If you are looking for an exterior wall siding contractor in Arakawa-ku, Tokyo, please contact Kakeru Koumuten Co., Ltd.
Kakeru Koumuten Co., Ltd. is based in Tokyo and has handled 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, points to note, and costs!
This will definitely be useful for customers considering exterior wall siding in Arakawa-ku, Tokyo, so please 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 the Arakawa area!
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 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.
While the costs are 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?
Here are the “five points” that explain why Kakeru Koumuten’s exterior wall cover method is well-received!
Point 1 Super high durability!!
Metal siding offers an overwhelmingly high expected durability compared to exterior painting.
Made of Galvalume steel, SG 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 cover method has integrated insulation materials.
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 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 reassurance 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 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 of your building and your preferences!
Major manufacturers include “Aiji Industry“, “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 are the points 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 performing exterior wall cover work using metal siding!
Point 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, be 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 disadvantages.
If noticeable scratches occur and are a concern, you can 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 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 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. Since you had several preferred types of metal siding, we created separate estimates for each one! You entrusted us with the metal siding “Aiji Industry/SF-Gal Stage Shine”! |
| 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 Auxiliary Parts
2. Removal of Equipment
3. Base 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 roof overlay (cover method) on a 30-tsubo building.
The cost of the exterior wall cover work will be estimated based on the calculation below.
Exterior wall area (㎡) × Siding unit price + Equipment removal and installation cost + Additional painting cost = 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/㎡~) |
| SGL Steel | 35 to 40 | Including Tax Approximately 2,200,000 yen (Siding unit price 12,500 yen/㎡~) |
| Aluminum | 40 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 guideline amount, and detailed estimates 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 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.
1. Check the contents and materials of the estimate
2. Confirm the existence of warranties and aftercare services
3. Obtain multiple estimates from several 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 that the siding proposed aligns with your original requirements!
・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 do not create a ventilation layer and directly attach the siding, 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 becomes 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 such as foundation water drainage and edge lengths will provide peace of mind and help prevent issues.
If there are items of concern not included in the estimate, check the reasons for their exclusion!
・Also check the auxiliary materials to be used!
Check the types of “furring strips“, “siding fasteners“, and “waterproof paper“, not just the siding itself, but also the types of detailed auxiliary materials!
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 more resistant to rust and is a recommended fastener.
2. Confirm the existence of warranties and aftercare services
When choosing a contractor for exterior wall cover work, be 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 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 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 conduct after-maintenance and send out annual DM, so if you wish, 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 obtain estimates from multiple contractors.
The cost of the same repair can vary between contractors, and warranties and after-sales services may differ as well.
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 contractor performs exterior wall cover work in-house
There are cost differences between companies that handle the work in-house and those that outsource to external companies, and issues such as miscommunication with external contractors can easily arise.
Additionally, if problems occur after construction, the response may be slow, or there may be no dealings with external construction companies, leading to potential troubles.
Being able to respond immediately when something goes wrong is one of the reasons why companies that perform the work in-house are recommended!
About Kakeru Koumuten
Kakeru Koumuten Co., Ltd. is a renovation company 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 keep costs down while ensuring high-quality construction.
Company Introduction
● We store scaffolding materials!
Since we can install 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 work!
We also store tools and materials for the roof overlay (cover method)!
Customer Reviews
Service Areas
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo Metropolis.
Click here for inquiries to Kakeru Koumuten Co., Ltd.!
List of Areas in Arakawa-ku, Tokyo
Arakawa, Arakawa-ku / Nishiogu, Arakawa-ku / Nishi-Nippori, Arakawa-ku / Higashiogu, Arakawa-ku / Higashi-Nippori, Arakawa-ku / Machiya, Arakawa-ku / Minami-Senchu, Arakawa-ku
Possible Subsidies and Grants in Arakawa-ku, Tokyo
The following subsidies may be available in Arakawa-ku, Tokyo.
“Long-term Excellent Housing Renovation Promotion Project”
1. Subsidy Rate:
1/3 of eligible expenses
2. Maximum Subsidy Amount:
Evaluation Standard Type (when a certain level of performance improvement is recognized):800,000 yen per unit
Certified Long-term Excellent Housing Type (when obtaining certification for long-term excellent housing (renovation)):1,600,000 yen per unit
*If renovation work is carried out to accommodate three generations living together, an additional 500,000 yen will be added to the above amount for young families, child-rearing households, or existing home buyers who carry out the renovation work.
3. Requirements for receiving subsidies:
Securing living space: The floor area of at least one floor (excluding stair areas) must be 40㎡ or more, and the total floor area must be 55㎡ or more.
Living environment: If located within areas such as district plans or landscape plans, it must be in harmony with them.
Development of a maintenance plan: A maintenance plan must be established that specifies the content required by the evaluation criteria for a maintenance period of 30 years or more.
Content of renovation work: It is required that the renovated residence meets the following performance criteria.
| Performance Item | Overview | Required/Optional |
|---|---|---|
| Measures against deterioration of structural framework | Prevention of decay and termite damage to pillars, floors, etc. | Required |
| Earthquake Resistance | Ensuring earthquake resistance to prevent collapse during major earthquakes | Required |
| Energy Conservation Measures | Insulation of windows, walls, floors, ceilings, and efficiency improvements for water heaters, etc. | Required |
| Ease of Maintenance and Updates | Facilitating inspection, cleaning, and replacement of water supply and drainage pipes | Optional |
| Measures for the Elderly (for Multi-family Housing Only) | Barrier-free design | Optional |
| Variability (for multi-family residences only) | Facilitates future changes in floor plans, etc. | Optional |
4. Other Requirements:
Renovation work for areas pointed out during inspection: Exterior wall and roof painting, exterior wall and roof replacement, rain gutter replacement, etc.
Implementation of Inspection: Conduct a current condition inspection by a specialist before starting renovation work.
Creation of Maintenance Plan and Renovation Work History: Develop a maintenance plan after renovation and create and preserve a history of the work.
For detailed conditions and procedures, please check the official website of the Ministry of Land, Infrastructure, Transport and Tourism.
Support Program for Insulation Renovation of Existing Homes
Overview of the System and Target Construction Categories
Program Name: Support Program for Insulation Renovation of Existing Homes (Ministry of the Environment Subsidy, executed by the Hokkaido Environmental Foundation)
This program allows you to choose one of two plans: “Total Insulation” for insulating the entire house, or “Living Room Only Insulation” for focusing on insulating the windows in the living room.
Eligible Participants
Single-family Homes: Individual owners or those who plan to own in the future.
Multi-family Residences (Condominiums):
Individual Application: Owner or representative of the management association.
Overall Application: Representative composed of the management association or owners of the entire building.
Subsidy Amount
Subsidy Rate: Up to 1/3 of the eligible expenses
Maximum Subsidy Amount (per dwelling): Up to 150,000 yen
Eligible Products and Construction Conditions
Eligible products must be registered with the secretariat as eligible products, such as high-performance building materials (insulation, windows, glass, etc.), and it is required that energy-saving effects are expected to be over 15%.
For insulation only in the living room, it is mandatory to “renovate all windows in the living room,” and the methods eligible are “roof overlay (cover method),” “inner windows,” and “outer window replacement.”
For detailed conditions and procedures, please check this website.
For exterior wall cover construction, trust Kakeru Koumuten Co., Ltd., the exterior renovation specialists!
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 cost is 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 different companies!
Our company specializes in exterior renovations, so if you have any concerns regarding roofs, rain gutters, or exterior walls, please consult Kakeru Koumuten Co., Ltd.!
From temporary scaffolding work to roof construction and exterior wall renovation, we carry out all work with our own team. We are confident that we won’t be outdone by other companies in terms of cost, quality, and efficiency in exterior construction!
We welcome competitive estimates with confidence!
You will be glad you chose us! We take every request seriously to ensure you feel this 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.
・For exterior renovations in Aoba-ku, Yokohama, trust Kakeru Koumuten Co., Ltd.!
・For roof renovations in Aoba-ku, Yokohama, trust Kakeru Koumuten Co., Ltd.!
・For exterior wall painting in Aoba-ku, Yokohama, trust Kakeru Koumuten Co., Ltd.!
・For rain gutter repairs and cleaning in Aoba-ku, Yokohama, trust Kakeru Koumuten Co., Ltd.!
・For solar panel installation in Aoba-ku, Yokohama, trust Kakeru Koumuten Co., Ltd.!
・For exterior wall cleaning in Aoba-ku, Yokohama, trust Kakeru Koumuten Co., Ltd.!
・For waterproofing work in Aoba-ku, Yokohama, trust Kakeru Koumuten Co., Ltd.!
・For leak repairs in Aoba-ku, Yokohama, trust Kakeru Koumuten Co., Ltd.!
・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.
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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!
