If you’re looking for a roof repair contractor in Kunitachi City, Tokyo, come to Kakeru Koumuten Co., Ltd.
Kakeru Koumuten Co., Ltd. specializes in roof repairs and leak repairs as an exterior renovation company.
We have handled numerous roof and leak repairs in Kunitachi City, Tokyo.
If you’re considering a roof renovation, please consult with Kakeru Koumuten Co., Ltd.!
We respond widely to sudden leaks that occurred after a typhoon and roof repairs according to the age of the building !
For those in Kunitachi City, we can respond as soon as the same day, so feel free to contact us.
How to Choose a Leak Repair Contractor
There are many leak repair contractors in Kunitachi City, and you may be unsure which one to choose.
Therefore, when requesting roof repairs and leak repairs, let’s check the following 4 points.
● Have extensive experience in roof repairs and leak repairs
● Check for warranties and aftercare services
● Obtain estimates from multiple contractors (at least 3 companies)
● Confirm whether they conduct leak investigations and roof repairs in-house
By checking the above 4 points, you will be able to choose a reliable contractor.
Extensive Experience in Roof Repairs and Leak Repairs
Roof repair contractors often have websites that showcase their construction achievements.
The construction results may explain the following items, so let’s check if similar repairs have been done for 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 leak repairs.
Kakeru Koumuten Co., Ltd.’s leak repair case studies in Kunitachi City


| Construction Location |
| Kunitachi City, Tokyo |
| Construction Details |
| Roof Overlay Construction |
| Existing Base / New Materials Used |
| Existing Roof Base: Slate New Roofing Material: Super Galtect |
| Price Range |
| 700,000 yen – 800,000 yen |
| Construction Period |
| Approximately 1 week |
| Completion Month |
| January 2022 |
| Inquiry Details |
| We received an inquiry from a customer living in Kunitachi City, Tokyo, stating, “I am considering roof repairs, so I contacted you to take a look!” |
Our Proposal
Since the customer wanted roofing materials that would last as long as possible, we requested a roof overlay (cover method) using the highly durable Super Galtect.
Check for Warranty and Aftercare Services
When choosing a leak repair contractor, make sure to check for warranties.
Leak repairs can recur even after being fixed once, so if you have to request repairs every time a leak reappears, 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 andaftercare services.
Kakeru Koumuten Co., Ltd. provides a leak warranty for all roof overlay and roof replacement work.
Similarly, exterior wall cover work and replacement work, as well as joint sealing work, also come with a leak warranty.
As part of our aftercare, we send out annual direct mail, allowing for yearly inspections.
Obtain Estimates from Multiple Contractors (at least 3)
When requesting roof renovations or leak repairs, be sure to obtain estimates from multiple contractors.
Even for the same repair, costs can vary between contractors, and warranties and after-service may differ as well.
Additionally, obtaining multiple estimates makes it easier to negotiate prices.
To request your desired repair contractor at a lower price, it is essential to get estimates from several contractors.
If a leak occurs, it’s natural to feel anxious, but
first perform temporary measures, and if construction is necessary, taking your time to consider will lead to a satisfactory outcome without regrets!
Kakeru Koumuten Co., Ltd. is happy to assist with emergency leak repairs as well!
Check if 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 pinpoint the source, requiring knowledge and experience.
Contractors that completely outsource roof repairs and leak repairs to subcontractors may lack the necessary knowledge and experience, leading to repairs in the wrong areas or suggesting ineffective leak repairs.
Moreover, investigating and then requesting a subcontractor can incur additional time and costs.
By having the knowledge and experience to perform the work in-house, responsible and cost-effective leak repairs can be completed quickly.
Kakeru Koumuten Co., Ltd. conducts everything from leak investigations to construction in-house!
About the costs of leak repair construction
The table below shows the average costs for areas prone to leaks.
|
Repair Content |
Average Cost |
|
Replacement of part of roofing material |
¥10,000 – ¥20,000 |
|
Roof replacement (re-roofing) |
From ¥500,000 |
|
Roof Overlay (Cover Method) |
400,000 yen~ |
|
Replacement and Repair of Roof Ridge Flashing |
10,000 yen~ |
|
Skylight Repair |
10,000 yen〜 |
|
Exterior Wall and Joint Repair |
10,000 yen~ |
|
Cap Flashing Repair |
10,000 yen~ |
|
Waterproofing Work for Balconies and Rooftops |
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 respond quickly to 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 Area
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.
Contact page for Kakeru Koumuten Co., Ltd. is here!
List of Areas in Kunitachi City
Kunitachi City Aoyagi / Kunitachi City Ishida / Kunitachi City Izumi / Kunitachi City Kita / Kunitachi City Naka / Kunitachi City Nishi / Kunitachi City Higashi / Kunitachi City Fujimidai / Kunitachi City Yakawa / Kunitachi City Yahō
Subsidies and Grants Available for Leak Repairs in Kunitachi City, Tokyo
In Kunitachi City, Tokyo, the following subsidies may be available for leak repairs. For details, please contact our company or the respective local government. (As of February 2025)
Residential Energy Efficiency Subsidy Program
-
Eligible Works:
- Window Insulation Renovation: Work to replace windows exposed to the outside with double-glazed or insulated windows. All windows in the interior must meet certain insulation performance standards.
- Painting of Roofs and Rooftops with High Solar Reflectance Coatings (Heat-Reflective Paint): Work to paint the entire roof or rooftop with paint that has a solar reflectance of 50% or more.
-
Subsidy Amount:
- Window Insulation Renovation: 20% of construction costs (up to 80,000 yen).
- Roof and Rooftop Painting: 20% of construction costs (up to 40,000 yen).
-
Application Period: From April 1, 2024, to March 31, 2025. However, applications will close once the budget limit is reached.
* Applications for the fiscal year 2024 have closed as the budget limit has been reached as of December 19. We plan to continue the subsidy program next year, but the subsidy amount and requirements may change. Information regarding the subsidy program for fiscal year 2025 is expected to be announced on the city’s website after April 1, 2025.
Energy Efficiency Subsidy Program Official Website of Kunitachi City
Subsidy for Seismic Renovation Costs of Wooden Houses
- Eligibility: Wooden houses deemed necessary for renovation based on seismic assessment results.
- Subsidy Amount: One-third of renovation costs (up to 800,000 yen).
Features of Kunitachi City, Tokyo
Kunitachi City is an attractive city located in the central part of the Tama region in Tokyo, where nature and culture harmoniously coexist. With a warm climate throughout the four seasons, you can enjoy beautiful scenery such as cherry blossoms in spring and autumn leaves in fall.
Transportation access is excellent, with “Kunitachi Station” on the JR Chuo Line and “Yagawa Station” and “Yaho Station” on the JR Nambu Line within the city, making it very convenient to reach the city center. It takes about 24 minutes from Shinjuku Station to Kunitachi Station via the Limited Express, and approximately 39 minutes from Tokyo Station.
As for tourist attractions, there is the main street “University Avenue” that leads from Kunitachi Station to Hitotsubashi University, where cherry blossom trees create a stunning landscape in spring. Additionally, “Yaho Tenmangu,” considered the oldest Tenmangu shrine in Eastern Japan, enshrines Sugawara no Michizane, the deity of learning, and the plum and hydrangea gardens within the shrine grounds offer seasonal flowers to enjoy. Furthermore, one of the famous natural springs in the Tama region, “Mama Shita Spring,” is rich in nature and perfect for a stroll.
Kunitachi City is a livable town where a rich natural environment merges with historical and cultural charm.
Our company has undertaken numerous roofing projects in the charming Kunitachi City, Tokyo. In addition to roof overlay (cover method) and roof replacement, we are happy to assist with partial roof repairs such as leak repairs and other repairs! Please feel free to consult us for any sudden troubles!
Summary
Our company handles many roofing projects in Kunitachi City.
We are happy to assist with roof overlay (cover method), roof replacement, leak repairs, and other repairs!
“I just need a temporary fix for the leak”
“I want to repair my broken roof”
“I want to implement overall leak prevention measures for the building”
We will provide the best solutions for your specific requests.
Estimates and inspections are, of course, free!
We carry out everything from temporary scaffolding construction to roofing and exterior painting entirely in-house.
We are confident that our costs, quality, and planning are unmatched compared to other companies in exterior work!
We welcome competitive estimates!
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!




