If you are looking for an exterior wall siding contractor in Shou Koumuten, Shinjuku-ku, Tokyo
Kakeru Koumuten Co., Ltd. is based in Tokyo and has handled numerous 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!
This will definitely be useful for customers considering exterior wall siding in Shinjuku-ku, TokyoPlease take a look!
The most important thing to consider when thinking about exterior wall siding is “getting multiple estimates”!
Let’s get at least three estimates from exterior renovation companies that cover Shinjuku-ku!
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 method 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.
While the costs are higher compared to exterior painting, it is a method of exterior renovation 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 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, 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 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 painting, manufacturer warranties are generally not included.
Metal siding comes with solid manufacturer warranties, such as paint film warranties and hole warranties, making it a 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 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“, “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 important points to consider for exterior wall cover work with metal siding?
Next, we will explain the “three important points” to consider 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, which can lead to frequent 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, it is advisable 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 concerning, 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 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 one! You entrusted us with the “Aijii 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 Auxiliary Parts
2. Removal of Equipment
3. Substrate Adjustment
4. Waterproof Paper Installation (may not be necessary)
5. Installation of Battens
6. Metal Work Processing
7. Main Construction
8. Sealing at Various Locations
9. Reinstallation of Equipment
10. Completion
About the Cost of Exterior Wall Covering Work
This is a table of estimated costs for exterior wall cover work.
It serves as a guideline for the costs associated with a 30-tsubo exterior wall overlay (cover method).
The cost of exterior wall cover work is determined by the calculation below.
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 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 additional 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 quotations 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 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 check 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 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 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 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 aligns with your original needs!
・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 wall material using a method called “ventilation method.”
If you do not create a ventilation layer and directly apply it, moisture cannot escape, leading to mold or corrosion, and may result in peeling or lifting of the 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 base water drainage and edge lengths will provide peace of mind and help prevent troubles.
If there are items of concern that are 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 “type of battens,” “siding fasteners,” and “type 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 one of the more expensive 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 typical.
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 their exterior wall cover work.
We also provide after-maintenance services, and we send out annual direct mail, 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.
Even for the same repair work, the costs may vary between contractors, as well as the warranties and after-sales services they offer.
Additionally, obtaining multiple estimates makes it easier to negotiate prices.
To request your desired contractor at the best possible price, obtaining estimates from multiple companies is essential.
When comparing estimates, consider not only the costs but also the plan details, materials, and other specifics!
4. Confirm whether the company performs exterior wall cover work in-house
Companies that handle their own construction versus those that outsource to external companies will have different costs, and there is a higher likelihood of miscommunication and issues arising with external contractors.
Moreover, if problems occur after construction, responses may be delayed, or there may be no dealings with external contractors, leading to further complications.
Being able to respond quickly in case of issues is one of the reasons why companies that perform their own construction are recommended!
About Kakeru Koumuten Co., Ltd.
Kakeru Koumuten Co., Ltd. specializes in roofing, exterior wall work, and scaffolding with completely in-house construction for exterior renovations.
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 reduced 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 Area
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and the entirety of Tokyo.
Click here for inquiries to Kakeru Koumuten Co., Ltd.!
List of Areas in Shinjuku, Tokyo
Aizumicho, Shinjuku-ku / Akagishitamachi, Shinjuku-ku / Akagimotocho, Shinjuku-ku / Agabacho, Shinjuku-ku / Arakicho, Shinjuku-ku / Ichigaya Kagacho, Shinjuku-ku / Ichigaya Kooracho, Shinjuku-ku / Ichigaya Sadobara, Shinjuku-ku / Ichigaya Sainaimachi, Shinjuku-ku / Ichigaya Takashoucho, Shinjuku-ku / Ichigaya Tamachi, Shinjuku-ku / Ichigaya Daicho, Shinjuku-ku / Ichigaya Chonenji, Shinjuku-ku / Ichigaya Nakanomachi, Shinjuku-ku / Ichigaya Hachimancho, Shinjuku-ku / Ichigaya Funakawaramachi, Shinjuku-ku / Ichigaya Motomuramachi, Shinjuku-ku / Ichigaya Yakuoujimachi, Shinjuku-ku / Ichigaya Yanagimachi, Shinjuku-ku / Ichigaya Yamanobumachi, Shinjuku-ku / Iwatomachi, Shinjuku-ku / Enokimachi, Shinjuku-ku / Okubo, Shinjuku-ku / Kaidai-machi, Shinjuku-ku / Kagurakawagashi, Shinjuku-ku / Kagurazaka, Shinjuku-ku / Kasumigaokamachi, Shinjuku-ku / Katamachi, Shinjuku-ku / Kabukicho, Shinjuku-ku / Kamiochiai, Shinjuku-ku / Kawadacho, Shinjuku-ku / Kikui-machi, Shinjuku-ku / Kitashinjuku, Shinjuku-ku / Kitamachi, Shinjuku-ku / Kitayamabushimachi, Shinjuku-ku / Saikucho, Shinjuku-ku / Samoncho, Shinjuku-ku / Shinanocho, Shinjuku-ku / Shimoochiai, Shinjuku-ku / Shimomiya-bicho, Shinjuku-ku / Shiroganecho, Shinjuku-ku / Shinkogawamachi, Shinjuku-ku / Shinjuku, Shinjuku-ku / Suidocho, Shinjuku-ku / Sugacho, Shinjuku-ku / Sumiyoshicho, Shinjuku-ku / Daikyocho, Shinjuku-ku / Takadanobaba, Shinjuku-ku / Tansuicho, Shinjuku-ku / Tsukijimachi, Shinjuku-ku / Tsukudocho, Shinjuku-ku / Chikudo Hachimancho, Shinjuku-ku / Tenjincho, Shinjuku-ku / Tozuka-machi, Shinjuku-ku / Fukuchicho, Shinjuku-ku / Toyama, Shinjuku-ku / Naitocho, Shinjuku-ku / Nakai, Shinjuku-ku / Nakaochiai, Shinjuku-ku / Nakasatocho, Shinjuku-ku / Nakacho, Shinjuku-ku / Nandomachi, Shinjuku-ku / Nishiochiai, Shinjuku-ku / Nishigokencho, Shinjuku-ku / Nishishinjuku, Shinjuku-ku / Nijukicho, Shinjuku-ku / Nishiwaseda, Shinjuku-ku / Babashimocho, Shinjuku-ku / Harikatacho, Shinjuku-ku / Haramachi, Shinjuku-ku / Higashi Enokimachi, Shinjuku-ku / Higashi Gokencho, Shinjuku-ku / Hyakunincho, Shinjuku-ku / Fukurocho, Shinjuku-ku / Funamachi, Shinjuku-ku / Bentencho, Shinjuku-ku / Minami Enokimachi, Shinjuku-ku / Minamimachi, Shinjuku-ku / Minamotocho, Shinjuku-ku / Minami Yamabushimachi, Shinjuku-ku / Yamabukicho, Shinjuku-ku / Yaraicho, Shinjuku-ku / Yokodera-machi, Shinjuku-ku / Yochomachi, Shinjuku-ku / Yotsuya, Shinjuku-ku / Yotsuya Sakamachi, Shinjuku-ku / Yotsuya San’ei-machi, Shinjuku-ku / Yotsuya Honshio-machi, Shinjuku-ku / Wakaba, Shinjuku-ku / Wakamatsu-machi, Shinjuku-ku / Wakamiya-machi, Shinjuku-ku / Waseda Tsurumaki-machi, Shinjuku-ku / Waseda Minamimachi, Shinjuku-ku / Waseda-machi
Possible Subsidies and Grants in Shinjuku, Tokyo
The following subsidies may be available in Shinjuku, Tokyo.
“Long-term Excellent Housing Renovation Promotion Project”
1. Subsidy Rate:
One-third of the 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 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 existing home buyers who implement the renovation work.
3. Requirements for Receiving Subsidies:
Ensuring 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 Maintenance and Preservation Plan: For the maintenance and preservation period (30 years or more), the content required by the evaluation standards must be established as a maintenance and preservation plan.
Content of Renovation Work: The renovated residence must meet 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 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 multi-family residences only) | Facilitates future changes to the floor plan | Optional |
4. Other Requirements:
Renovation work for areas pointed out in the 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 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” 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 of the management association or representatives composed of 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 include high-performance building materials registered with the secretariat (such as insulation materials, windows, and glass), with an expected energy-saving effect of 15% or more.
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.
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 new construction are limited to exterior wall siding work.
While the cost is higher compared to exterior 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 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. in Yokohama!
We carry out everything from temporary scaffolding work to roof construction and exterior wall renovation entirely in-house. We are confident that our costs, quality, and efficiency in exterior work surpass those of other companies!
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 repair 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 by Kakeru Koumuten Co., Ltd.
・Staff blog and announcements from Kakeru Koumuten Co., Ltd.
We welcome inquiries via LINE as well◎
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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!
