目次
- 1 If you are looking for a large-scale renovation contractor in Ome City, Tokyo, come to Kakeru Koumuten
- 2 Reasons why Kakeru Koumuten is chosen for large-scale renovations in Ome City, Tokyo
- 2.1 1. Equipment specialized for exterior renovations
- 2.2 2. Cost Reduction through In-House Comprehensive Management and Construction
- 2.3 3. Various Permits and Skilled Workers
- 2.4 4. Warranty and Aftercare
- 2.5 5. Flexible and Prompt Response
- 2.6 6. Human Resource Development
- 2.7 7. Consideration for Residents and Neighbors
- 2.8 8. Strict Quality Control
- 2.9 9. Exterior Wall Painting Color Simulation
- 3 Subsidies and Grants That May Be Applicable for Large-Scale Repairs in Aomi City, Tokyo
- 3.1 Condominium Long-Term Life Promotion Tax System (Special Measures for Fixed Property Tax)
- 3.2 Tokyo Metropolitan Condominium Improvement Construction Subsidy System
- 3.3 FY 2026 Subsidy Project for Insulation and Renewable Energy Promotion in Rental Housing
- 3.4 FY 2026 Renovation Cost Subsidy System [Special Nursing Homes, etc.]
- 4 Examples of Costs for Large-Scale Repairs
- 5 Customer Feedback
- 6 Case Study of Exterior Renovation Work on a Mixed-Use Building
- 7 How to Choose a Large-Scale Renovation Contractor
- 8 If you are looking for a large-scale renovation contractor in Ome City, Tokyo, please contact Kakeru Koumuten
If you are looking for
a large-scale renovation contractor
in Ome City, Tokyo, come to Kakeru Koumuten
Kakeru Koumuten is a renovation company that can handle everything from temporary scaffolding installation to roofing, waterproofing, and exterior painting
with complete in-house construction capabilities.
We have undertaken numerous large-scale renovations and exterior reforms for apartments, condominiums, and commercial facilities in Ome City, Tokyo.
“Subsidies and costs available for large-scale renovations in Ome City”
“How to choose a large-scale renovation contractor in Ome City”
“Why Kakeru Koumuten is chosen in Ome City”
These topics will be very helpful for owners and management associations
considering repairs or exterior renovations for apartments and condominiums, so please take a look!
To conclude, the most important thing when considering a large-scale renovation is
“multiple estimates”!
Let’s obtain at least three estimates from large-scale renovation companies that cover Ome City!
Reasons why Kakeru Koumuten is chosen for large-scale renovations in Ome City, Tokyo

One reason why we can be entrusted with large-scale renovations in Ome City is that
“the fact that Kakeru Koumuten is based in Tokyo” is one reason, but
“our unique approach to large-scale renovation work that cannot be imitated by other companies”
has received high praise from many customers.
“cost, quality, and plans” are our absolute strengths,
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!
Material Storage 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 purchase materials at a lower cost!
Additionally, we always have stock available, enabling us to provide swift responses in emergencies!
In-house Waste Separation
During large-scale renovations, various waste materials such as leftover paint, metal, and wood are generated.
Most contractors dispose of them all together, but 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 hold meetings, but you can also
check actual samples and colors of exterior materials.
Color simulations for exterior wall painting and heat insulation tests using heat insulation testing equipment are also available!
2. Cost Reduction through In-House Comprehensive Management and Construction

One of Kakeru Koumuten’s major strengths is our in-house management and construction.
From the initial inquiry to project completion, everything is managed by Kakeru Koumuten, allowing us to keep costs down while providing high-quality large-scale repairs.
Additionally, one representative will handle everything from the estimate to project completion.
Since the same person will manage sales and construction, smooth communication is ensured.
We can handle everything from temporary scaffolding installation to exterior wall painting, substrate repairs, waterproofing, and tile repairs with complete in-house construction!
Our specialists with 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 specialists on staff, so we are confident in our construction techniques.
We can also handle large-scale roofing projects for factories and other facilities!
We 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 guarantees 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 utilize drones to inspect exterior walls and rooftops that cannot be checked from high places!
During rain leak investigations, we can use a thermal imaging camera to help identify the cause of the leaks!
We will respond according to your wishes.
We also accept emergency measures for sudden rain leaks!
We will respond quickly 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 at each site, we regularly provide skill enhancement education to ensure that each staff member can respond appropriately.
We also educate on points to pay attention to and areas to check at each stage of large-scale repair work.
7. Consideration for Residents and Neighbors

During large-scale repair work, we not only notify residents and greet neighbors, but also install bulletin boards at entrances to display project schedules and announcements!
Additionally, we ensure that the manners of visitors are thoroughly 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 there are no oversights.
When conducting exterior wall painting or waterproofing work, we confirm the number of used paint cans to ensure the specified amount of paint is used, and we prevent construction defects by ordering paint in-house.
Of course, we also take photos of the 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 photos of your actual apartment or building!
You can also perform simulations 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 gloss!
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 also possible)
・Simulation for when metal siding is applied
・Simulation using accent materials such as cornices and louvers
・Simulations for roof painting and roof replacement work are 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 Aomi City, Tokyo
In Aomi City, 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 Long-Term Life Promotion Tax System (Special Measures for Fixed Property Tax)
There is a system that reduces fixed property tax when large-scale repairs are made to condominiums.
◎ For more details, click here↓
Large-scale repairs to condominiums will reduce fixed property tax! (PDF)
Is your condominium undergoing regular repairs? (PDF)
Tokyo Metropolitan Condominium Improvement Construction Subsidy System
The Tokyo Metropolitan Government promotes proper maintenance and management of condominiums by providing subsidies (interest subsidies) in collaboration with the Japan Housing Finance Agency for management associations that plan and carry out improvements and repairs, such as exterior wall painting of common areas and rooftop waterproofing, as well as barrier-free modifications.
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 that intensively supports rental housing owners who implement insulation renovations that contribute to tenant health, soundproofing, and crime prevention, as well as providing support for expenses when introducing renewable energy power through a combination of 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 Insulation and Renewable Energy Promotion Project for Rental Housing
FY 2026 Renovation Cost Subsidy System [Special Nursing Homes, etc.]
The Tokyo Metropolitan Government provides support for renovations of elderly facilities.
◎ For more details, click here↓
Explanation Video on Renovation Cost Subsidies for Special Nursing Homes, etc.
Examples of Costs for Large-Scale Repairs
These are examples of costs for repair work!
(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 shape, quantity, substrate condition, 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 cut-off) 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 |
| Process 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 wall. Seven S is a clear waterproofing material for tile exterior walls. Although the cost is somewhat higher, its high waterproofing performance makes it a recommended waterproofing material when leaks are occurring from multiple areas of the exterior wall. |
How to Choose a Large-Scale Renovation Contractor
There are many large-scale renovation contractors available in Ome City, Tokyo, and it can be confusing to decide which one to choose.
Therefore, 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 showcasing their track record in exterior renovations.
Additionally, if they provide detailed explanations of repair work with photos, it offers reassurance as a reference when you actually request repairs.
If you are concerned about whether the contractor you are about to hire will respond properly, choose one with extensive experience in large-scale renovations.
It can also be 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 making a request.
Large-scale repair work involves not only the construction itself but also the potential for troubles with residents and neighboring residents. Therefore, it is necessary to prevent issues in advance by reporting the progress of the work and posting 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 after-service availability
When choosing a large-scale repair company, make sure to check for warranties.
If any issues such as leaks occur after the construction, having a leak warranty from the contractor ensures that repairs can be made free of charge, providing peace of mind!
Additionally, companies that offer warranty periods can be seen as having confidence in their work, making it a 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 repairs often do not come with a leak warranty.
Furthermore, some contractors offer after-service separate from warranties, so be sure to check if the contractor you are considering has warranties and after-service.
Kakeru Koumuten Co., Ltd. sends out annual direct mail as part of our after-service, allowing for yearly inspections.
We provide free support for simple repairs such as partial sealing.
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 type of work, repair costs may vary between contractors, as well as warranties and after-service offerings.
Additionally, obtaining multiple estimates makes it easier to negotiate prices.
To request your desired repair contractor at a lower 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 work and exterior wall painting”
“confirmation of the process”
and make detailed comparisons! If the rank of 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, since it is not easily visible from the exterior, be sure to check whether the repair method is appropriate for the condition of the substrate!
Check if it is managed in-house
Large-scale renovation work includes various types of construction 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 a subcontractor.
By having knowledge and experience and managing in-house, responsible construction can be carried out while keeping costs down.
Additionally, one of the disadvantages of contractors that outsource is that if any trouble occurs during construction, their response may be delayed.
It is safer to avoid having a company that has not actually met with the customer manage the construction.
Kakeru Koumuten Co., Ltd. is a company that conducts 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 Ome City, Tokyo, please contact Kakeru Koumuten
Our company has handled many exterior wall renovations for condominiums and apartments in Ome City, Tokyo. We are happy to assist not only with large-scale renovation work but also with partial repairs and leak repairs.
In urgent cases such as leaks, we may also be able to provide emergency measures, so please feel free to consult with us!
Whether you want to “make it last long with one renovation“, “keep costs down as much as possible“, or “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 in 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 Ome City, Tokyo
Aomi City, Akase-cho / Aomi City, Imai / Aomi City, Imadera / Aomi City, Ura-yado-cho / Aomi City, Oyanagi-cho / Aomi City, Kozogi / Aomi City, Katsunuma / Aomi City, Kabe-cho / Aomi City, Kamimachi / Aomi City, Kinoshita / Aomi City, Kurosawa / Aomi City, Komaki-cho / Aomi City, Sawai / Aomi City, Shiofune / Aomi City, Shinmachi / Aomi City, Suehiro-cho / Aomi City, Sume-cho / Aomi City, Daimon / Aomi City, Takinoue-cho / Aomi City, Senkase-cho / Aomi City, Tomioka / Aomi City, Tomoda-cho / Aomi City, Nakacho / Aomi City, Nagabuchi / Aomi City, Naruki / Aomi City, Nishibun-cho / Aomi City, Negabu / Aomi City, Nogami-cho / Aomi City, Umegou / Aomi City, Hatanaka / Aomi City, Higashi-Aomi / Aomi City, Hinatawada / Aomi City, Fukiage / Aomi City, Fujihashi / Aomi City, Futamatao / Aomi City, Honmachi / Aomi City, Mitake / Aomi City, Mitake-san / Aomi City, Mitake Honmachi / Aomi City, Morishita-cho / Aomi City, Morioka-cho / Aomi City, Tani-no / Aomi City, Yuzuki-cho / Aomi City, Wada-cho
・When should large-scale renovations be carried out? An explanation of the optimal timing and risks of postponement!
・Estimates are essential when carrying out large-scale renovations! Key points for comparison and precautions!
・Five 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 its role, 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 surface repair in large-scale renovations? A thorough explanation of its necessity, signs of deterioration, and types of work!
・What is sealing work in large-scale renovations? An introduction to its role, methods, and tips for avoiding mistakes!
・What is important tile repair in large-scale renovations? An explanation of signs of deterioration, types of work, and cost averages!
・What is important exterior wall painting in large-scale renovations? A thorough explanation of its necessity, signs of deterioration, and cost averages!
・For exterior renovations in Aomi City, Tokyo, trust Kakeru Koumuten Co., Ltd.!
・For roof renovations in Aoba-ku, Yokohama, trust Kakeru Koumuten Co., Ltd.!
・For exterior painting in Aoba-ku, Yokohama, trust Kakeru Koumuten Co., Ltd.!
Consultations via LINE are also very welcome◎
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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!




