If you are looking for an exterior wall siding contractor in Aoba-ku, Sagamihara, contact Kakeru Koumuten Co., Ltd.

This will definitely be helpful for customers considering exterior wall siding in Aoba-ku, Sagamihara, so please take a look!

The most important thing to consider when thinking about exterior wall siding is “multiple estimates”!
Let’s obtain at least three estimates from exterior renovation companies covering Aoba-ku, Sagamihara!

Estimates and consultations are free!
We welcome multiple estimates!

What is the exterior wall cover method?

We will explain the recommended points and precautions of the exterior wall cover method in detail!

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.

While the costs are 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?

Here are the “five points” that make Kakeru Koumuten Co., Ltd.’s exterior wall cover method highly regarded!

Point 1　Super high durability!!

Metal siding offers an overwhelmingly high expected durability compared to exterior painting.
Made of Galvalume steel, SG steel, or 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 battens 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 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 styles to tile and wood grain patterns.
You can choose from a variety of designs that match the atmosphere of the building and your 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 you are interested in from 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, I will explain the “three points of caution” when using metal siding for exterior wall cover methods!

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 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 a concern, it is possible to request repairs from a specialized repair contractor!

Caution 3　Long construction period

Exterior wall cover work can be considered one of the most extensive renovations in exterior remodeling.
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 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 in the estimates from other companies.

Proposal Details

We have proposed a roof overlay (cover 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 “Aijii Industry/SF-Gal Stage Shine” metal siding! The above siding is made of Galvalume steel with heat-insulating fluorine coating, 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 (Aijii Industry/SF-Gal Stage Shine) 　Material: Galvalume steel with heat-insulating fluorine coating 　In-house warranty: 10 years 　Manufacturer warranty: Fading 10 years, rust 10 years, perforation 10 years 　Furring strips: Made of resin

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 Metalwork

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 costs associated with exterior wall cover work.
It serves as a cost estimate for performing the exterior wall overlay method on a building with a floor 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 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/m²~)
SGL Steel	35 to 40	Including Tax Approximately 2,200,000 yen (Siding unit price 12,500 yen/m²~)
Aluminum	40 or more	Including Tax Approximately 2,500,000 yen (Siding unit price 14,000 yen/m²~)

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.
This is just a rough estimate, so for a detailed quote, please feel free to contact us as it is completely free of charge.

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 challenging to find a reputable 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!

Therefore, when requesting exterior wall cover work, let’s confirm the following four points.

By confirming the above four points, you will be able to choose a reliable 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 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 the siding directly without creating 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 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.
Having clear unit prices and quantities for items like foundation water stops and edge trims 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, 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 warranties and aftercare services

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 types of exterior 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 depending on the contractor and the specifics of the work, but a 5 to 10-year setting is common.

Additionally, some contractors offer after-sales service separate from the warranty, so be sure to check with the contractor you are considering if they provide after-sales service.

Kakeru Koumuten Co., Ltd. always includes a warranty with its exterior wall cover work.
We also provide after-maintenance, and we send out annual direct mail, so if you wish, inspections can be conducted every year.

Warranty and Payment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.

The cost of the same repair can vary between contractors, and there may be differences in warranties and after-sales services as well.

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 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 also a higher likelihood of issues such as communication errors with external contractors.

Moreover, if problems arise after construction, the response may be slow, or there may be no dealings with the external contractor, leading to potential troubles.
Being able to respond immediately when something happens is one of the reasons why companies that perform the work in-house are recommended!

About Kakeru Koumuten Co., Ltd.

Kakeru Koumuten Co., Ltd. is a remodeling company based in Aoba-ku, Yokohama, Kanagawa Prefecture, specializing in roof work, exterior wall work, and scaffolding work with complete in-house construction.
By assembling temporary scaffolding and performing exterior wall cover work in-house,
we can keep costs down while ensuring high-quality construction.

Company Introduction

Corporate Profile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 Testimonials

Service Areas

Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.

Click here for inquiries to Kakeru Koumuten Co., Ltd.!

PossibleSubsidies and Grants in Chuo-ku, Sagamihara City

There are potential subsidies available in Chuo-ku, Sagamihara City.

Overview

Sagamihara City has implemented a subsidy system to promote the settlement and relocation of child-rearing households and young households, and to revitalize the circulation of used homes, providing support for the purchase of used homes or renovation of parent households.

Eligible Recipients and Conditions

• The target residence must be located within a residential guidance area (areas with mountainous regions and disaster risk zones are excluded)

• Eligible applicants must meet the following criteria

  • Must be registered as a resident in Sagamihara City and have the intention to reside for at least 5 years after receiving the subsidy

  • Must not have any tax delinquencies

  • Must belong to one of the following households

    • Pregnant women (under 39 years old)

    • Couples (under 39 years old or registered partners)

    • Households with parents living with children under 18 years old

Subsidy Amount

In the case of purchasing a used house

• Basic subsidy: 500,000 yen

• Additional items: Living with parents, moving from outside the city, outside the residential guidance area, working within the city, using Tsukui lumber

• Maximum subsidy amount: up to 1,000,000 yen (moving from outside the city) / 950,000 yen (moving within the city)

In the case of renovations for parent households

• Subsidy of 1/5 of the construction cost (up to 400,000 yen)

• Additional items: Living with parents, moving from outside the city, outside the residential guidance area, working within the city, using Tsukui lumber

• Maximum subsidy amount: up to 800,000 yen (for those moving from outside the city) / 750,000 yen (for moving within the city)

Application Process

1. Application for Grant: Gather necessary documents and apply before the contract (before purchase or construction)

2. Report of Achievements: After purchase or completion of construction, submit resident registration, contract, photos, etc.

3. Request for Grant: After the subsidy amount is determined, submit the request documents to receive the grant

Important Notes

• Application period: From April 1, 2025, to February 27, 2026 (postmark valid)

• If construction or purchase has started before applying, it is not eligible

 

For more details, please check the official site of Sagamihara City.

Leave your exterior wall cover construction to the exterior renovation specialists at Kakeru Koumuten!

This concludes the information on the exterior wall cover method.

The significant improvement in insulation and the stylish appearance akin to new construction can only be achieved through exterior remodeling with wall siding work.
While the cost is higher compared to exterior painting, it offers various advantages and is a recommended option for exterior remodeling.
The important thing is, if you are considering wall cover 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 Co., Ltd. in Yokohama!

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 efficiency in exterior work surpass those of other companies!
We welcome competitive estimates with confidence!
You’ll 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.

We welcome consultations 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!