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

For solar panel and storage battery installation in
Fujisawa 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 Fujisawa City, Kanagawa Prefecture,
and you can trust us with the installation of solar panels and storage batteries!
Here, we would like to introduce“Why Kakeru Koumuten is chosen for solar panel installation”.

“How to Choose a Solar Panel Contractor in Fujisawa City”
“Costs for Solar Panel and Storage Battery Installation”
“Subsidies Available for Solar System Installation in Fujisawa 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 you have no regrets about your solar panel installation, it isessential to get estimates from at least three companies!

This information will definitely be useful for customers considering solar panel installation in Fujisawa City,
so please take a look!

Reasons Why Kakeru Koumuten is Chosen for Solar Panel Installation in Fujisawa City, Kanagawa Prefecture

One reason our company is entrusted with solar panel installation by customers in Fujisawa 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 any number of companies!

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 have knowledge about solar panels, the reality is that many lack knowledge regarding the roof and waterproofing where the panels are installed.
It is safer to have someone knowledgeable about roofs to avoid maintenance issues and troubles after installation!

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 conducting scaffolding work with our own scaffolding team instead of outsourcing, we can also cut costs on 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, we can purchase materials at a lower cost!
Additionally, we always have a stock of roofing materials, allowing us to respond quickly in emergencies!

Sorting and transportation of waste materials in-house

The installation of solar panels often involves roofing work, generating various types of waste materials such as paint, wood, and metal.
While most contractors dispose of these materials all together, separating and recycling waste can lead to significant cost reductions in waste disposal fees.

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 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 roof renovations.
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 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 technicians on staff, and we are confident in our construction techniques.
We are capable of handling large-scale roofing projects such as 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.

Even if you cannot access the roof at high altitudes, we can respond using a drone!
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 also 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 methods vary 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。...

Subsidies and Grants Available in Fujisawa City, Kanagawa Prefecture that May Apply

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 government’s efforts to promote zero carbon emissions and 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” and “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 for Homes”

In Kanagawa Prefecture, subsidies are provided for the installation of “self-consumption type” systems that use electricity generated by solar panels in homes.

Eligible applicants are those who install solar power generation equipment in existing or newly built homes in 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 limit 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 details, please check the official page of Kanagawa Prefecture.

👉 Click here for details

Fujisawa City “Subsidy Program for Global Warming Countermeasure Equipment”

① Residential Solar Power Generation System (Self-Consumption Type, for Individuals)

• Subsidy Amount: 15,000 yen per 1 kW

• Maximum Amount: 50,000 yen

• Number of Applications Planned: 150 cases (first-come, first-served)

② Subsidy for Installation Costs of Solar Power Generation Systems for Businesses (for businesses)

• Subsidy Amount: 1/4 of eligible expenses
• Maximum Amount: 1,000,000 yen
• Number of Applications Planned: 3 cases (first-come, first-served)

③ Subsidy for Residential Stationary Lithium-ion Storage Batteries (for individuals)

• Subsidy Amount: 50,000 yen per case

• Number of Applications Planned: 100 cases (first-come, first-served)

Subsidy Requirements (Common)

• Construction will commence after the notification of grant decision
• If construction begins before the notification arrives, it will not be eligible for assistance. The notification will be mailed approximately two weeks after the application.
• No delinquency in municipal taxes
• The contractor must be a business located in Fujisawa City
• Submission of residence certificate
• Must be issued within the last three months, relationship and registered domicile details are not required.
• Residence certificates that include My Number are not acceptable.
• Disposal (waste, transfer, etc.) is prohibited for 10 years after installation

For more details, please see here

Solar Panel Installation & Battery Installation Price List

施工メニュー｜太陽光パネル設置・蓄電池設置の費用について太陽光パネル工事は３社以上の 相見積もりを取りましょう！！ 太陽光パネルとは？ こちらのページでは太陽光パネル設置のオススメポイン...

施工メニュー|ソーラーパネル脱着・温水器撤去費用ソーラーパネル・温水器撤去費用になります。...

Self-Estimate and Profit Simulation for Solar Power Generation

With the simulator above,
you can obtain an estimated quote and a cash flow 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 cash flow 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

Installation of Solar Panels 　Installation of Storage Batteries

Existing Roofing Material

Horizontal Metal Roof (Super Galtect)

Installation Capacity

Solar Panels: 4.3KW 　Storage 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 amount 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 storage batteries. 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 Fujisawa City, Kanagawa Prefecture

There are many solar panel installation contractors available in Fujisawa City, and it can be confusing to decide which one to choose.

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 roofs as well as solar panels is essential

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

Confirm the presence of warranties and after-sales maintenance

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

While solar panels and batteries come with manufacturer warranties, also confirm whether there is a construction warranty in case of leaks 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 after-sales services separate from warranties, so be sure to check if the contractor you are considering has after-sales service.
Since abnormalities or damage on the roof may not be visible, you might not notice them yourself.
By conducting inspections during after-sales maintenance, you can detect issues early and prevent major repairs or breakdowns!

Kakeru Koumuten Co., Ltd. offers a leak warranty as part of the construction warranty for solar panel installations.
We also provide after-sales maintenance and send out annual DM notifications!
Please check the DM, and if you wish, we will come to perform after-sales 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 solar panel installation, be sure to obtain estimates from multiple contractors.

Even if the same manufacturer is used for the same type of work, costs may vary, as well as warranties and after-sales services.

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

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

When comparing estimates, please check carefully the following:

“Confirmation of estimate items”
“Types of solar panels”
“Warranties and after-sales services”

Make sure to compare these details! If the rank of auxiliary 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 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 summarized in the five points below!

Benefit 1: Economic Benefits

The biggest advantage of installing solar panels is the economic benefit!
Although the selling price of electricity has decreased compared to ten years ago, rising electricity costs allow you to benefit from consuming the electricity you generate!
Electricity prices are expected to continue to rise, making it attractive to cover your consumption with solar power generation!
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 subsidy applications can be made!
Reducing the actual burden amount through subsidies is a significant advantage!

Benefit 3: Environmentally Friendly!

Solar power generation helps reduce carbon dioxide emissions and dependence on fossil fuels, contributing to the mitigation of global warming.
Since there is no noise or harmful substance emissions during the power generation process, it is considered an environmentally friendly method of generating electricity.

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 Points Should Be Noted When Introducing Solar Power Generation?

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

Point 1: Maintenance Costs Are 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 roof renovations 10 to 20 years later, there will be costs for 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 consider maintenance costs in advance and request a simulation 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.

Catch-type base hardware for horizontal metal roofs

Note 3: The roof will become heavier

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

13 Common Troubles with Solar Power Installation! Introducing Solutions and Preventive Measures!By installing solar power generation at home, you can expect various...

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 by total power generation of the roof

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

Solar panels vary in size and power generation depending on the manufacturer.
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 on the roof, there may be cases where “20 panels of 350W can be installed” and “15 panels of 400W can be installed,” leading to different installation capacities on the same roof due to the size difference.

400W × 15 panels = 6kW (total power generation of the roof)
350W × 20 panels = 7kW (total power generation of the roof)
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 by 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 see a 40% decrease in power generation, while others may only decrease by about 10%.
By considering the degradation rate along with the initial power generation, you can choose solar panels without regrets!

Choosing Method 3: Compare by 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 output warranties, some manufacturers offer a 30-year warranty while others provide a 10-year warranty, so it varies widely!
Since longer warranties are generally better, be sure to check the warranties of the manufacturers you are considering!

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

Our company handles a wide range of exterior renovations, including solar panel installations, roof work, and exterior wall work in Fujisawa City.
We receive requests from many customers, including renovation companies and real estate agencies, who have contacted us!

Kakeru Koumuten Co., Ltd. promises “high-quality renovations at low costs”, and we have received positive feedback from numerous customers.
We continue to update our construction performance records 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 roof replacement but also partial roof repairs, exterior wall painting, and exterior wall cover methods.
We are also happy to assist with small jobs such as partial repairs and rain gutter cleaning!

In urgent cases like leak repairs, we may be able to provide emergency measures without scaffolding, so please consult us!

Whether you want to know about recommended solar panels, keep costs as low as possible, or just get an estimate, we will provide the best solutions for your specific requests.
We will never propose unnecessary work focused on profit!
We always stand in our customers’ shoes and will propose the most suitable construction plan!

We are confident that we will not be outdone in terms of cost, quality, and organization compared to other companies in exterior construction!
We welcome competitive estimates with confidence!
Estimates are completely free, and if you find our company lacking compared to others, feel free to decline!

Features of Fujisawa City, Kanagawa Prefecture

Fujisawa City, Kanagawa Prefecture, is located in the central southern part of the prefecture and is the central city of the Shonan area facing Sagami Bay to the south. It is blessed with a mild climate and rich natural environment and has historically thrived as a post town on the Tokaido Road.

Fujisawa City faces Sagami Bay and is characterized by a mild climate throughout the year, influenced by warm ocean currents. There are few days in summer that exceed 30 degrees, and it rarely drops below freezing in winter. Particularly in winter, there is little precipitation and almost no snowfall, creating a comfortable living environment.

Transportation access is also very convenient, with Fujisawa Station served by three lines: the JR Tokaido Main Line, Odakyu Enoshima Line, and Enoshima Electric Railway. This provides good access to urban areas such as Tokyo and Yokohama, with approximately 55 minutes from Fujisawa Station to Shinjuku Station and about 40 minutes from Shonandai Station to Yokohama Station.

As a tourist spot, “Enoshima” is famous, offering a variety of leisure facilities such as marine sports and the new Enoshima Aquarium. Additionally, historical and cultural landmarks like “Isuzu Plaza” and “Stylish Jizo” can be found throughout Fujisawa City.

In this way, Fujisawa City is a livable town where the natural environment and urban functions are harmonized, and it is also gaining attention as a destination for tourism and relocation due to its good access to the city center.

Our company is based in Kanagawa Prefecture and has undertaken many exterior construction and solar power projects in Fujisawa 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 sudden troubles!

Service Areas in Fujisawa City, Kanagawa Prefecture

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

We welcome inquiries via LINE as well◎

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!