Leave Waterproofing Work in Minami-ku, Yokohama to Kakeru Koumuten Co., Ltd.!
If you are looking for a waterproofing contractor in Minami-ku, Yokohama
Contact Kakeru Koumuten
Kakeru Koumuten is a company specializing in exterior renovations based in Yokohama.
We receive many requests for waterproofing work in Minami-ku, ranging from single-family homes to apartment buildings.
“Reasons why Kakeru Koumuten is chosen in Minami-ku”
“About the costs of waterproofing work”
“How to choose a waterproofing contractor”
“About subsidies and grants applicable to waterproofing work in Minami-ku”
We will explain the above four points!
This will definitely be helpful for customers considering waterproofing work in Minami-ku, Yokohama, so
please take a look!
Reasons why Kakeru Koumuten is chosen for waterproofing work in Minami-ku, Yokohama
Regarding the reasons why our company is entrusted with waterproofing work by customers in Minami-ku, Yokohama,
One reason is that we have a base in Yokohama.
“Our strengths in waterproofing work that cannot be imitated by other companies”
have received high praise from many customers.
“Cost,” “Quality,” “Plan” are areas where we have absolute confidence, so
we would appreciate it if you could compare our estimates with those from 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 renovation services.
We have established 5 bases centered around Aoba-ku, Yokohama for material storage and showrooms.
In-house Scaffolding Materials
We own the scaffolding materials necessary for temporary scaffolding required for waterproofing work, allowing us to assemble temporary scaffolding in-house.
By conducting scaffolding work with our own scaffolding team instead of outsourcing, we can also reduce scaffolding construction costs.
Since everything is handled in-house, we can significantly reduce costs by shortening the construction period!
We have enough scaffolding materials for approximately 50 single-family homes!
Storage of materials in our large in-house warehouse
We store roofing materials and waterproofing components.
By ordering a large quantity of materials at once, we can procure 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 color tones.
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. 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 price comparisons!
3. Various Permits and Skilled Workers
We have obtained construction industry permits and permits for the collection and transportation of industrial waste!
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 responsibility and address the issue!
Additionally, aftercare maintenance is available annually, and we will send you a DM reminder for aftercare maintenance each year.
During aftercare maintenance, we will check the entire waterproofing system and assess the condition of any deterioration.
5. Flexible and Prompt Response
Our company is equipped to handle various troubles and situations.
If we cannot access the rooftop 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 may cause issues, so we have established a system to keep the same representative throughout the process.
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 buildings.
Subsidies and Grants Related to Waterproofing Work in Minami-ku, Yokohama
If damage from natural disasters is recognized, it may be covered by fire insurance.
Considerations for waterproofing damage due to natural disasters may 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!
Property Tax Reduction System for Condominiums with Major Repairs (Condominium Longevity Promotion Tax System)
To promote the longevity of condominiums, there is a system that reduces the property tax amount for the following fiscal year by half for condominiums that meet certain requirements and undergo major repairs contributing to longevity between April 1, 2023, and March 31, 2027, provided that the necessary documents are submitted to the Tax Division of the Ward Office within three months of the completion of the work.
Condominium Longevity Promotion Tax System
Yokohama City Official Website
About the Costs of Waterproofing Work
⇧Construction Menu｜For information on waterproofing costs, click here
Customer Feedback
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
| Construction Details |
| Urethane waterproofing ventilation 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 a 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 I am worried about leaks. ・I would like 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 the adhesion method, air rising from the building can cause bulges in the waterproof layer, so we proposed the “urethane waterproofing ventilation buffer method.”
The ventilation buffer method involves applying a ventilation buffer sheet over the entire area before installing the urethane waterproofing.
By applying the ventilation buffer sheet first, the air rising from the building is controlled by the ventilation sheet and expelled through the “ventilation pipe.”
This method can prevent the most common issue with waterproofing, which is bulging in the waterproof layer!
After explaining the materials and methods, you entrusted the project to us among the four estimates!
Timing for Waterproofing Work
Leaks Already Occurring
If leaks are already occurring, it is necessary to address them 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.
Bulging or Cracking of the Waterproof Layer
If the waterproof section is cracked, it can lead to rainwater intrusion.
If the waterproof layer is bulging, it indicates that moisture is accumulating within the layer.
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 the accumulation of moisture or rainwater.
This can be caused by poor drainage or sinking of the waterproof layer due to aging.
Exceeding Durability Years
Generally, the durability of waterproofing work is between 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.
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 is a method that involves adhering synthetic rubber sheets to the surface to prevent water intrusion.
It 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 durability is a significant advantage.
For detailed information 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 information on PVC sheet waterproofing!
4. Long Sheet Waterproofing
Long sheet waterproofing, officially known as “slip-resistant 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 performance.
It is rarely used in areas like rooftops of apartments where people do not frequently enter and exit.
For detailed information 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 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 low cost, it is estimated that about 80% of single-family home balconies use FRP waterproofing.
However, it is not suitable for areas with complex shapes, making it less appropriate for rooftop applications.
For detailed information 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 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 Minami-ku, Yokohama.
Among the numerous contractors, there are likely many who feel “I don’t know where 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 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 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 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 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 and check them!
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 if they provide thorough aftercare maintenance!
Since non-specialized contractors may not notice early signs of problems or troubles, having a specialized contractor conduct regular aftercare maintenance can prevent issues before they occur!
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 3)
When requesting waterproofing work, always get estimates from multiple contractors.
We recommend obtaining estimates from at least 3 companies.
Even for the same waterproofing work, costs and warranties or after-services may vary between contractors.
Moreover, obtaining multiple estimates makes it easier to negotiate prices. To request at the lowest possible cost, getting estimates from several contractors is essential.
When comparing estimates, check not only the costs but also details like “types of materials used” and “construction methods”!
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 take more time and cost.
Additionally, there may be cases where customer 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, in the unlikely event of leaks or troubles, a company that has its own craftsmen can respond to and resolve issues quickly!
Carefully Confirm the Details, Process, and Materials 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, 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 installation location!
It is important not to judge solely by 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 waterproofing contractors in Minami-ku, Yokohama, please contact Kakeru Koumuten Co., Ltd.
Our company handles many waterproofing projects in Minami-ku, Yokohama.
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 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 handle small partial works!
In addition to waterproofing work, we can carry out roofing work, exterior painting, and exterior cover methods all in-house for exterior renovations.
We are confident that we will not be outdone in terms of cost, quality, and efficiency compared to other companies 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!
Click here for exterior renovations in Minami-ku, Yokohama!
Click here for exterior painting in Minami-ku, Yokohama!
Click here for roofing renovations in Minami-ku, Yokohama!
Click here for exterior cover work in Minami-ku, Yokohama!
Click here for leak repairs in Minami-ku, Yokohama!
Characteristics of Minami-ku, Yokohama
Minami-ku, Yokohama is located in the southern part of the city, with a population of about 200,000, making it one of the most populous areas in the city. The Yokohama Municipal Subway Blue Line and Keikyu Line run through the ward, making it very convenient to travel to central Yokohama and Tokyo.
Additionally, the roads are well-maintained, providing excellent transportation access.
Additionally, the diverse residential areas and commercial facilities make Minami-ku attractive, with many traditional shopping streets and numerous events contributing to an active community. Historical buildings and cultural spots are also scattered throughout, allowing you to feel the region’s history.
If you live in Minami-ku and have any concerns regarding waterproofing work or your home, please feel free to contact us!
Waterproofing Work Service Area
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and all of Tokyo.
List of Areas in Minami-ku, Yokohama
Aoba-ku, Yokohama, Iidogaya Kamimachi / Aoba-ku, Yokohama, Iidogaya Shimomachi / Aoba-ku, Yokohama, Iidogaya Nakamachi / Aoba-ku, Yokohama, Urakubocho / Aoba-ku, Yokohama, Eirakucho / Aoba-ku, Yokohama, Enokicho / Aoba-ku, Yokohama, Ooka / Aoba-ku, Yokohama, Ohashicho / Aoba-ku, Yokohama, Kotodai / Aoba-ku, Yokohama, Karasawa / Aoba-ku, Yokohama, Kyoshincho / Aoba-ku, Yokohama, Komeiji / Aoba-ku, Yokohama, Sannomachi / Aoba-ku, Yokohama, Sanya / Aoba-ku, Yokohama, Shimizuoka / Aoba-ku, Yokohama, Shukucho / Aoba-ku, Yokohama, Shirokanemachi / Aoba-ku, Yokohama, Shiramyocho / Aoba-ku, Yokohama, Shinkawacho / Aoba-ku, Yokohama, Takasagocho / Aoba-ku, Yokohama, Takanemachi / Aoba-ku, Yokohama, Torimachi / Aoba-ku, Yokohama, Nakazatocho / Aoba-ku, Yokohama, Nakazato / Aoba-ku, Yokohama, Nakajimacho / Aoba-ku, Yokohama, Nakamuracho / Aoba-ku, Yokohama, Nagata Kita / Aoba-ku, Yokohama, Nagata Sannodai / Aoba-ku, Yokohama, Nagata Dai / Aoba-ku, Yokohama, Nagata Higashi / Aoba-ku, Yokohama, Nagata Minamidai / Aoba-ku, Yokohama, Nagata Minami / Aoba-ku, Yokohama, Nishinakacho / Aoba-ku, Yokohama, Yahatacho / Aoba-ku, Yokohama, Hananokicho / Aoba-ku, Yokohama, Hieicho / Aoba-ku, Yokohama, Higashimakidacho / Aoba-ku, Yokohama, Fushimicho / Aoba-ku, Yokohama, Futabacho / Aoba-ku, Yokohama, Heiraku / Aoba-ku, Yokohama, Bessho Nakazato Dai / Aoba-ku, Yokohama, Bessho / Aoba-ku, Yokohama, Horinouchicho / Aoba-ku, Yokohama, Makidacho / Aoba-ku, Yokohama, Maesatocho / Aoba-ku, Yokohama, Maganecho / Aoba-ku, Yokohama, Manseicho / Aoba-ku, Yokohama, Minami Ota / Aoba-ku, Yokohama, Minami Yoshidacho / Aoba-ku, Yokohama, Miharudai / Aoba-ku, Yokohama, Miyamotocho / Aoba-ku, Yokohama, Mutsukawa / Aoba-ku, Yokohama, Mutsumicho / Aoba-ku, Yokohama, Yoshinocho / Aoba-ku, Yokohama, Wakamiyacho
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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！
