If you are looking for an exterior wall siding contractor in Kakeru Koumuten Co., Ltd., Ayase City, Kanagawa Prefecture

This will definitely be helpful for customers considering exterior wall siding in Ayase City, so please take a look!

The most important thing when considering exterior wall siding is “multiple estimates”!
Let’s obtain at least 3 estimates from exterior renovation companies that cover Ayase City!

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 a construction method that overlays a new exterior wall on top of 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 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 “5 points” that have received positive feedback for Kakeru Koumuten Co., Ltd.’s exterior wall cover method!

Point 1　Super high durability!!

Metal siding offers an overwhelmingly high expected durability compared to exterior wall painting.
Made of Galvalume steel, SG 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 comes with integrated insulation material.
Moreover, by installing battens before the metal siding installation to create a ventilation layer, the insulation performance is significantly improved!
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 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 peace of mind 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 Aesthetic Appeal!!

Various designs such as wood grain and tile patterns

Metal siding allows for a finish that resembles a new build, which is impossible to achieve 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 your building and your personal preferences!
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 aware of when doing exterior wall cover work with metal siding?

Next, we will explain the “three points to be cautious about” 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, leading to a higher occurrence of troubles.
Since there can be a lot of variation in estimated costs, to ensure a satisfactory construction, if you are considering the exterior wall cover method with metal siding, it is advisable 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 drawbacks.
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 usually 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 drawbacks.

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 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 metal sidings, 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 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 – 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 processing 　In-house warranty: 10 years 　Manufacturer warranty: 10 years for fading, 10 years for rust, 10 years for perforation 　Furring strips: Made of resin

1. Painting of Accessory 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 reference table for the estimated costs of exterior wall cover work.
It is an estimate for the cost of 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 calculation below.
Exterior wall area (㎡) × Siding unit price + Equipment removal and installation cost + Additional painting cost = 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.
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 difficult to find a reliable contractor, such as “where should I request?”
The most important thing when choosing a contractor or obtaining an estimate 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 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, leading to mold or corrosion, and it 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 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 the lengths of base water cuts and edge trims clearly listed 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 reasons 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 seem cheaper at first glance, stainless steel is rust-resistant and is recommended for fasteners.

2. Confirm the existence of warranties and aftercare services

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

Exterior wall cover work is one of the more expensive types of exterior renovations, so in addition to checking for manufacturer warranties, also verify if 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 type of work, but a 5 to 10 year setting is common.

Additionally, some contractors offer after-sales services 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 cover work.
We also conduct after-maintenance and send out annual DM, so if desired, annual inspections can be arranged.

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 warranties and after-sales services may differ as well.

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 if the company performs exterior wall cover work in-house

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

Moreover, 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 quickly in case of any issues is one of the reasons why companies that perform in-house 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 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 Ayase City, Kanagawa Prefecture

The following subsidies may be available in Ayase City, Kanagawa Prefecture.

Reduction of Fixed Asset Tax for Certified Long-Term Excellent Housing

Eligible Housing

Housing that meets all of the following conditions is eligible:

1. Newly constructed based on the “Act on Promotion of the Spread of Long-Term Excellent Housing” with certification from the administrative agency

2. Houses built between June 4, 2009, and March 31, 2026

3. Floor area of 50 to 280㎡ (for single-family homes)

   • For rental housing (not detached), the area must be 40㎡ or more per unit.

4. The residential part occupies more than half of the total floor area of the building (including mixed-use housing).

Reduction Details

• Area eligible for reduction: Up to 120㎡ equivalent for each residential unit.

• Reduction rate: 50% (half) reduction on the fixed property tax for that portion.

Reduction Period

• Fire-resistant and quasi-fire-resistant houses of three stories or more → 7 years after construction.

• Other houses → 5 years after construction.

Regarding Applications

• An application is required to receive the reduction.

• Submit the prescribed “Application for Reduction” along with a copy of the certification notice by January 31 of the year in which the new fixed property tax is imposed (the next day if it falls on a holiday).

• This system is an alternative measure to the “New Housing Reduction Measure” and cannot be combined with it.

Summary in Table

Item	Details
Target Housing	Certified long-term excellent housing, newly built between June 4, 2009, and March 31, 2026, with floor area conditions
Reduction Rate	50% reduction in property tax (for housing up to 120㎡)
Duration	Fire-resistant housing of 3 stories or more: 7 years, others: 5 years
Application Deadline	Application must be submitted by January 31 of the year in which the first day of the property tax assessment year falls (if it’s a holiday, the next day)
Not Applicable Together	Cannot be combined with new housing tax reduction measures

For more details, please check theofficial site of Ayase City, Kanagawa Prefecture.

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

This concludes our explanation of 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 issues with roofs, rain gutters, or exterior walls, please consult Kakeru Koumuten in Yokohama!

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!
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!
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.

 

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!