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

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

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

Estimates and consultations are free!
We welcome multiple estimates!

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 exterior 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 wall 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 an overwhelmingly high expected durability compared to exterior wall 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, which is one of its strengths!
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 has integrated insulation material.
Moreover, by installing furring strips 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, making it a reassuring choice 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 Aesthetics!!

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 patterns to tile and wood grain styles.
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 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 with metal siding exterior cover work?

Next, we will explain the “three points to be cautious about” when performing exterior 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 likelihood of issues arising.
Since there can be considerable variation in estimate costs, to ensure a satisfactory project,
if you are considering the exterior 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 drawbacks.
If noticeable scratches occur and are a concern, you can request repairs from a specialized repair contractor!

Caution 3　Long construction period

Exterior 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 cover work can often take close to a month.
The lengthy construction period can be a source of stress for residents, making it one of the disadvantages.

Examples of exterior 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 created separate estimates for each! You entrusted us with the “Aijii Industry/SF-Gal Stage Shine” metal siding! The above siding is made of Galvalume steel with a heat-insulating fluorine coating, and it is integrated with insulation, providing excellent thermal insulation properties. 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 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 Accessory 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 table of estimated costs for exterior wall cover work.
It is an estimate for the cost of performing the exterior wall overlay (cover method) on a building with a floor 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
This is how it will be calculated.

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/㎡~)
SGL Steel	35 to 40	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 auxiliary parts to be painted, the number of windows, and the equipment to be removed and reattached.
Please note that this is just a rough estimate, and a detailed quote is 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 a quote is to always obtain multiple quotes!

For this reason, when requesting exterior wall cover work, let’s check the following 5 points.

By checking the above 5 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 to confirm whether the siding proposed meets your original requirements!

・Is it proposed with the appropriate construction method?

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 do not create a ventilation layer and directly attach it, moisture cannot escape, leading to mold or corrosion, and it may also result in the peeling or lifting of the exterior wall material.
Check whether the proposed work 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 the unit prices and quantities of items like base water drainage and edge trim clearly listed 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 main siding but also the types of detailed auxiliary materials, such as “types of battens,” “siding fasteners,” and “types of waterproof paper“!
For example, the 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 presence of warranties and after-sales 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 types of exterior renovations, so in addition to the manufacturer’s warranty, also confirm whether the contractor offers their 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 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 services.

Kakeru Koumuten Co., Ltd. always provides a warranty for exterior wall cover work.
We also conduct after-sales 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, as can the warranties and after-sales services offered.

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

To request your preferred 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

There are differences in costs between companies that handle in-house construction and those that outsource to external companies, and issues such as miscommunication with external contractors are more likely to occur.

Moreover, if problems arise 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 in-house construction are recommended!

5. Confirm whether a simulation of the exterior wall cover work is possible

The above photo is a simulation of what it would look like if metal siding were installed on an actual building!
The cover work or replacement work for metal siding is not a cheap project, and since it involves highly durable exterior wall work, the design will remain the same for decades.
Be sure to check the simulation after completion before proceeding with the exterior wall cover work!
Kakeru Koumuten Co., Ltd. can assist you from design proposals to simulations!

About Kakeru Koumuten

Kakeru Koumuten Co., Ltd. specializes in roofing, exterior wall work, and scaffolding work, all performed with complete in-house construction.
Since we can assemble our own temporary scaffolding and carry out exterior wall cover work,
we can provide high-quality work at a reduced cost.

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 Reviews

Service Areas

Kakeru Koumuten accepts requests throughout Kanagawa Prefecture and all of Tokyo.

Contact page for Kakeru Koumuten Co., Ltd. is here!

Subsidies and Grants Available in Machida City, Tokyo

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

1. Long-term Excellent Housing System and Benefits (Tokyo)

• Overview of the Long-term Excellent Housing System
  
  Housing that meets standards for durability, living environment, disaster response, unit area, and maintenance plans is certified as a high-performance residence that can be lived in for a long time.

• Main Benefits of Certification

  • Tax benefits such as income tax and real estate acquisition tax

  • Possibility of being eligible for various subsidies and interest rate reductions on housing loans

• Information on Subsidy Programs
  
  Can be utilized in conjunction with national subsidy programs such as the “Child-rearing Green Housing Support Project” and the “Long-term Excellent Housing Renovation Promotion Project.”

2. Comparison with Tokyo’s “Tokyo Zero Emission Housing” Program

• What is Tokyo Zero Emission Housing?
  
  A program where the Tokyo Metropolitan Government provides subsidies for the construction of new homes with high energy-saving performance. It also includes subsidies for the installation of solar panels and storage batteries, as well as full exemptions from real estate acquisition tax.

• Subsidy Amount (Fiscal Year 2025)

  • Level A: Up to 2.4 million yen

  • Level B: 1.6 million yen

  • Level C: 400,000 yen

• Tax Benefits
  
  Houses that meet the criteria may be eligible for full exemption from real estate acquisition tax.

3. Comparison of Major Subsidies

Tokyo-Related Subsidy Programs

Program Name	Details	Subsidy Amounts, etc.
Tokyo Zero Emission Housing	Subsidy for new construction based on energy-saving performance	Level A: 2.4 million yen / Level B: 1.6 million yen / Level C: 400,000 yen
Existing Housing Energy-Saving Diagnosis and Design Support	Subsidy for energy-saving design and diagnosis of current homes	Subsidy rate and maximum amount can be confirmed in the application guidelines (Application period: May 22, 2025 – February 16, 2026)
Individual Housing Interest Subsidy	Subsidy for loan interest when rebuilding fire-resistant homes in densely wooded areas	Reduces housing loan interest by 1% (for 10 years)

Subsidy Programs by the National and Local Governments

• Child-Rearing Green Housing Support Project

  • Eligible: GX-oriented housing, long-term excellent housing, ZEH standard housing

  • Subsidy Amount (Estimated for FY 2025):

    • GX Type: 1,600,000 yen / unit

    • Long-term Excellent: 800,000 yen / unit

    • ZEH Standard: 400,000 yen / unit

    • *Additional charges apply for demolition of old houses (e.g., Long-term Excellent 1,000,000 yen)

• ZEH Support Project (National)

  • Subsidy Amount:

    • ZEH: 550,000 yen / unit

    • ZEH+: 900,000 yen / unit

    • Additional subsidies for storage batteries and more

• Long-term Excellent Housing Renovation Promotion Project (for existing homes)

  • Subsidy Amount:

    • Evaluation Standard Type: Within 1/3 of renovation costs (maximum 800,000 yen)

    • Certified Long-term Excellent Housing Type: Also within 1/3 (maximum 1,600,000 yen)

    • An additional 500,000 yen for young families and multi-generational households

4. Which systems can be combined? Tips for utilization

• Combination Utilization
  
  “Tokyo Zero Emission Housing” + “Child-Rearing Green Housing” can be used together depending on the conditions.
  
  On the other hand, some specific systems may not be used together, so it is important to check the conditions for each system.

• Benefits of Certification
  
  Long-term excellent housing certification provides benefits in various areas such as tax incentives, subsidy systems, and loan advantages, making the value of obtaining the certification very high.

• For Renovations and Existing Homes
  
  By utilizing the “Long-Term Excellent Housing Renovation Subsidy” and “Energy-Saving Diagnosis and Design Support,” you can improve performance while also receiving subsidies.

Summary

1. Long-Term Excellent Housing offers a wide range of benefits such as tax incentives, subsidies, and loan advantages when certified.

2. Tokyo’s “Tokyo Zero Emission Housing” System provides significant subsidies when aiming for energy-efficient high-performance housing in new constructions.

3. Utilizing National and Other Systems can greatly reduce the financial burden of building or renovating a home.

4. Conditions for Combination Vary by System, so it is important to check the details and whether combinations are allowed when applying.

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 method.

The exterior renovation that significantly improves insulation and offers a stylish look like a new build 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, 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 excel in cost, quality, and efficiency 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 your satisfaction.
Estimates and inspections are free!

If our construction plan is inferior to that of other companies, please feel free to decline!
There are no cancellation fees or travel expenses, so please rest assured!

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!