If you’re looking for a roof repair contractor in Musashimurayama, Tokyo, come to Kakeru Koumuten
Kakeru Koumuten is a remodeling company specializing in roof repairs and leak repairs.
We have handled numerous leak and roof repairs in Musashimurayama, Tokyo.
If you are considering a roof renovation, please feel free to consult with Kakeru Koumuten!
We respond widely to sudden leaks that occur after typhoons and roof repairs based on the age of the building, among other services.
For those in need in Musashimurayama, Tokyo, we offer same-day service, so please feel free to contact us.
How to Choose a Leak Repair Contractor
There are many leak repair contractors in Musashimurayama, and it can be confusing to choose the right one.
Therefore, when requesting roof repairs or leak repairs, make sure to check the following four points.
● They have extensive experience in roof and leak repairs
● Confirm the presence of warranties and aftercare services
● Obtain estimates from multiple contractors (at least three)
● Check if they conduct leak investigations and roof repairs in-house
By confirming the above four points, you will be able to choose a reliable contractor.
Extensive Experience in Roof and Leak Repairs
Roof repair contractors often have websites that showcase their construction achievements.
The construction results may explain the following items, so be sure to check if similar repairs have been performed on your home.
Repair details,the process leading to the repair,materials used,repair costs,repair duration, etc.
Additionally, having detailed explanations of the repair contents with photos can provide 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 properly, choose a contractor with extensive repair experience.
Kakeru Koumuten Co., Ltd. specializes in roof and exterior repairs, and we receive many requests for rain leak repairs.
Examples of rain leak repairs by Kakeru Koumuten Co., Ltd. in Musashimurayama City
| Construction Location |
| Musashimurayama City, Tokyo |
| Construction Details |
| Roof Replacement Work (Roof Repair) Temporary Scaffolding Installation |
| Existing Base / New Materials Used |
| Existing Base: Tile New Roofing Material: Ridgeway |
| Price Range |
| 700,000 – 800,000 |
| Construction Period |
| Approximately 1 week |
| Completion Month |
| October 2022 |
| Inquiry Details |
|
A customer living in Musashimurayama City, Tokyo, contacted us saying, “I’m worried about leaks due to the deterioration of my tile roof, so I would like to request an estimate for lightweight and cost-effective roofing materials!” |
Our Proposal
Since the customer desired lightweight and cost-effective roofing materials, we proposed a roof overlay (cover method) using Ridgeway, which is both lightweight and offers excellent cost performance!
Check for Warranty and Aftercare Services
When choosing a leak repair contractor, be sure to check for warranties.
Leak repairs can recur even after being fixed, so if you have to request repairs every time a leak reoccurs, it can lead to significant expenses.
For this reason, contractors that offer a warranty may provide free repairs within the warranty period.
The warranty period varies by contractor and the type of work, but it typically ranges from 1 to 10 years.
Emergency repairs or partial fixes often do not come with a leak warranty.
Additionally, some contractors offer aftercare services separate from warranties, so be sure to check if the contractor you are considering has warranties and aftercare services.
Kakeru Koumuten Co., Ltd. provides a leak warranty for all roof overlay (cover method) and roof replacement work.
Similarly, for exterior walls, a leak warranty is included for exterior wall overlay (cover method) and replacement work, as well as for joint sealing work.
As part of our aftercare, we send out annual direct mail, allowing for yearly inspections.
Obtain estimates from multiple contractors (at least 3 companies)
When requesting roof renovations or leak repairs, be sure to obtain estimates from multiple contractors.
Even for the same repair work, the costs may vary between contractors, and the warranties and after-sales services may differ as well.
Additionally, obtaining multiple estimates makes it easier to negotiate prices.
To request your preferred contractor at a lower price, it is essential to obtain estimates from multiple companies.
If a leak occurs, you may feel anxious, but
first, perform temporary measures, and if construction is necessary, calmly consider your options to ensure the work is satisfactory!
Kakeru Koumuten is happy to assist with emergency leak repairs as well!
Confirm whether the company conducts leak investigations and roof repairs in-house
Leaks can sometimes be quickly identified, while in other cases, it may take time to determine the cause, requiring knowledge and experience.
If a contractor completely outsources roof repairs and leak repairs to subcontractors, they may lack the necessary knowledge and experience, leading to repairs in the wrong areas or unnecessary leak repairs being suggested.
Moreover, having to investigate and then request a subcontractor adds extra time and costs.
By having the knowledge and experience to perform the work in-house, responsible and cost-effective leak repairs can be conducted swiftly.
Kakeru Koumuten conducts leak investigations and construction in-house!
About the costs of leak repair work
The table below shows the average costs for areas prone to leaks.
|
Repair Details |
Average Cost |
|
Partial replacement of roofing material |
¥10,000 – ¥20,000 |
|
Roof replacement (re-roofing) |
From 500,000 yen |
|
Roof overlay (cover method) |
From 400,000 yen |
|
Replacement and repair of ridge metal |
From 10,000 yen |
|
Skylight repair |
From 10,000 yen |
|
Repair of exterior walls and joints |
From 10,000 yen |
|
Repair of coping metal |
From 10,000 yen |
|
Waterproofing work for balconies and rooftops |
From 80,000 yen |
For detailed pricing, click here!!
About Kakeru Koumuten
Kakeru Koumuten Co., Ltd. is a remodeling company based in Aoba-ku, Yokohama, Kanagawa Prefecture, specializing in roofing, painting, and scaffolding work with complete in-house construction.
By assembling temporary scaffolding and performing roof repairs in-house,
we can provide quick leak repairs at reduced costs.
Company Introduction


● We store scaffolding materials!
Since we can set up temporary scaffolding in-house, we can quickly carry out roof repairs.


● We store materials and tools related to roofing and painting work!
We have all the necessary components for leak repairs, allowing us to respond quickly!
Customer Reviews
Service Areas
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.
Contact page for Kakeru Koumuten Co., Ltd. is here!
List of Areas in Musashimurayama City
Inadaira, Musashimurayama City / Enoki, Musashimurayama City / Ominami, Musashimurayama City / Gakuen, Musashimurayama City / Kishi, Musashimurayama City / Zambori, Musashimurayama City / Shinmei, Musashimurayama City / Chuo, Musashimurayama City / Nakato, Musashimurayama City / Nakahara, Musashimurayama City / Honcho, Musashimurayama City / Mitsuki, Musashimurayama City / Mitsufuji, Musashimurayama City / Midorigaoka, Musashimurayama City
Possible Subsidies and Grants for Roof Leak Repairs in Musashimurayama City, Tokyo
In Musashimurayama City, Tokyo, the following subsidies may be available for roof leak repairs. For details, please contact our company or the respective local government. (As of February 2025)
Heat-Reflective Coating and Insulation Work Subsidy
* Application acceptance has currently ended.
Eligible Work and Subsidy Amounts
The maximum subsidy amount differs depending on whether the contractor is a “local contractor” or an “outside contractor.”
|
Eligible Work |
Subsidy Amount (Contractor is a local contractor) |
Subsidy Amount (Contractor is an outside contractor) |
|---|---|---|
| Heat-Reflective Coating Work |
Construction cost (amount for eligible work) × 1/2 [Maximum amount: 50,000 yen] |
Construction cost (amount for eligible work) × 1/2 [Maximum amount: 30,000 yen] |
| Insulation Work |
Construction cost (amount for eligible work) × 1/2 [Maximum amount: 50,000 yen] |
Construction cost (amount for eligible work) × 1/2 【Maximum amount 30,000 yen】 |
- If there is a fraction of less than 1,000 yen in the subsidy amount, it will be rounded down.
- Local contractors refer to those who have a business office in Musashimurayama City, while non-local contractors refer to those outside of this area.
Requirements for Eligible Construction
|
Type of Work |
Details of Work |
|---|---|
| Heat-Reflective Coating Work |
Painting work using the following coatings on rooftops, exterior walls, and balconies or ・Heat-reflective coatings that comply with Japanese Industrial Standard K5675 (rooftops only) |
| Insulation Work |
・Renovation work for insulation materials for windows and doors |
For more details, please check the official page of Musashimurayama City.
Subsidy for Seismic Renovation of Wooden Houses
* Currently, application acceptance has ended.
This is a system that subsidizes part of the costs for seismic diagnosis and renovation work for wooden houses built before May 31, 1981.
-
Eligible Work:
- Seismic Diagnosis
- Seismic Renovation Work
- Simple Seismic Renovation Work
- Installation of Seismic Shelters, etc.
-
Subsidy Amount:
- Seismic Diagnosis: Half of the cost (up to 100,000 yen)
- Seismic Renovation Work: Half of the cost (up to 300,000 yen)
- Simple Seismic Renovation Work and Installation of Seismic Shelters, etc.: Half of the cost (up to 200,000 yen)
For more details, please check the page on the Musashimurayama City official website about “Subsidies for Seismic Renovation of Wooden Houses”.
Features of Musashimurayama City, Tokyo
Musashimurayama City is located in the northwestern part of Tokyo and is blessed with a rich natural environment in the Tama region. The city area is spread with the Sayama Hills, making it a beloved area for its abundant greenery and waterways, providing a tranquil living environment.
The climate has an inland characteristic, with hot summers and cold winters, but it offers an environment where you can enjoy beautiful nature throughout the four seasons.
Transportation access is convenient, with the Tama Monorail running through the city, allowing easy transfers to the JR Chuo Line and Seibu Haijima Line. It also has good access to Tachikawa Station, making it suitable for commuting to and from the city center. Additionally, the road network within the city is well-maintained, making travel by car comfortable.
As for tourist spots, there is the “Noyamakita-Rokudoyama Park,” surrounded by rich nature. This park, with its satoyama landscape, offers opportunities for walking, bird watching, and observing seasonal plants. Furthermore, “Murayama Onsen Katakurino-yu” provides a day-use hot spring experience, popular as a relaxation spot for both residents and tourists.
Our company has undertaken many roofing projects in the attractive Musashimurayama City, Tokyo. In addition to roof overlay work and roof replacement, we are also happy to handle partial roof repairs such as leak repairs and other repairs! Please feel free to consult us about any sudden troubles!
Summary
Our company handles many roofing projects in Musashimurayama City.
We are happy to assist with roof overlay work, roof replacement, leak repairs, and other repairs!
“Just a temporary fix for the leak”
“I want to repair the cracked roof”
“I would like to implement overall leak prevention measures for the building”
We provide optimal solutions for specific requests like these.
Estimates and inspections are, of course, free!
We carry out everything from temporary scaffolding work to roof construction and exterior painting entirely in-house.
We are confident that our costs, quality, and efficiency in exterior work are unmatched compared to other companies!
We welcome competitive estimates with confidence!
We look forward to your inquiries. Thank you very much.
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!




