Leave Waterproofing Work in Hachioji City, Tokyo to Kakeru Koumuten Co., Ltd.!
If you are looking for a waterproofing contractor in Hachioji, Tokyo,
come to Kakeru Koumuten
Kakeru Koumuten specializes in exterior renovations.
We receive many requests for waterproofing work for both single-family homes and apartment buildings in Hachioji, Tokyo.
“Reasons why Kakeru Koumuten is chosen in Hachioji, Tokyo”
“About the costs of waterproofing work”
“How to choose a waterproofing contractor”
“Subsidies and grants available for waterproofing work in Hachioji, Tokyo”
We will explain the above four points!
This will definitely be helpful for customers considering waterproofing work in Hachioji, Tokyo, so
please take a look!
Reasons why Kakeru Koumuten is chosen for waterproofing work in Hachioji, Tokyo
Regarding the reasons why our company is entrusted with waterproofing work by customers in Hachioji, Tokyo,
“Our strengths in waterproofing work that cannot be imitated by other companies”
have received high praise from many customers.
In waterproofing work in Hachioji, Tokyo,
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．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 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 not outsourcing scaffolding work and using our own scaffolding team, we can also cut costs on scaffolding construction.
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 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 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 leaks are not resolved after the waterproofing work, we will take full responsibility and respond accordingly!
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 are unable to access the roof for waterproofing checks, we will utilize drones to assess the condition.
We can also conduct investigations using thermal imaging cameras 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 could cause problems, so our company maintains a system where the representative remains the same.
6. Human Resource Development
To enhance our skills, we create various building models and conduct practical training.
We regularly provide technical training so that each staff member can handle various types of buildings.
Subsidies and Grants for Waterproofing Work in Hachioji City, Tokyo
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 waterproof sheets caused by flying objects or falling debris due to wind disasters.”
If you are unsure whether your fire insurance applies, please feel free to contact us!
Property Tax Reduction Measures for Condominiums that Undergo Major Repairs Contributing to Longevity
From April 1, 2023, to March 31, 2027, for certain condominiums that meet specific criteria and complete major repairs contributing to longevity, if you file within three months of the completion date, the property tax for the residential exclusive area equivalent to 100 square meters per unit will be reduced by one-third for the year following the completion of the work. (Urban planning tax is not reduced.)
About the Costs 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
-
customer reviews
Asao-ku, Kawasaki City | We received reviews about the ridge cap and rain gutter replacement work!
-
customer reviews
Kohoku-ku, Yokohama | We received reviews about the roof overlay (cover method)!
-
customer reviews
Kohoku-ku, Yokohama | We Received Reviews About Exterior Painting!
-
customer reviews
Aoba-ku, Yokohama | We received reviews about our exterior fence construction!
-
customer reviews
Tsurumi-ku, Yokohama | We received reviews about roof and exterior wall painting, as well as metalwork and rain gutter replacement work!
-
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 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 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. ・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 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 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, you entrusted the project to us among the four estimates!
Timing for Waterproofing Work
Leaks Have Already Occurred
If leaks have already occurred, it is necessary to address the issue promptly before further damage occurs.
If left unattended, it can negatively 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 occur 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 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 for 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.
For more details on the advantages and disadvantages of PVC sheet waterproofing, as well as 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 flooring 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 enter.
For more details on the advantages and disadvantages of long sheet waterproofing, as well as 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 hardening glass mat with epoxy resin to prevent rainwater intrusion.
It is commonly applied on single-family home balconies, and the construction period is overwhelmingly short, often completed in just 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 ideal for rooftops.
For more details on the advantages and disadvantages of FRP waterproofing, as well as 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 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 Hachioji City, Tokyo.
Among the numerous contractors, there are likely many who 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 the contractor performs waterproofing work in-house
● Carefully review the contents of the waterproofing estimate, 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.
There are also contractors who showcase their achievements on social media platforms like Instagram, so checking those can be effective!
It is also effective to refer to review sites to look for waterproofing companies!
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 completed, let’s confirm if they provide a “construction warranty”!
Contractors who offer a warranty are usually 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 completed!
Additionally, to detect any issues early, confirm if they 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 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.
Moreover, obtaining multiple estimates makes it easier to negotiate prices. To request at the lowest possible cost, obtaining estimates from multiple contractors is essential.
When comparing estimates, be sure to check not only the costs but also the “types of materials used” and “construction methods,” and compare the details!
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.
Also, there may be cases where the customer’s 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, 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 location 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 details are 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 substrate?” and “are the materials suitable?”
Thus, 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 Hachioji City, Tokyo, please contact Kakeru Koumuten Co., Ltd.
Our company has handled many waterproofing projects in Hachioji City, Tokyo.
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 so that we can satisfy even more customers in the future.
We are happy to respond to small partial works as well!
In addition to waterproofing work, we can also handle roofing work, exterior painting, and exterior cover methods, all in-house.
We are confident that we will not be outdone by other companies in terms of cost, quality, and organization for exterior construction!
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 information on exterior renovations in Hachioji City, Tokyo, click here!
For information on exterior painting in Hachioji City, Tokyo, click here!!
For information on roof renovations in Hachioji City, Tokyo, click here!
For information on leak repairs in Hachioji City, Tokyo, click here!
Characteristics of Hachioji City, Tokyo
Hachioji City is located in the southwestern part of Tokyo and has a wide range of areas from nature-rich mountainous regions to urban areas. It is the municipality with the largest area in Tokyo, offering a variety of attractions.
The climate is relatively mild throughout the year, but due to its inland location, it has characteristics of an inland climate, with hot summers and harsh cold in winter. Particularly in winter, snowfall can be seen in the suburban mountainous areas.
Access is very convenient, with the JR Chuo Line, Yokohama Line, and Hachiko Line, as well as the Keio Line running through the city. It takes about 35 minutes to reach Shinjuku Station in the city center via the JR Chuo Line express, making it easily accessible. Additionally, there is an interchange for the Chuo Expressway, allowing for comfortable travel by car.
One of the famous tourist spots is “Takao-san,” known as one of the premier sacred mountains in Kanto, attracting hikers and climbers throughout the year. There are also many historical sites, such as the “Hachioji Castle Ruins,” where visitors can experience history and culture. The city center is rich in cultural facilities, including the “Hachioji Dream Museum” and the “Tokyo Fuji Art Museum,” offering a diverse range of attractions.
Our company provides a wide range of waterproofing services in Hachioji City. We can handle all exterior renovations, including waterproofing, roofing, and exterior painting, all performed by our own team.
If you have any concerns, please feel free to consult us!
Waterproofing Service Areas
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.
List of Areas in Hachioji City, Tokyo
Akiyama-cho, Hachioji City / Asahi-cho, Hachioji City / Higashi-cho, Hachioji City / Ishikawa-cho, Hachioji City / Izumi-cho, Hachioji City / Inume-cho, Hachioji City / Ueno-cho, Hachioji City / Uchikoshi-cho, Hachioji City / Uzuki-cho, Hachioji City / Utsunuki-cho, Hachioji City / Ume-tsubo-cho, Hachioji City / Ura-Takao-cho, Hachioji City / Oiwake-cho, Hachioji City / Otsuka, Hachioji City / Ofuna-cho, Hachioji City / Otani-cho, Hachioji City / Ooyoko-cho, Hachioji City / Owada-cho, Hachioji City / Ozu-cho, Hachioji City / Kashima, Hachioji City / Kazume-cho, Hachioji City / Katakura-cho, Hachioji City / Kanoya-cho, Hachioji City / Kamiiwabukata-cho, Hachioji City / Kamionogata-cho, Hachioji City / Kamikawa-cho, Hachioji City / Kamiyuzuki, Hachioji City / Kawaguchi-cho, Hachioji City / Kawa-cho, Hachioji City / Kitano-dai, Hachioji City / Kitano-cho, Hachioji City / Kinuoka-cho, Hachioji City / Kiyokawa-cho, Hachioji City / Kunieda-cho, Hachioji City / Kuboyama-cho, Hachioji City / Koshino, Hachioji City / Kohiki-cho, Hachioji City / Komiya-cho, Hachioji City / Koyasu-cho, Hachioji City / Sairi-cho, Hachioji City / Sanada-cho, Hachioji City / Shimo-Onogata-cho, Hachioji City / Shimo-Yuzuki, Hachioji City / Shiroyama-te, Hachioji City / Shin-machi, Hachioji City / Suwa-cho, Hachioji City / Sennin-cho, Hachioji City / Hira-cho, Hachioji City / Takao-cho, Hachioji City / Takakura-cho, Hachioji City / Takatsuki-cho, Hachioji City / Taki-yama-cho, Hachioji City / Tachi-cho, Hachioji City / Tamachi, Hachioji City / Tanuki-cho, Hachioji City / Dai-cho, Hachioji City / Oogakuji-cho, Hachioji City / Terada-cho, Hachioji City / Tera-machi, Hachioji City / Tenjin-cho, Hachioji City / Tsuji-cho, Hachioji City / Tobuki-cho, Hachioji City / Nakacho, Hachioji City / Nakano-kamimachi, Hachioji City / Nakano-San’no, Hachioji City / Nakano-cho, Hachioji City / Nakayama, Hachioji City / Nagakubo-cho, Hachioji City / Nagabou-cho, Hachioji City / Nanakuni, Hachioji City / Namiki-cho, Hachioji City / Narahara-cho, Hachioji City / Nanyo-dai, Hachioji City / Nishi-Asakawa-cho, Hachioji City / Nishi-Katakura, Hachioji City / Nishi-Terakata-cho, Hachioji City / Nibun-kata-cho, Hachioji City / Hazama-cho, Hachioji City / Hachiman-cho, Hachioji City / Hatsuzawa-cho, Hachioji City / Higashi-Asakawa-cho, Hachioji City / Higashi-Nakano, Hachioji City / Hyoe, Hachioji City / Hiyoshi-cho, Hachioji City / Hiraoka-cho, Hachioji City / Fujimi-cho, Hachioji City / Bessho, Hachioji City / Horinouchi, Hachioji City / Hongou-cho, Hachioji City / Honmachi, Hachioji City / Matsugaya, Hachioji City / Matsuki, Hachioji City / Maruyama-cho, Hachioji City / Misaki-cho, Hachioji City / Mitsui-dai, Hachioji City / Midori-cho, Hachioji City / Minami-Asakawa-cho, Hachioji City / Minami-Oosawa, Hachioji City / Minami-Shinmachi, Hachioji City / Minami-cho, Hachioji City / Minamino, Hachioji City / Miyashita-cho, Hachioji City / Miyama-cho, Hachioji City / Myoujin-cho, Hachioji City / Mejiro-dai, Hachioji City / Moto-Hachioji-cho, Hachioji City / Moto-Hongou-cho, Hachioji City / Moto-Yokoyama-cho, Hachioji City / Yagi-cho, Hachioji City / Tani-no-cho, Hachioji City / Yamada-cho, Hachioji City / Yari-mizu, Hachioji City / Youka-cho, Hachioji City / Yokokawa-cho, Hachioji City / Yokoyama-cho, Hachioji City / Yotsuya-cho, Hachioji City / Man-cho, Hachioji City
Consultations via LINE are also very welcome◎
We are regularly updating our Instagram◎Please follow us◎
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！
