目次
- 1 If you are looking for a large-scale renovation contractor in Akishima City, Tokyo, come to Kakeru Koumuten
- 2 Reasons why Kakeru Koumuten is chosen for large-scale renovations in Akishima City, Tokyo
- 2.1 1. Equipment specialized for exterior renovations
- 2.2 2. Cost Reduction through In-House 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 Possible Subsidies and Grants for Large-Scale Renovations in Akishima City, Tokyo
- 3.1 Condominium Long-Term Life Promotion Tax System (Special Measures for Property Tax)
- 3.2 Tokyo Metropolitan Condominium Improvement Grant System
- 3.3 FY 2026 Subsidy Project: Promotion of Insulation and Renewable Energy in Rental Housing
- 3.4 FY 2026 Renovation Cost Subsidy System [Special Nursing Homes, etc.]
- 4 Examples of Costs for Large-Scale Renovations
- 5 Customer Testimonials
- 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 Akishima, Tokyo, please contact Kakeru Koumuten
If you are looking for
a large-scale renovation contractor
in Akishima City, Tokyo, come to Kakeru Koumuten
Kakeru Koumuten is a complete in-house contractor for exterior renovations, capable of handling everything from temporary scaffolding installation to roof work, waterproofing, and exterior painting.
We have undertaken numerous large-scale renovations and exterior reforms for apartments, condominiums, and commercial facilities in Akishima City, Tokyo.
“Subsidies and costs available for large-scale renovations in Akishima City”
“How to choose a large-scale renovation contractor in Akishima City”
“Why Kakeru Koumuten is chosen in Akishima 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 Akishima City!
Reasons why Kakeru Koumuten is chosen for large-scale renovations in Akishima City, Tokyo
One reason we are entrusted with large-scale renovations in Akishima 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” for exterior renovations of apartments, condominiums, and commercial facilities in Akishima City, Tokyo,
1. Equipment specialized for exterior renovations
At Kakeru Koumuten Co., Ltd., we have prepared 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 five bases centered around Yokohama.
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 conducting 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, allowing 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 these materials together, but by sorting and recycling waste materials, significant cost reductions in 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 heat insulation properties using a heat 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 inquiries 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 project completion.
Since the same person will manage sales and construction, 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 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 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 work comes with guarantees for services such as “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 using 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 and 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 pay attention to and areas to check during each phase 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 explain the work, but we also install bulletin boards at entrances to display the work schedule and announcements!
Additionally, we ensure that the manners of all entrants are well-educated to minimize any inconvenience to residents and neighbors.
8. Strict Quality Control
Each phase 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 no inspections are overlooked.
When performing exterior wall painting or 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.
Of course, we will 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 actual photos of your apartment or building!
You can also perform simulations on your smartphone or computer.
By simulating and then applying two-tone colors or making changes in appearance, we hope to help enhance the stylish look 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 conduct test painting on your exterior walls.
By doing test painting, you can confirm the actual color and sheen!
9-3 Exterior Renovation Simulation
Exterior simulations for apartments and condominiums are also possible!
・Exterior wall color simulation (two-tone colors are also 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
The risk of failure in changing the image through exterior renovation simulations can be minimized!
We hope that renovating the appearance of your apartment or condominium will help increase occupancy rates.
Possible Subsidies and Grants for Large-Scale Renovations in Akishima City, Tokyo
In Akishima 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 Property Tax)
There is a system that reduces property tax when large-scale renovations are performed on condominiums.
◎ For more details, click here↓
Property tax is reduced when large-scale renovations are performed on condominiums! (PDF)
Is your condominium being regularly maintained? (PDF)
Tokyo Metropolitan Condominium Improvement Grant System
The Tokyo Metropolitan Government promotes proper maintenance and management of condominiums by providing grants (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, 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 condominium repairs
Japan Housing Finance Agency
FY 2026 Subsidy Project: Promotion of Insulation and Renewable Energy in Rental Housing
The Tokyo Metropolitan Government is promoting a project to support rental housing owners who implement insulation renovations that contribute to tenant health, soundproofing, and security, while also supporting expenses for introducing renewable energy power by 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 facilities.
◎ For more details, click here↓
Explanation video about renovation cost subsidies for special nursing homes, etc.
Examples of Costs for Large-Scale Renovations
These are examples of costs for each renovation project!
| Repair Method | Materials Used | Cost |
| Tile Replacement | Existing Similar Tiles | per piece/2,000 yen to 4,000 yen |
| Repair of Floating Tiles and Mortar Areas | Epoxy Resin Injection | per square meter/3,000 yen to 5,000 yen (Varies depending on severity) |
| Tile Joint Mortar Repair | Mortar for Tile Joints | per square meter/1,000 yen to 2,000 yen (Varies depending on severity) |
| Concrete Spalling Repair | Reinforcement Rust Prevention Resin Mortar |
Per location/1,000 yen to 2,000 yen (Varies depending on the degree) |
| Crack Repair | Filler or Polymer Cement | Per meter/100 yen to 2,500 yen (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 Testimonials
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 |
| Process Leading Up 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, and while it is somewhat expensive, its high waterproofing capability makes it a recommended choice 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 that cover Akishima City, Tokyo, and it can be confusing to decide which one to choose.
Therefore, when requesting renovations for apartments, condominiums, and buildings, please 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)
● Confirm whether they manage their own projects
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 project achievements.
Additionally, if they provide detailed explanations of repair contents with photos, it offers peace of mind as a reference when you actually request repairs.
If you are concerned about whether the contractor you are about to request will respond adequately, choose one with extensive experience in large-scale renovations.
It is also effective to refer to reviews on Google and review sites to look at 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 troubles with residents and nearby neighbors. Therefore, it is necessary to prevent issues in advance by reporting the progress of the work and sharing information about laundry through bulletin boards and other means.
Kakeru Koumuten Co., Ltd. specializes in exterior construction, and we receive many requests for exterior renovations of apartments and condominiums.
Check for warranties and after-sales maintenance
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 at no cost, providing peace of mind!
Additionally, companies that offer warranty periods are often confident in their work, which can serve as 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 fixes often do not come with a leak warranty.
Moreover, some contractors offer after-sales services separate from warranties, so be sure to check if the contractor you are considering has warranties and after-sales services.
Kakeru Koumuten Co., Ltd. sends out annual direct mail for after-sales maintenance, allowing for yearly inspections.
We also provide free support for simple repairs such as partial sealing.
Obtain estimates from multiple contractors (at least three)
When requesting large-scale repairs, be sure to 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 can vary by contractor, as can warranties and after-sales 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! If the quality of auxiliary materials is low or if steps are skipped, costs can be reduced, so avoid making decisions based solely on price!
Particularly for substrate repair work, which can be difficult to assess visually, be sure to confirm 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 change depending on the actual deterioration condition 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 drawbacks 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 Akishima, Tokyo, please contact Kakeru Koumuten
Our company has handled many exterior wall renovations for condominiums and apartments in Akishima, 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!
“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 optimal 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 Akishima, Tokyo
Asahi-cho, Akishima City / Higashi-cho, Akishima City / Oogami-cho, Akishima City / Gouchi-cho, Akishima City / Kamikawahara-cho, Akishima City / Showa-cho, Akishima City / Tanaka-cho, Akishima City / Tamagawa-cho, Akishima City / Tsukiji-cho, Akishima City / Tsutsuji-ga-oka, Akishima City / Nakagami-cho, Akishima City / Haijima-cho, Akishima City / Fukushima-cho, Akishima City / Matsubara-cho, Akishima City / Midori-cho, Akishima City / Mibori-cho, Akishima City / Miyazawa-cho, Akishima City / Musashino, Akishima City / Mokusei no Mori, Akishima City
・When should large-scale renovations be carried out? An explanation of the optimal timing and the risks of postponement!
・Estimates are essential when carrying out large-scale renovations! Key points for comparison and precautions!
・5 common troubles in large-scale renovations of condominiums! Thorough explanations of causes and prevention measures!
・What is waterproofing work in large-scale renovations? A thorough explanation of its role, signs of deterioration, and precautions!
・Not enough 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 the reasons needed, 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 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 its necessity, signs of deterioration, and cost averages!
・For exterior renovations in Akishima City, Tokyo, trust Kakeru Koumuten!
・For roof renovations in Akishima City, Tokyo, trust Kakeru Koumuten!
・Leave your exterior wall painting in Akishima, Tokyo to Kakeru Koumuten Co., Ltd.!
We welcome consultations via LINE!
We are also updating our Instagram regularly◎ Please follow us!
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!
