Leave Your Solar Panel Installation Work in Isehara City, Kanagawa Prefecture to Kakeru Koumuten Co., Ltd.!

For solar panel and storage battery installation in
Isehara City, Kanagawa Prefecture,
Kakeru Koumuten is at your service!

Kakeru Koumuten is a company specializing in exterior renovations based in Kanagawa Prefecture.
We also handle exterior renovations in Isehara City, Kanagawa Prefecture,
and you can trust us with the installation of solar panels and storage batteries!
Here, we would like to introduce “Reasons why Kakeru Koumuten is chosen for solar panel installation”.

“How to Choose a Solar Panel Contractor in Isehara City”
“About the Costs of Solar Panel and Storage Battery Installation”
“About Subsidies Available for Solar System Installation in Isehara City”
We will also explain the above three points!

The installation of solar panels carries risks such as “the occurrence of leaks” and other troubles.
To ensure a satisfactory solar panel installation, it is essential to obtain estimates from at least three companies!

For customers considering the introduction of solar panels in Isehara City,
this information will definitely be helpful, so please take a look!

Reasons why Kakeru Koumuten is chosen for solar panel installation in Isehara City, Kanagawa Prefecture

One reason why we are entrusted with solar panel installation by customers in Isehara City is
that we have a base in Kanagawa Prefecture,
but we also have “strengths in solar panel installation that cannot be imitated by other companies”
, which has received high praise from many customers.

Because we are confident, we welcome estimates from as many companies as possible!

1. We also handle exterior renovations other than solar panel installation!

 
Most troubles such as leaks that occur during solar panel installation are due to the lack of knowledge of the solar panel installation contractors.
While specialized contractors for solar panel installation have knowledge about solar panels, the reality is that many lack knowledge regarding the roof and waterproofing at the installation site.
It is reassuring to have someone knowledgeable about roofs to avoid maintenance and troubles after construction!

Kakeru Koumuten Co., Ltd. is strong in roofing work and can also detach and attach solar panels in-house, allowing us to respond quickly to maintenance and urgent troubles after solar panel installation!

2. Specialized equipment for exterior renovations

Kakeru Koumuten Co., Ltd. has prepared the following warehouses and material storage areas to provide solar work and exterior renovations at low cost and high quality.
We have established five bases centered around Yokohama City, Kanagawa Prefecture for material storage and showrooms.

In-house ownership of scaffolding materials

We own the scaffolding materials necessary for the installation of solar panels, allowing us to assemble the scaffolding ourselves.
By performing scaffolding work with our own scaffolding team instead of outsourcing, we can also reduce the costs associated with scaffolding work.
We have scaffolding materials for approximately 50 single-family homes!

Storage of materials in our large in-house warehouse

 
We store roofing materials and paints, and we can also store removed solar panels.
By ordering a large quantity of materials at once, you can purchase materials at a lower cost!
Additionally, we always have a stock of roofing materials, allowing us to respond quickly in emergencies!

In-house sorting and transportation of waste materials

The installation of solar panels often involves roofing work, generating various types of waste materials such as paint, wood, and metal.
Most contractors dispose of these materials all at once, but by sorting and recycling the waste, significant cost reductions can be achieved.

Exterior Renovation Dedicated Showroom

In our showroom, not only can you have meetings, but you can also
check the actual foundation brackets for solar panels and see how they are installed on the roofing materials!
We can also provide simulations for the revenue and installation costs when introducing solar panels!

Since roofing and exterior wall work often accompany each other, we have samples of roofing materials and models that show the structure, allowing us to provide detailed explanations!

3．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. This allows us to keep costs down while providing high-quality roof renovations.
Additionally, one representative will assist you from the estimate to the completion of the work.
Since the same person handles everything, including sales and construction management, smooth communication is possible.

We can provide consistent in-house construction from temporary scaffolding installation to exterior wall painting and roof renovations!

4. Various Permits Obtained & Skilled Workers on Staff

We have obtained construction industry permits and permits for industrial waste collection and transportation!
We also have nationally certified sheet metal workers and painting specialists on staff, and we are confident in our construction techniques.
We can also handle large-scale roof projects such as those for factories!

5. Warranty and Aftercare

In addition to the manufacturer’s warranty for solar panel installation, we also provide our own rain leak warranty!
Aftercare is available annually, and we send out notification DM each year.
If you have any questions about the warranty, please click on the image above!

Maintenance of Solar Power Generation｜Thorough Explanation of Importance, Frequency, and Cost Estimates!When introducing solar power generation, it is essential to consider...

6. Flexible and Prompt Response

Our company is equipped to handle various roofing troubles and situations.

If you cannot access the roof at high altitudes, we can utilize a drone for assistance!
During rain leak investigations, we can also conduct inspections using a thermal imaging camera.

If the power generation of the solar panels decreases due to dirt, we can provide cleaning with a specialized brush.
We will respond according to your preferences.

7. Human Resource Development

We are creating various roof models to enhance our skills and conducting practical training.
Since the construction method changes depending on the shape and slope of the roof, we regularly provide technical training to ensure that all staff can handle various cases.

Corporate Profile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。...

Possible subsidies and grants available inIsehara City, Kanagawa Prefecture

National Subsidy “Support Project for the Introduction of Storage Battery Systems in Homes”

The government is implementing the “Support Project for the Introduction of Storage Battery Systems in Homes” to assist with the installation of storage batteries.

This subsidy provides 30,000 yen per kWh (with a maximum limit of 600,000 yen) for those who install residential storage batteries that meet certain conditions.

Additionally, this program is part of the national initiative aimed at achieving zero carbon emissions and promoting renewable energy, allowing for further advancement of “self-consumption” of electricity when used in conjunction with solar power generation.

For detailed eligibility requirements and application procedures, please check the official website.

👉 Click here for the official website

Kanagawa Prefecture “Subsidy for Solar Power Generation Equipment and Home Storage Battery Installation for Existing Homes”

In Kanagawa Prefecture, subsidies are provided for those who install “solar panels” or “home storage batteries” in existing homes.

The subsidy amount is a flat 40,000 yen for solar power generation equipment only, up to 100,000 yen for storage batteries depending on capacity, and a total of up to 300,000 yen when both are installed simultaneously.

This program is part of measures against global warming and aims to promote the use of renewable energy.

For detailed conditions and application methods, please check the official page of Kanagawa Prefecture.

👉 Click here for details

Kanagawa Prefecture “Subsidy for Self-Consumption Type Solar Power Generation Equipment”

In Kanagawa Prefecture, subsidies are provided for the installation of “self-consumption type” solar panels that generate electricity for home use.

Eligible applicants are those who install solar power generation equipment in existing or newly built homes within the prefecture.

The condition is that at least 30% of the generated electricity must be consumed on-site (installation of storage batteries is also acceptable).

The subsidy amount is 10,000 yen per kW, with a maximum of 4 kW (up to 40,000 yen).

For example, if you install a 3 kW solar panel, you can receive a subsidy of 30,000 yen.

This program aims to promote the use of renewable energy and achieve Kanagawa Prefecture’s “Zero Carbon Society”.


For more information, please check the official page of Kanagawa Prefecture.

👉 Click here for details

Isehara City “Net Zero Energy House Subsidy”

Isehara City provides subsidies for those who introduce Net Zero Energy Houses (ZEH) to contribute to the realization of a decarbonized society and the prevention of global warming.

Those who meet all of the following (1) to (3) are eligible for the subsidy.
(1) Individuals registered as residents in this city with no tax arrears
(2) Those who have newly built or purchased a Net Zero Energy House, or have renovated to a Net Zero Energy House within the city
(3) Those who have received a subsidy decision for the introduction of a Net Zero Energy House from the national government or Kanagawa Prefecture

The subsidy unit price is 100,000 yen.


For more details, please check the official page of Isehara City.

👉 Click here for details

Solar Panel Installation & Battery Installation Price List

⇧ Construction Menu | For costs related to solar panel installation and battery installation, click here

⇧ Construction Menu | For costs related to solar panel removal and water heater removal, click here

Self-Estimate and Profit Simulation for Solar Power

With the simulator above,
you can obtain an estimated quote and a financial simulation for up to 30 years!
If you know the total solar panel installation capacity for the roof and the capacity of the storage battery, you can get an estimated quote and a financial simulation!

Customer Testimonials

カテゴリ ‘voice’ は見つかりません

• customer reviews

  

  The craftsmen and their subordinates breathed perfectly, and I felt a sense of mutual trust.

• customer reviews

  

  The response was very fast, so I was able to make a decision right away.

• customer reviews

  

  They were energetic, polite and courteous, and very pleasant to deal with.

Case Studies of Solar Panel Installations

Construction Details

Solar Panel Installation 　Battery Installation

Existing Roofing Material

Horizontal Metal Roof (Super Galtect)

Installation Capacity

Solar Panel: 4.3KW 　Battery: 5KW class

Base Mounting Hardware Used

Niigata Manufactured Sales / Aluminum Catch-Type Hardware

Price Range

2.2 million yen to 2.3 million yen 　*Due to the subsidy provided, the actual burden is approximately 1 million yen 　Estimated Recovery Period for Construction Costs: Approximately 8 to 9 years (self-consumption)

Construction Period

Approximately 3 days

Completion Month

April 2025

Inquiry Details

I am considering the installation of solar panels and a storage battery. I heard that subsidies are available, and I would like to know how much subsidy I can receive.

How to Choose a Solar Panel Installation Contractor in Isehara City, Kanagawa Prefecture

There are many solar panel installation contractors available in Isehara City, and it can be confusing to choose the right one.

Therefore, when requesting solar panel installation contractors or storage battery installation work, let’s confirm the following 4 points.

By confirming the above 4 points, you will be able to choose a reliable contractor.

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Knowledge of roofing in addition to solar panels

Many causes of poor installation of solar panels stem from a lack of knowledge on the part of the contractor.
While knowledge of solar panels is certainly important, understanding the roof and waterproofing at the installation site is also crucial.

Confirm whether there is a warranty and aftercare maintenance

When choosing a solar installation contractor, make sure to check for warranty availability.

While solar panels and batteries come with manufacturer warranties, also confirm whether there is a construction warranty in case leaks occur after installation!

If the contractor offers a warranty period, they will respond free of charge in the event of leaks after installation.

Additionally, some contractors provide aftercare services separate from the warranty, so be sure to check if the contractor you are considering has aftercare services.
Since abnormalities or damage on the roof may not be visible, you might not notice them yourself.
By conducting inspections during aftercare maintenance, you can detect issues early and prevent major repairs or failures!

Kakeru Koumuten Co., Ltd. provides a leak warranty as part of the construction warranty for solar panel installations.
We also conduct aftercare maintenance and send out annual DM notifications!
Please check the DM, and if you wish, we will come to perform aftercare maintenance!

Warranty and Payment翔工務店の屋根工事、外壁塗装工事、シーリング工事の保証など簡単にご説明させて頂いております！！ 弊社では前金、中間金は頂いておりません！！...

Obtain estimates from multiple contractors (at least 3 companies)

When requesting the installation of solar panels, be sure to obtain estimates from multiple contractors.

Even if the same manufacturer is involved and the same construction work is being done, costs may vary, as well as warranties and after-sales services.

Additionally, obtaining multiple estimates makes it easier to negotiate prices.

To request your desired repair contractor at a lower cost, it is essential to obtain estimates from multiple contractors.

When comparing estimates, please check carefully the following:

“Check the items in the estimate”
“Type of solar panels”
“Warranties and after-sales services”

Make sure to compare these details closely! If the quality of the materials is low or if steps are skipped, costs can be reduced, so avoid making decisions based solely on price!

【横浜市】屋根リフォームの相見積もりの重要性と比較するポイントを解説します！こんにちは！株式会社翔工務店です！ 横浜市の屋根リフォーム専門店の翔工務店です！こちらのページでは屋根リフォームの見積りをとる...

Check if they provide support for subsidy applications

Subsidies are often available for the installation of solar panels and storage batteries, but there is a possibility that they may not be granted due to application errors.
If you proceed with the support of the contractor, there should be no issues with the application.
Make sure to apply for the subsidy before starting the construction and proceed with the work only after it has been accepted!

After the construction, the flow will be that the subsidy will be decided and granted!

Benefits of Introducing Solar Power Equipment

The benefits of installing solar panels are as follows!

Benefit 1: Economic Advantage

The biggest advantage of installing solar panels is the economic benefit!
Although the selling price of electricity has decreased compared to ten years ago, due to rising electricity costs, you can benefit by consuming the electricity you generate!
Electricity prices are expected to continue rising, making it attractive to cover your consumption with solar power!
If you plan to use the generated electricity at night, installing a storage battery is essential!

Benefit 2: Subsidies can be utilized!

Subsidy conditions and amounts vary by prefecture and municipality, but there is a high probability that you can apply for subsidies!
Reducing the actual burden through subsidies is a significant advantage!

Benefit 3: Environmentally Friendly!

Solar power generation contributes to mitigating global warming by reducing carbon dioxide emissions and dependence on fossil fuels.
It is considered an environmentally friendly method of power generation as it does not produce noise or harmful substances during the process.

Benefit 4　Improved Insulation Effect!!

By installing it on the roof or rooftop, insulation properties are enhanced.
Especially in summer, it can effectively block direct sunlight, providing significant heat shielding benefits!

Benefit 5　Electricity can be used even during power outages!!

By installing a storage battery, it becomes possible to use electricity even during emergencies such as power outages!

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What are the points to be careful about when introducing solar power generation?

Next, we will explain the “three points to be careful about” when installing solar panels!

Point 1: Maintenance costs may be incurred

The maintenance costs are related more to the roof where the solar panels are installed rather than the solar panels themselves.
If you perform a roof renovation 10 to 20 years later, there will be costs associated with removing and reinstalling the solar panels.
If the existing roof is deteriorating, it is reassuring to renovate it with durable roofing materials before installing the solar panels!

It would be comforting to request a simulation considering maintenance costs before introducing solar panels!

Point 2: The risk of leaks increases depending on the roofing material

Slate roofs and tile roofs require holes to be made in the roof to secure solar panels.
As a result, there is an unavoidable risk of leaks due to these holes.
Of course, we will ensure proper waterproofing, but if you are concerned about making holes, one option is to replace the roofing material with a metal roof and secure the solar panels using the catch method.

Special Catch Base Hardware for Horizontal Metal Roofs

Note 3: The Roof Will Become Heavier

Since solar panels will be placed on the roof, it will become heavier. In the case of tile roofs, it may be reassuring to replace them with lighter roofing materials.

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How to Choose Solar Panels?

There are many manufacturers of solar panels, and their output (power generation) and costs vary.
It is not simply a matter of “this manufacturer has the best solar panels”; what is important is to choose solar panels that are suitable for your life plan and building!
Here are some points to consider when comparing solar panels!

Choosing Method 1: Compare Based on Total Roof Power Generation

When installing solar panels on the roof, it is important to consider how much power can be generated in a limited area, and the more power generated, the better!

The sizes of solar panels vary by manufacturer, and so does their power generation.
For example, a 350W output panel and a 400W output panel may seem that the higher output panel is better at first glance.
However, if the size of the panels does not fit well with the roof, there may be cases where “20 panels of 350W can be installed” and “15 panels of 400W can be installed,” resulting in different numbers of panels that can be installed on the same roof due to size differences.

400W × 15 panels = 6kW (total roof power output)
350W × 20 panels = 7kW (total roof power output)
As shown above, even if the output of a single panel is lower, the total output of the roof may be higher!

It is important to consider the total output of the roof rather than just the output of a single panel!

Choosing Method 2: Compare Based on Degradation Rate of Solar Panels

Solar panels have a degradation rate, and their power generation gradually decreases over 10 years and 20 years.
After 30 years, some may have a 40% decrease in power generation, while others may only decrease by about 10%.
By not deciding solely based on initial power generation and considering the degradation rate, you can choose solar panels without regrets!

Choosing Method 3: Compare Based on Warranty Period

There are several types of warranties for solar panels, including “output warranty,” “natural disaster warranty,” and “system warranty,” and the warranty periods vary by manufacturer.
Regarding the output warranty, some manufacturers offer a 30-year warranty while others provide a 10-year warranty, so it varies widely!
A longer warranty is always better, so let’s check the warranties of the manufacturers you are considering!

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If you are looking for a solar panel installation contractor in Isehara City, Kanagawa Prefecture, please consult Kakeru Koumuten Co., Ltd.

Our company handles many exterior renovations, including solar panels, roofing work, and exterior wall work in Isehara City.
We receive requests from a wide range of clients, including renovation companies and real estate agencies!

Kakeru Koumuten Co., Ltd. promises “high-quality renovations at low costs”, and we have received great feedback from many customers.
We continue to update our construction achievements every year, and we will strive to improve quality to satisfy even more customers in the future.

Our company can perform all exterior renovations, not only roof overlay work and re-roofing but also partial roof repairs, exterior painting, and exterior cover methods.
We are also happy to assist with small jobs like partial repairs and rain gutter cleaning!

In case of emergencies like leak repairs, we may also be able to provide temporary measures without scaffolding, so please consult us!

“I want to know recommended solar panels,” “I want to keep costs as low as possible,” “I just want an estimate for now“, we will provide the best solutions for your specific requests.
We will never propose unnecessary work that prioritizes profit!
We always stand in our customers’ shoes and will propose the optimal construction plan!

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 you find our company lacking compared to others, feel free to decline!

Features of Isehara City, Kanagawa Prefecture

Isehara City, Kanagawa Prefecture, is a livable area rich in nature and history. It is located almost in the center of Kanagawa Prefecture and is characterized by being surrounded by abundant nature, including Mt. Oyama (大山), which is at the eastern end of the Tanzawa mountain range. The city also has agricultural land, making it a region active in the production of fresh vegetables and fruits.

Since Isehara City is located inland, it has a relatively mild climate, but summers can be hot and winters can be quite cold. The annual precipitation is relatively high, and special attention is needed during the rainy season and typhoon season. In winter, cold winds from the Tanzawa mountain range may blow, but it enjoys a mild climate compared to other areas in the Kanto region.

The main station in Isehara City is Isehara Station on the Odakyu Odawara Line. Access to Shinjuku and Odawara is smooth, and since the limited express Romancecar also stops here, you can travel comfortably to the city center.

Using the Atsugi Interchange on the Tomei Expressway or the Isehara Interchange on the Odawara-Atsugi Road makes it convenient to travel to Yokohama, Tokyo, Hakone, and Izu. Additionally, National Route 246 runs through the area, providing good access by car.

One of the attractive spots in Isehara City is the “Ooyama Afuri Shrine.” This shrine, located on the slopes of Mount Ooyama, is a spiritual site that attracts worshippers from across the Kanto region. It is accessible by cable car, and visitors can enjoy stunning views of Sagami Bay from the observation deck. Also, the “Hinata Yakushi,” designated as an Important Cultural Property of Japan, is a historic temple established during the Nara period, set in a rich natural environment where you can enjoy seasonal landscapes. There are also various hot spring facilities within Isehara City, cherished as relaxing spots after sightseeing or hiking.

Our company is based in Kanagawa Prefecture and handles many exterior construction and solar power projects in Isehara City. We are happy to assist with partial roof repairs such as roof overlay work, roof replacement, and leak repairs, as well as other repairs! Please feel free to consult us about any urgent issues!

Service Areas in Isehara City, Kanagawa Prefecture

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

Consultations via LINE are also very welcome◎

For roofing, guttering, and exterior work and repairs in Kanagawa, contact Kakerukoumuten Co., Ltd..

AAA is a young company with an average age in the early 20s, but our technology is second to none.

One of our greatest strengths is that we can do all of our own scaffolding, roofing, and painting work. In this industry, where work is generally divided, we are able to provide a complete set of services, which saves time and effort in management and reduces costs. Above all, if there is any trouble, we will come to you right away!

We can confidently declare this. We are the youngest and most friendly renovator in Kanagawa!