If you’re looking for a roof repair contractor in Chuo-ku, Tokyo, come to Kakeru Koumuten
Kakeru Koumuten is an exterior renovation company specializing in roof repairs and leak repairs.
We have handled numerous leak repairs and roof repairs in Chuo-ku, Tokyo.
If you are considering a roof renovation, please feel free to consult with Kakeru Koumuten!
We handle a wide range of issues, including sudden leaks after typhoons and roof repairs based on the age of the building.
For those in need in Chuo-ku, Tokyo,
we can respond as soon as the same day, so please feel free to contact us.
How to Choose a Leak Repair Contractor
There are many leak repair contractors in Chuo-ku, and you may be unsure which one to choose.
Therefore, when requesting roof repairs and leak repairs, let’s check the following four points.
● They should have extensive experience in roof repairs and leak repairs.
● Confirm whether they offer 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 can choose a reliable contractor.
Extensive Experience in Roof Repairs and Leak Repairs
Roof repair contractors often have websites that showcase their work history.
They may explain the following items in their work history, so check if they have performed repairs similar to yours.
Repair details,the process leading to the repair,materials used,repair costs,repair duration, etc.
Additionally, if they provide detailed explanations of the repair work with photos, it can give you peace of mind as a reference when you actually request repairs.
If you are worried 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.
Examples of Roof Repairs by Kakeru Koumuten Co., Ltd. in Chuo-ku


| Construction Location |
| Chuo-ku, Tokyo |
| Construction Details |
| Roof Replacement Work Temporary Scaffolding Installation |
| Inquiry Details |
| A customer living in Chuo-ku, Tokyo contacted us saying, “I am concerned about the cracks and deterioration of the roof, so I would like you to take a look.” |
| Existing Substrate / Materials Used |
| Existing Roofing Material: Colonial NEO Materials Used for Roof Overlay: Super Galtect |
| Price Range |
| 1,200,000 – 1,300,000 yen |
| Construction Period |
| Approximately 2 weeks |
| Completion Month |
| December 2023 |
Our Proposal
This time, since the existing roofing material was a Colonial NEO that cannot be painted, we proposed the roof overlay (cover method).
Check for Warranty and After-Sales Maintenance
When choosing a leak repair contractor, make sure to check for warranty availability.
Leak repairs can recur even after being fixed once, so if you have to request repairs every time a leak reoccurs, it can lead to significant expenses.
For this reason, if you choose a contractor that offers a warranty period, you may be able to get repairs done for free within that warranty period.
The warranty period varies by contractor and the nature of the 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 after-sales services separate from the warranty, so be sure to check if the contractor you are considering has warranties and after-sales services.
Kakeru Koumuten Co., Ltd. provides a leak warranty for all roof overlay and roof replacement work.
Similarly, for exterior walls, leak warranties are also included for exterior wall overlay and replacement work as well as joint sealing work.
As part of our after-sales maintenance, we send out annual direct mail, allowing for inspections every year.
Obtain estimates from multiple contractors (at least 3 companies)
When requesting roof renovations or leak repairs, be sure to obtain estimates from multiple contractors.
The repair costs may vary between contractors even for the same repair work, and there may be differences in warranties and after-sales service.
Additionally, obtaining multiple estimates makes it easier to negotiate prices.
To request your desired repair contractor at a lower cost, it is essential to obtain estimates from several companies.
If a leak occurs, it’s natural to feel rushed, but
first, perform temporary measures, and if construction is needed, taking the time to consider it calmly will lead to a satisfactory outcome!
Kakeru Koumuten is happy to assist with temporary measures for leaks!
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 determine the source of the leak, requiring knowledge and experience.
Contractors that completely outsource roof repairs and leak repairs to subcontractors may lack the necessary knowledge and experience, leading to proposals for repairs in the wrong areas or ineffective leak repairs.
Moreover, relying on subcontractors after an investigation incurs 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 conducts everything from leak investigations to 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 |
|
Replacement of part of roofing material |
¥10,000 – ¥20,000 |
|
Roof replacement (re-roofing) |
From ¥500,000 |
|
Roof overlay (cover method) |
From ¥400,000 |
|
Replacement and repair of roof ridge metal |
From 10,000 yen |
|
Skylight repair |
From 10,000 yen |
|
Exterior wall and joint repair |
From 10,000 yen |
|
Cap flashing repair |
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 while keeping costs down.
Company Introduction


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


● 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 all of Tokyo.
Contact page for Kakeru Koumuten Co., Ltd. is here!
Chuo-ku, TokyoArea List
Akasaka-cho, Chuo-ku / Irifune, Chuo-ku / Kachidoki, Chuo-ku / Kyobashi, Chuo-ku / Ginza, Chuo-ku / Shinkawa, Chuo-ku / Shintomi, Chuo-ku / Tsukishima, Chuo-ku / Tsukiji, Chuo-ku / Tsukuda, Chuo-ku / Toyoma-cho, Chuo-ku / Nihonbashi, Chuo-ku / Nihonbashi Odenma-cho, Chuo-ku / Nihonbashi Kakigaracho, Chuo-ku / Nihonbashi Kabuto-cho, Chuo-ku / Nihonbashi Kayabacho, Chuo-ku / Nihonbashi Koamicho, Chuo-ku / Nihonbashi Kodenma-cho, Chuo-ku / Nihonbashi Kobunacho, Chuo-ku / Nihonbashi Tomizawa-cho, Chuo-ku / Nihonbashi Nakasu, Chuo-ku / Nihonbashi Ningyo-cho, Chuo-ku / Nihonbashi Hakozaki-cho, Chuo-ku / Nihonbashi Hamacho, Chuo-ku / Nihonbashi Bakuro-cho, Chuo-ku / Nihonbashi Hisamatsu-cho, Chuo-ku / Nihonbashi Horidome-cho, Chuo-ku / Nihonbashi Hon-cho, Chuo-ku / Nihonbashi Muromachi, Chuo-ku / Nihonbashi Yokoyama-cho, Chuo-ku / Hatchobori, Chuo-ku / Hamarikyu Gardens, Chuo-ku / Harumi, Chuo-ku / Higashi-Nihonbashi, Chuo-ku / Minato, Chuo-ku / Yaesu, Chuo-ku
Subsidies and Grants for Leak Repairs in Chuo-ku, Tokyo
In Chuo-ku, Tokyo, the following subsidies may be available for leak repairs. For details, please contact us or your local government. (As of February 2025)
Chuo-ku Living Environment Improvement Subsidy
Chuo-ku has a system to subsidize part of the costs for housing renovation (reform) work conducted by registered contractors in the city, aimed at ensuring a safe and secure living environment for homeowners. However, applications for the 2024 fiscal year have ended.
Roofing and painting work are also eligible, so those who qualify may receive subsidies.
We will update this information as soon as the next year’s grant application starts.
Conclusion
Our company handles many roofing projects in Chuo-ku.
We are happy to assist with partial roof repairs such as roof overlay work, roof replacement, and leak repairs, as well as 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 work to roof construction and exterior painting entirely in-house.
We are confident that our costs, quality, and efficiency in exterior work surpass those of 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!




