Leave Your Exterior Wall Covering Work in Ota-ku, Tokyo to Kakeru Koumuten Co., Ltd.!
If you are looking for an exterior siding contractor in Ota-ku, Tokyo, visit Kakeru Koumuten Co., Ltd.
Kakeru Koumuten Co., Ltd. is based in Tokyo and has handled many exterior cover projects!
The major benefits of exterior 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 cover work is 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 siding in Ota-ku, Tokyo, so please take a look!
The most important thing when considering exterior siding is “multiple estimates”!
Let’s get at least three estimates from exterior renovation companies that cover Ota-ku!
Estimates and consultations are free!
Multiple estimates are very welcome!
What is the exterior cover method?
We will explain in detail the recommended points and precautions of the exterior cover method!
The exterior cover method is a construction that overlays a new exterior on top of the existing exterior.
It can be applied to various exteriors such as ALC walls, ceramic siding, and mortar walls.
The exterior materials used in the exterior cover method are generally lightweight and durable metal siding.
Although the cost is 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 popular?
Here are the “5 points” that have received praise for Kakeru Koumuten’s exterior cover method!
Point 1 Super high durability!!
Metal siding offers significantly higher 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, which is 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 material.
Moreover, by installing battens before the metal siding installation to create a ventilation layer, the insulation performance is 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 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 option 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 effectiveness!
Point 5 Enhanced 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 of the building!
Major manufacturers include “Aiji Industrial“, “Keimyuu“, “Nichiwa“, and “Asahi Tostem“, each offering various 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 when performing exterior wall cover work with metal siding?
Next, we will explain the “three points of caution” when using metal siding for exterior wall cover methods!
Caution 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 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!
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 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 metal siding that is highly durable and comes 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 have created separate estimates for each! We have been entrusted with the metal siding “Aijii 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. 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 estimated costs of exterior wall cover work.
It represents the estimated costs for 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 additional 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 reputable contractor, such as “where should I request?”
The most important thing when choosing a contractor or obtaining a quote is to always obtain multiple quotes!
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 existence of warranties and aftercare
3. Obtain multiple quotes from several contractors (at least three companies)
4. Confirm whether the contractor performs the exterior wall cover work in-house
By confirming the above four points, you will be able to choose a reliable 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 meets your original requirements!
・Is it proposed with the appropriate construction method?
When performing exterior wall cover work, it is necessary to establish 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 a ventilation layer, moisture cannot escape, leading to mold and corrosion, or it may cause peeling and lifting of the exterior wall material.
Check whether the proposed construction 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 is difficult to understand the construction method and what the costs are for, making it hard to compare estimates.
If the unit prices and quantities of base water cuts and edge trims are clearly stated, it will provide a sense of security and help prevent issues.
If there are items of concern that are not included in the estimate, check the reason for their exclusion!
・Also check the auxiliary materials to be used!
Check the types of “furring strips“, “siding fasteners“, and “types of 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 seem cheaper at first glance, stainless steel is resistant to rust and is a recommended fastener.
2. Confirm the existence of warranties and aftercare
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 renovations, so in addition to the manufacturer’s warranty, also check for the presence of a company warranty!
If the contractor has a warranty period, they may offer free repairs within that period.
The warranty period varies by contractor and the type of work, but a 5 to 10-year setting is common.
Additionally, some contractors offer after-sales service separate from the warranty, so be sure to confirm 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 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 obtain estimates from multiple contractors.
Even for the same repair, the construction costs may vary by contractor, 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 a lower cost, 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 if 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 issues such as miscommunication with external contractors.
Additionally, 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 when something happens is one of the reasons why companies that perform in-house construction are recommended!
About Kakeru Koumuten Co., Ltd.
Kakeru Koumuten Co., Ltd. specializes in roofing, exterior wall work, and scaffolding work with complete in-house construction for exterior renovations.
Since we can assemble temporary scaffolding and perform 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 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 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 Ota-ku, Tokyo
Ikegami, Ota-ku / Ishikawacho, Ota-ku / Unoki, Ota-ku / Omori Kita, Ota-ku / Omori Naka, Ota-ku / Omori Nishi, Ota-ku / Omori Higashi, Ota-ku / Omori Honcho, Ota-ku / Omori Minami, Ota-ku / Kamata Honcho, Ota-ku / Kamata, Ota-ku / Kami Ikedai, Ota-ku / Kita Kojiya, Ota-ku / Kita Chitose, Ota-ku / Kita Magome, Ota-ku / Kita Reimachi, Ota-ku / Kuga Hara, Ota-ku / Keihinjima, Ota-ku / Sanno, Ota-ku / Shimomaruko, Ota-ku / Showajima, Ota-ku / Shin Kamata, Ota-ku / Jonanjima, Ota-ku / Tamagawa, Ota-ku / Chidori, Ota-ku / Chuo, Ota-ku / Denenchofu Honcho, Ota-ku / Denenchofu Minami, Ota-ku / Denenchofu, Ota-ku / Tokai, Ota-ku / Naka Ikegami, Ota-ku / Nakamarugome, Ota-ku / Naka Rokugo, Ota-ku / Nishi Kamata, Ota-ku / Nishi Kojiya, Ota-ku / Nishi Magome, Ota-ku / Nishi Reimachi, Ota-ku / Nishi Rokugo, Ota-ku / Haginaka, Ota-ku / Haneda Asahicho, Ota-ku / Haneda Airport, Ota-ku / Haneda, Ota-ku / Higashi Kamata, Ota-ku / Higashi Kojiya, Ota-ku / Higashi Magome, Ota-ku / Higashi Reimachi, Ota-ku / Higashi Yaguchi, Ota-ku / Higashi Yukigaya, Ota-ku / Higashi Rokugo, Ota-ku / Furusato no Hamabe Park, Ota-ku / Heiwajima, Ota-ku / Heiwa no Mori Park, Ota-ku / Hon Haneda, Ota-ku / Minami Kamata, Ota-ku / Minami Kuga Hara, Ota-ku / Minami Chitose, Ota-ku / Minami Magome, Ota-ku / Minami Yukigaya, Ota-ku / Minami Rokugo, Ota-ku / Yaguchi, Ota-ku / Yukigaya Otsuka-cho, Ota-ku / Reiwa Island, Ota-ku
Possible Subsidies and Grants in Ota-ku, Tokyo
The following subsidies may be available in Ota-ku, Tokyo.
“Long-term Excellent Housing Renovation Promotion Project”
1. Subsidy Rate:
One-third of eligible expenses
2. Subsidy Limit Amount:
Evaluation Standard Type (in cases where a certain level of performance improvement is recognized):800,000 yen/unit
Certified Long-term Excellent Housing Type (in cases where certification for long-term excellent housing (renovation) is obtained):1,600,000 yen/unit
※If renovation work for multi-generational living is carried out, an additional 500,000 yen will be added to the above amounts for young families, child-rearing households, or buyers of existing homes implementing renovation work.
3. Requirements for Receiving Subsidies:
Ensuring Living Space: At least one floor area (excluding stair parts) 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 Maintenance and Preservation Plan: For the maintenance and preservation period (30 years or more), the contents required by the evaluation standards must be established as a maintenance and preservation plan.
Contents of Renovation Work: It is required that the renovated housing complies with the following performance items.
| 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-saving 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, etc. (for apartment buildings only) | Barrier-free design | Optional |
| Variability (for condominiums only) | Facilitates changes to the layout in the future | Optional |
4. Other Requirements:
Renovation work for areas pointed out in the inspection includes exterior wall and roof painting, exterior wall and roof replacement, rain gutter replacement, etc.
Implementation of Inspection: A current condition inspection by a specialist must be conducted before starting renovation work.
Creation of Maintenance Plan and Renovation 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.
Existing Housing Insulation Renovation Support Project
Overview of the System and Target Construction Categories
System Name: Existing Housing Insulation Renovation Support Project (Ministry of the Environment Subsidy, executed by the Hokkaido Environmental Foundation)
This is a format where you can choose either one of the plans: “Total Insulation” for insulating the entire house or “Living Room Only Insulation” focusing on insulating the windows of the living room.
Eligible Participants
Single-family homes: Individual owners or those who plan to own in the future
Condominiums (for sale):
Individual application: Owner or representative of the management association
Overall application: Representative of the management association or a representative composed of owners of the entire building, etc.
Subsidy Amount
Subsidy Rate: Up to 1/3 of 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, including high-performance building materials (insulation, windows, glass, etc.), and it is required that energy-saving effects are expected to be over 15%.
Insulation only for the living room requires that “all windows in the living room must be renovated,” and the methods eligible are “roof overlay (cover method),” “inner windows,” and “outer window replacement.”
For detailed conditions and procedures, please check this website.
Tokyo Ota-ku “Housing Renovation Subsidy Program”
Eligible Applicants
The applicant must be a resident of the ward and continuously reside in the target housing (from January 1, 2025, to the date of grant decision) Ota City Official Website+1
Child-rearing households (those living with or supporting children under junior high school age / provisional applications are also accepted during pregnancy, with full applications after birth confirmation) may also be eligible
Requirements (Conditions for Grant Eligibility)
The contractor for the work must be a small or medium-sized business with its headquarters in Ota City
There must be a personal burden exceeding the grant amount (the same applies when combined with other grants)
Eligible construction works must fall under the following categories A and B (both must be over 100,000 yen excluding tax)
Category A: Quality of life improvement / Decarbonization measures / Circular economy measures / Earthquake resistance construction / Asbestos removal work
Category B: Construction that accommodates diverse lifestyles such as telework and child-rearing
Grant Rate and Subsidy Amount
In Ota City, Tokyo’s “Housing Renovation Grant Program,” the grant rate and subsidy limits are set against the construction costs.
First, for construction works that fall under Category A, 10% of the construction cost is eligible for the grant. The limit is 200,000 yen for general construction and earthquake resistance work, and 300,000 yen for asbestos removal work.
On the other hand, for construction works that fall under Category B, the grant rate is also 10% of the construction cost, with a limit of 200,000 yen. However, if combined with other grant systems, the grant rate drops to 5%, and the limit is reduced to 100,000 yen.
Leave your exterior wall cover work to Kakeru Koumuten Co., Ltd., the exterior renovation specialist!
This concludes the information about the exterior wall overlay (cover method).
The exterior renovation that significantly improves insulation and achieves a stylish look like a new building is 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 overlay 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!
We carry out everything from temporary scaffolding work to roof work and exterior wall renovation work completely in-house. We are confident that we will not be outdone in terms of cost, quality, and efficiency compared to other companies in exterior work!
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.
・Trust Kakeru Koumuten for exterior renovations in Ota-ku, Tokyo!
・Trust Kakeru Koumuten for roof renovations in Ota-ku, Tokyo!
・Trust Kakeru Koumuten for exterior wall painting in Ota-ku, Tokyo!
・Trust Kakeru Koumuten for rain gutter repair and cleaning in Ota-ku, Tokyo!
・Trust Kakeru Koumuten for solar panel installation in Ota-ku, Tokyo!
・Trust Kakeru Koumuten for exterior wall cleaning in Ota-ku, Tokyo!
・Trust Kakeru Koumuten for waterproofing work in Ota-ku, Tokyo!
・Trust Kakeru Koumuten for leak repairs in Ota-ku, Tokyo!
・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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