If you are looking for an exterior siding contractor in Isehara City, Kanagawa Prefecture, come to Kakeru Koumuten Co., Ltd.

This will definitely be useful for customers considering exterior siding in Isehara City, so please take a look!

The most important thing to consider when looking into exterior siding is “comparing estimates”!
Let’s get at least three estimates from exterior renovation companies that cover Isehara City!

Estimates and consultations are free!
We welcome comparisons of estimates!

What is the exterior cover method?

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

The exterior cover method is a construction method that overlays a new exterior on top of the existing exterior.
It can be applied to various types of exteriors, including ALC walls, ceramic siding, and mortar exteriors.
The exterior materials used in the exterior cover method are generally lightweight and durable metal siding.

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

Why is the exterior cover method so popular?

Here are the “five points” that explain the popularity of Kakeru Koumuten Co., Ltd.’s exterior cover method!

Point 1　Super high durability!!

Metal siding offers an overwhelmingly high expected durability compared to exterior wall 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 wall 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 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 performance!

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 that match the atmosphere and your preferences of the building!
Major manufacturers include “Ai-Gi Kogyo“, “Keimyuu“, “Nichiwa“, and “Asahi Tostem“, each offering a wide range of types and designs of metal siding.
If you find a product of interest in 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 of caution” 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 occurrence of troubles.
Since there can be a lot of variation in estimate costs, to ensure a satisfactory construction, if you are considering the exterior cover method with metal siding, make sure to get estimates from three or more companies and review the details carefully!

Caution 2　Prone to dents and scratches

Metal siding can develop dents from impacts if 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 cover work can be considered the most extensive type of exterior renovation.
While exterior painting typically takes about 2 to 3 weeks, exterior 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 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 metal sidings, we have created separate estimates for each! You entrusted us with the “Aiji Industry/SF-Gal Stage Shine” metal siding! The above siding is made of Galvalume steel sheet 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 (Aiji Industry/SF-Gal Stage Shine) 　Material: Galvalume steel sheet 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. 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 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 determined by 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 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 cost 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 a detailed estimate 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 reputable contractor, such as “where should I request this?”
The most important thing when choosing a contractor or getting an estimate is to always obtain multiple estimates!

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 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 needs!

・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, 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 clearly specified?

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 detailed information such as the length of the foundation water cut and the edge trim, along 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, confirm the reasons 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 can 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 aftercare services

When choosing a contractor for exterior wall covering work, make sure to check for warranties.

Exterior wall covering 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!
For contractors that have a warranty period, repairs may be done for free within that warranty period.

The warranty period varies depending on the contractor and the scope of work, but a 5 to 10-year period is typical.

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 covering work.
We also conduct after-maintenance and send out annual direct mail, so if desired, annual inspections are possible.

About Kakeru Koumuten Co., Ltd. WarrantyKakeru Koumuten Co., Ltd. provides a simple explanation of our roof construction, exterior wall painting, and sealing work guarantees!! We do not require any advance or interim payments!!...

3. Obtain estimates from multiple contractors (at least 3 companies)

When requesting exterior wall covering work, be sure to get estimates from multiple contractors.

Even for the same repair, 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 price, it is essential to get estimates from several companies.
When obtaining estimates, compare not only the costs but also the details of the plans, materials, and auxiliary materials!

4. Confirm whether the company performs exterior wall covering work in-house

There are cost differences between companies that handle the work in-house and those that outsource it to external companies, which can also lead to miscommunication and other issues 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 further complications.
One reason to recommend companies that perform the work in-house is that they can respond immediately if something goes wrong!

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 with complete in-house construction.
By assembling temporary scaffolding and performing exterior wall covering work in-house,
we can keep costs down while ensuring high-quality construction.

Company Introduction

Company Overview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 Isehara City, Kanagawa Prefecture

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

Subsidy Program for Seismic Renovation of Wooden Houses

Purpose and Eligibility of the Subsidy Program

• Purpose: To prepare for large-scale earthquakes, this program partially subsidizes the costs of seismic diagnosis, renovation, and demolition of wooden houses. It promotes the safety of citizens and the development of earthquake-resistant communities. Note that the city will not conduct home visits by contractors.

Eligible Properties and Applicants

• Eligible Properties:

  • Houses built using traditional wooden frame construction (single-family homes or mixed-use residences*) before May 31, 1981, with two stories or fewer.

  • If there have been any extensions after June 1, 1981, they must be less than half of the total floor area.

• Eligible applicants:

  • Individuals who own and reside in a house within the city and are not in arrears on city taxes.

  • If the owner does not reside in the property, their spouse or first-degree relatives living in the city can apply by submitting a letter of consent.

Details and Amount of Subsidy

Subsidy Details	Target Housing (General)	Wooden Houses Along Roads (Especially Along Designated Roads)
Seismic Diagnosis	10/10 of Diagnosis Costs (Up to 100,000 yen)	Same as Above (Up to 100,000 yen)
Seismic Renovation Work	1/2 of Construction Costs (Up to 500,000 yen)	2/3 of Construction Costs (Up to 1,000,000 yen)
Demolition Work	1/2 of Construction Costs (Up to 250,000 yen)	2/3 of Construction Costs (Up to 500,000 yen)

• *Consumption tax is not covered by the subsidy.

Achievements

• From fiscal year 2007 to fiscal year 2024, 101 seismic diagnoses have been conducted, of which 99 cases (approximately 98%) were judged to have a “high possibility of collapse” or “some possibility.” The seismic performance standard requires a score of “1.0 or higher” after renovation.

Subsidy Process & Application Procedure

Pre-consultation: Consult with the city hall’s Building and Housing Division and confirm the necessary documents.

1. Submission of Application Documents: Submit the required documents along with your application. After a review of the requirements, you will receive a notification of the decision.

2. Commencement of Construction: Once you receive the notification, promptly commence construction. The construction supervision will be conducted by a registered architect.

3. Completion Report and Billing: After the completion of the work, submit a report along with receipts and photos. After the subsidy is confirmed, you can submit your bill to receive payment.

 

For more details, please check the official website of Isehara City.

For exterior wall cover construction, leave it 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 look like new construction are limited to exterior wall siding work.
While the costs are higher compared to exterior painting, there are various benefits, making it a recommended exterior renovation.
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 carry out everything from temporary scaffolding work to roof construction 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!
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 roof, gutter and exterior construction and repairs in Kanagawa,
contact Kakeru Koumuten Co., Ltd.

Kakeru Koumuten is a young company whose team is, on average, in their late twenties, but our skills are second to none.

Our greatest strength is that we handle scaffolding, roofing and painting entirely in-house. In an industry where these tasks are usually divided among contractors, our complete service simplifies project management and helps keep costs down. Above all, if a problem arises, we respond promptly.

We proudly describe ourselves as the youngest and most helpful renovation company in Kanagawa!

 

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