cover projects!

The major benefits of exterior wall cover construction 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 wall cover construction 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 Kita-ku, Tokyo, so please 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 the Kita area!

Estimates and consultations are free!
Multiple 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 the construction of overlaying a new exterior wall over the existing exterior wall.
It is possible to overlay various types of exterior 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 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 wall cover method so popular?

Here are the “five points” that have received praise 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 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.
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 puncture warranties, 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 Improved Aesthetics!!

Various designs such as wood grain and tile patterns

Metal siding allows for a finish that resembles a brand 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 to match the atmosphere of your building and your personal preferences!
Major manufacturers include “Aiji Industry“, “Keimyuu“, “Nichiwa“, and “Asahi Tostem“, each offering a wide 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 are the points to be aware of when performing exterior wall cover work with metal siding?

Next, we will explain the “three points to be aware of” 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, which can lead 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, 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 drawbacks.
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 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 nearly a month.
The long construction period can be a source of stress for residents, making it one of the drawbacks.

Examples of exterior wall cover work

BEFORE

AFTER

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 I will be getting multiple estimates, 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 created separate estimates for each!

You entrusted us with the metal siding “Aijii Industry/SF-Gal Stage Shine”!
The above siding is made of galvanized 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 you chose us because our costs were lower and our explanations were thorough!

Price Range
 2,000,000 – 2,100,000 yen
Construction Period
 Approximately 3 weeks
Existing Exterior Material / New Exterior Material

 Existing Exterior: ALC
 New Exterior: Metal Siding (Aijii Industry/SF-Gal Stage Shine)
 Material: Galvanized Steel with Heat-Insulating Fluorine Processing
 In-House Warranty: 10 years
 Manufacturer Warranty: Fading 10 years, Rust 10 years, Hole 10 years
 Furring Strips: Made of Resin

1. Painting of Auxiliary Parts

We will first paint areas not covered by wall siding (eaves, gables, fascia, etc.). To match the durability of the siding, we recommend using high-durability paints such as inorganic or fluorine types.

2. Removal of Equipment

We temporarily remove items that may obstruct the siding, such as rain gutters and air conditioning ducts.

3. Substrate Adjustment

If there is significant deterioration, we will perform joint sealing and adjust the substrate if the exterior wall is warped.

4. Waterproof Paper Installation (may not be necessary)

We will apply a highly breathable moisture-permeable sheet over the entire exterior wall. If the building is over 25 years old or shows significant deterioration, we recommend installing a waterproof sheet, but if there are no issues, we may proceed without it.

5. Installation of Battens

We will install battens over the entire exterior wall. The battens will be fixed at intervals of 455 mm, and wider boards will be installed around the windows. If the siding used is horizontal, the battens will be installed vertically, and if the siding is vertical, the battens will be installed horizontally.

6. Metal Work for Fittings

We will process and install corner bases, end caps, and foundation water-cutting metal.

7. Main Construction

Finally, we will cut the siding material and secure it with screws from the bottom to the top. Once the siding installation is complete, we will install joint covers and corners. We use stainless steel screws for fastening the siding materials!

8. Sealing at Various Locations

We will apply sealing to areas that require waterproofing. For sealing materials, we recommend using high-durability sealing materials such as Auton Exceed or SR Seal H100, which can expect nearly 30 years of durability if the colors match.

9. Reinstallation of Equipment

We will reinstall the removed rain gutters and air conditioning ducts. If the rain gutter brackets are of the driven type, we may change them to the screw type.

10. Completion

Finally, we will conduct cleaning and a review to complete the project.

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 roof overlay (cover method) on a building with a total area of 30 tsubo.

The cost of exterior wall cover work is determined by the following calculation: Exterior wall area (㎡) × Siding unit price + Equipment removal and installation costs + Additional painting costs = Total amount.

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 Over 40 years 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 to be removed and reattached.
Please note that this is just a rough estimate, and detailed quotes 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 in choosing 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.

1. Check the contents and materials of the estimate

2. Confirm the existence of warranties and aftercare maintenance

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 that the siding proposed 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 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, corrosion, or peeling and 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 clear unit prices and quantities for items like base water drainage and edge lengths 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 “type of battens“, “siding fasteners“, and “type of waterproof paper“!
For example, siding fasteners are screws, and the overall cost can 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 existence of warranties 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 offer after-maintenance services and send out annual direct mail, 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 get estimates from multiple contractors.

The cost of the same repair can vary between contractors, as can 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 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 materials!

4. Confirm whether the company performs exterior wall cover work in-house

There are differences in costs between companies that handle the work in-house and those that outsource it to external companies, and there is a higher likelihood of miscommunication and other issues with external contractors.

Additionally, if problems arise after construction, the response may be slow, or the company may not have dealings with the external contractor, leading to further complications.
Being able to respond quickly 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 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 providing high-quality construction.

Company Introduction

横浜市青葉区のショールーム

 

第一資材置き場

Kakeru Koumuten Co., Ltd. First Material StorageKakeru Koumuten Co., Ltd.
● We store scaffolding materials!
Since we can install temporary scaffolding in-house, we can provide high-quality exterior renovations at a lower cost!

第二資材置き場

Kakeru Koumuten Co., Ltd. Second Material Storage
● We store materials and tools related to exterior construction and painting work!
We also store tools and materials for the roof overlay (cover method)!

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.!

List of Areas in Kita-ku, Tokyo

Akabane Kita, Kita-ku / Akabane Dai, Kita-ku / Akabane Nishi, Kita-ku / Akabane Minami, Kita-ku / Akabane, Kita-ku / Iwabuchi-cho, Kita-ku / Ukima, Kita-ku / Oji Honcho, Kita-ku / Oji, Kita-ku / Kamijujō, Kita-ku / Kaminakasato, Kita-ku / Kamiya, Kita-ku / Kishicho, Kita-ku / Kirigaoka, Kita-ku / Sakae-cho, Kita-ku / Shimo, Kita-ku / Showa-cho, Kita-ku / Jujo-dai, Kita-ku / Jujo Nakahara, Kita-ku / Takinogawa, Kita-ku / Tabata Shinmachi, Kita-ku / Tabata, Kita-ku / Toshima, Kita-ku / Nakazato, Kita-ku / Nakajujō, Kita-ku / Nishigaoka, Kita-ku / Nishigahara, Kita-ku / Higashi Jujo, Kita-ku / Higashi Tabata, Kita-ku / Horifune, Kita-ku

Possible Subsidies and Grants in Kita-ku, Tokyo

The following subsidies may be available in Kita-ku, Tokyo.

“Long-term Excellent Housing Renovation Promotion Project”

1. Subsidy Rate:

1/3 of eligible expenses

2. Maximum Subsidy Amount:

Evaluation Standard Type (if certain performance improvements are recognized):​800,000 yen per unit

Certified Long-Term Excellent Housing Type (when obtaining certification for Long-Term Excellent Housing (renovation)):​1,600,000 yen/unit

*If renovation work is carried out to accommodate three generations living together, an additional 500,000 yen will be added to the above amount for young families, child-rearing households, or existing home buyers who carry out renovation work.

3. Requirements to Receive Assistance:

Securing Living Space: The floor area of at least one floor (excluding stair areas) must be 40㎡ or more, and the total area must be 55㎡ or more.

Living Environment: If located within areas such as district plans or landscape plans, it must be in harmony with them.

Development of Maintenance and Preservation Plan: For the maintenance and preservation period (30 years or more), the content required by the evaluation criteria must be established as a maintenance and preservation plan.

Content of Renovation Work: It is required that the renovated residence meets the following performance criteria.

Performance Item Overview Required/Optional
Measures against deterioration of structural framework Prevention of decay and termite damage to pillars, floors, etc. Required
Earthquake Resistance Ensuring earthquake resistance to prevent collapse during major earthquakes Required
Energy Conservation Measures Insulation of windows, walls, floors, ceilings, and efficiency improvements for water heaters, etc. Required
Ease of Maintenance and Renewal Facilitating inspection, cleaning, and replacement of plumbing Optional
Measures for the Elderly, etc. (for multi-family housing only) Barrier-free design Optional
Variability (for condominiums only) Facilitate future changes in floor plans Optional

4. Other Requirements:

Renovation work for areas pointed out in the inspection including exterior wall and roof painting, exterior wall and roof replacement, and rain gutter replacement.

Conducting Inspections: A current condition inspection by a specialist must be conducted before starting renovation work.

Creating a Maintenance Plan and Renovation History: Develop a maintenance plan after renovation and create and preserve a history of the work.

For detailed conditions and procedures, please check the official website of the Ministry of Land, Infrastructure, Transport and Tourism.

Existing Housing Insulation Renovation Support Project

Overview of the System and Target Construction Categories

System Name: Existing Housing Insulation Renovation Support Project (Ministry of the Environment Subsidy, executed by the Hokkaido Environmental Foundation)

This is a format where you can choose either one of the plans: “Total Insulation” for insulating the entire house or “Living Room Only Insulation” focusing on the windows in the living room .

Eligible Participants

Single-family homes: Individual owners or those who plan to own in the future.

Condominiums (for sale):

Individual application: Owner or representative of the management association.

Overall application: Representative of the management association or a representative composed of owners of the entire building.

Subsidy Amount

Subsidy Rate: Within 1/3 of the eligible expenses

Maximum Subsidy Amount (per dwelling): Up to 150,000 yen

Eligible Products and Construction Conditions

Eligible items must be high-performance building materials registered with the secretariat (such as insulation materials, windows, glass, etc.), and it is required that energy-saving effects are expected to be over 15%.

Insulation only for the living room requires that “all windows in the living room must be renovated,” and the methods eligible include “roof overlay (cover method),” “inner windows,” and “outer window replacement.”

For detailed conditions and procedures, please check this website.

Kita Ward “Housing Renovation Support Subsidy Program”

Eligible Persons

Individuals residing in Kita Ward (in owner-occupied single-family homes or exclusive parts of condominium apartments) who do not have any outstanding resident tax payments for all residents. Individuals who have not previously received this subsidy program.

Requirements

The renovation work must contribute to the longevity of the housing through exterior wall painting, repairs, or replacements (new constructions are not eligible). The construction cost (excluding tax) must be recognized as 100,000 yen or more. A pre-application (approval) is required before starting the construction, and the work must commence after the subsidy decision is made.

Subsidy Rate and Amount (Maximum)

The subsidy is equivalent to 20% of the lower amount between the estimated cost and the actual construction cost.

The maximum subsidy amount is up to 100,000 yen.

Please see here for more details!

Leave your exterior wall cover work to Kakeru Koumuten Co., Ltd., the exterior renovation specialists!

This concludes the information on the exterior wall cover method.

Exterior renovations that significantly improve insulation and provide a stylish look like a new build are limited to exterior wall siding work.
While the cost is higher compared to exterior wall painting, it offers various benefits and is a recommended exterior renovation.
The important thing is, if you are considering exterior wall cover 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 entirely in-house. We are confident that our costs, quality, and efficiency in exterior work are unmatched!
We welcome competitive estimates 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!
Rest assured, we do not charge any cancellation fees or travel expenses!

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

We welcome consultations via LINE as well◎

LINE

LINE

We are also updating our Instagram regularly◎ Please follow us, thank you◎

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神奈川で屋根・雨樋・外装の工事、修理なら
株式会社翔工務店へ

株式会社翔工務店は平均年齢20代後半の若い会社ですが、技術はどこにも負けていません。

いちばんの強みは、足場工事、屋根工事、塗装工事とすべて自社で行えること。一般には分業されるこの業界にあって、一式で頼めるので管理に手間がかからず、コストも抑えることが出来ます。何より、トラブルがあればすぐにかけつけます!

自信をもって、宣言できます。私たちは、神奈川で一番若くて親切なリフォーム屋です!