Leave your exterior wall cover work in Ashigarakami-gun, Kanagawa (Nakai, Oi, Matsuda, Yamakita, Kaisei) to Kakeru Koumuten Co., Ltd.!
If you are looking for an exterior wall siding contractor in Ashigarakami-gun, Kanagawa Prefecture (Nakai Town, Oi Town, Matsuda Town, Yamakita Town, Kaisei Town), contact Kakeru Koumuten
Kakeru Koumuten is based in Yokohama and has handled many exterior wall cover projects!
The major benefits of exterior wall cover work 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 work is gaining attention year by year.
Here, we will also introduce case studies, benefits, points to note, and costs!
Ashigarakami-gun, Kanagawa Prefecture (Nakai Town, Oi Town, Matsuda Town, Yamakita Town, Kaisei Town)is definitely useful for customers considering exterior wall siding, so please take a look!
The most important thing when considering exterior wall siding is “multiple estimates”!
Ashigarakami-gun, Kanagawa Prefecture (Nakai Town, Oi Town, Matsuda Town, Yamakita Town, Kaisei Town) is within the service area, so let’s get at least three estimates from exterior remodeling companies!
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 method of exterior remodeling 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.
Made of Galvalume steel, SGL steel, or 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, 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 battens before the metal siding installation to create a ventilation layer, the insulation performance is significantly improved!
This enhancement 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 highly reassuring choice for long-term exterior renovations!
Point 4 Improved Waterproofing!!
With the exterior material being double-layered, it effectively prevents rainwater intrusion, significantly enhancing waterproofing.
Applying waterproof paper before installation further increases waterproofing performance!
Point 5 Improved Aesthetics!!
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 to match the atmosphere and your preferences for the building!
Major manufacturers include “Aiji Industrial“, “Keimyuu“, “Nichiwa“, and “Asahi Tostem“, each offering a variety 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 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 wide range of estimates, to ensure a satisfactory construction, if you are considering the exterior wall cover method with metal siding, be 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 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 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 close to 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 construction
| 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. Since you had several preferred metal sidings, we created separate estimates for each one! You entrusted us with the “Aijie Industry/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 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 table showing the estimated costs for exterior wall cover work.
It serves as a guideline for the costs associated with a 30-tsubo exterior wall cover method.
The costs for exterior wall cover work are 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 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/㎡~) |
| 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 amount will vary depending on the number of painted accessories and windows, as well as the equipment that needs 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 might be difficult to find a reliable contractor, wondering “where should I request this?”
The most important thing when choosing a contractor or getting a quote is to always obtain multiple estimates!
For this reason, when requesting exterior wall cover work, let’s check the following four points.
1. Check the contents and materials of the estimate
2. Confirm the presence of warranties and aftercare services
3. Obtain estimates from multiple 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 needs?
Check if the proposed materials meet your requirements, such as durability and insulation!
Since there are various types of metal siding, such as those focused on cost or insulation, make sure that the siding proposed aligns with your original needs!
・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 wall and the new siding material using a method called “ventilation method“.
If you apply it directly without a ventilation layer, moisture cannot escape, which can lead to mold or corrosion, and may cause peeling or lifting of the siding material.
Check if 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.
Having clear unit prices and quantities for items like foundation water drainage and trim lengths 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 main siding but also the types of detailed auxiliary materials such as “types of furring strips“, “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 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 cover work, make sure to check for warranties.
Exterior wall cover work is one of the more expensive renovations, so in addition to checking for manufacturer warranties, also confirm if the contractor offers their own warranty!
If the contractor has a warranty period, they may offer 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-service separate from warranties, so be sure to check if the contractor you are considering has after-service.
Kakeru Koumuten Co., Ltd. always provides a warranty for exterior wall cover work.
We also conduct after-maintenance, and we send out annual DM, so if you wish, inspections can be done 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 can warranties and after-service.
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 ancillary supplies!
4. Confirm whether the company performs exterior wall cover work in-house
Companies that handle in-house construction and those that outsource to external companies will have different costs, and there is a higher likelihood of miscommunication and other issues with external contractors.
Moreover, if problems arise after construction, responses may be delayed, or there may be no dealings with external construction companies, leading to potential troubles.
Being able to respond immediately in case of issues 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 reduced costs.
Company Introduction


● We store scaffolding materials!
Since we can install temporary scaffolding ourselves, 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 Ashigarakami District
Nakai Town / Oi Town / Matsuda Town / Yamakita Town / Kaisei Town
Possible Subsidies and Grants in Ashigarakami District, Kanagawa Prefecture (Nakai Town, Oi Town, Matsuda Town, Yamakita Town, Kaisei Town)
The following subsidies may be available in Ashigarakami District, Kanagawa Prefecture (Nakai Town, Oi Town, Matsuda Town, Yamakita Town, Kaisei Town).
Kaisei Town: Property Tax Reduction System for Certified Long-Term Excellent Housing
Conditions for Eligible Housing
-
Newly built houses certified as long-term excellent housing
-
Certification applies to houses built between June 4, 2009 (Heisei 21) and March 31, 2024 (Reiwa 6)
-
Floor area standards
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Detached houses: 50㎡ or more and up to 280㎡
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Rental housing (excluding detached houses): 40㎡ or more and up to 280㎡
-
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In the case of mixed-use housing: The floor area of the residential part must be more than half of the total
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If the floor area exceeds 120㎡, only up to 120㎡ is eligible for the reduction
Details of the Reduction
-
Property tax reduction for the eligible area (up to 120㎡) is 50% off
-
Reduction period
-
Two-story houses: 5 years after construction
-
Three-story or higher fire-resistant residential buildings: 7 years after construction
-
Summary Table
| Item | Details |
|---|---|
| Target Housing | Certified Long-term Excellent Housing, New Construction (2009-2024) |
| Target Area | Detached Houses: 50-280㎡, Rental Housing: 40-280㎡, Mixed-use Housing with residential area over 1/2 |
| Tax Reduction Area | Up to 120㎡ |
| Tax Reduction Rate | 50% reduction in property tax |
| Reduction Period | 2-story: 5 years, 3-story or more: 7 years |
For more details, please check the official site of Ashigarakami-gun, Kanagawa (Nakai Town, Oi Town, Matsuda Town, Yamakita Town, Kaisei Town).
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 build are limited to exterior wall siding work.
While the cost is 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!
From temporary scaffolding work to roof work and exterior wall renovation, we carry out all work 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 are committed to taking your requests seriously.
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.
・Exterior renovations in Ashigarakami-gun, Kanagawa (Nakai, Oi, Matsuda, Yamakita, Kaisei) are entrusted to Kakeru Koumuten Co., Ltd.!
・Ashigarakami-gun, Kanagawa (Nakai, Oi, Matsuda, Yamakita, Kaisei)Roof renovations are entrusted to Kakeru Koumuten Co., Ltd.!
・Rain gutter repairs and cleaning in Ashigarakami-gun, Kanagawa (Nakai, Oi, Matsuda, Yamakita, Kaisei) are entrusted to Kakeru Koumuten Co., Ltd.!
・Solar panel installation work in Ashigarakami-gun, Kanagawa (Nakai, Oi, Matsuda, Yamakita, Kaisei) is entrusted to Kakeru Koumuten Co., Ltd.!
・Exterior wall cleaning in Ashigarakami-gun, Kanagawa (Nakai, Oi, Matsuda, Yamakita, Kaisei) is entrusted to Kakeru Koumuten Co., Ltd.!
・Exterior wall painting in Ashigarakami-gun, Kanagawa (Nakai, Oi, Matsuda, Yamakita, Kaisei) is entrusted to Kakeru Koumuten Co., Ltd.!
・Waterproofing work in Ashigarakami-gun, Kanagawa (Nakai, Oi, Matsuda, Yamakita, Kaisei) is entrusted to Kakeru Koumuten Co., Ltd.!
・Leak repairs in Ashigarakami-gun, Kanagawa (Nakai, Oi, Matsuda, Yamakita, Kaisei) are entrusted to Kakeru Koumuten Co., Ltd.!
・After maintenance by Kakeru Koumuten Co., Ltd.
・Construction menu and price list of Kakeru Koumuten Co., Ltd.
・Kakeru Koumuten Co., Ltd. Staff Blog & Announcements
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