目次
- 1 If you are looking for large-scale repair contractors in Chiyoda-ku, Tokyo, come to Kakeru Koumuten
- 2 Reasons why Kakeru Koumuten is chosen for large-scale repairs in Chiyoda-ku, 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 Maintenance
- 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 Renovations in Chiyoda-ku, 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 2028 Subsidy Project: Promotion of Insulation and Renewable Energy in Rental Housing
- 3.4 FY 2028 Renovation Cost Subsidy System [Special Nursing Homes, etc.]
- 4 Examples of Costs for Major Repairs
- 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 Chiyoda-ku, Tokyo, please contact Kakeru Koumuten
If you are looking for
large-scale repair contractors in
Chiyoda-ku, Tokyo, come to Kakeru Koumuten
Kakeru Koumuten is a renovation company that can handle everything from temporary scaffolding installation to roof work, waterproofing, and exterior painting
with complete in-house construction capabilities. We have undertaken numerous large-scale repairs and exterior renovations for apartments, condominiums, and commercial facilities in Chiyoda-ku, Tokyo.
“Subsidies and costs available for large-scale repairs in Chiyoda-ku”
“How to choose a large-scale repair contractor in Chiyoda-ku”
“Reasons why Kakeru Koumuten is chosen in Chiyoda-ku”
These topics will definitely be useful 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 obtain at least 3 estimates from large-scale repair companies that cover Chiyoda-ku!
Reasons why Kakeru Koumuten is chosen for large-scale repairs in Chiyoda-ku, Tokyo
One reason why we are entrusted with large-scale repairs in Chiyoda-ku is that
“Our unique initiatives in large-scale repair work that cannot be imitated by other companies”
have received high praise from many customers.
“costs,” “quality,” and “plans” for exterior renovations of apartments, condominiums, and commercial facilities in Chiyoda-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 repairs.
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 repairs, allowing us to set up 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, since we always have stock available, we can provide rapid responses even in emergencies!
In-house Waste Separation
In 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 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 Co., Ltd.’s major strengths is our in-house management and construction.
From inquiries to project completion, everything is managed in a consistent system by Kakeru Koumuten Co., Ltd. This allows 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 manages sales and construction, smooth communication is possible.
We can handle everything from temporary scaffolding installation to exterior wall painting, substrate repair, waterproofing work, and tile repairs with complete in-house construction!
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 specialists on staff, giving us confidence in our construction techniques.
We are capable of handling large-scale roofing projects for factories and similar structures!
We have qualified asbestos supervisors and asbestos surveyors on staff, allowing us to handle asbestos-containing roofing materials and conduct pre-investigations.
4. Warranty and Aftercare Maintenance
Most large-scale repair works come with a warranty for almost all services, 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 using drones!
During leak investigations, we can utilize 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 leaks!
In case of emergencies or urgent requests, we will respond promptly!
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 training to ensure that all staff 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 visit neighbors to greet and explain the work, but we also install bulletin boards at entrances to display the work schedule and announcements!
Additionally, we thoroughly educate entrants on manners 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 no inspections are overlooked.
When performing exterior wall painting or waterproofing work, we confirm the quantity of used paint cans to ensure that the specified amount of paint is used, and we prevent construction defects by ordering paint directly from our company.
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 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 making image changes, we hope to help you achieve a 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 available)
・Simulation for when metal siding is applied
・Simulation using accent materials such as cornices and louvers
・Simulation for roof painting or roof replacement work is also possible
With the exterior renovation simulation, you can significantly reduce the risk of failure in image changes!
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 Renovations in Chiyoda-ku, Tokyo
In Chiyoda-ku, Tokyo, there are potential subsidies available when carrying out renovation work on apartments and condominiums!
For details, please contact our company or the respective 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 modifications.
Additionally, installation work for solar power generation equipment is also eligible for financing.
◎ For more details, click here↓
Subsidies for Repairs of Condominiums
Japan Housing Finance Agency
FY 2028 Subsidy Project: Promotion of Insulation and Renewable Energy 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 security, as well as 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 2028 Rental Housing Insulation and Renewable Energy Promotion Project
FY 2028 Renovation Cost Subsidy System [Special Nursing Homes, etc.]
The Tokyo Metropolitan Government provides support for renovations of elderly facilities.
◎ For more details, click here↓
Explainer Video on Renovation Cost Subsidies for Special Nursing Homes, etc.
[Chiyoda-ku] Subsidy for Promoting Earthquake Resistance in Condominiums
In Chiyoda-ku, financial assistance is provided to management associations of condominium buildings or owners of rental apartments for costs related to seismic diagnosis, reinforcement design, and seismic retrofitting.
◎ For more details, click here↓
About the Subsidy for Promoting Seismic Resistance in Condominiums
Guide to the Subsidy System for Promoting Seismic Resistance in Chiyoda-ku Condominiums (PDF)
[Chiyoda-ku] Disaster Prevention Measures for Condominiums (Safety and Security Support)
The Public Interest Incorporated Foundation Machimirai Chiyoda supports disaster prevention measures for condominiums, including “Support for Developing Disaster Prevention Plans,” “Distribution of Emergency Elevator Supply Cabinets,” “AED Installation,” and “Subsidies for Purchasing Disaster Response Equipment,” among others.
◎ For more details, click here↓
About Safety and Security Support
Examples of Costs for Major Repairs
These are examples 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, 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 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 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 rooftop, we proposed waterproofing for the entire exterior wall. 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 Chiyoda-ku, Tokyo, and you may be unsure which contractor to choose.
For this reason, when requesting renovations for apartments, condominiums, and buildings, make 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 renovation achievements.
Additionally, if they provide detailed explanations of the 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 adequately, choose a contractor 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 requesting their services.
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 sharing laundry information on 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 depending on the contractor and the scope of work, but typically range from 1 to 10 years.
Emergency repairs or partial repairs 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.
At Kakeru Koumuten Co., Ltd., we send out annual direct mail for after-sales maintenance, allowing for yearly inspections.
For simple repairs such as partial sealing, we provide services free of 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 scope of work, repair costs and warranties or after-sales services may differ between contractors.
Additionally, obtaining multiple estimates makes it easier to negotiate prices.
To request your desired repair contractor at the lowest possible price, obtaining estimates from multiple contractors is essential.
When comparing estimates, it is important to look at not just the costs, but also
“Items in the estimate”
“Methods and materials for base repair work and exterior wall painting”
“Confirmation of the process”
and make detailed comparisons! If the quality of auxiliary materials is low or if processes are skipped, costs can be reduced, so avoid making decisions based solely on price!
Especially regarding base repair work, since it is not easily visible from the outside, be sure to check whether the repair method is appropriate for the condition of the base!
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 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, if a contractor is outsourcing to subcontractors, one of the drawbacks is that response to any troubles that may occur during construction can 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 Chiyoda-ku, Tokyo, please contact Kakeru Koumuten
Our company has handled many exterior wall renovations for condominiums and apartments in Chiyoda-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 efficiency 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 Chiyoda-ku, Tokyo
Chiyoda-ku, Iidabashi / Chiyoda-ku, Ichibancho / Chiyoda-ku, Iwamotocho / Chiyoda-ku, Uchikanda / Chiyoda-ku, Uchisaiwaicho / Chiyoda-ku, Otemachi / Chiyoda-ku, Kajicho / Chiyoda-ku, Kasumigaseki / Chiyoda-ku, Kanda Aioicho / Chiyoda-ku, Kanda Awajicho / Chiyoda-ku, Kanda Izumicho / Chiyoda-ku, Kanda Iwamotocho / Chiyoda-ku, Kanda Ogawacho / Chiyoda-ku, Kanda Kajicho / Chiyoda-ku, Kanda Kitano Moromachi / Chiyoda-ku, Kanda Konyacho / Chiyoda-ku, Kanda Sakumakawagashi / Chiyoda-ku, Kanda Sakumacho / Chiyoda-ku, Kanda Sarugakucho / Chiyoda-ku, Kanda Jinbocho / Chiyoda-ku, Kanda Sudacho / Chiyoda-ku, Kanda Surugadai / Chiyoda-ku, Kanda Tamacho / Chiyoda-ku, Kanda Tsukasaicho / Chiyoda-ku, Kanda Toyamacho / Chiyoda-ku, Kanda Nishifukudacho / Chiyoda-ku, Kanda Renbaicho / Chiyoda-ku, Kanda Hanaokacho / Chiyoda-ku, Kanda Higashikonyacho / Chiyoda-ku, Kanda Higashimatsushitacho / Chiyoda-ku, Kanda Hirakawacho / Chiyoda-ku, Kanda Matsunagacho / Chiyoda-ku, Kanda Mikuracho / Chiyoda-ku, Kanda Misakicho / Chiyoda-ku, Kanda Midoyacho / Chiyoda-ku, Kioicho / Chiyoda-ku, Kitano Marukoen / Chiyoda-ku, Kudansouth / Chiyoda-ku, Kudannorth / Chiyoda-ku, Imperial Palace Outer Garden / Chiyoda-ku, Kojimachi / Chiyoda-ku, Gobancho / Chiyoda-ku, Sanbancho / Chiyoda-ku, Sotokanda / Chiyoda-ku, Chiyoda / Chiyoda-ku, Nagatacho / Chiyoda-ku, Nishikanda / Chiyoda-ku, Nibancho / Chiyoda-ku, Hayabusa-cho / Chiyoda-ku, Higashikanda / Chiyoda-ku, Hitotsubashi / Chiyoda-ku, Hibiya Park / Chiyoda-ku, Hirakawacho / Chiyoda-ku, Fujimi / Chiyoda-ku, Marunouchi / Chiyoda-ku, Yurakucho / Chiyoda-ku, Yobancho / Chiyoda-ku, Rokubancho
・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 comparison points and precautions!
・5 common troubles in large-scale renovations of apartments! 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 surface repair, which is important 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 tile repair, which is important 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 repairs? A thorough explanation of necessity, signs of deterioration, and cost trends!
・For exterior renovations in Chiyoda-ku, Tokyo, trust Kakeru Koumuten Co., Ltd.!
・For roof renovations in Chiyoda-ku, Tokyo, trust Kakeru Koumuten Co., Ltd.!
・For exterior wall painting in Chiyoda-ku, Tokyo, trust 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!
