If you are looking for an exterior wall siding contractor in Kakeru Koumuten, Kamakura City, Kanagawa Prefecture

This will definitely be helpful for customers considering exterior wall siding in Kamakura City, 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 that cover Kamakura 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 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 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 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.
Available in Galvalume steel, SGL steel, and aluminum, metal siding comes in various types, 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 wall 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 wall painting, manufacturer warranties are generally not included.
Metal siding comes with solid manufacturer warranties, including coating and perforation guarantees, providing a high level of reassurance 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 construction, 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 to match the atmosphere and your preferences for the building!
Major manufacturers include “Aiji Industrial“, “Keimyuu“, “Nichihara“, 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 to be aware of when doing 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 installation

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 estimation 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!

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 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 method using metal siding as per your request. Since you had several preferred types of metal siding, we have created separate estimates for each one! You entrusted us with the “Aiji 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 – 2,100,000 yen

Construction Period

Approximately 3 weeks

Existing Exterior Material/New Exterior Material

Existing Exterior: ALC 　New Exterior: Metal Siding (Aiji Industry/SF-Gal Stage Shine) 　Material: Galvalume steel with heat-insulating fluorine coating 　In-house Warranty: 10 years 　Manufacturer Warranty: Fading 10 years, Red Rust 10 years, Perforation 10 years 　Furring: Made of resin

1. Painting of Additional Parts

2. Removal of Equipment

3. Substrate Adjustment

4. Waterproof Paper Installation (may not be necessary)

5. Installation of Battens

6. Metal Work Processing

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 a roof overlay (cover method) on a building with a total 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 and windows to be painted, 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 confirm the following four points.

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 if the proposed materials meet your requirements, such as durability and insulation!
Since there are various types of metal siding, such as cost-effective siding and insulation-focused siding, confirm whether the siding aligns with your original needs!

・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 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, making it hard to compare estimates.
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 not included in the estimate, confirm 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, 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 existence of warranties and aftercare

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 checking for manufacturer warranties, also 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 common.

Additionally, some contractors offer after-sales service 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 offer after-maintenance services and send out annual direct mail, so if you wish, 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 get estimates from multiple contractors.

Even for the same repair work, the costs may vary between contractors, as well as the warranties and after-sales services offered.

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

To request your desired repair contractor at a lower cost, it is essential to obtain estimates from multiple contractors.
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 the work in-house and those that outsource it to external companies, and there is a higher likelihood of issues arising from miscommunication with external contractors.

Moreover, if problems occur after the work is completed, the response may be slow, or there may be no dealings with the external contractor, leading to further complications.
Being able to respond quickly when issues arise is one of the reasons why companies that perform the work in-house are recommended!

About Kakeru Koumuten

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 inKamakura City, Kanagawa Prefecture

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

1. Overview of Kamakura City’s Long-Term Excellent Housing System

• Purpose of the System
  
  This system promotes the dissemination of housing that can be used for a long time in good condition (long-term excellent housing). It is necessary to submit the housing plan to Kamakura City and obtain certification before starting construction. Certification requires meeting criteria related to structure, equipment, and maintenance management plans.

• Benefits of Certification

  • Tax special measures (such as reductions in fixed property tax)

  • Lower interest rates on housing loans

  • Discounts on earthquake insurance premiums

  • Utilization of subsidies from the national and local governments

• Application Process

  1. Request a preliminary examination from a registered housing performance evaluation organization

  2. Undergo a technical review and obtain necessary certificates

  3. Submit a certification application to the Kamakura City Building Guidance Division (attaching the certificate may reduce the application fee)

  4. Receive the certification notification and commence construction

2. What unique subsidies does Kamakura City offer?

There is no direct cash subsidy program specified.

However, the following related support is available:

• Reduction in Fixed Property Tax
  
  Newly built homes certified as long-term excellent housing are eligible for fixed property tax reduction measures.

  • For floor areas up to 120㎡, 1/2 of the fixed property tax is reduced

  • Typically, the reduction period is 5 years, but for long-term excellent housing, it is extended to 7 years.

3. National Support Programs and Other Subsidies

Even if it is not specific to Kamakura City, there is a possibility of receiving subsidies by combining national programs and those from other municipalities.

(A) Child-Rearing Green Housing Support Project (Ministry of Land, Infrastructure, Transport and Tourism)

Targeting child-rearing households and young households.

• In the case of new construction

  • Long-term excellent housing: 800,000 yen

  • If demolition is involved, an additional 200,000 yen is added.

  • GX-oriented housing: up to 1,600,000 yen

  • ZEH standard housing: 400,000 yen + demolition addition of 200,000 yen

• In the case of renovation

  • Implementing 3 mandatory types of work: upper limit of 600,000 yen

  • Implementing 2 types of work: upper limit of 400,000 yen

(B) LCCM Housing Maintenance Promotion Project (Ministry of Land, Infrastructure, Transport and Tourism)

Support for newly constructed high-performance housing (LCCM housing) such as long-term excellent housing.

• Up to 1,400,000 yen per unit

• Half of the increased costs within are eligible for subsidies.

(C) Support from Other Municipalities and Prefectures

Kanagawa Prefecture and neighboring municipalities may have subsidy programs related to ZEH and renewable energy equipment installation.

4. Summary Table: List of Support Programs

Support Program Name	Eligibility Conditions / Purpose	Subsidy / Preferential Content
Property Tax Reduction (Kamakura City)	For newly built homes certified as long-term excellent housing	50% reduction on property tax for up to 120㎡, for a period of 7 years (normally 5 years)
Child-Rearing Green Housing Support Project (National)	For child-rearing and young households, new construction and renovations	New construction: up to 800,000 yen + additional, Renovation: up to 600,000 yen
LCCM Housing Development Promotion Project (National)	New construction of LCCM housing	Up to 1,400,000 yen, subsidy within half of the increased costs
Support from Other Municipalities and Prefectures	For the installation of energy-saving equipment and renewable energy devices	Example: Up to 500,000 yen subsidy in neighboring cities

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

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

This concludes the information on the exterior wall cover method.

Exterior renovations that significantly improve insulation and provide a stylish new look are limited to exterior wall siding work.
While the costs are higher compared to exterior wall painting, there are various benefits, making it 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 in Yokohama City!

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 compared to other companies!
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!