Leave Waterproofing Work in Saiwai-ku, Kawasaki to Kakeru Koumuten Co., Ltd.!
If you are looking for a waterproofing contractor in
Kakeru Koumuten is the place to go
Kakeru Koumuten is a company specializing in exterior renovations based in Kanagawa Prefecture.
We receive many requests for waterproofing work in Aoba-ku, from single-family homes to apartment buildings.
“Reasons why Kakeru Koumuten is chosen in Aoba-ku”
“About the costs of waterproofing work”
“How to choose a waterproofing contractor”
“About subsidies and grants applicable to waterproofing work in Aoba-ku”
We will explain the above four points!
This will definitely be helpful for customers considering waterproofing work in Aoba-ku, Kawasaki, so please take a look!
Reasons why Kakeru Koumuten is chosen for waterproofing work in Aoba-ku, Kawasaki
Regarding why our company is entrusted with waterproofing work by customers in Aoba-ku, Kawasaki,
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 exterior renovations such as waterproofing at lower costs and faster.
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 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 the 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 available.
2．Complete In-House Construction
One of Kakeru Koumuten’s major strengths is our 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 project. Since the same person will handle everything, including sales and construction management, smooth communication is ensured. 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
Our waterproofing work comes with a warranty! 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 address the issue!
Additionally, aftercare maintenance is available annually, and we will send you a DM notification for aftercare maintenance every year. During the aftercare maintenance, we will check the entire waterproofing 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 due to height, 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 may cause issues, so our company maintains a system where the representative remains the same.
6. Human Resource Development
To enhance skills, we create models of various buildings and conduct practical training. We regularly provide skill improvement education so that each staff member can handle various buildings.
Possible Subsidies and Grants for Waterproofing Work in Saiwai-ku, Kawasaki補助金、助成金
Condominium Long Lifespan Promotion Tax Reduction (Property Tax Reduction)
Requirements for Condominium Long Lifespan Promotion Tax Reduction
Condominiums over 20 years old
Total number of units: 10 or more
Completion of long lifespan work at least once in the past + completion of the second or subsequent work between April 1, 2023, and March 31, 2027
Condominiums with a management plan certification or those that have developed or reviewed a long-term repair plan with advice and guidance from the local government
The residential floor area of the exclusive part occupies more than 50% of the total
Tax Reduction Details
Eligible: Property tax on the building portion imposed in the year following the completion of the work建物部分の固定資産税
Maximum Reduction: Up toequivalent to 100㎡ per unit
Tax Reduction Rate: The tax amount within the above range isreduced by 1/2 (50%)
Others
Damage considered from natural disasters in waterproofing may 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!
About the Cost of Waterproofing Work
⇧ Service Menu | For information on waterproofing costs, click here
Customer Testimonials
カテゴリ ‘voice’ は見つかりません
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customer reviews
Asao-ku, Kawasaki City | We received reviews about the ridge cap and rain gutter replacement work!
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customer reviews
Kohoku-ku, Yokohama | We received reviews about the roof overlay (cover method)!
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customer reviews
Kohoku-ku, Yokohama | We Received Reviews About Exterior Painting!
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customer reviews
Aoba-ku, Yokohama | We received reviews about our exterior fence construction!
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customer reviews
Tsurumi-ku, Yokohama | We received reviews about roof and exterior wall painting, as well as metalwork and rain gutter replacement work!
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customer reviews
Higashiyamato City, Tokyo | We received reviews about exterior painting and roof overlay (cover method)!
Examples of Waterproofing Work
工事内容
Roof polyurethane waterproofing work (ventilated buffer method)
Ventilation sheet: QV sheet
We received an inquiry from a customer living in Shibuya-ku, Tokyo, stating, “I am concerned about the deterioration of my rooftop and am considering waterproofing work. I would like to request an estimate first.”
Our Proposal
This time, since the customer wanted to renovate using a long-lasting method rather than just protective agents like topcoats, we proposed waterproofing work using a ventilation buffer method with high-strength urethane.
Timing for Waterproofing Work
Already Experiencing Leaks
If leaks have already occurred, it is necessary to address the issue promptly before the damage spreads.
If left unattended, it can adversely affect the interior and underlying structures, so it is essential to stop the leaks quickly.
Bloating or Cracking of the Waterproof Layer
If the waterproof area is cracked, it can lead to rainwater intrusion.
If the waterproof layer is bloated, it indicates that moisture is accumulating inside the waterproof layer.
Bloating 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 between 10 to 20 years.
Of course, the durability period can vary depending on the construction method and materials, but for some types of waterproofing, such as urethane waterproofing or FRP waterproofing, it is recommended to apply only the surface protective agent (topcoat) approximately every 8 years.
We recommend regular inspections starting from 5 years after construction.
It is important to understand the type of existing waterproofing and perform appropriate maintenance.
If you are unsure about the type of waterproofing, please send us a photo via email or LINE inquiry, 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 in layers.
Before curing, it is in liquid form, allowing it to be applied to complex shapes, and unlike sheet waterproofing, it can be installed without seams.
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 involves using waterproof sheets made of polyvinyl chloride, which are adhered to the surface to prevent water intrusion, similar to rubber sheet waterproofing.
Like rubber sheets, it is not suitable for complex shapes. Although it is more expensive than rubber sheets and urethane waterproofing, its longer durability is an advantage.
For more details on the advantages, disadvantages, and maintenance methods of PVC sheet waterproofing, please refer to the article below.
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 a waterproofing method 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 sheet waterproofing, 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.
For more details on the advantages, disadvantages, and maintenance methods of long sheet waterproofing, please refer to the article below.
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, and the construction period is significantly short, often completed in as little as one day.
Due to its lightweight and cost-effectiveness, it seems that about 80% of single-family home balconies utilize FRP waterproofing.
However, it is not suitable for installation on large surface areas, making it inappropriate for rooftop applications.
For more details on the advantages, disadvantages, and maintenance methods of FRP waterproofing, please refer to 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 adopted for 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 information on asphalt waterproofing work!
How to Choose a Waterproofing Contractor
There are many waterproofing contractors available in Saiwai-ku, Kawasaki.
Among the numerous contractors, I believe many people feel “I don’t know who to ask for help…”.
Choosing a contractor for the first time can be challenging, so I will explain 5 points to keep in mind when requesting waterproofing work.
● Have extensive experience in waterproofing work
● Confirm the existence of aftercare and warranty
● Obtain estimates from multiple contractors (at least 3 companies)
● Check if they perform waterproofing work in-house
● Carefully review the details of the waterproofing estimate, including processes and materials used
By confirming the above 5 points, you will be able to choose a reliable contractor.
Check if they have extensive experience in waterproofing work
About 10-20% of waterproofing work troubles are caused by construction defects during the installation.
To prevent troubles, it is important to hire a reliable contractor with ample 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 on review sites for reference!
A particularly recommended review site is “Google”, as contractors cannot arbitrarily delete low ratings, making it a trustworthy source of 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, make sure to confirm whether they provide a “construction warranty“!
Contractors who offer warranties are usually confident in their work, making them more trustworthy companies!
If waterproofing work has been done, make sure to have photos taken 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 ensure early detection of any issues that may arise, confirm whether they conduct thorough aftercare maintenance!
Since non-specialized contractors may not notice signs of problems or troubles, having specialized contractors perform regular aftercare maintenance can help prevent issues before they arise!
Our company sends out aftercare maintenance DM every year, so if desired, annual aftercare maintenance can be arranged!
Obtain estimates from multiple contractors (at least three)
When requesting waterproofing work, always obtain estimates from multiple contractors. We recommend obtaining estimates from at least three companies.
The costs may vary among contractors even for the same waterproofing work, and there may be differences in warranties and after-services.
Moreover, obtaining multiple estimates makes it easier to negotiate prices. To request at the lowest possible cost, obtaining estimates from several contractors is essential. When comparing estimates, be sure to check not only the costs but also the “types of materials used” and “construction methods” to compare the finer details!
Confirm whether they perform 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.
Also, 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, responsible waterproofing work can be carried out quickly and cost-effectively. Kakeru Koumuten handles everything from on-site investigations to actual construction in-house!
In the unlikely event that a leak or trouble occurs, a company that employs its own craftsmen can respond to and resolve issues quickly!
Carefully check the details, process, and materials used for waterproofing estimates
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 such as “high-strength specification,” “heat-insulating specification,” and “anti-slip specification,” so it is essential to confirm whether the construction content is appropriate for the location!
It is important not to judge solely based on cost, but to carefully check whether “the method is appropriate for the substrate?” and “are the materials suitable?”
Therefore, 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 Saiwai-ku, Kawasaki, please contact Kakeru Koumuten Co., Ltd.
Our company has handled many waterproofing projects in Saiwai-ku, Kawasaki. 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 great feedback from many customers.
We continue to update our annual construction performance, and we will strive to improve quality to satisfy even more customers in the future.
We are happy to respond to even small partial works!
Not only waterproofing work but also roofing, exterior painting, and exterior cover methods can all be carried out in-house.
We are confident that we will not be outdone in terms of cost, quality, and organization compared to other companies in exterior construction!
We welcome competitive estimates with confidence! Our estimates are completely free, and if you find that our company is inferior to others, feel free to decline!
For exterior renovations in Saiwai-ku, Kawasaki, click here!
For exterior painting in Saiwai-ku, Kawasaki, click here!!
For roof renovations in Saiwai-ku, Kawasaki, click here!
For leak repairs in Saiwai-ku, Kawasaki, click here!
Characteristics of Saiwai-ku, Kawasaki
Saiwai-ku, located in the southeastern part of Kawasaki City, features a beautiful coastline facing Tokyo Bay and lush hilly areas!
Historically, it was a thriving area for ports and fishing, but in recent years it has developed into a region with coastal tourist spots and leisure facilities, as well as industrial and residential areas, showcasing various characteristics.
If you live in Saiwai-ku and have any concerns regarding waterproofing work or your home, please feel free to contact us!
Waterproofing Service Areas
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.
List of Areas in Kawasaki City, Saiwai-ku
Endo-cho, Saiwai-ku / Omiya-cho, Saiwai-ku / Ogura, Saiwai-ku / Kashimada, Saiwai-ku / Kawahara-cho, Saiwai-ku / Kitakase, Saiwai-ku / Komukai, Saiwai-ku / Konyamachi, Saiwai-ku / Saiwai-cho, Saiwai-ku / Shimodaira, Saiwai-ku / Shinkogura, Saiwai-ku / Shinkawasaki, Saiwai-ku / Shinzukagoshi, Saiwai-ku / Shinmei-cho, Saiwai-ku / Tsukagoshi, Saiwai-ku / Todemoto-cho, Saiwai-ku / Tode, Saiwai-ku / Nakaiwai-cho, Saiwai-ku / Higashiogura, Saiwai-ku / Higashikoichiba, Saiwai-ku / Koichiba, Saiwai-ku / Furukawamachi, Saiwai-ku / Horikawamachi, Saiwai-ku / Minamikase, Saiwai-ku / Minamisaiwai-cho, Saiwai-ku / Miyako-cho, Saiwai-ku / Yagami, Saiwai-ku / Yanagimachi, Saiwai-ku
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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！
