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

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

The most important thing when considering exterior siding is “getting multiple estimates”!
Let’s obtain at least three estimates from exterior renovation companies that cover Aoba-ku, Sagamihara!

Estimates and consultations are free!
We welcome multiple estimates!

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 method that overlays a new exterior on top of the existing exterior.
It is possible to overlay 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.

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

Why is the exterior cover method popular?

Here are the “five points” that explain why Kakeru Koumuten’s exterior cover method is well-received!

Point 1　Super high durability!!

Metal siding offers an overwhelmingly high expected durability compared to exterior 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 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 painting, manufacturer warranties are generally not included.
Metal siding comes with solid manufacturer warranties such as coating warranties and hole warranties, providing a high level of reassurance for long-term exterior renovations!

Point 4　Improved Waterproofing!!

With the exterior material being double-layered, it significantly enhances waterproofing by preventing rainwater intrusion.
Applying waterproof paper before installation further increases the waterproofing effectiveness!

Point 5　Improved Aesthetic Appeal!!

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 and your preferences for the building!
Major manufacturers include “Aiji Industrial“, “Keimyuu“, “Nichiwa“, and “Asahi Tostem“, each offering a wide range 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 to be cautious about when using metal siding for exterior wall cover work?

Next, we will explain the “three points of caution” when performing exterior wall cover work with 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, leading 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, 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 type of exterior renovation.
While exterior painting typically takes about two to three weeks, the construction period for exterior wall cover work can often approach one 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 metal siding that is highly durable and comes with a solid warranty. Since this is a comparative estimate, I would like to request a quote for the same metal siding as the estimates from other companies.

Proposal Details

We have proposed a roof overlay method using metal siding as per your request. You had several preferred metal sidings, so we created separate estimates for each one! We have been entrusted with the metal siding “Aijii Kogyo/SF-Gal Stage Shine”! 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 – 2,100,000 yen

Construction Period

Approximately 3 weeks

Existing Exterior Material / New Exterior Material

Existing exterior: ALC 　New exterior: Metal siding (Aijii Kogyo/SF-Gal Stage Shine) 　Material: Galvalume steel with heat-insulating fluorine coating 　In-house warranty: 10 years 　Manufacturer warranty: 10 years against fading, 10 years against rust, 10 years against perforation 　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. 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 serves as 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 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 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 and windows to be painted, as well as the equipment to be removed or installed.
Please note that this is just a guideline for the cost, and detailed estimates 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 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!

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

By checking 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 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 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 exterior wall and the new exterior wall material using a method called “ventilation method.”
If you skip the ventilation layer and apply it directly, 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 detailed descriptions of the lengths of foundation water cuts and edge trims 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!

・Also check the auxiliary materials to be used!

Check not only the siding itself but also the types of auxiliary materials such as “types of battens,” “siding fasteners,” and “types 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 presence 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 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 desired, annual inspections are possible.

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 get 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.

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 issues arising from miscommunication with external contractors.

Furthermore, if problems occur after construction, the response may be slow, 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. is a remodeling company based in Aoba-ku, Yokohama, Kanagawa Prefecture, specializing in roofing, 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 provide high-quality work at reduced costs.

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.!

Possible Subsidies and Grants in Minami Ward, Sagamihara City

There are possible subsidies available in Minami Ward, Sagamihara City.

Overview

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

Eligible Housing and Conditions

• The eligible housing must be located within the residential guidance area (mountainous areas and disaster risk areas are not eligible).

• Eligibility criteria for assistance are as follows

  • Must be registered as a resident in Sagamihara City and intend to reside for at least 5 years after receiving assistance

  • No outstanding municipal taxes or similar debts

  • Households that fall under one of the following categories

    • Pregnant women (under 39 years old)

    • Couples (under 39 years old or registered partners)

    • Parent households 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 parent households, moving from outside the city, outside the residential guidance area, working within the city, using Tsukui timber

• 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 renovating parent households’ residences

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

• Additional items: Living with parent households, moving from outside the city, outside the residential guidance area, working within the city, using Tsukui timber

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

Application Process Flow

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

2. Report of Achievements: Submit resident certificate, contract, photos, etc., after purchase or completion of construction

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

Important Points

• 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.

For exterior wall cover construction, trust the exterior remodeling specialists at Kakeru Koumuten!

This concludes the information on the exterior wall cover method.

Exterior remodeling that significantly improves insulation and achieves a stylish look like new construction is limited to exterior wall siding work.
While the cost is higher compared to exterior painting, it offers various benefits and is a recommended exterior remodeling option.
Importantly, if you are considering exterior wall cover construction, be sure to obtain 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 with Kakeru Koumuten Co., Ltd. in Yokohama!

We handle everything from temporary scaffolding construction to roof work and exterior wall renovation 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 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!
You can rest assured that we do not charge any cancellation fees or travel expenses!

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

Consultations via LINE are also very welcome◎

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!