Leave waterproofing work in Ashigarakami District, Kanagawa Prefecture (Hakone, Manazuru, Yugawara) to Kakeru Koumuten Co., Ltd.!
If you are looking for a
waterproofing contractor inKakeru Koumuten
Kakeru Koumuten is a company specializing in exterior renovations in Kanagawa Prefecture.
We receive many requests for waterproofing work for both single-family homes and apartment buildings in Aoba-ku, Yokohama (Hakone, Manazuru, Yugawara).
“Reasons why Kakeru Koumuten is chosen for waterproofing in Aoba-ku, Yokohama (Hakone, Manazuru, Yugawara)”
“About the costs of waterproofing work”
“How to choose a waterproofing contractor”
“Subsidies and grants available for waterproofing work in Aoba-ku, Yokohama (Hakone, Manazuru, Yugawara)”
We will explain the above four points!
For customers considering waterproofing work in Aoba-ku, Yokohama (Hakone, Manazuru, Yugawara),
this will definitely be helpful, so
please take a look!
Reasons why Kakeru Koumuten is chosen for waterproofing work in Aoba-ku, Yokohama (Hakone, Manazuru, Yugawara)
The reasons our company is trusted with waterproofing work by customers in Aoba-ku, Yokohama (Hakone, Manazuru, Yugawara)
One reason is that we have a base in Kanagawa Prefecture, but
“Our unique 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 organized the following warehouses and material storage areas to provide more affordable and faster waterproofing and other exterior renovation services.
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 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 sorting of waste materials
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 confirm the actual structure and color tones.
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 project.
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 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 annually, 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 are unable to access the roof for waterproofing checks, we will utilize drones to assess the condition.
During leak investigations, we can also conduct surveys 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 can cause issues, so our company maintains a system where the representative remains the same.
6. Human Resource Development
We are creating various building models to enhance our skills and conducting practical training.
To ensure that each staff member can handle various buildings, we regularly provide technical training.
Subsidies and Grants for Waterproofing Work in Ashigarakami District (Hakone Town, Manazuru Town, Yugawara Town) that may be applicable
Currently, there are no subsidies or grants available for waterproofing work in Ashigarakami District (Hakone Town, Manazuru Town, Yugawara Town).
If damage from natural disasters is recognized, it may be covered by fire insurance.
Examples of damage considered under waterproofing due to natural disasters include “holes in waterproof sheets 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!
Hakone Town Official Website
Manazuru Town Official Website
Yugawara Town Official Website
About the Costs of Waterproofing Work
⇧ For the construction menu | Click here for information on waterproofing costs
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)!
Waterproofing Construction Case Studies
| Construction Details |
| Polyurethane waterproofing ventilation buffer method / High-strength polyurethane type Existing waterproofing: PVC sheet waterproofing |
| Materials Used |
| Waterproofing: AGC polymer building materials / Saracene A (high-strength polyurethane) Ventilation sheet: QV sheet Decompression tube: 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 have received the following inquiries from our customer. ・There are wrinkles and bulges in the waterproof sheet on the rooftop, so we are worried about leaks. ・We would like an estimate for a complete waterproof renovation, not just partial repairs or a top coat. ・We learned that urethane waterproofing has high waterproofing properties, so we would like an estimate for urethane waterproofing. ・Since this is our first waterproofing project, we would like to compare estimates. |
Our Proposal
Since you expressed a desire to renovate with a long-lasting method rather than just using protective agents like top coats, we proposed a complete “urethane waterproofing project” for the rooftop.
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 installing the urethane waterproofing.
By applying the ventilation buffer sheet first, air rising from the building is suppressed by the ventilation sheet and expelled through the “ventilation pipe.”
This method can prevent the most common trouble of bulging in the waterproof layer!
After explaining the materials and methods, you entrusted the work to us from among four competing estimates!
Timing for Waterproofing Work
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 negatively 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.
Bulges 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 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 can vary depending on the construction method and materials, but some types of waterproofing recommend applying 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.
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 and rooftops.
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 long durability is a significant advantage.
We provide detailed explanations about the advantages and disadvantages of PVC sheet waterproofing, as well as maintenance methods, in 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 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 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 performance.
It is rarely used in areas like rooftops of apartments where people do not frequently enter.
We provide detailed explanations about the advantages and disadvantages of long sheet waterproofing, as well as maintenance methods, in 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 applied in single-family home balconies, and the construction period is remarkably 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 large surface areas, making it less appropriate for rooftops.
We provide detailed explanations about the advantages and disadvantages of FRP waterproofing, as well as maintenance methods, in the article below.
Waterproofing Work | Click here for information on FRP waterproofing!
6. Asphalt Waterproofing
Asphalt waterproofing refers to 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 type of waterproofing is used in large buildings such as rooftops of schools and commercial facilities.
While there are various methods of asphalt waterproofing, each with its own advantages and disadvantages, a significant benefit 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 information on asphalt waterproofing!
How to Choose a Waterproofing Contractor
There are many waterproofing contractors available in Ashigarakami District (Hakone, Manazuru, Yugawara).
Among the numerous contractors, there are likely many who feel “I don’t know who to ask…”.
Choosing the right contractor can be challenging at first, so here are 5 points to keep in mind when requesting waterproofing work.
● Have extensive experience in waterproofing work
● Confirm the presence 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 the process 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 extensive 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!
The review site we particularly recommend 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 if they provide a “construction warranty”!
Contractors who offer warranties tend to be more confident in their work, making them more trustworthy!
If waterproofing work is done, make sure to take photos of the 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 done!
Also, to ensure early detection of any issues that may arise, confirm whether they provide thorough aftercare maintenance!
Since non-specialized contractors may not notice signs of problems or troubles, having a specialized contractor conduct regular aftercare maintenance can help prevent issues before they occur!
Our company sends out aftercare maintenance DM every year, so if desired, 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, and warranties and after-services may differ as well.
Additionally, 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”!
Confirm if they conduct waterproofing work in-house
Check if 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 instances where the customer’s requests are not communicated 100% to the subcontractor, leading to potential troubles.
By having one company handle everything from sales to construction, responsible waterproofing work can be conducted swiftly and cost-effectively. Kakeru Koumuten handles everything from on-site investigations to actual construction in-house!
Furthermore, in the unlikely event of leaks or troubles, a company that employs its own craftsmen can respond to and resolve issues quickly!
Carefully Check the Details of the Waterproofing Estimate, Process, and Materials
Even for the same waterproofing work, there are various types such as “method,” “materials,” and “process,” and it is necessary to carry out the work using the most suitable method and materials depending on the construction location and existing substrate.
For example, even with the same urethane waterproofing, there are different types of processes such as “adhesion method” and “ventilation buffer method,” and there are various types of urethane waterproofing materials including “high-strength specification,” “heat-insulating specification,” and “anti-slip specification.” Therefore, it is essential to confirm whether the construction content is appropriate for the installation 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 confirm the product name and check what kind of materials they are!
If you are looking for a waterproofing contractor in Ashigarakami-gun (Hakone, Manazuru, Yugawara), please contact Kakeru Koumuten Co., Ltd.
Our company has handled many waterproofing projects in Ashigarakami-gun (Hakone, Manazuru, Yugawara).
Our greatest strength is that we can carry out everything from proposals to temporary scaffolding installation and waterproofing work in-house!
Kakeru Koumuten Co., Ltd. promises “high-quality waterproofing work at low cost”, and we have received great feedback from many customers.
We continue to update our construction performance each 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 carry out roofing work, exterior painting, and exterior cover methods all in-house for exterior renovations.
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!
For exterior renovations in Ashigarakami-gun, click here!
For exterior painting in Ashigarakami-gun, click here!
For roofing renovations in Ashigarakami-gun, click here!
For leak repairs in Ashigarakami-gun, click here!
Characteristics of Ashigarakami-gun (Hakone, Manazuru, Yugawara)
Ashigarakami-gun in Kanagawa Prefecture consists of three towns: Hakone, Manazuru, and Yugawara, each with its own unique natural environment and culture, and is also known as a tourist destination.
Hakone Town is located in the western part of Kanagawa Prefecture and is nationally famous for its rich nature and hot springs. Centered around Mount Hakone, beautiful lakes and mountains spread out, offering seasonal landscapes to enjoy. Additionally, there are numerous art museums and galleries, providing a wealth of cultural attractions. The transportation access is also excellent, making it a popular destination for tourists from the city.
Manazuru Town is a small town facing Sagami Bay in the southwestern part of Kanagawa Prefecture. The Manazuru Peninsula juts out, characterized by rich marine resources and beautiful coastlines. Fishing is thriving, allowing visitors to enjoy fresh seafood, and the entire peninsula is designated as a prefectural natural park, perfect for nature walks and tide pooling. There are also initiatives to support artists in residence.
Yugawara Town is located at the southwestern tip of Kanagawa Prefecture and has been known as a hot spring area for a long time. The historic Yugawara Onsen, mentioned in the Manyoshu, is known for its weak alkaline water, believed to be effective for neuralgia, lower back pain, and women’s diseases. The town is blessed with a mild climate and rich natural environment, offering seasonal landscapes to enjoy. There are also many art museums and parks within the town, adding to its cultural appeal.
Ashigarakami District in Kanagawa Prefecture has its own unique natural environment and culture, making it a beloved tourist destination for many. Additionally, it has good access from the city, making it popular for day trips and overnight stays.
If you live in Ashigarakami District and have any concerns regarding waterproofing work or issues related to your home, please feel free to contact us!
Waterproofing Work Service Areas
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.
Hakone Town Area List
Hakone Town Ashinoyu / Hakone Town Ohiradai / Hakone Town Kiga / Hakone Town Kowakudani / Hakone Town Gora / Hakone Town Sugumo River / Hakone Town Sengokuhara / Hakone Town Sokokura / Hakone Town Tounosawa / Hakone Town Ninodaira / Hakone Town Hakone / Hakone Town Hatajuku / Hakone Town Miyagino / Hakone Town Miyanoshita / Hakone Town Motohakone / Hakone Town Yumoto / Hakone Town Yumoto Chaya
Manazuru Town Area List
Manazuru Town Iwa / Manazuru Town Manazuru
Yugawara Town Area List
Yugawara Town Yoshihama / Yugawara Town Chuo / Yugawara Town Doi / Yugawara Town Miyakami / Yugawara Town Fukuura
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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！
