目次
- 1 If you are looking for an exterior wall siding contractor in Kakeru Koumuten Co., Ltd. in Ninomiya Town, Nakagun, Kanagawa Prefecture
- 1.1 What is the exterior wall cover method?
- 1.2 Examples of exterior wall cover work
- 1.2.1 1. Painting of Attached Parts
- 1.2.2 2. Removal of Equipment
- 1.2.3 3. Substrate Adjustment
- 1.2.4 4. Waterproof Paper Installation (may not be necessary)
- 1.2.5 5. Installation of Battens
- 1.2.6 6. Metal Work for Fittings
- 1.2.7 7. Main Construction
- 1.2.8 8. Sealing at Various Locations
- 1.2.9 9. Reinstallation of Equipment
- 1.2.10 10. Completion
- 1.3 About the Costs of Exterior Wall Covering Work
- 1.4 How to Choose a Siding Contractor
- 1.5 About Kakeru Koumuten
- 1.6 Customer Testimonials
- 1.7 Service Areas
- 1.8 Possible Subsidies and Grants inNinomiya Town, Nakagun, Kanagawa Prefecture
- 1.9 Leave your exterior wall cover work to the exterior renovation specialists at Kakeru Koumuten!
If you are looking for an exterior wall siding contractor in Kakeru Koumuten Co., Ltd. in Ninomiya Town, Nakagun, Kanagawa Prefecture
Kakeru Koumuten Co., Ltd. is based in Yokohama and handles many exterior wall cover projects!
The major benefits of exterior wall cover projects are the following three points!
“Improved insulation”
“High durability with solid guarantees for peace of mind”
“Beautiful finish like a new building that cannot be achieved with exterior painting”
Exterior wall cover projects are gaining attention year by year.
Here, we will also introduce case studies, benefits, precautions, and costs!
This will definitely be useful for customers considering exterior wall siding in Ninomiya Town, Nakagun, 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 Ninomiya Town, Nakagun!
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 can be applied to 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 “five points” that have received positive feedback for Kakeru Koumuten Co., Ltd.’s exterior wall cover method!
Point 1 Super high durability!!
Metal siding offers significantly higher durability compared to exterior 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, 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 comes with integrated insulation material.
Moreover, by installing battens before the metal siding, a ventilation layer is created, significantly enhancing insulation!
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 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 assurance for long-term exterior renovations!
Point 4 Improved Waterproofing!!
With the exterior material being double-layered, it effectively prevents rainwater intrusion, greatly enhancing waterproofing.
Applying waterproof paper before installation further increases waterproofing!
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 styles to tile and wood grain patterns.
You can choose from a variety of designs that 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 are the points to be aware of when doing exterior wall cover work with metal siding?
Next, I will explain the “three points of caution” when performing exterior wall cover work using 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 may 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 is arguably the most extensive type of exterior renovation.
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. |
| Proposal Details |
| We have proposed a roof overlay method using metal siding as per your request. You had several preferred types of metal siding, so we created separate estimates for each! You entrusted us with the “Aijii Kogyo/SF-Gal Stage Shine” metal siding! |
| Price Range |
| 2,000,000 – 2,100,000 yen |
| Construction Period |
| Approximately 3 weeks |
| Existing Exterior Material/New Exterior Material |
|
Existing exterior: ALC |
1. Painting of Attached 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 costs associated with exterior wall cover work.
It serves as a cost estimate for performing the exterior wall overlay (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/m²~) |
| SGL Steel | 35 to 40 years | Including tax Approximately 2,200,000 yen (Siding unit price 12,500 yen/m²~) |
| Aluminum | 40 years 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 auxiliary parts to be painted, the number of windows, and the equipment to be removed and reattached.
This is just a rough estimate, so for a detailed quote, please feel free to contact us as it is completely free of charge.
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.
1. Check the contents and materials of the estimate
2. Confirm the existence of guarantees and aftercare maintenance
3. Obtain multiple quotes from different contractors (at least three companies)
4. Check if the contractor performs the exterior wall cover work in-house
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 requirements?
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 verify if the siding aligns with 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 adhere it, moisture cannot escape, leading to mold and corrosion, or it may cause peeling or lifting of the exterior wall material.
Check if 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.
If the unit prices and quantities for items like base water cut and edge trim lengths are clearly stated, it 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!
・Also 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 resistant to rust and is the recommended fastener.
2. Confirm the existence of guarantees and aftercare maintenance
When choosing a contractor for exterior wall cover work, be sure to check for warranties.
Exterior wall cover work is a significant expense in exterior renovations, so in addition to the manufacturer’s warranty, 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 nature 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 service.
Kakeru Koumuten Co., Ltd. always includes a warranty with exterior wall cover work.
We also provide after-maintenance services, sending out annual DM, so if desired, inspections can be conducted every year.
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, 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 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 materials!
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 there is a higher likelihood of miscommunication and issues with external contractors.
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 happens is one of the reasons why companies that perform in-house construction 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 construction at a reduced cost.
Company Introduction


● We store scaffolding materials!
Since we can set up temporary scaffolding in-house, we can provide high-quality exterior renovations at a lower cost!


● We store materials and tools related to exterior construction and painting!
We also store tools and materials for the exterior wall cover method!
Customer Testimonials
Service Areas
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.
Click here for inquiries to Kakeru Koumuten Co., Ltd.!
List of Areas in Ninomiya Town
Ninomiya Town Isshiki / Ninomiya Town Kawai / Ninomiya Town Nakazato / Ninomiya Town Ninomiya / Ninomiya Town Fujimigaoka / Ninomiya Town Matsune / Ninomiya Town Midorigaoka / Ninomiya Town Yamanishi / Ninomiya Town Yurigaoka
Possible Subsidies and Grants inNinomiya Town, Nakagun, Kanagawa Prefecture
The following subsidies may be available in Ninomiya Town, Nakagun, Kanagawa Prefecture.
Ninomiya Town: Property Tax Reduction System for Long-Term Excellent Housing
Eligible Housing
Housing that meets all of the following conditions is eligible.
-
Newly built housing certified as long-term excellent housing
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Housing built by March 31, 2026 (Reiwa 8)
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The residential floor area must be within the following range
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Single-family homes: 50㎡ or more and up to 280㎡
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Rental houses (not single-family): 40㎡ or more and up to 280㎡
-
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In the case of mixed-use residences: the residential portion must be more than half of the entire building
Details of the Reduction
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Eligible Area for Reduction: Up to 120㎡ of the residential portion per unit
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Reduction Rate: 50% reduction on fixed property tax for the eligible portion
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Reduction Period
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General residential properties (mainly two-story): 5 years after construction
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Fire-resistant and quasi-fire-resistant structures of three stories or more: 7 years after construction
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* This reduction system is different from the “new residential tax reduction” and cannot be applied simultaneously.
Application Procedure
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Application Deadline: By January 31 of the year following the year of construction
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Required Documents
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“Application for Fixed Property Tax Reduction for Long-term Excellent Housing”
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A copy of the certification notice for long-term excellent housing
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Summary Table of Contents
| Item | Details |
|---|---|
| Target Housing | Newly built houses certified as long-term excellent housing (until March 31, 2026) |
| Floor Area Conditions | Detached houses: 50–280㎡, rental houses: 40–280㎡, mixed-use houses must have living space of more than 1/2 |
| Reduction Target Area | Residential area up to 120㎡ |
| Reduction Rate | 50% reduction in property tax |
| Reduction Period | General housing: 5 years, fire-resistant housing of 3 stories or more: 7 years |
| Application Deadline | By January 31 of the year following construction |
| Required Documents | Reduction application form, copy of certification notice |
For more details, please check theofficial sitehere in Ninomiya Town, Nakagun, 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 look like a new building 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.
Importantly, if you are considering exterior wall cover work, 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 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!
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 others, 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.
・Trust Kakeru Koumuten Co., Ltd. for exterior renovations in Ninomiya, Nakagun, Kanagawa!
・Ninomiya, Nakagun, KanagawaTrust Kakeru Koumuten Co., Ltd. for roof renovations in Ninomiya, Nakagun, Kanagawa!
・Trust Kakeru Koumuten Co., Ltd. for rain gutter repairs and cleaning in Ninomiya, Nakagun, Kanagawa!
・Trust Kakeru Koumuten Co., Ltd. for solar panel installation in Ninomiya, Nakagun, Kanagawa!
・Trust Kakeru Koumuten Co., Ltd. for exterior wall cleaning in Ninomiya, Nakagun, Kanagawa!
・Trust Kakeru Koumuten Co., Ltd. for exterior painting in Ninomiya, Nakagun, Kanagawa!
・Trust Kakeru Koumuten Co., Ltd. for waterproofing work in Ninomiya, Nakagun, Kanagawa!
・Trust Kakeru Koumuten Co., Ltd. for leak repairs in Ninomiya, Nakagun, Kanagawa!
・After maintenance by Kakeru Koumuten Co., Ltd.
・Construction menu and price list of Kakeru Koumuten Co., Ltd.
・Staff blog and announcements of Kakeru Koumuten Co., Ltd.
We welcome inquiries via LINE as well◎
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!







