Leave Waterproofing Work in Miura City, Kanagawa Prefecture to Kakeru Koumuten Co., Ltd.!
If you are looking for a waterproofing contractor in Miura City
Contact Kakeru Koumuten
Kakeru Koumuten is a company specializing in exterior renovations in Kanagawa Prefecture.
We receive many requests for waterproofing work in Miura City, ranging from single-family homes to apartment buildings.
“Reasons why Kakeru Koumuten is chosen in Miura City”
“About the costs of waterproofing work”
“How to choose a waterproofing contractor”
“Subsidies and grants available for waterproofing work in Miura City”
We will explain the above four points!
This will definitely be helpful for customers considering waterproofing work in Miura City, so
please take a look!
Reasons why Kakeru Koumuten is chosen for waterproofing work in Miura City
Regarding why our company is entrusted with waterproofing work by customers in Miura City,
One reason is that we have a base in Kanagawa Prefecture, but
“Our strengths in waterproofing work that cannot be imitated by other companies”
have received high praise from many customers.
We have absolute confidence in “cost,” “quality,” and “plans,” so
we would appreciate it if you could compare our estimates with those of other companies.
Because we are confident, we welcome competitive estimates!
1．Equipment specialized in exterior renovations
At Kakeru Koumuten Co., Ltd., we have organized the following warehouses and material storage areas to provide more affordable and faster exterior renovations such as waterproofing work.
We have established five bases centered around Aoba-ku, Yokohama for material storage and showrooms.
In-house Scaffolding Materials
We own the scaffolding materials necessary for temporary scaffolding required for waterproofing work, allowing us to assemble temporary scaffolding in-house.
By performing scaffolding work with our own scaffolding team instead of outsourcing, we can also reduce the costs associated with scaffolding work.
Since everything is done in-house, we can significantly reduce costs with a shorter construction period!
We have enough scaffolding materials for approximately 50 single-family homes!
Storage of Materials in Our Large In-house Warehouse
We store roofing materials and waterproofing components.
By ordering a large quantity of materials at once, we can purchase materials at a lower cost!
Additionally, we always have waterproofing components in stock, allowing us to respond quickly to emergency waterproofing work!
In-house waste separation
In waterproofing work, various waste materials are generated.
Most contractors dispose of them all together, but by sorting and recycling waste materials, significant cost reductions in waste disposal can be achieved.
Exterior Renovation Dedicated Showroom
In our showroom, not only can you have meetings, but you can also
directly check the actual structure and colors.
2．Complete In-House Construction
One of Kakeru Koumuten’s major strengths is complete in-house construction.
From inquiry to project completion, everything is handled by Kakeru Koumuten Co., Ltd. This allows us to keep costs down while providing high-quality waterproofing work.
Additionally, one representative will assist you from the estimate to the completion of the work.
Since the same person will handle sales and construction management, smooth communication is possible.
We are confident in our construction plans and costs, so we welcome competitive estimates!
3. Various Permits and Skilled Workers
We have obtained permits for construction work and industrial waste collection and transportation!
We also have national qualified personnel on staff, and we are confident in our construction techniques.
We are capable of handling large-scale waterproofing projects, such as those for factories!
4. Warranty and Aftercare
Waterproofing work comes with a guarantee!
Depending on the type of waterproofing work, we provide a 5 to 10-year leak guarantee.
If you have any questions about the guarantee, please click on the image above!
In the unlikely event that leaks are not resolved after the waterproofing work, we will take full responsibility and address the issue!
Additionally, aftercare maintenance is available every year, and we will send you a DM notification for aftercare maintenance once a year.
During aftercare maintenance, we will check the entire waterproofing system and assess the condition of any deterioration.
5. Flexible and Prompt Response
Our company is equipped to handle various troubles and situations.
If we cannot access the rooftop for waterproofing checks, we will utilize drones to assess the condition.
During leak investigations, we can also conduct inspections using thermal imaging cameras.
We will respond according to your wishes.
We also accept emergency measures for sudden leaks!
Since our sales and construction management are not separated, one dedicated representative will handle everything from the estimate to the completion of the work!
Changing representatives frequently can lead to miscommunication regarding the details and precautions of the work, which could cause issues, so we maintain a system where the representative remains the same.
6. Human Resource Development
To improve our skills, we create various building models and conduct practical training.
We regularly provide technical training so that each staff member can respond to various buildings.
Subsidies and Grants for Waterproofing Work in Miura City
If damage from natural disasters is recognized, it may be covered by fire insurance.
Considerations for waterproofing damage due to natural disasters may include “holes in waterproof sheets caused by flying objects or falling debris due to wind disasters.”
If you are unsure whether it is covered by fire insurance, please feel free to contact us!
Miura City Housing Renovation Subsidy Program
In Miura City, subsidies are provided for renovations of houses and condominiums (excluding rentals) to promote economic revitalization within the city and improve the living environment for residents.
Information on Miura City Housing Renovation Subsidy Program
Fiscal Year 7 Housing Renovation Subsidy Program Phase 1 Pamphlet
What is the Miura City Condominium Management Plan Certification System?
The “Condominium Management Plan Certification System” is a system where local governments certify individual condominium management plans created by management associations if they meet certain standards.
If a condominium obtains certification for its management plan and meets certain conditions (more than 10 units that are over 20 years old, have previously conducted longevity improvement work, and are conducting a second round of longevity improvement work in fiscal years 5-6), it can receive a reduction in fixed property tax for the following year under the condominium longevity tax system.
Miura City Condominium Management Plan Certification System
【Pamphlet】Miura City Condominium Management Plan Certification System
Ministry of Land, Infrastructure, Transport and Tourism (Condominium Longevity Tax System)
About the Cost of Waterproofing Work
⇧ Construction Menu | For information on waterproofing costs, click here
Customer Feedback
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customer reviews
Asao-ku, Kawasaki City | We received reviews about the ridge cap and rain gutter replacement work!
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customer reviews
Kohoku-ku, Yokohama | We received reviews about the roof overlay (cover method)!
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customer reviews
Kohoku-ku, Yokohama | We Received Reviews About Exterior Painting!
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customer reviews
Hodogaya-ku, Yokohama | We received reviews about our exterior fence construction!
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customer reviews
Tsurumi-ku, Yokohama | We received reviews about roof and exterior wall painting, as well as metalwork and rain gutter replacement work!
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customer reviews
Higashiyamato City, Tokyo | We received reviews about exterior painting and roof overlay (cover method)!
Examples of Waterproofing Work
| Construction Details |
| Urethane waterproofing ventilation buffer method / High-strength urethane type Existing waterproofing: PVC sheet waterproofing |
| Materials Used |
| Waterproofing: AGC polymer building materials / Saracene A (high-strength urethane) Ventilation sheet: QV sheet Vent pipe: Stainless steel Replaced with renovation drain |
| Price Range |
| 700,000 to 800,000 yen |
| Construction Period |
| Approximately 2 weeks |
| Completion Month |
| May 2024 |
| Inquiry Details |
| We received the following inquiries from our customer: ・There are wrinkles and bulges in the waterproof sheet on the roof, so I am worried about leaks. ・I would like an estimate for a complete waterproof renovation, not just partial repairs or a top coat. ・I learned that urethane waterproofing has high waterproofing properties, so I would like an estimate for urethane waterproofing. ・Since this is my first waterproofing project, I would like to compare estimates. |
Our Proposal
Since you expressed a desire to renovate using a long-lasting method rather than protective agents like top coats, we proposed a complete “urethane waterproofing project” for the roof.
If urethane waterproofing is applied using a bonding method, air rising from the building can cause bulges in the waterproof layer, so we proposed the “urethane waterproofing ventilation buffer method.”
The ventilation buffer method involves applying a ventilation buffer sheet over the entire area before installing the urethane waterproofing.
By applying the ventilation buffer sheet first, the air rising from the building is suppressed by the ventilation sheet and expelled through the “ventilation pipe.”
This can prevent the most common issue with waterproofing, which is bulging of the waterproof layer!
After explaining the materials and methods, we were entrusted with the project among four competing estimates!
Timing for Waterproofing Work
If Leaks Have Already Occurred
If leaks have already occurred, it is necessary to address the issue promptly before the damage spreads.
If left unattended, it can adversely affect the interior and underlying structures, so it is essential to stop the leaks quickly.
Bulges or Cracks in the Waterproof Layer
If the waterproof section is cracked, it can lead to rainwater intrusion.
If the waterproof layer is bulging, it indicates that moisture is accumulating within the layer.
Bulging can lead to cracks, which can result in leaks, so early detection and action are necessary.
Moss or Mold Growth
Moss or mold can develop due to the accumulation of moisture or rainwater.
This can be caused by poor drainage or sinking of the waterproof layer due to aging.
If the Durability Period Has Been Exceeded
Generally, the durability period for waterproofing work is between 10 to 20 years.
Of course, the durability period can vary depending on the construction method and materials, but for some types of waterproofing, it is recommended to apply a surface protective agent (top coat) approximately every 8 years (such as urethane waterproofing or FRP waterproofing).
We recommend regular inspections starting from 5 years after construction.
Understanding the types of waterproofing and performing appropriate maintenance is essential.
If you are unsure about the type of waterproofing, please send us a photo via email or LINE, and we will help you determine it!
Types of Waterproofing Work
1. Urethane Waterproofing
Urethane waterproofing is a method that involves applying liquid polyurethane resin onto the waterproofing surface.
Since it is liquid before curing, it can be applied to complex shapes, and unlike sheet waterproofing, it can be installed without seams, which is a significant advantage.
It can be widely applied to balconies, rooftops, and more.
For more details on the advantages, disadvantages, and maintenance methods of urethane waterproofing, please refer to the article below.
For more on waterproofing work | Urethane waterproofing, click here!
2. Rubber Sheet Waterproofing
Rubber sheet waterproofing involves adhering synthetic rubber sheets to the surface to prevent water intrusion.
This type of waterproofing is commonly used on large areas such as rooftops.
Compared to urethane waterproofing, it has the advantage of faster installation since there is no waiting for drying, but it is not suitable for complex surfaces.
For more details on the advantages, disadvantages, and maintenance methods of rubber sheet waterproofing, please refer to the article below.
For more on waterproofing work | Rubber sheet waterproofing, click here!
3. PVC Sheet Waterproofing
PVC sheet waterproofing is a waterproof sheet made of polyvinyl chloride, and like rubber sheet waterproofing, it is applied to the surface to prevent water intrusion.
Similar to rubber sheets, it is not suitable for complex shapes. Although the cost is higher than rubber sheets and urethane waterproofing, its long durability is an advantage.
For more details on the advantages and disadvantages of PVC sheet waterproofing and maintenance methods, please refer to the article below.
For waterproofing work | Click here for PVC sheet waterproofing work!
4. Long Sheet Waterproofing
Long sheet waterproofing, officially known as “slip-resistant vinyl floor sheet,” is commonly applied in shared areas and staircases of apartments where people walk.
As the name suggests, it is slip-resistant and has high durability and wear resistance, making it suitable for walking areas.
Additionally, it comes in various designs, excelling in aesthetic appeal.
However, it tends to be more expensive, and since it does not overlap seams like rubber sheets or PVC sheets, it may give a slightly lower impression of waterproofing performance.
It is rarely used in areas like apartment rooftops where people do not frequently enter.
For more details on the advantages and disadvantages of long sheet waterproofing and maintenance methods, please refer to the article below.
For waterproofing work | Click here for long sheet waterproofing work!
5. FRP Waterproofing
FRP waterproofing involves creating a waterproof layer by solidifying glass mat with epoxy resin to prevent rainwater intrusion.
It is commonly applied in single-family home balconies, and the construction period is significantly short, often completed in as little as one day.
Due to its lightweight and low cost, it is estimated that about 80% of single-family home balconies use FRP waterproofing.
However, it is not suitable for construction on uneven surfaces, making it less appropriate for rooftops.
For more details on the advantages and disadvantages of FRP waterproofing and maintenance methods, please refer to the article below.
Waterproofing Work | Click here for FRP Waterproofing!
6. Asphalt Waterproofing
Asphalt waterproofing is a waterproof sheet that has asphalt permeated into synthetic fiber non-woven fabric.
The waterproofing shown in the photo is a method where asphalt waterproofing is pressed down with cinder concrete.
This waterproofing is used in buildings with large areas, such as rooftops of schools and commercial facilities.
There are various methods of asphalt waterproofing, each with its own advantages and disadvantages, but a significant advantage is its high durability.
For more detailed information on the advantages, disadvantages, and maintenance methods of asphalt waterproofing, please refer to the article below.
Waterproofing Work | Click here for Asphalt Waterproofing!
How to Choose a Waterproofing Contractor
There are many waterproofing contractors available in Miura City.
Among the numerous contractors, there are likely many who feel “I don’t know who to ask…”.
Choosing a contractor for the first time can be challenging, so I will explain 5 points to be careful about when requesting waterproofing work.
● Have extensive experience in waterproofing work
● Check for aftercare and warranty availability
● Obtain estimates from multiple contractors (at least 3 companies)
● Confirm whether they perform waterproofing work in-house
● Carefully check the details of the waterproofing estimate, including processes and materials used
By confirming the above 5 points, you will be able to choose a reliable contractor.
Check if they have extensive experience in waterproofing work
About 10-20% of waterproofing work troubles are caused by construction defects during the installation.
To prevent troubles, it is important to hire a reliable contractor with experience!
You need to refer to the contractor’s website for their construction achievements and reviews to make a judgment.
Some contractors showcase their achievements on social media platforms like Instagram, so checking those can also be effective!
It is also effective to look at waterproofing companies using review sites for reference!
A particularly recommended review site is “Google”.
Since contractors cannot delete low ratings on their own, it provides trustworthy reviews.
If there are many negative reviews or no reviews at all, it may be wise to refrain from making a request.
Kakeru Koumuten’s Waterproofing WorkSee our achievements here!
Check if there is aftercare maintenance and construction warranty
In case construction defects or issues occur after the work is done, let’s confirm if they provide a “construction warranty”!
Contractors who offer warranties are usually confident in their work, making them more trustworthy!
If waterproofing work is done, make sure to have photos taken of hidden areas during the process for confirmation!
Check for leaks during rainy weather after the waterproofing work, and if there are any issues, contact the contractor immediately as it will facilitate smooth communication shortly after the work is completed!
Also, to ensure early detection of any issues that may arise, confirm if they will conduct thorough aftercare maintenance!
Since non-specialized contractors may not notice signs of problems or troubles, having a specialized contractor perform regular aftercare maintenance can prevent issues before they occur!
Our company sends out aftercare maintenance direct mail every year, so if you wish, annual aftercare maintenance is possible!
Obtain estimates from multiple contractors (at least three)
When requesting waterproofing work, be sure to obtain estimates from multiple contractors.
We recommend obtaining estimates from at least three companies.
Even for the same waterproofing work, costs may vary between contractors, as well as warranties and after-service offerings.
Additionally, obtaining multiple estimates makes it easier to negotiate prices. To request at the lowest possible cost, it is essential to get estimates from several contractors.
When comparing estimates, be sure to check not only the costs but also the details such as “types of materials used” and “construction methods”!
Check if they perform waterproofing work in-house
Confirm whether they perform waterproofing work in-house!
If a sales company investigates and then requests a subcontractor, it will incur additional time and costs.
Moreover, there may be cases where customer requests are not fully communicated to the subcontractor, leading to troubles.
By having one company handle everything from sales to construction, responsible waterproofing work can be done quickly and cost-effectively. Kakeru Koumuten handles everything from on-site surveys to actual construction in-house!
Furthermore, in the event of leaks or troubles, if the company has its own craftsmen, they can respond to and resolve issues quickly!
Carefully Check the Details of Waterproofing Estimates, Processes, and Materials
Even for the same waterproofing work, there are various types such as “methods,” “materials,” and “processes,” and it is necessary to carry out the work using the most suitable method and materials depending on the construction site and existing substrate.
For example, even with the same urethane waterproofing, there are different types of processes such as “adhesion method” and “ventilated buffer method,” and there are various types of urethane waterproofing materials, including “high-strength specifications,” “heat-insulating specifications,” and “anti-slip specifications.” Therefore, it is essential to confirm whether the construction content is appropriate for the location!
It is important not to judge solely based on cost, but to carefully check whether “the method is appropriate for the base material?” and “are the materials suitable?”
So, if the materials used are only “urethane waterproofing materials,” let’s check the product name to confirm what kind of materials they are!
If you are looking for a waterproofing contractor in Miura City, please contact Kakeru Koumuten Co., Ltd.
Our company has handled many waterproofing projects in Miura City.
Our greatest strength is that we can perform everything from proposals to the installation of temporary scaffolding and waterproofing work in-house!
Kakeru Koumuten Co., Ltd. promises “high-quality waterproofing work at low cost”, and we have received many positive reviews from our customers.
We continue to update our construction achievements every year, and we will strive to improve quality to satisfy even more customers in the future.
We are also happy to handle small partial projects!
In addition to waterproofing work, we can perform all exterior renovations, including roofing work, exterior wall painting, and exterior wall overlay methods, in-house.
We are confident that we will not be outdone by other companies in terms of cost, quality, and organization for exterior work!
We welcome competitive estimates with confidence!
Estimates are completely free, and if our company is found to be inferior to others, you are welcome to decline!
Click here for exterior renovations in Miura City!
Click here for exterior wall painting in Miura City!
Click here for roofing renovations in Miura City!
Click here for leak repairs in Miura City!
Features of Miura City
Miura City, located at the southern tip of the Miura Peninsula in Kanagawa Prefecture, is a nature-rich city surrounded by the sea on three sides. The west faces Sagami Bay, the east faces the Uraga Channel (Tokyo Bay), and the south faces the Pacific Ocean, with Jogashima floating at the southern tip. The Miura Hills spread throughout the city, characterized by plateaus at an elevation of 40 to 60 meters and a hilly terrain.
The climate is warm throughout the year due to the influence of the Kuroshio Current, with relatively cool summers and mild winters, making it a comfortable environment. Compared to Tokyo, summer and winter temperatures are about 1 degree lower, and snowfall is rare, allowing for a pleasant living experience.
For transportation access, the Keihin Kyuko Electric Railway Kurihama Line runs through the city, with two stations: Miura Kaigan Station and Misakiguchi Station. Since Misakiguchi Station is the starting station, there is the advantage of being able to sit during morning commutes and school trips. It takes about 70 minutes to reach Shinagawa Station and about 50 minutes to Yokohama Station from Miura Kaigan Station. Additionally, Keihin Kyuko buses operate within the city, making it convenient to travel to major tourist spots and living hubs.
In this way, Miura City is an attractive city with a rich natural environment, a mild climate, and good transportation access, making it a focus for tourism and relocation.
Kakeru Koumuten Co., Ltd. offers exterior construction services in Miura City as well. We provide a wide range of services including waterproofing, roof replacement, roof overlay (cover method), exterior wall painting, and roof painting.
If you have any concerns, please feel free to consult with us!
Waterproofing Service Areas
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo Metropolis.
List of Areas in Miura City
Miura City Onoue-cho / Miura City Kaigai-cho / Miura City Misakihara-cho / Miura City Sakae-cho / Miura City Shiraishi-cho / Miura City Shiroyama-cho / Miura City Suwa-cho / Miura City Tenjin-cho / Miura City Hatsuose-cho Irie / Miura City Hatsuose-cho Koenbo / Miura City Hatsuose-cho Shimomiya / Miura City Hatsuose-cho Mito / Miura City Hatsuose-cho Wada / Miura City Hara-cho / Miura City Harumi-cho / Miura City Higashioka-cho / Miura City Misaki / Miura City Misaki-cho Koajiro / Miura City Misaki-cho Jogashima / Miura City Misaki-cho Rokugai / Miura City Misaki-cho Moriso / Miura City Minamishitoura-cho Kaneda / Miura City Minamishitoura-cho Kamimiyata / Miura City Minamishitoura-cho Kikuna / Miura City Minamishitoura-cho Bishamon / Miura City Minamishitoura-cho Matsuwa / Miura City Miyakawa-cho / Miura City Mukogasaki-cho
Consultations via LINE are also very welcome◎
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contact Kakeru Koumuten Co., Ltd.
Kakeru Koumuten is a young company whose team is, on average, in their late twenties, but our skills are second to none.
Our greatest strength is that we handle scaffolding, roofing and painting entirely in-house. In an industry where these tasks are usually divided among contractors, our complete service simplifies project management and helps keep costs down. Above all, if a problem arises, we respond promptly.
We proudly describe ourselves as the youngest and most helpful renovation company in Kanagawa!
