If you are looking for a roof repair contractor in Ashigarakami-gun, Kanagawa (Nakai, Oi, Matsuda, Yamakita, Kaisei), 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 Ashigarakami-gun, Kanagawa (Nakai, Oi, Matsuda, Yamakita, Kaisei).
If you are considering a roof renovation, please consult with Kakeru Koumuten Co., Ltd.!
We respond widely to sudden leaks after typhoons and roof repairs according to the age of the building.
If you are in need in Ashigarakami-gun, Kanagawa (Nakai, Oi, Matsuda, Yamakita, Kaisei),
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 contractors for leak repairs in Ashigarakami-gun, Kanagawa (Nakai, Oi, Matsuda, Yamakita, Kaisei), 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 existence 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 a website where they showcase their project achievements.
Project achievements may explain the following items, so check if they have performed repairs similar to 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 reassurance 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 roof repair case studies in Ashigarakami-gun, Kanagawa Prefecture


Our Proposal
Since you requested to keep costs down while using the overlay method, we proposed the Nichiha/Alma overlay method.
We suggested roofing sheets and purlins based on the durability of the roofing materials!
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, repairs may be 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 repairs or partial repairs often do not come with a leak warranty.
Additionally, some contractors offer after-service separate from the warranty, so it’s important to check if the contractor you are considering has warranties andafter-service available.
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 overlay and replacement work, as well as for joint sealing work.
As part of our after-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 get estimates from multiple contractors.
Even for the same repair work, the costs and warranties or after-services may differ between contractors.
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 emergency measures, and if you decide to proceed with repairs, taking your time to consider will lead to a satisfactory outcome!
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 easily 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 may lack the necessary knowledge and experience, leading to repairs of incorrect areas or suggesting unnecessary leak repairs.
Moreover, having to investigate and then request subcontractors can incur additional 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 leak investigations and 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 |
Cost Estimate |
|
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 |
|
Exterior wall and joint repair |
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!
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.
List of Ashigarakami District
Nakai Town / Oi Town / Matsuda Town / Yamato Town / Kaisei Town
Possible Subsidies and Grants for Roof Leak Repairs in Ashigarakami District, Kanagawa Prefecture (Nakai Town, Oi Town, Matsuda Town, Yamato Town, Kaisei Town)
In Ashigarakami District, Kanagawa Prefecture (Nakai Town, Oi Town, Matsuda Town, Yamato Town, Kaisei Town), the following subsidies may be available for roof leak repairs. For details, please contact our company or your local municipality. (As of February 2025)
[Nakai Town] Housing Subsidies
In Nakai Town, there are various subsidy programs such as the “Wooden House Earthquake Resistance Renovation Subsidy Program,” which provides partial funding for those undertaking earthquake resistance renovations for wooden houses, and the “Vacant House Utilization Promotion Project Subsidy,” which offers partial funding for child-rearing households and young couples acquiring and renovating vacant houses for the purpose of settling in Nakai Town.
For more details on Nakai Town’s housing subsidies, click here
[Oi Town] Existing Housing Insulation Renovation Subsidy / Multi-Generational Living Housing Renovation Subsidy
Oi Town has a program called “Existing Housing Insulation Renovation Subsidy” that provides partial funding for those undertaking insulation renovations in existing homes to promote the use of renewable energy and energy conservation, thereby reducing CO2 emissions from the household sector and addressing global warming.
Additionally, there is a program called “Multi-Generational Living Housing Renovation Subsidy” aimed at promoting migration and settlement in Oi Town, which provides subsidies to eligible individuals.
For more information about the existing housing insulation reform subsidy in Oi Town, click here
【Matsuda Town】Vacant House Renovation Subsidy / Store Renovation Support Subsidy
Matsuda Town has a system called “Vacant House Renovation Subsidy” that provides subsidies to those who carry out renovations necessary for living in vacant houses within Matsuda Town, aimed at promoting the utilization of vacant houses and supporting settlement in Matsuda Town. Those wishing to receive the subsidy should consult and apply to Matsuda Town before carrying out renovations.
Additionally, there is a system called “Store Renovation Support Subsidy” aimed at enhancing the overall appeal of stores in Matsuda Town to revitalize the local economy and promote commerce by creating vibrancy and industry.
For more information about the vacant house renovation subsidy system in Matsuda Town, click here
【Recruitment Information】Vacant House Renovation Subsidy【PDF】
For more information about the store renovation support subsidy in Matsuda Town, click here
【Yamakita Town】Housing Creation Support System
Yamakita Town has a housing creation support system called “Marriage New Life Support Project” that provides partial subsidies for renovation costs to newly married households as a measure to strengthen countermeasures against declining birthrates. For applications, please consult the Settlement Measures Division at Yamakita Town Hall in advance.
Additionally, there is a system called “Vacant House Utilization Subsidy” aimed at promoting the utilization of vacant houses for newcomers and those relocating, as well as for property owners planning to rent to newcomers and those relocating, which provides assistance for the necessary repair costs of properties registered in the vacant house bank. Please note that application before construction and reporting after construction are required.
For more information about the Marriage New Life Support Project in Yamakita Town, click here
For more information about the vacant land utilization subsidy in Yamakita Town, click here
【Recruitment Information】Housing Support System【PDF】
【Kaisei Town】Subsidy System for Seismic Diagnosis Costs and Seismic Renovation Work for Wooden Houses
In Kaisei Town, amid concerns about the imminent risk of the Tokai Earthquake and the Western Kanagawa Earthquake, we are promoting the creation of a safe town resilient to earthquakes based on the Seismic Renovation Promotion Plan. Therefore, we provide subsidies for seismic diagnosis costs and seismic renovation work for individual wooden houses.
【Recruitment Information】Guidelines for Subsidy for Seismic Renovation Work for Wooden Houses【PDF】
Features of Ashigarakami District, Kanagawa Prefecture
Ashigarakami District in Kanagawa Prefecture consists of five municipalities: Oi Town, Kaisei Town, Nakai Town, Matsuda Town, and Yamakita Town, each with its unique charm.
Oi Town has about 60% of its area in hilly terrain, where farming and mandarin orange cultivation thrive due to the warm climate. In the flat areas, rice paddies along the Sakawa River spread out, and pear and fig cultivation also takes place. Additionally, the Oi Matsuda Interchange on the Tomei Expressway is nearby, providing excellent transportation access.
Kaisei Town is the smallest town in Kanagawa Prefecture, located on an alluvial fan in the Sakawa River basin, featuring flat and fertile land. With a warm climate and high transportation convenience, it offers a comfortable living environment.
Nakai Town does not have a train station, but since the opening of the Hadano Nakai Interchange on the Tomei Expressway, transportation access has improved. With the revitalization of the town, there has been an influx of businesses. The town is also focusing on childcare support and educational environment development, creating a livable environment.
Matsuda Town is surrounded by the Tanzawa Mountains and blessed with rich nature. It has both Matsuda Station on the JR Gotemba Line and Shin-Matsuda Station on the Odakyu Line, allowing access to the city center. Additionally, Matsuda Mountain’s herb garden and famous cherry blossom spots offer seasonal scenic beauty.
Yamakita Town is located at the westernmost tip of Kanagawa Prefecture, characterized by a warm and stable climate throughout the year. There are three JR Gotemba Line stations within the town, and particularly around Yamakita Station, there are attractions like the “Yamakita Railway Park,” known as a tourist spot. Furthermore, natural attractions abound, such as “Yamakita Tsubura Park,” which offers views of Mount Fuji, and the “Hōki Cedar,” said to be 2,000 years old.
Ashigarakami-gun is a nature-rich area surrounded by the Sakawa River and the mountains of Tanzawa, yet it is well-equipped with transportation infrastructure such as the Tomei Expressway, Ken-O Expressway, Odakyu Line, and JR Gotemba Line, providing excellent access to the metropolitan area. Agriculture and forestry are thriving here, with each region boasting unique industries and tourist resources, as well as preserved townscapes that reflect its history and culture. In recent years, support for relocation and improvements in the child-rearing environment have progressed, making it an area that combines nature and convenience.
Our company has undertaken numerous roofing projects in the attractive Ashigarakami-gun, Kanagawa Prefecture. In addition to roof overlay work and roof replacement, we are also 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 handles many roofing projects in Ashigarakami-gun, Kanagawa Prefecture (Nakai Town, Oi Town, Matsuda Town, Yamakita Town, Kaisei Town).
We are happy to assist with roof overlay work, roof replacement, leak repairs, and other partial roof 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 roofing and exterior painting completely in-house.
We are confident that we won’t be outdone in terms of cost, quality, and organization compared to other companies in exterior construction!
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!




