Leave Waterproofing Work in Kanagawa-ku, Yokohama to Kakeru Koumuten Co., Ltd.!
If you are looking for a waterproofing contractor in Kanagawa-ku, Yokohama
Please contact Kakeru Koumuten
Kakeru Koumuten is a company specializing in exterior renovations based in Yokohama.
We receive many requests for waterproofing work in Kanagawa-ku, from single-family homes to apartment buildings.
“Reasons why Kakeru Koumuten is chosen in Kanagawa-ku”
“About the costs of waterproofing work”
“How to choose a waterproofing contractor”
“Subsidies and grants available for waterproofing work in Kanagawa-ku”
We will explain the above four points!
This will definitely be helpful for customers considering waterproofing work in Kanagawa-ku, Yokohama, so
please take a look!
Reasons why Kakeru Koumuten is chosen for waterproofing work in Kanagawa-ku, Yokohama
Regarding the reasons why our company is entrusted with waterproofing work by customers in Kanagawa-ku, Yokohama,
One reason is that we have a base in Yokohama. However,
“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.Facilities Specialized in Exterior Renovation
Kakeru Koumuten Co., Ltd. has prepared the following warehouses and material storage areas to provide more affordable and faster exterior renovations such as waterproofing work.
We have established 5 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 conducting scaffolding work with our own scaffolding team instead of outsourcing, we can also reduce the costs associated with scaffolding work.
Since everything is handled in-house, we can significantly reduce costs by shortening the 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 procure materials at a lower cost!
Additionally, we always have waterproofing components in stock, allowing us to respond quickly to emergency waterproofing work!
In-house separation of waste materials
In waterproofing work, various waste materials are generated.
Most contractors dispose of them all together, but by sorting and recycling the waste materials, significant cost savings on waste disposal can be achieved.
Exterior Renovation Dedicated Showroom
In our showroom, you can not only have meetings, but also
directly check the actual structures and colors.
2．Complete In-House Construction
One of Kakeru Koumuten’s major strengths is its complete in-house construction.
From inquiry to project completion, everything is handled by Kakeru Koumuten Co., Ltd., allowing 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 construction industry permits and permits for industrial waste collection and transportation!
We also have qualified personnel on staff and 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 the leak is not resolved after the waterproofing work, we will take responsibility and address the issue!
Additionally, aftercare maintenance is available every year, and we will send you a DM reminder for aftercare maintenance each 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 you 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 problems, so we maintain a system that does not change representatives.
6. Human Resource Development
To enhance our skills, we create various building models and conduct practical training.
We regularly provide technical training to ensure that all staff can handle various types of buildings.
Subsidies and Grants for Waterproofing Work in Kanagawa-ku, Yokohama
If damage from natural disasters is recognized, it may be covered by fire insurance.
In terms of waterproofing, potential damages from natural disasters could include “holes in the waterproof sheet caused by flying objects or falling debris due to wind damage.”
If you are unsure whether it is covered by fire insurance, please feel free to contact us!
Property Tax Reduction System for Condominiums that Undergo Large-Scale Repairs (Condominium Longevity Promotion Tax System)
To promote the longevity of condominiums, there is a system that reduces the property tax amount by half for the following fiscal year for condominiums that meet certain requirements and undergo large-scale repairs that contribute to longevity between April 1, 2023, and March 31, 2027, provided that the necessary documents are submitted to the Tax Division of the Ward Office within three months of the completion of the work.
Condominium Longevity Promotion Tax System
Yokohama City Website
About the Costs of Waterproofing Work
⇧Construction Menu｜For information on waterproofing costs, click here
Customer Testimonials
カテゴリ ‘voice’ は見つかりません
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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
Aoba-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. ・Please provide 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 wanted 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 the adhesion 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 applying 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 tube.”
This can prevent the most common problem in 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
Leaks Have Already Occurred
If leaks have already occurred, it is necessary to address them promptly before the damage expands.
If left unattended, it can adversely affect the interior and underlying structures, so it is essential to stop the leaks quickly.
Bulging or Cracking of the Waterproof Layer
If the waterproof area is cracked, it can cause rainwater to enter.
If the waterproof layer is bulging, it indicates that moisture is accumulating within the layer.
Bulging can lead to cracks, which may result in leaks, so early detection and action are necessary.
Moss or Mold Growth
Moss or mold can develop due to accumulated moisture or rainwater.
This can be caused by poor drainage or sinking of the waterproof layer due to aging.
Exceeding the Durability Period
Generally, the durability period for waterproofing work is 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 only the 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 where liquid polyurethane resin is applied in layers to the waterproofing surface.
Before curing, it is in liquid form, allowing it to 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 attaching 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, which, like rubber sheet waterproofing, is applied to the surface to prevent water intrusion.
Like rubber sheets, it is not suitable for complex shapes. Although the cost is higher than rubber sheets and urethane waterproofing, its durability is a significant 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 information on PVC sheet waterproofing!
4. Long Sheet Waterproofing
Long sheet waterproofing, officially known as “anti-slip vinyl flooring sheet,” is commonly used in shared areas and stairs of apartments where people walk.
As the name suggests, it is slip-resistant and has high durability and abrasion 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 capability.
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 information on long sheet waterproofing!
5. FRP Waterproofing
FRP waterproofing involves creating a waterproof layer by solidifying glass mat with epoxy resin to prevent rainwater intrusion.
It is commonly used in single-family home balconies, with an overwhelmingly short construction period, 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 large areas, 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 made by impregnating synthetic fiber non-woven fabric with asphalt.
The waterproofing shown in the photo is a method where asphalt waterproofing is pressed down with cinder concrete.
This type of 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 Kanagawa-ku, Yokohama.
Among the numerous contractors, many people may feel “I don’t know who to ask for help…”.
Choosing the right contractor can be challenging at first, so I will explain 5 points to consider when requesting waterproofing work.
● Have extensive experience in waterproofing work
● Confirm the existence of aftercare and warranty
● Obtain estimates from multiple contractors (at least 3 companies)
● Check if they perform waterproofing work in-house
● Carefully review 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 construction troubles are caused by poor workmanship during the construction process.
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 construction companies on 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.
Check if there is aftercare maintenance and construction warranty
In case any construction defects or issues occur after the work is done, let’s confirm whether they provide a “construction warranty”!
Contractors who offer warranties are usually confident in their work, making them more trustworthy companies!
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 construction!
Additionally, to ensure early detection of any issues that may arise, confirm whether 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 help prevent issues before they arise!
Our company sends out aftercare maintenance DM every year, so if desired, annual aftercare maintenance can be arranged!
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, and warranties and after-services may differ as well.
Moreover, obtaining multiple estimates makes it easier to negotiate prices. To request at the lowest possible cost, obtaining estimates from several contractors is essential.
When comparing estimates, 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 carry out waterproofing construction in-house!
If a sales company investigates and then requests a subcontractor, it will incur additional time and costs.
Also, there may be cases where customer requests are not fully communicated to subcontractors, 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 site surveys to actual construction in-house!
Furthermore, if leaks or troubles occur, a company that employs its own craftsmen 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 appropriate?”
So, if the materials used are only “urethane waterproofing materials,” let’s confirm the product name and check what kind of materials they are!
If you are looking for a waterproofing contractor in Kanagawa-ku, Yokohama, please contact Kakeru Koumuten Co., Ltd.
Our company has handled many waterproofing projects in Kanagawa-ku, Yokohama.
Our greatest strength is that we can carry out 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 high praise from many customers.
We continue to update our construction performance 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 works!
In addition to waterproofing work, we can perform all exterior renovations, including roof 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 free to decline!
For information on exterior renovations in Kanagawa-ku, Yokohama, click here!
For information on exterior wall painting in Kanagawa-ku, Yokohama, click here!
For information on roof renovations in Kanagawa-ku, Yokohama, click here!
For information on exterior wall overlay work in Kanagawa-ku, Yokohama, click here!
For information on leak repairs in Kanagawa-ku, Yokohama, click here!
Characteristics of Kanagawa-ku, Yokohama
Kanagawa-ku is a region where the convenience of the city harmonizes with the richness of nature, featuring excellent transportation access, allowing easy movement to other areas using public transportation and road networks.
While there are multiple commercial facilities that make shopping and dining easily enjoyable, the area also offers a calm living environment with quiet residential neighborhoods and lush parks scattered throughout. Additionally, there are historical streets and facilities that allow you to feel the region’s background and culture. In terms of residential environment, it is an area where a wide range of generations, including families, single households, and elderly households, can live comfortably.
Furthermore, the presence of multicultural exchanges in daily life is also a characteristic feature.
Kanagawa Ward, where convenience, history, nature, and diversity coexist in a well-balanced manner, is recognized as a region that combines livability and enjoyment!
If you live in Kanagawa Ward and have any concerns regarding waterproofing work or issues related to your home, please feel free to contact us!
Waterproofing Service Areas
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and all of Tokyo.
List of Areas in Kanagawa Ward, Yokohama
Aoki-cho, Kanagawa Ward, Yokohama / Asahigaoka, Kanagawa Ward, Yokohama / Ideta-cho, Kanagawa Ward, Yokohama / Izumi-cho, Kanagawa Ward, Yokohama / Irie, Kanagawa Ward, Yokohama / Urashima-oka, Kanagawa Ward, Yokohama / Urashima-cho, Kanagawa Ward, Yokohama / Ebisu-cho, Kanagawa Ward, Yokohama / Oguchi-dori, Kanagawa Ward, Yokohama / Oguchi-naka-cho, Kanagawa Ward, Yokohama / Ohno-cho, Kanagawa Ward, Yokohama / Katakura, Kanagawa Ward, Yokohama / Kanagawa Honmachi, Kanagawa Ward, Yokohama / Kanagawa, Kanagawa Ward, Yokohama / Kamihanda-cho, Kanagawa Ward, Yokohama / Kanenoki-dai, Kanagawa Ward, Yokohama / Kanenoki-cho, Kanagawa Ward, Yokohama / Kamezumi-cho, Kanagawa Ward, Yokohama / Kandai-ji, Kanagawa Ward, Yokohama / Kirihata, Kanagawa Ward, Yokohama / Kinkou-cho, Kanagawa Ward, Yokohama / Kuritaya, Kanagawa Ward, Yokohama / Saiwai-ya, Kanagawa Ward, Yokohama / Koyasudai, Kanagawa Ward, Yokohama / Koyasu-dori, Kanagawa Ward, Yokohama / Saito-buncho, Kanagawa Ward, Yokohama / Sakae-cho, Kanagawa Ward, Yokohama / Sawatari, Kanagawa Ward, Yokohama / Sanmae-cho, Kanagawa Ward, Yokohama / Shirahata Kamimachi, Kanagawa Ward, Yokohama / Shirahata-cho, Kanagawa Ward, Yokohama / Shirahata Nakacho, Kanagawa Ward, Yokohama / Shirahata Nishimachi, Kanagawa Ward, Yokohama / Shirahata Higashimachi, Kanagawa Ward, Yokohama / Shirahata Minamimachi, Kanagawa Ward, Yokohama / Shirahata Mukaimachi, Kanagawa Ward, Yokohama / Shin Urashima-cho, Kanagawa Ward, Yokohama / Shin Koyasu, Kanagawa Ward, Yokohama / Shinmachi, Kanagawa Ward, Yokohama / Sugita-cho, Kanagawa Ward, Yokohama / Suzusaka-cho, Kanagawa Ward, Yokohama / Takashimadai, Kanagawa Ward, Yokohama / Takaracho, Kanagawa Ward, Yokohama / Tachimach, Kanagawa Ward, Yokohama / Hantan, Kanagawa Ward, Yokohama / Daimachi, Kanagawa Ward, Yokohama / Chiwaka-cho, Kanagawa Ward, Yokohama / Tsuruyamacho, Kanagawa Ward, Yokohama / Tomiie-cho, Kanagawa Ward, Yokohama / Torigoe, Kanagawa Ward, Yokohama / Nakamaru, Kanagawa Ward, Yokohama / Nanashima-cho, Kanagawa Ward, Yokohama / Nishi Oguchi, Kanagawa Ward, Yokohama / Nishi Kanagawa, Kanagawa Ward, Yokohama / Nishi Terao, Kanagawa Ward, Yokohama / Nihon Enoki, Kanagawa Ward, Yokohama / Shirakaku, Kanagawa Ward, Yokohama / Hazawacho, Kanagawa Ward, Yokohama / Hazawa Minami, Kanagawa Ward, Yokohama / Hashimoto-cho, Kanagawa Ward, Yokohama / Higashi Kanagawa, Kanagawa Ward, Yokohama / Hirakawa-cho, Kanagawa Ward, Yokohama / Hirodai Ota-cho, Kanagawa Ward, Yokohama / Futatsutani-cho, Kanagawa Ward, Yokohama / Hoshino-cho, Kanagawa Ward, Yokohama / Matsugaoka, Kanagawa Ward, Yokohama / Matsumicho, Kanagawa Ward, Yokohama / Matsumoto-cho, Kanagawa Ward, Yokohama / Mizuho-cho, Kanagawa Ward, Yokohama / Mitsuzawa Kamimachi, Kanagawa Ward, Yokohama / Mitsuzawa Shimomachi, Kanagawa Ward, Yokohama / Mitsuzawa Nakacho, Kanagawa Ward, Yokohama / Mitsuzawa Nishimachi, Kanagawa Ward, Yokohama / Mitsuzawa Higashimachi, Kanagawa Ward, Yokohama / Mitsuzawa Minamimachi, Kanagawa Ward, Yokohama / Moriya-cho, Kanagawa Ward, Yokohama / Yamauchi-cho, Kanagawa Ward, Yokohama / Rokkakubashi, Kanagawa Ward, Yokohama
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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！
