If you are looking for a roof repair contractor in Aoba-ku, Yokohama,
Kakeru Koumuten Co., Ltd. is here to help
Kakeru Koumuten Co., Ltd. is an exterior renovation company specializing in roof repairs and leak repairs in Aoba-ku, Yokohama.
We handle the most roof and leak repairs in Aoba-ku.
If you are considering a roof renovation, please feel free to consult with Kakeru Koumuten Co., Ltd.!
We provide a wide range of services, including sudden leaks after typhoons and roof repairs based on the age of the building.
For those in need in Aoba-ku, Yokohama, we offer same-day service, so please feel free to contact us.
How to Choose a Leak Repair Contractor
There are many contractors for leak repairs in Yokohama, 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 whether they conduct leak investigations and roof repairs in-house
By confirming the above four points, you will be able to choose a contractor that will respond properly.
Extensive Experience in Roof Repairs and Leak Repairs
Roof repair contractors often have websites that showcase their project achievements.
The construction achievements 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 leak repairs.
Kakeru Koumuten’sroof repair case studies in Aoba-ku, Yokohama
| Construction Location |
| Aoba-ku, Yokohama |
| Work Details |
| Temporary Scaffolding Installation Roof Overlay (Cover Method) |
| Existing Substrate/Materials Used |
|
Existing Roofing Material: Slate (Zarufugrassa) Materials used for roof overlay (cover method): Super Galtect |
| Price Range |
| Approximately 800,000 yen |
| Construction Period |
| 2 weeks |
| Completion Month |
| December 2021 |
| Inquiry Details |
| We received an inquiry from a customer living in Aoba-ku, Yokohama, stating, “Roof fragments are falling off, and leaks have started occurring, so I am considering roof leak repair.” |
Our Proposal
This customer’s home is 21 years old, and the existing roofing material is “Zarufugurassa”.
This material is very prone to cracking and is not suitable for painting.
The existing condition showed numerous cracks and breaks across the entire roof.
Considering the costs, the state of the roof, and the customer’s preferences, we proposed a roof overlay (cover method) for a complete roof renovation.
Additionally, the customer requested a roofing material that would “last long with one renovation” and mentioned that “the second floor is hot,” so we suggested the highly durable and insulated Super Galtect.
This time it was a complete roof repair, but if there are plans to move or if the customer does not intend to live there long-term, a partial roof repair with lower costs is also an option.
We will listen to the customer’s future life plans and propose the most suitable repair method.
Check for warranties and aftercare services
When choosing a leak repair contractor, make 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, if the contractor offers a warranty period, repairs may be done for free within that period.
The warranty period varies by contractor and type of work, but it is generally set between 1 to 10 years.
Emergency measures or partial repairs often cannot 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 and roof replacement work.
Similarly, for exterior walls, a leak warranty is included for exterior wall cover work, replacement work, and joint sealing work.
Regarding aftercare maintenance, we send out annual DM, making aftercare maintenance possible every year.
Obtain estimates from multiple contractors (at least three)
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, as well as the warranties and aftercare services offered.
Additionally, obtaining multiple estimates makes it easier to negotiate prices.
To request your desired contractor at a lower price, obtaining estimates from multiple contractors is essential.
When a leak occurs, it can be quite stressful, but first, performing at least a temporary fix and calmly considering the situation can lead to a construction process without regrets!
Kakeru Koumuten Co., Ltd. is happy to respond to requests for temporary fixes 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 pinpoint the source of the leak, requiring knowledge and experience.
If a contractor completely outsources roof repairs and leak fixes to subcontractors, they may lack the necessary knowledge and experience, leading to repairs in the wrong areas or suggestions for ineffective leak repairs.
Additionally, relying on subcontractors after an investigation can incur extra time and costs.
By having the knowledge and experience to perform the work in-house, we can provide prompt and cost-effective responsible leak repairs.
Kakeru Koumuten Co., Ltd. conducts everything from leak investigations to construction in-house!
About Kakeru Koumuten Co., Ltd.
Kakeru Koumuten Co., Ltd. is a remodeling company based in Aoba-ku, Yokohama, Kanagawa Prefecture, specializing in roofing, painting, and scaffolding with completely in-house construction for exterior renovations.
We assemble temporary scaffolding in-house, allowing us to perform roof repairs quickly and cost-effectively.
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 roof and painting work!
Since we have all the necessary components for leak repairs, we can respond quickly!
About the Cost of Leak Repair Work
The table below shows the average repair costs for areas prone to leaks.
|
Repair Details |
Cost Estimates |
|
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 ridge metal |
From ¥10,000 |
|
Skylight repair |
From ¥10,000 |
|
Repair of exterior walls and joints |
From ¥10,000 |
|
Repair of coping metal |
From ¥10,000 |
|
Waterproofing work for balconies and rooftops |
From ¥80,000 |
For detailed pricing, click here!!
For exterior renovations in Aoba-ku, Yokohama, click here!
For exterior wall painting in Aoba-ku, Yokohama, click here!!
For roof renovations in Aoba-ku, Yokohama, click here!
For exterior wall overlay work in Aoba-ku, Yokohama, click here!
Customer Reviews
Service Areas
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.
Click here for the contact page of Kakeru Koumuten Co., Ltd.!
List of Areas in Aoba-ku, Yokohama
Aoba-ku Aobadai / Aoba-ku Akane-dai / Aoba-ku Azamino / Aoba-ku Azamino Minami / Aoba-ku Ichigaocho / Aoba-ku Utsukushigaoka / Aoba-ku Utsukushigaoka Nishi / Aoba-ku Umegaka / Aoba-ku Egotada / Aoba-ku Eda Kita / Aoba-ku Eda Cho / Aoba-ku Eda Nishi / Aoba-ku Enokigaoka / Aoba-ku Oba Cho / Aoba-ku Onda Cho / Aoba-ku Kakinokidai / Aoba-ku Katsuradai / Aoba-ku Kamitayamoto Cho / Aoba-ku Kamoshida Cho / Aoba-ku Tetsumachi / Aoba-ku Kurosuda / Aoba-ku Sakuradai / Aoba-ku Satsukigaoka / Aoba-ku Jike Cho / Aoba-ku Shimotayamoto Cho / Aoba-ku Shiratoridai / Aoba-ku Shin Ishikawa / Aoba-ku Susukino / Aoba-ku Sumiyoshidai / Aoba-ku Tachibanadai / Aoba-ku Tana Cho / Aoba-ku Chigusa-dai / Aoba-ku Tsutsuji ga Oka / Aoba-ku Nara Cho / Aoba-ku Nariai Cho / Aoba-ku Fujigaoka / Aoba-ku Matsukaze-dai / Aoba-ku Mitakedai / Aoba-ku Midoriyama / Aoba-ku Moegino / Aoba-ku Moto Ishikawa Cho / Aoba-ku Momino Ki-dai / Aoba-ku Wakakusa-dai / Aoba-ku Misuzugaoka / Aoba-ku Nara
Possible Subsidies and Grants for Leak Repairs in Aoba-ku, Yokohama
In Aoba-ku, Yokohama, the following subsidies may be available for leak repairs. For details, please contact our company or your local government. (As of February 2025)
This program aims to create a safe city that is resilient to earthquakes, and the city of Yokohama conducts “earthquake resistance assessments” for wooden individual homes. For citizens wishing to undergo an earthquake resistance assessment, the mayor dispatches certified “earthquake resistance assessors for wooden houses” to conduct the survey and support citizens’ earthquake resistance measures.

https://www.city.yokohama.lg.jp/business/bunyabetsu/kenchiku/bosai/taishin/hojokinshienseido/mokutai/taishin/mokushindan.html
The Yokohama City Wooden House Earthquake Resistance Renovation Promotion Project is a program where the city subsidizes a portion of the costs for earthquake resistance renovation work on wooden individual homes.
About the Yokohama City Wooden House Earthquake Resistance Renovation Subsidy Program
https://www.city.yokohama.lg.jp/business/bunyabetsu/kenchiku/bosai/taishin/hojokinshienseido/mokutai/mokukaishu/mokukaishu.html
Features of Aoba-ku, Yokohama
Aoba-ku, Yokohama is an area that combines nature with convenient urban functions!
Located in the northwest part of Yokohama City, it covers an area of approximately 35km2, making Aoba-ku the second largest ward in Yokohama City after Totsuka-ku.
It has excellent transportation access, being within a 30-minute train ride to Shibuya Station, and many commuters and students reside here.
The area is characterized by quiet residential neighborhoods, rolling hills, and lush landscapes along the Tsurumi River that flows through the central part of the ward, offering picturesque rural scenery.
Since residential areas are primarily developed on hilly terrain, there tends to be many slopes, but there are plenty of relaxing spots,especially natural playgrounds like “Kodomo no Kuni” that make it an attractive area for families and those raising children.
Our company is based in Aoba-ku, Yokohama, and we handle many roofing projects in the area.
We are happy to assist with partial roof repairs such as roof overlay work, roof replacement, and leak repairs, as well as other repairs! Please feel free to consult us for any urgent issues!
Summary
Whether you need
“Just a temporary fix for a 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 roofing and exterior painting completely in-house.
We are confident that our costs, quality, and organization for exterior work are unmatched compared to other companies!
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!




