Leave the repairs and renovations of condominiums and apartments in Nakano-ku, Tokyo to Kakeru Koumuten Co., Ltd.!
If you are looking for
large-scale repair contractors in Nakano-ku, Tokyo,
come to Kakeru Koumuten Co., Ltd.
Kakeru Koumuten Co., Ltd. is a complete in-house construction company capable of handling everything from temporary scaffolding installation to roof work, waterproofing, and exterior painting.
We have undertaken numerous large-scale repairs and exterior renovations for apartments, condominiums, and commercial facilities in Nakano-ku, Tokyo.
“Subsidies and costs available for large-scale repairs in Nakano-ku”
“How to choose a large-scale repair contractor in Nakano-ku”
“Reasons why Kakeru Koumuten Co., Ltd. is chosen in Nakano-ku”
These topics will definitely be helpful for owners and management associations considering repairs or exterior renovations for their apartments and condominiums, so please take a look!
To conclude, the most important thing when considering large-scale repairs is
“multiple estimates”!
Let’s get at least 3 estimates from large-scale repair companies that cover Nakano-ku!
Reasons why Kakeru Koumuten Co., Ltd. is chosen for large-scale repairs in Nakano-ku, Tokyo
One reason why we are entrusted with large-scale repairs in Nakano-ku is that
“Our unique approach to large-scale repair work that cannot be imitated by other companies”
, which has received high praise from many customers.
“costs,” “quality,” and “plans” for exterior renovations of apartments, condominiums, and commercial facilities in Nakano-ku, Tokyo,
1. Equipment specialized for exterior renovations
At Kakeru Koumuten Co., Ltd., we have organized the following warehouses and material storage areas to provide low-cost, high-quality exterior wall painting and waterproofing work for large-scale renovations.
We have established 5 bases centered around Yokohama City for material storage and showrooms.
In-house Scaffolding Materials
We own the scaffolding materials necessary for temporary scaffolding required for large-scale renovations, allowing us to assemble scaffolding in-house.
By performing scaffolding work with our own scaffolding team instead of outsourcing, we can cut costs on scaffolding work and provide quick and flexible responses.
We have approximately enough scaffolding materials for 100 single-family homes!
Storage of Materials in Our Large Warehouse
We store paints and base repair materials used for exterior renovations.
By ordering a large quantity of materials at once, we can procure materials at a lower cost!
Additionally, we always have stock available, enabling us to provide swift responses in emergencies!
In-house Waste Separation
In large-scale renovations, various waste materials such as leftover paint, metal, and wood are generated.
While most contractors dispose of them all together, by sorting and recycling waste materials, significant cost reductions on waste disposal can be achieved.
Exterior Renovation Dedicated Showroom
In the showroom, not only can you have meetings, but you can also
check actual samples and colors of exterior materials.
You can also perform color simulations for exterior wall painting and check thermal insulation properties using a thermal insulation testing machine!
2. Cost Reduction through In-House Management and Construction
One of Kakeru Koumuten’s major strengths is our in-house management and construction.
From inquiry to project completion, everything is managed by Kakeru Koumuten in a consistent system, allowing us to keep costs down while providing high-quality large-scale repairs.
Additionally, one representative will handle everything from the estimate to the completion of the work.
Since the person in charge does not change, whether it’s the sales representative or the construction management representative, smooth communication is possible.
We can fully handle everything from temporary scaffolding installation to exterior wall painting, substrate repair, waterproofing work, and tile repairs with our own staff!
Qualified professionals with specialized knowledge and experience will conduct inspections and actual construction for each process!
3. Various Permits and Skilled Workers
We have obtained construction industry permits and permits for industrial waste collection and transportation!
We also have nationally certified sheet metal workers and painting technicians on staff, giving us confidence in our construction techniques.
We are capable of handling large-scale roofing projects for factories and other facilities!
We also have qualified asbestos supervisors and asbestos surveyors on staff, allowing us to handle asbestos-containing roofing materials and conduct preliminary surveys.
4. Warranty and Aftercare
Most large-scale repair works come with a guarantee for almost all types of work, including “painting work,” “substrate repair work,” and “waterproofing work”!
Aftercare maintenance is available every year, and we send out notification DM each year.
5. Flexible and Prompt Response
Our company is equipped to handle various troubles and situations related to apartments and condominiums.
We can also address exterior walls and rooftops that cannot be checked from high places by utilizing drones!
During rain leak investigations, we can use a thermal imaging camera to help identify the cause of leaks!
We will respond according to your wishes.
We also accept emergency measures for sudden rain leaks!
We will promptly respond to urgent requests or emergencies!
6. Human Resource Development
Our staff creates various models to improve their skills and conducts practical training.
Since different processing and techniques are required depending on the site, we regularly provide skill enhancement education to ensure that each staff member can respond appropriately.
We also educate on points to be careful about and areas to check during each stage of large-scale repair work.
7. Consideration for Residents and Neighbors
During large-scale repair work, we not only notify residents and visit neighbors to greet and explain the work, but we also install bulletin boards at entrances to display the schedule and announcements!
Furthermore, we ensure that the manners of visitors are well-educated to minimize any inconvenience to residents and neighbors.
8. Strict Quality Control
Each stage is inspected by a responsible person, and detailed construction photos are taken.
We use film thickness testing equipment and check sheets during inspections to ensure that nothing is overlooked.
When it comes to exterior wall painting and waterproofing work, we confirm the number of used paint cans to ensure that the specified amount of paint is used, and we order paint in-house to prevent construction defects in advance.
Of course, we also take photos of used paint and report them accordingly.
9. Exterior Wall Painting Color Simulation
9-1 Self Color Simulation
The simulations created by our company can be done using actual photos of your apartment or building!
You can also perform the simulation on your smartphone or computer.
By simulating and then applying two-tone colors or changing the image, we hope to help enhance the stylish appearance and increase occupancy rates!
Of course, we can also arrange for paint samples to confirm the actual colors.
9-2 Confirm Actual Colors with Test Painting!
You can order samples of the paint you are considering and perform test painting on your exterior walls.
By conducting a test painting, you can confirm the actual color and sheen!
9-3 Exterior Renovation Simulation
We can also provide exterior simulations for apartments and condominiums as follows!
・Exterior wall color simulation (two-tone colors are possible)
・Simulation for when metal siding is applied
・Simulation using accent materials like cornices and louvers
・Simulation for roof painting and roof replacement work is also possible
With the exterior renovation simulation, you can significantly reduce the risk of failure in changing the image!
We hope that renovating the appearance of your apartment or condominium will help increase occupancy rates.
Subsidies and Grants That May Be Applicable for Large-Scale Repairs in Nakano-ku, Tokyo
In Nakano-ku, Tokyo, there are potential subsidies available when carrying out renovation work on apartments and condominiums!
For more details, please contact our company or your local government! (As of June 2026)
Condominium Longevity Promotion Tax System (Special Measures for Property Tax)
There is a system that reduces property tax when large-scale repairs are made to condominiums.
◎ For more details, click here↓
Property tax is reduced when large-scale repairs are made to condominiums! (PDF)
Is your condominium being regularly repaired? (PDF)
Tokyo Condominium Improvement Work Subsidy System
The Tokyo Metropolitan Government promotes the proper maintenance and management of condominiums by providing subsidies (interest subsidies) in collaboration with the Japan Housing Finance Agency for management associations that plan improvements and repairs, such as exterior wall painting of common areas, rooftop waterproofing, and barrier-free renovations.
Additionally, installation work for solar power generation equipment is also eligible for financing.
◎ For more details, click here↓
Subsidies for repairs to condominiums
Japan Housing Finance Agency
FY 2026 Subsidy Project for Insulation and Renewable Energy Promotion in Rental Housing
The Tokyo Metropolitan Government is promoting a project to provide concentrated support to rental housing owners who implement insulation renovations that contribute to tenant health, soundproofing, and crime prevention, as well as supporting expenses for introducing renewable energy power when combining solar power generation and low-voltage bulk electricity procurement.
◎ For more details, click here↓
Announcement of the start of the insulation and renewable energy promotion project for rental housing
FY 2026 Rental Housing Insulation and Renewable Energy Promotion Project
FY 2026 Renovation Cost Subsidy System [Special Nursing Homes, etc.]
The Tokyo Metropolitan Government provides support for renovations of elderly care facilities.
◎ For more details, click here↓
Explanation video on renovation cost subsidies for special nursing homes, etc.
【Nakano-ku】Subsidies for Seismic Renovations of Non-Wooden Houses / Subsidies for Seismic Diagnosis of Non-Wooden Houses
Nakano-ku provides partial subsidies for the costs associated with seismic retrofitting for non-wooden houses that were newly built or expanded before May 31, 1981, and diagnosed as having insufficient seismic resistance.
Additionally, costs related to the seismic diagnosis of non-wooden houses are subsidized up to a maximum of 7.65 million yen.
◎For more details, click here↓
About the Subsidy System for Seismic Renovation of Non-Wooden Houses
Subsidy System for Seismic Renovation of Non-Wooden Houses (PDF)
About the Subsidy for Seismic Diagnosis of Non-Wooden Houses
Support for Seismic Diagnosis of Non-Wooden Houses (PDF)
Examples of Costs for Major Repairs
This is an example of costs for each repair work!
（度合いにより変動します）
（度合いにより変動します）
Resin Mortar
(Varies depending on the degree)
(Varies depending on the degree)
※Costs and warranty periods vary depending on the shape, quantity, condition of the substrate, and type of materials.
If you would like a detailed estimate, please feel free to contact us!
Estimates are completely free of charge.
Customer Feedback
Case Study of Exterior Renovation Work on a Mixed-Use Building
| Construction Details |
| Partial replacement of damaged tiles Painting of ancillary parts (pipes, water drainage) Roof waterproofing work (urethane waterproofing) Exterior wall tile waterproofing (Seven S) Sealing work around sashes Repair of exterior wall tile mortar joints Removal of ivy |
| New Materials Used |
| Exterior wall tiles: Kunishiro tiles Painting of ancillary parts: Radical silicone paint Roof waterproofing: High-strength urethane (Sarasene A) Exterior wall tile waterproofing: Seven S |
| Price Range |
| 4,000,000〜4,100,000 yen |
| Construction Period |
| 45 days |
| Progress Leading to Construction |
| Due to leaks occurring from several areas such as the exterior walls and the roof, we proposed waterproofing for the entire exterior. Seven S is a clear waterproofing material for tile exterior walls, and while the cost is somewhat high, its waterproofing performance is excellent. Therefore, if leaks are occurring from several areas of the exterior wall, it is a recommended waterproofing material. |
How to Choose a Large-Scale Renovation Contractor
There are many large-scale renovation contractors that cover Nakano-ku, Tokyo, and you may be unsure which one to choose.
For this reason, when requesting renovations for apartments, condominiums, and buildings, be sure to check the following four points:
● Extensive experience in large-scale renovations
● Confirm the presence of warranties and aftercare services
● Obtain estimates from multiple contractors (at least three)
● Verify if they are self-managed
By confirming the above four points, you will be able to choose a reliable contractor.
Extensive Experience in Large-Scale Renovations
Large-scale renovation contractors often have websites that showcase their exterior remodeling achievements.
Additionally, if they provide detailed explanations of the repair work with photos, it can offer peace of mind as a reference when you actually request repairs.
If you are worried about whether the contractor you are about to request will respond properly, choose a contractor with extensive experience in large-scale renovations.
It is also effective to refer to reviews on Google and review sites when looking for skylight installation contractors!
If there are many negative reviews or no reviews at all, it may be wise to refrain from requesting their services.
Large-scale repair work involves not only the construction itself but also the potential for conflicts with residents and nearby neighbors. Therefore, it is necessary to prevent troubles in advance by reporting the progress of the work and sharing information about laundry, etc., on bulletin boards.
Kakeru Koumuten Co., Ltd. specializes in exterior work, and we receive many requests for exterior renovations of apartments and condominiums.
Check for warranties and aftercare services
When choosing a large-scale repair company, make sure to check for warranties.
If any issues such as leaks occur after the work is completed, having a leak warranty from the contractor ensures that repairs can be made at no cost, providing peace of mind!
Additionally, companies that offer warranty periods are often confident in their work, making this a key criterion for selecting a contractor!
Warranty periods vary by contractor and the nature of the work, but typically range from 1 to 10 years.
Emergency repairs or partial fixes often do not come with a leak warranty.
Moreover, some contractors offer aftercare services separately from warranties, so be sure to check if the contractor you are considering has warranties and aftercare services.
At Kakeru Koumuten Co., Ltd., we send out annual direct mail for aftercare maintenance, allowing for yearly inspections.
We also provide simple repairs such as partial sealing at no charge.
Obtain estimates from multiple contractors (at least 3 companies)
When requesting large-scale repairs, obtain estimates from multiple contractors.
It is important to obtain estimates from at least three companies and compare their estimates and reports!
Even for the same work, repair costs can vary by contractor, as well as warranties and aftercare services.
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 cost but also
“the items in the estimate”
“the methods and materials for substrate repair and exterior wall painting”
“confirmation of the process”
and make detailed comparisons for your judgment! If the quality of the auxiliary materials is low or if steps are skipped, costs can be reduced, so avoid making decisions based solely on price!
Especially regarding substrate repair work, which may not be obvious from the exterior, be sure to check whether the repair method is appropriate for the condition of the substrate!
Confirm if it is managed in-house
Large-scale renovation work includes various tasks such as “substrate repair work,” “exterior wall painting,” “waterproofing work,” and “pipe replacement”!
The plan details will vary depending on the actual state of deterioration and the customer’s wishes.
If a contractor completely outsources to subcontractors, they may lack knowledge and experience, leading to proposals for repairs in the wrong areas or unnecessary work.
This can result in additional time and costs as you will need to investigate and then request subcontractors.
By having knowledge and experience and managing in-house, responsible construction can be carried out while keeping costs down.
Additionally, one of the drawbacks of contractors that outsource is that if any trouble occurs during construction, their response may be delayed.
It is safer to avoid companies that do not have direct meetings with customers managing the construction.
Kakeru Koumuten Co., Ltd. performs everything from temporary scaffolding installation to exterior wall painting and waterproofing work in-house.
Knowledgeable and experienced personnel will manage the construction!
If you are looking for a large-scale renovation contractor in Nakano-ku, Tokyo, please contact Kakeru Koumuten
Our company handles many exterior wall renovations for condominiums and apartments in Nakano-ku, Tokyo. We are happy to assist not only with large-scale renovation work but also with partial repairs and rain leak repairs.
In urgent cases such as rain leaks, we may also be able to provide emergency measures, so please feel free to consult with us!
“I want it to last long with one renovation”, “I want to keep costs down as much as possible”, “I want to improve insulation performance because the indoors are hot”, we will provide the best solutions for your specific requests and future repair plans.
We carry out everything from temporary scaffolding work to roofing and exterior wall painting completely in-house.
We are confident that we will not be outdone in terms of cost, quality, and organization compared to other companies for exterior work!
We welcome competitive estimates as we are confident in our work!
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and all of Tokyo.
List of Areas in Nakano-ku, Tokyo
Arai, Nakano-ku / Ekoda, Nakano-ku / Ebetsu-cho, Nakano-ku / Kamisaginomiya, Nakano-ku / Kamitakada, Nakano-ku / Saginomiya, Nakano-ku / Shirasagi, Nakano-ku / Chuo, Nakano-ku / Nakano, Nakano-ku / Numabukuro, Nakano-ku / Nogata, Nakano-ku / Higashi-Nakano, Nakano-ku / Honcho, Nakano-ku / Matsugaoka, Nakano-ku / Maruyama, Nakano-ku / Minamidai, Nakano-ku / Yamato-cho, Nakano-ku / Yayoicho, Nakano-ku / Wakamiya
・When should large-scale renovations be carried out? An explanation of the optimal timing and the risks of postponement!
・Estimates are essential for large-scale renovations! Key points for comparison and precautions!
・5 common troubles in large-scale renovations of condominiums! A thorough explanation of causes and prevention measures!
・What is waterproofing work in large-scale renovations? A thorough explanation of roles, signs of deterioration, and precautions!
・Insufficient funds for large-scale renovations… An explanation of how to deal with funding shortages and preparations you can do right now!
・What is the important base repair in large-scale renovations? A thorough explanation of the reasons needed, signs of deterioration, and types of work!
・What is sealing work in large-scale renovations? An introduction to roles, methods, and tips for avoiding mistakes!
・What is the important tile repair in large-scale renovations? An explanation of signs of deterioration, types of work, and cost averages!
・What is the important exterior wall painting in large-scale renovations? A thorough explanation of necessity, signs of deterioration, and cost averages!
・For exterior renovations in Nakano-ku, Tokyo, trust Kakeru Koumuten Co., Ltd.!
・For roof renovations in Nakano-ku, Tokyo, trust Kakeru Koumuten Co., Ltd.!
・For exterior wall painting in Nakano-ku, Tokyo, trust Kakeru Koumuten Co., Ltd.!
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株式会社翔工務店へ
株式会社翔工務店は平均年齢２０代後半の若い会社ですが、技術はどこにも負けていません。
いちばんの強みは、足場工事、屋根工事、塗装工事とすべて自社で行えること。一般には分業されるこの業界にあって、一式で頼めるので管理に手間がかからず、コストも抑えることが出来ます。何より、トラブルがあればすぐにかけつけます！
自信をもって、宣言できます。私たちは、神奈川で一番若くて親切なリフォーム屋です！
