If you are looking for a waterproofing contractor in Chigasaki City
please contact Kakeru Koumuten

Kakeru Koumuten is a company specializing in exterior remodeling in Kanagawa Prefecture.
We receive many requests for waterproofing work in Chigasaki City, ranging from single-family homes to apartment buildings.

“Reasons why Kakeru Koumuten is chosen in Chigasaki City”
“About the costs of waterproofing work”
“How to choose a waterproofing contractor”
“Subsidies and grants available for waterproofing work in Chigasaki City”

We will explain the above four points!

This will definitely be helpful for customers considering waterproofing work in Chigasaki City, so
please take a look!

Reasons why Kakeru Koumuten is chosen for waterproofing work in Chigasaki City

One reason why our company is entrusted with waterproofing work by customers in Chigasaki City is
that we have a base in Kanagawa Prefecture,
and we have unique strengths in waterproofing work that cannot be imitated by other companies, which has received high praise from many customers.

In waterproofing work in Chigasaki City,
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 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 conducting scaffolding work with our own scaffolding team instead of outsourcing, we can also reduce the costs associated with scaffolding construction.

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 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 savings on 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 project.
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 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 respond accordingly!
Additionally, aftercare maintenance is available every year, and we will send you a DM reminder for aftercare maintenance each year.
During aftercare maintenance, we will check the entire waterproofing system and assess the condition of any deterioration.

5. Flexible and Prompt Response

Our company is equipped to handle various troubles and situations.

If you are unable to access the rooftop for waterproofing checks, we will utilize drones to assess the condition.
We can also conduct investigations using thermal imaging cameras during leak inspections.

We will respond according to your wishes.
We also accept emergency measures for sudden leaks!

Since our sales and construction management are not separated, one dedicated representative will handle everything from the estimate to the completion of the work!
Changing representatives frequently can lead to miscommunication regarding the details and precautions of the work, which could cause issues, so we maintain a system where the representative remains the same.

6. Human Resource Development

We are creating various building models to improve our skills and conducting practical training.
To ensure that each staff member can handle various buildings, we regularly conduct skill enhancement training.

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 Chigasaki City

If damage caused by natural disasters is recognized, it may be covered by fire insurance.
For waterproofing, potential damage from natural disasters could include “holes in waterproof sheets caused by flying objects or falling debris due to wind disasters.”

If you are unsure whether your fire insurance applies, please feel free to contact us!

Reduction of Property Tax for Condominiums that Undergo Large-Scale Renovation Work Contributing to Longevity

From April 1, 2023, to March 31, 2027, if large-scale renovation work contributing to longevity is carried out in a condominium that meets certain criteria, the property tax for the following year after the completion of the work will be reduced (urban planning tax is not subject to reduction).

Reduction of Property Tax for Condominiums that Undergo Large-Scale Renovation Work Contributing to Longevity
Chigasaki City Official Website

About the Cost of Waterproofing Work

⇧ Construction Menu | For Information on Waterproofing Costs, Click Here

Waterproofing Construction Case Studies

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 roof, 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 work, we 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 work” for the roof.

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

After explaining the materials and methods, you entrusted us with the work 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 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 occur due to the accumulation of moisture or rainwater.
This can be caused by poor drainage or sinking of the waterproof layer due to aging.

Exceeding the Durability Period

Generally, the durability period for waterproofing work is 10 to 20 years.
Of course, the durability 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 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

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Types of Waterproofing Work

1. Urethane Waterproofing

Urethane waterproofing is a method where liquid polyurethane resin is applied in layers 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 installed 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 commonly used for large areas such as rooftops.
Compared to urethane waterproofing, it does not require waiting for drying, making it quicker to install, 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 an 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 PVC sheet waterproofing work!

4. Long Sheet Waterproofing

Long sheet waterproofing, officially known as “slip-resistant vinyl floor sheet,” is often applied in common areas of apartments and on stairs where people walk.
As the name suggests, it is slip-resistant and has high durability and wear 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.
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 long sheet waterproofing work!

5. FRP Waterproofing

FRP waterproofing involves creating a waterproof layer by hardening glass mat with epoxy resin to prevent rainwater intrusion.
It is commonly applied to balconies of single-family homes, and the construction period is significantly short, often completed in as little as one day.
Due to its lightweight and low cost, it seems that about 80% of balconies in single-family homes use FRP waterproofing.
However, it is not suitable for installation on large 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 Chigasaki City.
Among the numerous contractors, there are likely many 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 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 contents of the waterproofing estimate, processes, and materials used

By confirming the above 5 points, you will be able to choose a reliable contractor.

Confirm 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 an experienced and reliable contractor!
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”.
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 take photos of the unseen areas during the process for confirmation!
Check for leaks during rainy weather after the waterproofing work, and if there are any issues, contact the contractor immediately, as it will facilitate smooth communication shortly after the work is completed!

Additionally, to detect any issues early, confirm if they 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 troubles 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 for waterproofing work (at least 3 companies)

When requesting waterproofing work, be sure to obtain estimates from multiple contractors.
We recommend obtaining estimates from at least 3 companies.

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

Additionally, obtaining multiple estimates makes price negotiations easier. To request at the lowest possible price, it is essential to obtain estimates from several contractors.
When comparing estimates, check not only the costs but also the details such as “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 incur extra time and costs.
Moreover, there may be cases where your 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 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 employs its own craftsmen can respond to and resolve issues quickly!

Carefully Confirm the Details, Process, and Materials of Waterproofing Estimates

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 optimal 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 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 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 waterproofing contractors in Chigasaki City, please contact Kakeru Koumuten Co., Ltd.

Our company has handled many waterproofing projects in Chigasaki City.

Our greatest strength is that we can carry out everything from proposals to the installation of temporary scaffolding and waterproofing work in-house!
Kakeru Koumuten Co., Ltd. promises “high-quality waterproofing work at low cost”, and we have received high praise from many customers.
We continue to update our number of completed projects each 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 wall painting, and exterior wall overlay methods, all in-house.

We are confident that we will not be outdone by other companies in terms of cost, quality, and efficiency in exterior work!
We welcome competitive estimates with confidence!
Estimates are completely free, and if our company is found to be inferior to others, you are welcome to decline!

Characteristics of Chigasaki City

Chigasaki City in Kanagawa Prefecture is a seaside city representing the Shonan area, known for its rich natural environment and mild climate. The city features beautiful coastlines and lush parks, allowing residents to enjoy seasonal scenery.

However, compared to other coastal areas like Kamakura City and Yokosuka City, it is a low-lying area, so care must be taken in selecting roofing materials and auxiliary materials.

Kakeru Koumuten Co., Ltd. accepts exterior work in Chigasaki City as well. We offer a wide range of services including waterproofing work, roof replacement, roof overlay work, exterior wall painting, and roof painting.

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

Waterproofing Work Service Area

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

Chigasaki City Area List

Chigasaki City Akabane / Chigasaki City Akamatsu-cho / Chigasaki City Asahigaoka / Chigasaki City Amanuma / Chigasaki City Imajuku / Chigasaki City Enzo / Chigasaki City Kagawa / Chigasaki City Kozakura-cho / Chigasaki City Kowada / Chigasaki City Saiwaicho / Chigasaki City Shio midai / Chigasaki City Shimoterao / Chigasaki City Shimomachiya / Chigasaki City Jukkenzaka / Chigasaki City Matsubayashi / Chigasaki City Shirahama-cho / Chigasaki City Shineicho / Chigasaki City Serizawa / Chigasaki City Daikan-cho / Chigasaki City Takada / Chigasaki City Chigasaki / Chigasaki City Tsutsumi / Chigasaki City Tsuruga-dai / Chigasaki City Deguchi-cho / Chigasaki City Tokiwacho / Chigasaki City Tomoe / Chigasaki City Nakakaigan / Chigasaki City Nakajima / Chigasaki City Yukitani / Chigasaki City Minami-ko / Chigasaki City Nishikubo / Chigasaki City Hagioka / Chigasaki City Hama-suga / Chigasaki City Hama-take / Chigasaki City Hama-no-sato / Chigasaki City Hama-mihira / Chigasaki City Higashikaigan Minami / Chigasaki City Higashikaigan Kita / Chigasaki City Hishinuma / Chigasaki City Hishinuma Kaigan / Chigasaki City Hibari-ga-oka / Chigasaki City Fujimi-cho / Chigasaki City Heita-shin-nen / Chigasaki City Heiwa-cho / Chigasaki City Honjuku-cho / Chigasaki City Honmura / Chigasaki City Matsu-o / Chigasaki City Matsukaze-dai / Chigasaki City Matsugaoka / Chigasaki City Matsunami / Chigasaki City Mizuki / Chigasaki City Misumi-cho / Chigasaki City Midoriga-hama / Chigasaki City Murota / Chigasaki City Motomachi / Chigasaki City Yanagishima / Chigasaki City Yanagishima Kaigan / Chigasaki City Yahata / Chigasaki City Wakamatsu-cho

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!