If you are looking for a waterproofing contractor in Edogawa-ku, Tokyo,
come to Kakeru Koumuten

Kakeru Koumuten specializes in exterior renovations.
We receive many requests for waterproofing work from single-family homes to apartment buildings in Edogawa-ku, Tokyo.

“Reasons why Kakeru Koumuten is chosen in Edogawa-ku”
“About the costs of waterproofing work”
“How to choose a waterproofing contractor”
“About grants and subsidies available for waterproofing work in Edogawa-ku”

We will explain the above four points!

This will definitely be helpful for customers considering waterproofing work in Edogawa-ku, so please take a look!

Reasons why Kakeru Koumuten is chosen for waterproofing work in Edogawa-ku, Tokyo

Regarding the reasons why our company is entrusted with waterproofing work by customers in Edogawa-ku, Tokyo,
“Our strengths in waterproofing work that cannot be imitated by other companies” have received high praise from many customers.

In waterproofing work in Edogawa-ku, 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 Ownership of 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 related to scaffolding construction.

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 canprocure materials at a lower cost!
Additionally, we always have waterproofing components in stock, allowing us torespond quickly to emergency waterproofing work!

Separation of waste materials in-house

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 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 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 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 Maintenance

Waterproofing work comes with a guarantee!
Depending on the type of waterproofing work, we provide a 5 to 10-year leak warranty.
If you have any questions about the warranty, please click on the image above!
In the unlikely event that leaks are not resolved after the waterproofing work, we will take responsibility and 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 you 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 maintain 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 buildings.

Company Overview神奈川で家の外装・屋根の工事、修理なら一番若くて親切な株式会社翔工務店にお任せください。 株式会社翔工務店はリフォームを通して美しく理想の生活空間を創るお手伝いをしています。外装改修、外壁塗装、雨樋修理清掃、屋根の塗装や重ね葺き葺き変えなどの部分的な修理まで、お客様のどのようなご要望にも全力でお応えします。...

Subsidies and Grants for Waterproofing Work in Edogawa-ku, Tokyo

Tax Reduction for Promoting Longevity of Condominiums (Property Tax Reduction)

Requirements for Tax Reduction for Promoting Longevity of Condominiums

Condominiums over 20 years old

Total number of units: 10 or more

Completion of longevity improvement work at least once in the past + completion of subsequent work between April 1, 2023, and March 31, 2027

Condominiums with a management plan certification or those that have developed or reviewed long-term repair plans with advice and guidance from the municipality

The residential floor area of the exclusive part occupies more than 50% of the total

Details of Tax Reduction

Eligible: Property tax on the building portion imposed in the fiscal year following the completion of the work.

Maximum Reduction: Up to equivalent to 100㎡ per unit

Reduction Rate: The tax amount within the above range is reduced by 1/2 (50%)

Others

If damage due to natural disasters is recognized, it may be covered by fire insurance.
Considerations for waterproofing damage due to natural disasters may include “holes in the waterproof sheet caused by flying or falling objects due to wind damage,” among others.

If you are unsure whether it is covered by fire insurance, please feel free to contact us!

About the Costs of Waterproofing Work

⇧ For the construction menu | Click here for waterproofing work costs

Examples of Waterproofing Work

BEFORE

AFTER

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 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 mentioned wanting 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 direct 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 applying urethane waterproofing.
By applying the ventilation buffer sheet first, the air rising from the building is controlled by the ventilation sheet and discharged through a “ventilation pipe.”

This can prevent the most common trouble of bulging in the waterproof layer!

After explaining the materials and methods, you entrusted the work to us among the four estimates!

Timing for Waterproofing Work

Already Experiencing Leaks

If leaks have already occurred, 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 inside the waterproof 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 period can vary depending on the construction method and materials, but for some types of waterproofing, it is recommended to apply only the surface protective agent (top coat) approximately every 8 years (such as urethane waterproofing or FRP waterproofing).
We recommend conducting regular inspections starting from 5 years after construction.

Understanding the types of waterproofing and performing appropriate maintenance is essential.
If you are unsure about the type of waterproofing, please send us a photo via email or LINE, and we will help you determine it!

LINE

LINE

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 and rooftops.
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 often used on large areas such as rooftops.
Compared to urethane waterproofing, it has the advantage of faster installation since there is no waiting for drying, but it is not suitable for complex surfaces.
For more details on the advantages, disadvantages, and maintenance methods of rubber sheet waterproofing, please refer to the article below.

For more on waterproofing work | Rubber Sheet Waterproofing, click here!

3. PVC Sheet Waterproofing

PVC sheet waterproofing is a waterproof sheet made of polyvinyl chloride, and like rubber sheet waterproofing, it 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 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 “anti-slip 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 capability.
It is rarely used in areas like rooftops of apartments 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 in single-family home balconies, and the construction period is remarkably 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 construction on large surface areas, making it less appropriate for rooftops.
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 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 Edogawa-ku, Tokyo.
Among the numerous contractors, there are likely many who 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 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 poor construction during the installation.
To prevent troubles, it is important to hire a reliable contractor with experience!
You need to refer to the contractor’s website for their construction achievements and reviews to make a judgment.
There are also contractors who showcase their achievements on social media platforms like Instagram, so checking those can be effective!
It is also effective to look at waterproofing companies on review sites for reference!
A particularly recommended review site is “Google”.
Since contractors cannot arbitrarily delete low ratings, it is 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 of any construction defects or issues 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 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 ensure early detection of any issues that may arise, confirm whether they provide thorough aftercare maintenance!
Since non-specialized contractors may not notice signs of problems or troubles, having a specialized contractor perform regular aftercare maintenance can help prevent issues before they occur!

Our company sends out aftercare maintenance DM every year, so if desired, annual aftercare maintenance is possible!

Obtain estimates from multiple contractors (at least three)

When requesting waterproofing work, always obtain estimates from multiple contractors.
We recommend obtaining estimates from at least three companies.

Even for the same waterproofing work, costs may vary between contractors, and warranties and after-services may differ as well.

Additionally, obtaining multiple estimates makes it easier to negotiate prices. To request at the lowest possible cost, it is essential to get estimates from several contractors.
When comparing estimates, check not only the costs but also the “types of materials used” and “construction methods” to compare the finer details!

Confirm if they perform waterproofing work in-house

Let’s confirm whether we handle waterproofing construction in-house!
If a sales company investigates and then requests a subcontractor, it can lead to extra time and costs.
Additionally, there may be instances where customer requests are not fully communicated to the subcontractor, which can lead to troubles.
By having one company handle everything from sales to construction, we can ensure prompt and cost-effective responsible waterproofing work. Kakeru Koumuten Co., Ltd. conducts everything from on-site surveys to actual construction in-house!

Moreover, in the unlikely event of leaks or troubles, a company that employs its own craftsmen can respond and resolve issues quickly!

Carefully check the details of the waterproofing estimate, process, and materials used

Even for the same waterproofing work, there are various types such as “methods,” “materials,” and “processes,” and it is necessary to use the most suitable method and materials depending on the construction location and existing substrate.

For example, even for 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 like “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,” make sure to check the product name and confirm what kind of materials they are!

If you are looking for waterproofing contractors in Edogawa-ku, Tokyo, please contact Kakeru Koumuten Co., Ltd.

Our company has handled many waterproofing projects in Edogawa-ku, Tokyo.

Our greatest strength is that we can handle everything from proposals to temporary scaffolding setup and waterproofing construction in-house!
Kakeru Koumuten Co., Ltd. promises “high-quality waterproofing work at low cost”, and we have received positive feedback 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 projects!
In addition to waterproofing work, we can perform 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, feel free to decline!

Features of Edogawa-ku, Tokyo

While having good access to the city center, it boasts vast parks and riverbanks, creating an environment where nature is close at hand. In particular, “Kasai Rinkai Park” is one of the top leisure spots in the city, featuring an aquarium and a Ferris wheel, along with stunning views of Tokyo Bay. Additionally, along the Edogawa River, there are nature-rich areas such as “Edogawa Riverbank” and “Shinozaki Park,” which are popular among people who enjoy walking and sports.

Edogawa-ku is a residential area with many families, making it a popular choice. The area is relatively safe, and with a variety of schools and commercial facilities, it is well-regarded for its livability. Furthermore, there is a multicultural community within the ward, allowing residents to experience various cultures, which is another characteristic of the area.

Our company offers a wide range of waterproofing services in Edogawa-ku. We can handle all exterior renovations, including waterproofing, roofing, and exterior painting, with our own skilled team.

If you have any concerns, please feel free to consult with us!

Waterproofing Service Areas

Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and all of Tokyo.

List of Areas in Edogawa-ku, Tokyo

Ichinoe, Edogawa-ku / Ichinoe-machi, Edogawa-ku / Ukita-machi, Edogawa-ku / Edogawa, Edogawa-ku / Osugi, Edogawa-ku / Okunomiya-machi, Edogawa-ku / Kamiiro, Edogawa-ku / Kamishinozaki, Edogawa-ku / Kitakasai, Edogawa-ku / Kitakoiwa, Edogawa-ku / Kitashinozaki, Edogawa-ku / Komatsugawa, Edogawa-ku / Shikabone, Edogawa-ku / Shikabone-machi, Edogawa-ku / Shinozaki-machi, Edogawa-ku / Shimoshinozaki-machi, Edogawa-ku / Seishin-machi, Edogawa-ku / Chuo, Edogawa-ku / Nakakasai, Edogawa-ku / Shinbori, Edogawa-ku / Nishiichinoe, Edogawa-ku / Nishikasai, Edogawa-ku / Nishikoewa, Edogawa-ku / Nishikomatsugawa-machi, Edogawa-ku / Nishishinozaki, Edogawa-ku / Nishimizue, Edogawa-ku / Ninoe-machi, Edogawa-ku / Harue-machi, Edogawa-ku / Higashikasai, Edogawa-ku / Higashikoewa, Edogawa-ku / Higashikomatsugawa, Edogawa-ku / Higashishinozaki, Edogawa-ku / Higashishinozaki-machi, Edogawa-ku / Higashimatsumoto, Edogawa-ku / Higashimizue, Edogawa-ku / Hirai, Edogawa-ku / Funabori, Edogawa-ku / Motoichiiro, Edogawa-ku / Matsue, Edogawa-ku / Matsushima, Edogawa-ku / Matsumoto, Edogawa-ku / Mizue, Edogawa-ku / Minamikasai, Edogawa-ku / Minakoiwa, Edogawa-ku / Minamishinozaki-machi, Edogawa-ku / Tanigawauchi, Edogawa-ku / Rinkai-machi, Edogawa-ku

Consultations via LINE are also very welcome◎

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We are also updating our Instagram regularly◎ Please follow us!◎

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神奈川で屋根・雨樋・外装の工事、修理なら
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!