If you are looking for an exterior wall siding contractor in Suginami-ku, Tokyo, contact Kakeru Koumuten Co., Ltd.
Kakeru Koumuten Co., Ltd. is based in Tokyo and has handled many exterior wall cover projects!
The three major benefits of exterior wall cover work are as follows!
“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, precautions, and costs!
For customers considering exterior wall siding in Suginami-ku, Tokyo, this will definitely be helpful,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 Suginami-ku!
Estimates and consultations are free!
We welcome multiple estimates!
What is the exterior wall cover method?
We will explain the recommended points and precautions of the exterior wall cover method in detail!
The exterior wall cover method is a construction process where a new exterior wall is installed over the existing exterior wall.
It is possible to overlay various types of walls, such as ALC walls, ceramic siding, and mortar walls.
The materials used for the exterior wall cover method are generally lightweight and durable metal siding.
Although 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 popular?
Here are the “five points” that make Kakeru Koumuten Co., Ltd.’s exterior wall cover method well-received!
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 another advantage!
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.
Moreover, by installing furring strips before the metal siding installation to create a ventilation layer, the insulation performance is greatly 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, providing a high level of reassurance for long-term exterior renovations!
Point 4 Improved Waterproofing!!
With the exterior materials being double-layered, the waterproofing is significantly enhanced to prevent rainwater intrusion.
Applying waterproof paper before installation further increases the waterproofing effectiveness!
Point 5 Improved Aesthetic Appeal!!
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 your 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 while looking at 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 the exterior wall cover method with metal siding!
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 wide 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 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 concerning, you can request repairs from a specialized repair contractor!
Caution 3 Long construction period
Exterior wall cover work can be considered 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. Since you had several preferred types of metal siding, we have created separate estimates for each! You entrusted us with the “Aiji Industry/SF-Gal Stage Shine” metal siding! |
| Price Range |
| 2,000,000 to 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. Base Adjustment
4. Waterproof Paper Installation (may not be necessary)
5. Installation of Battens
6. Metal Work for Special Parts
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 construction.
It is an estimate for the cost of performing the exterior wall overlay method on a building with a total area of 30 tsubo.
The cost of exterior wall cover construction is 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 attached parts to be painted, the number of windows, and the equipment to be removed or installed.
Please note that this is just a rough estimate, and detailed quotes 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 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 warranties and aftercare
3. Obtain multiple quotes from several contractors (at least three)
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 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 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, confirm whether the proposed siding meets 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 exterior wall and the new exterior wall material using a method called “ventilation method.”
If you do not create a ventilation layer and directly attach it, moisture cannot escape, leading to mold or corrosion, and may cause peeling or 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 will be 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 like foundation water drainage and edge trim will provide peace of mind and help prevent issues.
If there are items of concern not included in the estimate, check the reason for their exclusion!
・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 differ 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 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 specifics of the work, but a 5 to 10 year setting 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 includes a warranty with exterior wall cover work.
We also provide after-maintenance services 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 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 whether the company performs exterior wall cover work in-house
There is a difference in costs between companies that handle in-house construction and those that outsource to external companies, and there is also a higher likelihood of 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 construction company, leading to potential troubles.
Being able to respond immediately in case of any issues 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, all performed 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 Suginami-ku, Tokyo
Suginami-ku Asagaya Minami / Suginami-ku Asagaya Kita / Suginami-ku Amanuma / Suginami-ku Igusa / Suginami-ku Izumi / Suginami-ku Imagawa / Suginami-ku Umezakura / Suginami-ku Eifuku / Suginami-ku Omiya / Suginami-ku Ogikubo / Suginami-ku Kamiigusa / Suginami-ku Kamiyagi / Suginami-ku Kamitakaido / Suginami-ku Kogayama / Suginami-ku Koenji Minami / Suginami-ku Koenji Kita / Suginami-ku Shimizu / Suginami-ku Shimoigusa / Suginami-ku Shimotakaido / Suginami-ku Matsuan / Suginami-ku Zenpukuji / Suginami-ku Takaihodai Higashi / Suginami-ku Takaihodai Nishi / Suginami-ku Narita Higashi / Suginami-ku Narita Nishi / Suginami-ku Nishiogiminami / Suginami-ku Nishiogikita / Suginami-ku Hamadayama / Suginami-ku Hounan / Suginami-ku Horinouchi / Suginami-ku Mototenuma / Suginami-ku Matsunoki / Suginami-ku Minamiogikubo / Suginami-ku Miyamae / Suginami-ku Momoi / Suginami-ku Wada
Possible Subsidies and Grants in Suginami-ku, Tokyo
The following subsidies may be available in Suginami-ku, Tokyo.
“Long-term Excellent Housing Renovation Promotion Project”
1. Subsidy Rate:
1/3 of the eligible expenses
2. Maximum Subsidy Amount:
Evaluation Standard Type (if 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/unit
*If renovation work is carried out for multi-generational living, an additional 500,000 yen will be added to the above amount for young families, child-rearing households, or purchasers of existing homes.
3. Requirements for Receiving Subsidies:
Ensuring Living Space: The floor area of at least one level (excluding stairs) 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.
Establishment of Maintenance and Preservation Plan: For the maintenance and preservation period (30 years or more), the content required by the evaluation criteria must be established as a maintenance and preservation plan.
Content of Renovation Work: It is required that the renovated residence meets 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 Conservation Measures | Insulation of windows, walls, floors, ceilings, and efficiency improvements for water heaters, etc. | Required |
| Ease of Maintenance and Renewal | 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 apartment buildings only) | Facilitates future changes in floor plans | Optional |
4. Other Requirements:
Renovation work for points identified in the inspection includes exterior wall and roof painting, replacement of exterior walls and roofs, and rain gutter replacement.
Implementation of Inspection: Conduct a current condition inspection by a specialist 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 the windows in the living room. Choose one of the two plans.
Eligible Participants
Single-family Homes: Individual owners or those who plan to own in the future.
Apartment Buildings (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 eligible expenses
Maximum Subsidy Amount (per dwelling): Up to 150,000 yen
Eligible Products and Construction Conditions
Eligible items include high-performance building materials registered with the secretariat (such as insulation materials, windows, and glass) that are expected to achieve energy-saving effects of 15% or more.
Insulation only for the living room: It is mandatory to “renovate all windows in the living room,” and the methods eligible include “roof overlay (cover method),” “inner windows,” and “outer window replacement.”
For detailed conditions and procedures, please check this website.
Suginami Ward’s “Eco Housing Promotion Subsidy (Insulation Renovation and Energy-Saving Measures Subsidy)”
Requirements
Eligible Construction: Installation of insulation materials, insulation renovations (replacement of windows, inner windows, outer windows, glass, doors, sliding doors), insulation films, high solar reflectance coatings on exterior walls and roofs, etc., for existing homes that contribute to improving insulation performance.
Application Method: All applications are post-application only (applications are made after the completion of construction and payment).
Eligible Applicants
Residents of Suginami Ward who perform eligible construction on their homes (including owners)
Small and medium-sized enterprises in the ward that introduce energy-saving equipment to buildings (with representatives residing in the ward)
Management associations or managers conducting construction in the common areas of condominiums in the ward
Medical corporations, social welfare corporations, educational corporations, neighborhood associations, community associations, shopping street associations, etc. conducting eligible construction on buildings owned within the ward.
Subsidy Rate and Amount (Upper Limit)
Subsidy Rate:
General insulation renovations (window replacement, insulation materials, etc.): The subsidy amount is fixed and provided based on the equipment and area, not as a percentage
High solar reflectance coating (roof and exterior walls): 20% of the eligible expenses are subsidized
Insulation film: 50% of the eligible expenses (with an upper limit)
Maximum Subsidy Amount:
Total upper limit for insulation renovations (windows, inner windows, outer windows, doors, sliding doors, insulation materials): 300,000 yen
High solar reflectance coating (roof and exterior walls): The upper limit is 150,000 yen
Insulation film: The upper limit is 40,000 yen
Leave your exterior wall cover work to 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 a new build are limited to exterior wall siding work.
While the cost is higher compared to exterior painting, there are various advantages, making it 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 Co., Ltd.!
From temporary scaffolding construction to roof work and exterior wall renovation, we carry out all work with our own staff. We are confident that our costs, quality, and efficiency in exterior construction are unmatched compared to 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 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.
・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 waterproofing work in Aoba-ku, Yokohama, trust Kakeru Koumuten Co., Ltd.!
・For exterior wall cleaning 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 by Kakeru Koumuten Co., Ltd.
・Staff blog and announcements from 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!
