Leave Your Roof Leak Repairs in Mitaka City, Tokyo to Kakeru Koumuten Co., Ltd.!
If you’re looking for a roof repair contractor in Mitaka City, Tokyo, come to Kakeru Koumuten Co., Ltd.
Kakeru Koumuten Co., Ltd. is a company specializing in roof repairs and leak repairs for exterior renovations.
We have handled numerous leak repairs and roof repairs in Mitaka City, Tokyo.
If you are considering a roof renovation, please feel free to consult with Kakeru Koumuten Co., Ltd.!
We respond widely to sudden leaks that occurred after a typhoon and roof repairs based on the age of the building, among other services.
If you are in need in Mitaka City, 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 Mitaka City, and you may be unsure which one to choose.
Therefore, when requesting roof repairs and leak repairs, let’s check the following four points.
● Have extensive experience in roof repairs 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 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, if the repair details are explained in detail with photos, it provides peace of mind as it can serve 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’s roof repair case studies in Mitaka City
| Construction Location |
| Tokyo, Mitaka City |
| Construction Details |
| Temporary scaffolding installation Roof replacement |
| Background to the Construction |
|
We received the following inquiry from a customer living in Mitaka City, Tokyo. |
| New Materials Used |
|
New Roofing Material: Sekino Kousan / Ritohira Lock Type 32 Flat Type with Insulation |
| Price Range |
| 1.9 to 2 million (including temporary scaffolding work) |
| Construction Period |
| 7 days |
| Completion Month |
| October 2024 |
Our Proposal
The existing roofing material was asbestos-containing tile U. Tile U is now discontinued, and partial replacement is not possible.
The condition of the roof showed severe cracking overall, and as per other companies’ assessments, the only way to stop the leaks was to completely replace the roof.
To allow the customer to consider their options, we provided emergency measures for the leaks.
Since there are areas with a gentle slope, we proposed the vertical roofing material, Ritohira Lock, which is suitable for low slopes!
Since our price was significantly lower than other companies, the customer entrusted the work to us!
As the final cost was lower than initially expected, the customer decided to upgrade to roofing material with insulation and entrusted the work to us!
Check for Warranty and Aftercare Services
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, there may be cases where repairs are done for free within that warranty period.
The warranty period varies depending on the contractor and the type of work, but it is generally set between 1 to 10 years.
Emergency measures or partial repairs often do not come with a leak warranty.
Additionally, some contractors offer after-sales services separate from warranties, so it’s important to check whether the contractor you are considering has warranties and after-sales services.
Kakeru Koumuten Co., Ltd. provides a leak warranty for both roof overlay work and roof replacement work.
Similarly, for exterior walls, a leak warranty is included for exterior wall overlay work, replacement work, and 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)
When requesting roof renovations or leak repairs, be sure to get estimates from multiple contractors.
Even for the same repair work, the costs can vary between contractors, as well as the warranties and after-sales services offered.
Additionally, obtaining multiple estimates makes it easier to negotiate prices.
To request your desired repair contractor at a lower price, obtaining estimates from multiple contractors is essential.
If a leak occurs, it’s natural to feel anxious, but
first, perform emergency measures, and if you proceed with repairs, taking your time to consider will lead to a satisfactory outcome!
Kakeru Koumuten is happy to assist with emergency measures for leaks!
Check if the company conducts leak investigations and roof repairs in-house
Leaks can sometimes be easily identified, while in other cases, it can be difficult to pinpoint 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 repairs in the wrong areas or suggesting ineffective leak repairs.
Moreover, having to investigate and then request a subcontractor adds unnecessary time and costs.
By having the knowledge and experience to conduct the work in-house, responsible and cost-effective leak repairs can be carried out 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 repair costs for areas prone to leaks.
|
Repair Details |
Average Cost |
|
Partial replacement of roofing materials |
¥10,000 – ¥20,000 |
|
Roof replacement (re-roofing) |
From ¥500,000 |
|
Roof overlay (cover method) |
From ¥400,000 |
|
Replacement/repair of ridge metal |
From ¥10,000 |
|
Skylight repair |
From ¥10,000 |
|
Exterior wall and joint repairs |
From ¥10,000 |
|
Repair of coping metal |
From ¥10,000 |
|
Waterproofing work for balconies and rooftops |
From ¥80,000 |
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.
Since we can assemble temporary scaffolding and perform 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 perform quick roof repairs.


●We store materials and tools related to roofing and painting work!
Since we have all the necessary components for leak repairs, we can respond quickly!
Customer Reviews
Service Areas
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo Metropolis.
Contact page for Kakeru Koumuten Co., Ltd. is here!
Mitaka City, Tokyo Area List
Iguchi, Mitaka City / Kichijoji, Mitaka City / Osawa, Mitaka City / Kamirenjaku, Mitaka City / Kitano, Mitaka City / Shimorenjaku, Mitaka City / Shinkawa, Mitaka City / Jindaiji, Mitaka City / Nakahara, Mitaka City / Nozaki, Mitaka City / Mure, Mitaka City
Possible Subsidies and Grants for Roof Leak Repairs in Mitaka City, Tokyo
In Mitaka City, Tokyo, the following subsidies may be available for roof leak repairs. For details, please contact our company or your local government. (As of February 2025)
Subsidy Program for Seismic Renovation of Wooden Houses
This program subsidizes part of the costs
To mitigate damage during an earthquake, this program provides subsidies for seismic renovation work (seismic retrofitting, simple renovations) for houses diagnosed as “likely to collapse” or “highly likely to collapse” based on the Mitaka City Wooden House Seismic Diagnosis Subsidy Guidelines.
Please consult with the Housing Policy Division in advance.
Eligible Houses
The following 1 and 2 apply to eligible houses.
- The house must have undergone a seismic diagnosis based on the Mitaka City Wooden House Seismic Diagnosis Subsidy Guidelines and been diagnosed as “likely to collapse” or “highly likely to collapse.” (If the house to be renovated is shared, consent from all co-owners is required.)
- Renovations, repairs, or expansions aimed at improving seismic resistance must be carried out.
Notes
- The use of subsidies is limited to once per residence.
- Before contracting the work, it is necessary to complete the application process and receive the notification of subsidy approval.
- Subsidies will be transferred to the designated account by the city after the submission of the completion report and the issuance of the subsidy confirmation notification.
Requirements for Subsidy Issuance
Requirements for Subsidy for Seismic Renovation Work
- The Building Guidance Division will conduct a site survey, and after consultation with the applicant, a report based on the Building Standards Act must be submitted. Depending on the results of the site confirmation, guidance may be provided by the Building Guidance Division. If the construction plan does not comply with this guidance, seismic renovation subsidies cannot be obtained. (Correction of violations such as slant line restrictions, building coverage ratio, and floor area ratio)
- Seismic renovation work must comply with current seismic standards and relevant laws such as the Building Standards Act.
- A seismic renovation work plan (hereinafter referred to as “reinforcement design document”) must be created based on the results of the seismic diagnosis, and the work must be carried out according to the reinforcement design document under construction supervision. However, this does not apply to cases where the construction supervision is conducted by the contractor.
Requirements for Subsidy for Simple Renovation Work
At the time of application, drawings and cost estimates that clarify the content of the work aimed at improving seismic resistance are required.
Amount of Subsidy
Households with Disabilities and Elderly Households
Half of the costs incurred for seismic renovation work (excluding consumption tax), with a maximum limit of 500,000 yen for seismic renovation work and 300,000 yen for simple renovation work.
Other Households
One-third of the costs incurred for seismic renovation work (excluding consumption tax), with a maximum limit of 500,000 yen for seismic renovation work and 300,000 yen for simple renovation work.
※Excerpt from Mitaka City HP
About the Mitaka City Wooden House Seismic Renovation Work Subsidy System
Features of Mitaka City, Tokyo
Mitaka City is located in the western part of central Tokyo and is a green and tranquil town that retains the charm of Musashino. The city is known for its quiet residential areas and cultural, sophisticated atmosphere.
The climate is mild and comfortable, characterized by a gentle climate throughout the four seasons. Inokashira Park, where cherry blossoms can be enjoyed in spring and autumn leaves in fall, is beloved by the citizens.
Transportation access is very convenient, with the JR Chuo Line, Sobu Line, and Keio Inokashira Line available. It takes about 15 minutes from Mitaka Station to Shinjuku and less than 30 minutes to Tokyo Station, making it very convenient for commuting and schooling.
As for tourist attractions, the “Ghibli Museum, Mitaka” is famous and attracts many tourists from both domestic and abroad. Additionally, Inokashira Park is a popular spot for nature walks, offering various ways to enjoy the zoo, pond, and walking paths within the park. The city also has spots associated with the literary figure Osamu Dazai, allowing visitors to enjoy history and culture.
Our company has undertaken many roofing projects in the charming Mitaka City, Tokyo. In addition to roof overlay work 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 about any sudden troubles!
Summary
Our company has undertaken many roofing projects in Mitaka 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 want 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 completely 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.
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!




