Leave the repairs and renovations of condominiums and apartments in Hachioji City, Tokyo to Kakeru Koumuten Co., Ltd.!
If you are looking for
a large-scale renovation contractor in
Hachioji City, Tokyo, come to Kakeru Koumuten
Kakeru Koumuten is a renovation company capable of complete in-house construction, from temporary scaffolding installation to roof work, waterproofing, and exterior painting.
We have handled numerous large-scale renovations and exterior reforms for apartments, condominiums, and commercial facilities in Hachioji City, Tokyo.
“Subsidies and costs available for large-scale renovations in Hachioji City”
“How to choose a large-scale renovation contractor in Hachioji City”
“Reasons why Kakeru Koumuten is chosen in Hachioji City”
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 renovations is
“multiple estimates”!
Let’s obtain at least three estimates from large-scale renovation companies that cover Hachioji City!
Reasons why Kakeru Koumuten is chosen for large-scale renovations in Hachioji City, Tokyo
One reason why we are entrusted with large-scale renovations in Hachioji 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 Hachioji 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 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 not outsourcing scaffolding work and using our own scaffolding team, we can cut costs on scaffolding work and provide quick and flexible responses.
We have enough scaffolding materials for approximately 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 purchase materials at lower prices!
Additionally, we always have stock available, allowing us to respond quickly 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 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 exterior material samples and colors.
Color simulations for exterior wall painting and confirmation of heat insulation properties using heat insulation testing equipment are also available!
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, 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 same person will be in charge, whether it’s sales or construction management, smooth communication is possible.
We can handle everything from temporary scaffolding installation to exterior wall painting, substrate repair, waterproofing, and tile repairs entirely in-house!
Qualified professionals with specialized knowledge and experience will conduct inspections and actual construction at each stage!
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, giving us confidence in our construction techniques.
We can also handle large-scale roofing projects for factories and other facilities!
We have qualified personnel for asbestos management and asbestos surveyors, enabling us to handle asbestos-containing roofing materials and conduct preliminary investigations.
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 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 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 training to ensure that each staff member can respond appropriately.
We also educate on points to be careful about 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 greet neighbors, but we also install bulletin boards at entrances to display the schedule and announcements!
Additionally, we thoroughly educate entrants on proper manners 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 there are no oversights.
When conducting exterior wall painting or waterproofing work, we confirm the quantity of used paint cans to ensure the specified amount of paint is used, and we order paint directly from our company 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 photos of your actual apartment or building!
You can also perform the simulation on your smartphone or computer.
By simulating and then applying two-tone colors or making image changes, 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 conduct 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 also possible)
・Simulation for applying metal siding
・Simulation using accent materials like cornices and louvers
・Simulation for roof painting or roof replacement work is also possible
The risk of failure in image changes can be greatly reduced with exterior renovation simulations!
We hope that renovating the appearance of your apartment or condominium will help increase occupancy rates.
Possible Subsidies and Grants for Large-Scale Repairs in Hachioji City, Tokyo
In Hachioji City, Tokyo, there are potential subsidies available when carrying out renovation work on apartments and condominiums!
For details, please contact our company or your local government! (As of July 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 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 improvements and repairs, such as exterior wall painting of common areas, rooftop waterproofing, and barrier-free renovations.
Additionally, solar power installation work is also eligible for financing.
◎ For more details, click here↓
Grants for Repairs of Condominiums
(Japan Housing Finance Agency)
FY2026 Grant Project for Insulation and Renewable Energy Promotion 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 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
FY2026 Insulation and Renewable Energy Promotion Project for Rental Housing
FY2026 Renovation Cost Subsidy System for Special Nursing Homes
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
Examples of Costs for Large-Scale Repairs
Here 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, 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 tile replacement Painting of ancillary parts (pipes, water cut-off) Roof waterproofing work (urethane waterproofing) Exterior wall tile waterproofing (Seven S) Sash sealing work Exterior wall tile mortar joint repair Removal of ivy |
| New Materials Used |
| Exterior wall tile: Kunishiro tile 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 to Construction |
| Due to leaks occurring from several areas such as the exterior walls and rooftop, we proposed waterproofing for the entire exterior wall. The 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 points on the exterior wall, it is recommended as a waterproofing material. |
How to Choose a Large-Scale Renovation Contractor
There are many large-scale renovation contractors that cover Hachioji City, Tokyo, and it can be confusing to decide which contractor to choose.
Therefore, when requesting renovations for apartments, condominiums, and buildings, let’s 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 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 hire will respond adequately, 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 might 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 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-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 repairs often do not come with a leak warranty.
Moreover, some contractors offer after-sales services in addition to 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 as part of our after-sales maintenance, allowing for inspections every year.
We provide simple repairs such as partial sealing at no charge.
Obtain estimates from multiple contractors (at least 3 companies)
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 between contractors, 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, it is essential to obtain estimates from multiple contractors.
When comparing estimates, consider not only the cost but also
“Items in the estimate”
“Methods and materials for substrate repair work and exterior wall painting”
“Confirmation of the process”
and make detailed comparisons! 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, since it is often not visible from the outside, be sure to check if the repair method is appropriate for the condition of the substrate!
Check if it’s 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 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 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 their response may be slow in case of any trouble during construction.
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 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 Hachioji City, Tokyo, please contact Kakeru Koumuten
Our company has handled many exterior wall renovations for condominiums and apartments in Hachioji City, 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 be able to provide emergency measures, so please feel free to consult 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 in exterior work!
We welcome competitive estimates as we are confident in our services!
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and all of Tokyo.
List of Areas in Hachioji City, Tokyo
Aoba-ku, Hachioji / Asahi-cho, Hachioji / Higashi-cho, Hachioji / Ishikawa-cho, Hachioji / Izumi-cho, Hachioji / Inume-cho, Hachioji / Ueno-cho, Hachioji / Uchikoshi-cho, Hachioji / Uzuki-cho, Hachioji / Uzunuki-cho, Hachioji / Ume坪町, Hachioji / Uratakao-cho, Hachioji / Oiwake-cho, Hachioji / Otsuka, Hachioji / Ofuna-cho, Hachioji / Otani-cho, Hachioji / Ooyoko-cho, Hachioji / Owada-cho, Hachioji / Komon-cho, Hachioji / Ozaki-cho, Hachioji / Ozu-cho, Hachioji / Kashima, Hachioji / Kazume-cho, Hachioji / Katakura-cho, Hachioji / Kanatani-cho, Hachioji / Kamii分方町, Hachioji / Kamionogata-cho, Hachioji / Kamikawa-cho, Hachioji / Kamiyuzuki, Hachioji / Kawaguchi-cho, Hachioji / Kawa-cho, Hachioji / Kitano-dai, Hachioji / Kitano-cho, Hachioji / Kinugao-cho, Hachioji / Kiyokawa-cho, Hachioji / Kurata-cho, Hachioji / Kuboyama-cho, Hachioji / Koshino, Hachioji / Kohiki-cho, Hachioji / Komiya-cho, Hachioji / Koyasu-cho, Hachioji / Sainiruma-cho, Hachioji / Shimoenogata-cho, Hachioji / Shimoyuzuki, Hachioji / Shiroyama-te, Hachioji / Shinmachi, Hachioji / Suwa-cho, Hachioji / Sennin-cho, Hachioji / Hira-cho, Hachioji / Takao-cho, Hachioji / Takakura-cho, Hachioji / Takatsuki-cho, Hachioji / Takiyama-cho, Hachioji / Tatemachi, Hachioji / Tamachi, Hachioji / Tanuki-cho, Hachioji / Dai-cho, Hachioji / Oorakuji-cho, Hachioji / Terada-cho, Hachioji / Teramachi, Hachioji / Tenjin-cho, Hachioji / Nizuri-cho, Hachioji / Tobuki-cho, Hachioji / Nakacho, Hachioji / Nakano-kamimachi, Hachioji / Nakano-sannou, Hachioji / Nakano-cho, Hachioji / Nakayama, Hachioji / Nagatsuna-cho, Hachioji / Nagabusa-cho, Hachioji / Nanakuni, Hachioji / Namiki-cho, Hachioji / Narahara-cho, Hachioji / Nanyo-dai, Hachioji / Nishi-Asakawa-cho, Hachioji / Nishi-Katakura, Hachioji / Nishi-Terakata-cho, Hachioji / Nibun-kata-cho, Hachioji / Hazama-cho, Hachioji / Yahata-cho, Hachioji / Hatsuzawa-cho, Hachioji / Higashi-Asakawa-cho, Hachioji / Higashi-Nakano, Hachioji / Hyoe, Hachioji / Hiyoshi-cho, Hachioji / Hiraoka-cho, Hachioji / Fujimi-cho, Hachioji / Bessho, Hachioji / Horinouchi, Hachioji / Hongou-cho, Hachioji / Honmachi, Hachioji / Matsugaya, Hachioji / Matsuki, Hachioji / Maruyama-cho, Hachioji / Misaki-cho, Hachioji / Mitsui-dai, Hachioji / Midori-cho, Hachioji / Minami-Asakawa-cho, Hachioji / Minami-Oosawa, Hachioji / Minami-Shimmachi, Hachioji / Minami-cho, Hachioji / Minamino, Hachioji / Miyashita-cho, Hachioji / Miyama-cho, Hachioji / Myoujin-cho, Hachioji / Mejiro-dai, Hachioji / Moto-Hachioji-cho, Hachioji / Moto-Hongou-cho, Hachioji / Moto-Yokoyama-cho, Hachioji / Yagi-cho, Hachioji / Tani-no-cho, Hachioji / Yamada-cho, Hachioji / Yari-mizu, Hachioji / Youka-cho, Hachioji / Yokokawa-cho, Hachioji / Yokoyama-cho, Hachioji / Yotsuya-cho, Hachioji / Manmachi
・When should large-scale renovations be carried out? An explanation of the optimal timing and the risks of postponement!
・Estimates are essential when conducting 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 its role, signs of deterioration, and precautions!
・Insufficient funds for large-scale renovations… An explanation of how to address funding shortages and preparations you can do right now!
・What is the important substrate repair in large-scale renovations? A thorough explanation of the reasons needed, signs of deterioration, and types of construction!
・What is sealing work in large-scale renovations? Introducing its role, methods, and tips to avoid failures!
・What is important tile repair in large-scale renovations? Explaining signs of deterioration, types of work, and cost estimates!
・What is important exterior wall painting in large-scale renovations? A thorough explanation of its necessity, signs of deterioration, and cost estimates!
・For exterior renovations in Hachioji, Tokyo, trust Kakeru Koumuten!
・For roof renovations in Hachioji, Tokyo, trust Kakeru Koumuten!
・For exterior wall painting in Hachioji, Tokyo, trust Kakeru Koumuten!
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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！
