Leave Your Waterproofing Work in Ninomiya Town, Nakagun, Kanagawa Prefecture to Kakeru Koumuten Co., Ltd.!
If you are looking for a waterproofing contractor in
please contact Kakeru Koumuten
Kakeru Koumuten is a company specializing in exterior renovations in Kanagawa Prefecture.
We receive many requests for waterproofing work in Aoba-ku, Yokohama, ranging from single-family homes to apartment buildings.
“Reasons why Kakeru Koumuten is chosen in Aoba-ku, Yokohama”
“About the costs of waterproofing work”
“How to choose a waterproofing contractor”
“Subsidies and grants available for waterproofing work in Aoba-ku, Yokohama”
We will explain the above four points!
This will definitely be helpful for customers considering waterproofing work in Aoba-ku, Yokohama, so
please take a look!
Reasons why Kakeru Koumuten is chosen for waterproofing work in Aoba-ku, Yokohama
The reasons why our company can be entrusted with waterproofing work by customers in Aoba-ku, Yokohama include
the fact that we have a base in Kanagawa Prefecture,
“Our strengths in waterproofing work that cannot be imitated by other companies”
which has received high praise from many customers.
we have absolute confidence in “cost,” “quality,” and “plans”, so
we would be grateful if you could compare our estimates with those of other companies.
Because we are confident, we welcome competitive estimates!
1.Specialized Equipment for Exterior Renovation
Kakeru Koumuten Co., Ltd. has prepared the following warehouses and material storage areas to provide more affordable and faster waterproofing and other exterior renovations.
We have established five bases centered around Aoba-ku, Yokohama for material storage and showrooms.
In-House Scaffolding Materials
We own the scaffolding materials necessary for temporary scaffolding required for waterproofing work, allowing us to assemble temporary scaffolding in-house.
By performing scaffolding work with our own scaffolding team instead of outsourcing, we can also cut costs associated with scaffolding work.
Since everything is done 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 check the actual structure and colors.
2．Complete In-House Construction
One of Kakeru Koumuten’s major strengths is complete in-house construction.
From inquiry to project completion, everything is handled by Kakeru Koumuten Co., Ltd. This allows us to keep costs down while providing high-quality waterproofing work.
Additionally, one representative will assist you from the estimate to the completion of the work.
Since the same person will handle sales and construction management, smooth communication is possible.
We are confident in our construction plans and costs, so we welcome competitive estimates!
3. Various Permits and Skilled Workers
We have obtained construction industry permits as well as 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 the aftercare maintenance, we will check the entire waterproofing system and assess the deterioration status.
5. Flexible and Prompt Response
Our company is equipped to handle various troubles and situations.
If we cannot access the roof 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 can cause problems, so we maintain a system where the representative remains the same.
6. Human Resource Development
To improve our skills, we create various building models and conduct practical training.
We regularly provide technical training so that each staff member can handle various types of buildings.
Subsidies and Grants That May Apply to Waterproofing Work in Ninomiya Town, Nakagun
If damage caused by natural disasters is recognized, it may be covered by fire insurance.
For waterproofing, potential damages considered as natural disaster impacts 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!
Subsidy for the Purchase of Flood Barriers in Ninomiya Town
Due to the increase in heavy rainfall, there is a subsidy system to support flood prevention measures in cases of road flooding or overflowing rivers.
About the Costs of Waterproofing Work
⇧ For construction menu | Click here for waterproofing costs
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)!
Waterproofing Work Case Studies
| Construction Details |
| Urethane Waterproofing Ventilated 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 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 trouble with waterproofing, which is bulging of the waterproof layer!
After explaining the materials and methods, you entrusted us with the project among the four estimates!
Timing for Waterproofing Work
Leaks Have Already Occurred
If leaks have already occurred, it is necessary to address them 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.
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, 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 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 that involves applying liquid polyurethane resin 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 applied 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 method 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, and like rubber sheet waterproofing, it is applied to the surface to prevent water intrusion.
Similar to rubber sheets, it is not suitable for complex shapes. Although the cost is higher than rubber sheets and urethane waterproofing, its long durability is 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 “slip-resistant vinyl flooring sheet,” is commonly applied in shared areas and staircases of condominiums 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 have a slightly lower impression of waterproofing capability.
It is rarely used in areas like the rooftops of condominiums 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 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 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 advantage is its high durability.
For detailed explanations of 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 Ninomiya Town, Nakagun.
Among the numerous contractors, I believe there are many people who feel, “I don’t know who to ask…”.
Choosing the right contractor at first can be challenging, 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 details of the waterproofing estimate, including processes and materials used
By confirming the above 5 points, you will be able to choose a reliable contractor.
Check if they have extensive experience in waterproofing work
About 10-20% of waterproofing work troubles are caused by construction defects during the installation.
To prevent troubles, it is important to hire a reliable contractor with experience!
You need to refer to the contractor’s website for their past work 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 on 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 whether 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 take photos 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 be easier to communicate shortly after the work is completed!
Also, to ensure early detection of any problems that may arise, confirm whether they will conduct thorough aftercare maintenance!
Since non-specialized contractors may not notice signs of issues or troubles, having a specialized contractor perform regular aftercare maintenance can help prevent problems 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 3)
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-service 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, be sure to check not only the costs but also 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 take more time and cost.
Moreover, there may be cases where customer requests are not communicated 100% to the subcontractor, leading to troubles.
By having one company handle everything from sales to construction, it enables responsible waterproofing work that is quick and cost-effective. Kakeru Koumuten conducts everything from on-site surveys 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 “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 content is appropriate for the work area!
It is important to check in detail, not just based on cost, 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 Ninomiya Town, Nakagun, Please Contact Kakeru Koumuten Co., Ltd.
Our company has handled many waterproofing projects in Ninomiya Town, Nakagun.
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 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 carry out 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 work!
We welcome competitive estimates with confidence!
Estimates are completely free, and if our company is found to be inferior to others, please feel free to decline!
For information on exterior renovations in Ninomiya Town, Nakagun, click here!
For information on exterior painting in Ninomiya Town, Nakagun, click here!
For information on roofing renovations in Ninomiya Town, Nakagun, click here!
For information on leak repairs in Ninomiya Town, Nakagun, click here!
Features of Ninomiya Town, Nakagun
Ninomiya Town, located in Nakagun, Kanagawa Prefecture, is a nature-rich town with Sagami Bay to the south and the Tanzawa Mountains to the north. It enjoys a mild climate, providing a comfortable environment throughout the four seasons.
From “Azumayama Park,” the symbol of the town, you can enjoy a panoramic view of Mount Fuji and Sagami Bay, especially in early spring when rapeseed flowers bloom abundantly, attracting many tourists. It is known as “a livable town, Shonan Ninomiya,” where rich natural environments and urban functions are harmonized.
Access is excellent, centered around Ninomiya Station on the JR Tōkaidō Main Line, making it convenient to reach Tokyo and Yokohama. Additionally, the interchange for the Odawara-Atsugi Road and the Seisho Bypass is nearby, allowing for smooth travel by car.
In recent years, the influx of young entrepreneurs has led to an increase in unique shops such as bakeries, cafes, and restaurants, enhancing the town’s charm. Furthermore, events like morning markets and marches organized by local residents are actively held, attracting many visitors.
In this way, Nakagun Ninomiya Town is an attractive place where nature, history, and culture harmonize, making it beloved by many as a tourist destination and residential area.
If you live in Nakagun Ninomiya Town 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 Tokyo.
Ninomiya Town Area List
Ninomiya Town Isshiki / Ninomiya Town Kawai / Ninomiya Town Nakazato / Ninomiya Town Ninomiya / Ninomiya Town Fujimigaoka / Ninomiya Town Matsune / Ninomiya Town Midorigaoka / Ninomiya Town Yamanishi / Ninomiya Town Yurigaoka
Consultations via LINE are also very welcome◎
We are also updating our Instagram regularly◎ 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！
