Leave Waterproofing Work in Hadano City, Kanagawa Prefecture to Kakeru Koumuten Co., Ltd.!
If you are looking for a waterproofing contractor in Hadano City,
come to Kakeru Koumuten
Kakeru Koumuten is a company specializing in exterior renovations in Kanagawa Prefecture.
We receive many requests for waterproofing work in Hadano City, ranging from single-family homes to apartment buildings.
“Reasons why Kakeru Koumuten is chosen in Hadano City”
“About the costs of waterproofing work”
“How to choose a waterproofing contractor”
“Subsidies and grants applicable to waterproofing work in Hadano City”
We will explain the above four points!
This will definitely be helpful for customers considering waterproofing work in Hadano City, so
please take a look!
Reasons why Kakeru Koumuten is chosen for waterproofing work in Hadano City
The reasons why our company is entrusted with waterproofing work by customers in Hadano City include
one reason being 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 be grateful if you could compare us with estimates from other companies.
Because we are confident, we welcome competitive estimates!
1．Specialized equipment for 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 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 performing scaffolding work with our own scaffolding team instead of outsourcing, we can also cut costs associated with scaffolding work.
Since everything is done in-house, we can significantly reduce costs by shortening the construction period!
We have approximately enough scaffolding materials for 50 single-family homes!
Material Storage 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., 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 project 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 professionals on staff and are confident in our construction techniques.
We can handle 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 warranty.
If you have any questions about the warranty, please click on the image above!
In the unlikely event that leaks are not resolved after the waterproofing work, we will take responsibility and respond accordingly!
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.
Thermal imaging cameras can also be used during leak investigations.
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 problems, so we maintain 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 Related to Waterproofing Work in Hadano City
If damage caused by 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 your fire insurance applies, please feel free to contact us!
Reduction Measures for Condominiums that Undergo Major Repairs Contributing to Longevity
For condominiums that have undergone major repairs contributing to longevity and meet all of the following requirements, there is a system that reduces the fixed asset tax by one-third for the year following the completion of the renovation work.
Reduction Measures for Condominiums that Undergo Major Repairs Contributing to Longevity
Reduction Measures for Fixed Asset Tax for Condominiums that Undergo Major Repairs Contributing to Longevity (PDF)
Hadano City Official Website
About the Cost of Waterproofing Work
⇧Service Menu｜For information on waterproofing construction 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 Construction
| Construction Details |
| Urethane Waterproofing Ventilated Cushion 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 Ventilation 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 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 using a long-lasting method rather than 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 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 problem in waterproofing: bulging of the waterproof layer!
After explaining the materials and methods, you entrusted the work to us among the four estimates you received!
Timing for Waterproofing Work
Leaks Already Occurring
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 lead to rainwater intrusion.
If the waterproof layer is bulging, it indicates that moisture is accumulating within the layer.
Bulging can lead to cracks and subsequently to 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.
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 conducting 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, 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, 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 an 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 PVC sheet waterproofing work!
4. Long Sheet Waterproofing
Long sheet waterproofing, officially known as “anti-slip vinyl floor sheet,” is commonly applied in shared areas of apartments and on stairs 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 rooftops of apartments where people do not frequently enter and exit.
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 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 on 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 seems that about 80% of single-family home balconies use FRP waterproofing.
However, it is not suitable for installation on large surface areas, making it less appropriate for rooftop applications.
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 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 benefit is its high durability.
For more details 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 Hadano City.
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 I will explain 5 points to be careful about 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 contents of the waterproofing estimate, the process, and the materials used
By confirming the above 5 points, you will be able to choose a reliable contractor.
Confirm if they have extensive experience in waterproofing work
About 10-20% of waterproofing work troubles are caused by poor construction 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.
There are also contractors who showcase their achievements on social media like Instagram, so checking those can 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.
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 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 verification!
Check for leaks during rainy weather after the waterproofing work, and if anything arises, 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 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 for waterproofing work (at least 3 companies)
When requesting waterproofing work, be sure to obtain estimates from multiple contractors.
We recommend obtaining estimates from at least 3 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, it is essential to get estimates from several contractors.
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 work in-house!
If a sales company investigates and then requests a subcontractor, it will incur extra time and costs.
Moreover, there may be cases where your requests are not fully communicated to the subcontractor, leading to potential troubles.
By having one company handle everything from sales to construction, responsible waterproofing work can be done quickly and cost-effectively. Kakeru Koumuten conducts everything from on-site surveys to actual construction in-house!
Furthermore, if any leaks or troubles occur, a company that employs its own craftsmen can respond to and resolve issues swiftly!
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 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 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 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 Hadano City, please contact Kakeru Koumuten Co., Ltd.
Our company has handled many waterproofing projects in Hadano City.
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 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 respond to small partial works!
Not only waterproofing work but also roofing work, exterior painting, and exterior cover methods can all be carried out 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!
For exterior renovations in Hadano City, click here!
For exterior painting in Hadano City, click here!
For roofing renovations in Hadano City, click here!
For leak repairs in Hadano City, click here!
Features of Hadano City
Hadano City, located in the western part of Kanagawa Prefecture, is a nature-rich city with a length of about 13.6 km east to west and about 12.8 km north to south, covering an area of 103.61 square kilometers. It is approximately 60 km from the city center to Tokyo and about 37 km to Yokohama, providing good access to the metropolitan area.
The climate of Hadano City belongs to the Pacific coastal climate, characterized by relatively mild temperatures throughout the year, with little frost or snowfall. The annual average temperature is 15.3 degrees, and the annual precipitation is 1,858 mm, which is relatively high in the prefecture. In winter, winds predominantly come from the northwest, while in summer, they come from the south, with relatively weak wind speeds.
In Hadano City, the Odakyu Odawara Line runs east-west, with four stations: Tsurumaki Onsen Station, Tokai University Mae Station, Hadano Station, and Shibusawa Station. It takes about 1 hour and 10 minutes to reach Shinjuku Station by express train, and about 1 hour using the Limited Express Romancecar. Additionally, National Route 246 runs through the city from east to west, and the Hadano Nakai Interchange on the Tomei Expressway provides convenient access for driving to Tokyo and Yokohama. It takes about 40 minutes to reach the Tokyo Interchange and about 30 minutes to the Yokohama Machida Interchange.
Hadano City is home to the Tanzawa Mountains in the northern part, with the highest peak being Mt. Tō no Dake at an elevation of 1,490.9 meters. Many of the rivers flowing through the city are clear streams from the Tanzawa Mountains, with the Minagawa River originating from Mt. Tō no Dake flowing through the central area. The city is blessed with abundant and high-quality underground water, which has been selected as one of the “Top 100 Famous Waters in Japan,” and the city’s tap water is sourced from this underground water.
Thus, Hadano City is a livable town where nature and urban life harmonize, and its good access to the city center makes it a popular destination for tourism and relocation.
Kakeru Koumuten Co., Ltd. offers exterior construction services in Hadano City. We provide a wide range of services including waterproofing, roof replacement, roof overlay (cover method), exterior wall painting, and roof painting.
Please feel free to consult us if you have any concerns!
Waterproofing Service Areas
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.
Hadano City Area List
Hadano City Imaizumi / Hadano City Imaizumi-dai / Hadano City Imagawa-cho / Hadano City Irifune-cho / Hadano City Ojiri / Hadano City Ochiai / Hadano City Kasuga-cho / Hadano City Kami-Imagawa-cho / Hadano City Kami-Otsuki / Hadano City Kawahara-cho / Hadano City Kita-Yana / Hadano City Kotobuki-cho / Hadano City Kominoge / Hadano City Saiwaicho / Hadano City Sakae-cho / Hadano City Sakura-cho / Hadano City Miya / Hadano City Shibusawa / Hadano City Shibusawa-kami / Hadano City Shimizu-cho / Hadano City Shimo-Otsuki / Hadano City Shimo-Ochiai / Hadano City Ayame / Hadano City Shinmachi / Hadano City Suijin-cho / Hadano City Suehiro-cho / Hadano City Suzuhara-cho / Hadano City Soya / Hadano City Oohata-cho / Hadano City Ritenodai / Hadano City Senmura / Hadano City Tsurumaki / Hadano City Tsurumaki-minami / Hadano City Tsurumaki-kita / Hadano City Terayama / Hadano City Togawa / Hadano City Tochikubo / Hadano City Nagakuki / Hadano City Namiki-cho / Hadano City Nishi-Otake / Hadano City Nishi-Tahara / Hadano City Numashiro Shinmachi / Hadano City Hagi-ga-oka / Hadano City Hazawa / Hadano City Hane / Hadano City Higashi-Tahara / Hadano City Hibarigaoka / Hadano City Hirasawa / Hadano City Fujimi-cho / Hadano City Bunkyo-cho / Hadano City Bodai / Hadano City Horikawa / Hadano City Horiyamashita / Hadano City Horinishi / Hadano City Honmachi / Hadano City Magarimatsu / Hadano City Matsubara-cho / Hadano City Mikawa-bu / Hadano City Midori-cho / Hadano City Minami-ga-oka / Hadano City Minami-Yana / Hadano City Minoge / Hadano City Muro-cho / Hadano City Motomachi / Hadano City Yanagawa / Hadano City Yanagicho / Hadano City Yayoi-cho / Hadano City Yokono / Hadano City Wakamatsu-cho
Consultations via LINE are also very welcome◎
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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！
