For solar panel and battery installation in
Ebina City, Kanagawa Prefecture,
Kakeru Koumuten is your trusted choice!
Kakeru Koumuten is a company specializing in exterior renovations based in Kanagawa Prefecture.
We also handle exterior renovations in Ebina City, Kanagawa Prefecture,
and you can trust us with the installation of solar panels and batteries!
Here, we would like to introduce “Reasons why Kakeru Koumuten is chosen for solar panel installations”.
“How to choose a solar panel contractor in Ebina City”
“About the costs of solar panel and battery installation”
“Subsidies available for solar system installation in Ebina City”
We will also explain these 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 Ebina City,
this information will definitely be helpful, so please take a look!
目次
- 1 Reasons why Kakeru Koumuten is chosen for solar panel installations in Ebina City, Kanagawa Prefecture
- 1.1 1. We also handle exterior renovations other than solar panel installation!
- 1.2 2. Specialized equipment for exterior renovations
- 1.3 3.Complete In-House Construction
- 1.4 4. Various Permits Obtained & Skilled Workers on Staff
- 1.5 5. Warranty and Aftercare
- 1.6 6. Flexible and Prompt Response
- 1.7 7. Human Resource Development
- 2 Subsidies and Grants Available in Ebina City, Kanagawa Prefecture that May Apply
- 2.1 National Subsidy “Support Project for the Introduction of Storage Battery Systems in Homes”
- 2.2 Kanagawa Prefecture “Subsidy for Solar Power Generation Equipment and Home Storage Battery Installation for Existing Homes”
- 2.3 Kanagawa Prefecture “Subsidy for Self-Consumption Type Solar Power Generation Equipment”
- 2.4 Ebina City “About the Environmental Conservation Support Project Subsidy”
- 3 Solar Panel Installation & Storage Battery Installation Price List
- 4 Self-Estimate and Profit Simulation for Solar Power Generation
- 5 Customer Feedback
- 6 Examples of Solar Panel Installation
- 7 How to Choose a Solar Panel Installation Contractor in Ebina City, Kanagawa Prefecture
- 8 Benefits of Introducing Solar Power Equipment
- 9 What Points Should Be Noted When Introducing Solar Power Generation?
- 10 How to Choose Solar Panels?
- 11 If you are looking for a solar panel installation company in Ebina City, Kanagawa Prefecture, please consult Kakeru Koumuten Co., Ltd.
- 12 Features of Ebina City, Kanagawa Prefecture
Reasons why Kakeru Koumuten is chosen for solar panel installations in Ebina City, Kanagawa Prefecture
One reason why our company is entrusted with solar panel installations by customers in Ebina City is that we “have a base within Kanagawa Prefecture.”
Additionally, we have “unique strengths in solar panel installation that cannot be replicated by other companies,”
which have received high praise from many customers.
solar panel installation work in Ebina City, so we would be grateful if you could compare our estimates with those of other companies.
Because we are confident, we welcome estimates from any number of companies!
1. We also handle exterior renovations other than solar panel installation!

Most issues 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 at the installation site.
It is reassuring to have someone knowledgeable about roofs to avoid maintenance and trouble 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 set up scaffolding in-house.
By conducting 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, we 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
When installing solar panels, roofing work is often involved, generating various types of waste materials such as paint, wood, and metal.
Most contractors dispose of these materials all together, but by sorting and recycling the waste, 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
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., allowing 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, giving us confidence in our construction techniques.
We are capable of handling large-scale roofing 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 every year, and we send out notification DM each year.
If you have any questions about the warranty, please click on the image above!
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 places, 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 wishes.
7. Human Resource Development
We create various roof models to enhance skills and conduct practical training.
Since the construction method varies depending on the shape and slope of the roof, we regularly provide skill enhancement training so that each staff member can handle various cases.
Subsidies and Grants Available in Ebina 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 support 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 methods, 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 amounts are 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 efforts to combat 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” 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.
As a condition, it is required that more than 30% of the generated electricity is 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 (maximum 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
Ebina City “About the Environmental Conservation Support Project Subsidy”
Solar Power Generation System
A subsidy of 20,000 yen per 1 kW of generating capacity or one-third of the installation/purchase expenses, whichever is lower. The maximum amount is 200,000 yen. If the installation cost is lower, that amount will be applied. Amounts under 1,000 yen will be rounded down. For example, the calculation of the subsidy amount would be 5.12 kW × 20,000 yen = 102,400 yen → 102,000 yen (rounded down to the nearest 1,000 yen), but if the expenses are 80,000 yen, then 80,000 yen will be applied.
Stationary Lithium-ion Storage Battery
A subsidy of 70,000 yen per unit or one-third of the installation/purchase expenses, whichever is lower. Amounts under 1,000 yen will be rounded down.
Smart House Addition
In addition to solar power generation and HEMS, if one of the following is installed simultaneously: a storage battery, EneFarm, or V2H charging/discharging equipment, an additional subsidy of 20,000 yen will be provided as a “Smart House Addition” (applicable for a total of three equipment sets).
Subsidy Requirements (Common)
- Those who are installing new equipment or introducing vehicles (only new items/new cars are eligible, including leases)
Note 1: The applicant must match the contractor for construction, etc. (orderer) and the electricity supply contract holder (only for solar power generation facilities).
Note 2: Equipment or vehicles that have already been installed or purchased are not eligible for subsidies. - Those who are installing equipment or introducing vehicles at their home or business within the city (newly built houses with equipment are also acceptable)
Note 1: For homes within the city, a resident registration must be established there.
Note 2: For vehicles, the parking location and primary place of use must be within the city. - No outstanding municipal taxes or national health insurance taxes (for subscribers only).
- Completion of installation/purchase and submission of completion notice must be done by March 31, 2026 (Tuesday).
For more details, please see here
Solar Panel Installation & Storage Battery Installation Price List
Self-Estimate and Profit Simulation for Solar Power Generation
With the simulator above,
you can obtain an estimated quote and a profit simulation for up to 30 years!
If you know the total installation capacity of solar panels on the roof and the capacity of the storage battery, you can get an estimated quote and profit simulation!
Customer Feedback
Examples of Solar Panel Installation
| 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 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 a storage battery. I heard that subsidies are available, and I would like to know how much subsidy I can receive. |
Our Proposal
We visited to provide an estimate and created a layout diagram for the solar panels based on the blueprints!
The layout diagram shows the arrangement of solar panels when placed on the roof.
Since we can also determine the installation capacity, it allows for power generation simulations and financial simulations.
We have understood the expected amount of subsidies available, and we explained this to the customer along with the estimate!
How to Choose a Solar Panel Installation Contractor in Ebina City, Kanagawa Prefecture
There are many solar panel installation contractors available in Ebina 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.
● Have extensive knowledge not only about solar panels but also about roofs
● Confirm the presence of warranties and aftercare maintenance
● Obtain estimates from multiple contractors (at least 3 companies)
● Check if they provide support for subsidy applications
By confirming the above 4 points, you will be able to choose a reliable contractor.
Knowledge of roofing as well as solar panels
Many 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 roofing and waterproofing at the installation site is also crucial.
⚠︎Examples of troubles caused by contractor’s lack of knowledge
・Solar panels were installed on a deteriorated roof, leading to leaks..
・Solar panels were installed on a roof with a short lifespan, requiring renovations to detach and reattach the panels within a few years..
・Misjudging the type of waterproofing led to incorrect treatment and subsequent leaks..
and more
When installing solar panels, understanding the condition and type of the existing roof allows you to avoid unnecessary expenses and unexpected troubles.
Confirm the presence of warranties and aftercare maintenance
When choosing a solar installation contractor, check for warranties.
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 has a warranty period, they will respond free of charge if leaks occur after installation.
Additionally, some contractors offer aftercare services separate from warranties, 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!
Please check the DM, and if you wish, we will come to perform aftercare maintenance!
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:
“Check the items in the estimate”
“Types 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!
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 the construction starts 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 as follows!
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!
If you plan to use the generated electricity at night, installing a storage battery is essential!
Benefit 2: You can utilize subsidies!
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 amount through subsidies is a significant advantage!
Benefit 3: Environmentally friendly!
Solar power generation contributes to the reduction of carbon dioxide emissions and decreases dependence on fossil fuels, which helps mitigate global warming.
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 insulation 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!
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
Maintenance costs refer 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 reattaching 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 drilling holes to secure solar panels.
Drilling holes inevitably increases the risk of leaks.
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.
How to Choose Solar Panels?
There are many manufacturers of solar panels, and their output (power generation) and costs vary.
There is no definitive answer to “which manufacturer has the best solar panels”, and 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 the 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 a limited area, and the more power generated, the better!
Solar panels come in various sizes depending on the manufacturer, and their power generation also differs.
For example, a 350W panel and a 400W panel may seem at first glance that the higher output panel is better.
However, if the size of the panel 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 based on the degradation rate of solar panels
Solar panels have a degradation rate, and their power generation gradually decreases over 10 or 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.
For output warranties, 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 be sure to check the warranties of the manufacturers you are considering!
If you are looking for a solar panel installation company in Ebina 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 Ebina City.
We have received requests from many customers, including renovation companies and real estate agencies, who have contacted us!
Kakeru Koumuten promises “high-quality renovations at low cost”, and we have received positive feedback from many customers.
We continue to update our construction performance records every year, and we will strive to improve quality so that even more customers can be satisfied in the future.
Our company can perform all types of exterior renovations, not only roof overlay work and re-roofing but also partial roof repairs, exterior painting, and exterior wall overlay methods.
We are also happy to assist with small jobs such as partial repairs and rain gutter cleaning!
In urgent cases such as leak repairs, we may be able to provide emergency measures without scaffolding, so please consult us!
“I want to know about recommended solar panels,” “I want to keep costs as low as possible,” “I just want an estimate for now“, we will provide optimal solutions for your specific requests.
We will never propose unnecessary work that prioritizes profit!
We always stand in our customers’ shoes and propose the best construction plans!
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!
Estimates are completely free, and if you find that our company is inferior to others, feel free to decline!
Features of Ebina City, Kanagawa Prefecture
Ebina City, Kanagawa Prefecture, is located almost in the center of the prefecture, covering an area of 26.59 square kilometers. The city is largely divided into flatlands in the west and hilly areas in the east, known as a fertile agricultural region blessed with a mild climate and rich soil. The average annual temperature is 16.5 degrees Celsius, and the annual precipitation is 1,438 millimeters.
Transportation access is also very convenient, with Ebina Station served by three lines: the JR Sagami Line, the Odakyu Odawara Line, and the Sagami Railway Main Line. This provides good access to urban areas such as Tokyo and Yokohama, with travel times of about 46 minutes to Shinjuku Station and about 26 minutes to Yokohama Station. Additionally, there are interchanges for the Tomei Expressway and the Ken-O Expressway, making travel by car convenient as well.
The city is well-equipped with large commercial facilities, and shopping malls like “Lalaport Ebina” are frequented by many people. On the other hand, its rich natural environment is also attractive, making it a city that is noted for being easy to live in and suitable for raising children.
Our company is based in Kanagawa Prefecture and has handled many exterior construction and solar power projects in Ebina 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 Ebina City, Kanagawa Prefecture
Kakeru Koumuten Co., Ltd. accepts requests throughout Kanagawa Prefecture and Tokyo.
List of Areas in Ebina City
Ebina City Izumi / Ebina City Imazato / Ebina City Ogi-machi / Ebina City Otani / Ebina City Otani Kita / Ebina City Otani Minami / Ebina City Kashiwagatani / Ebina City Katsuse / Ebina City Monzawabashi / Ebina City Kami-Imaizumi / Ebina City Kamigou / Ebina City Kamikawachi / Ebina City Kawaraguchi / Ebina City Kokubunji-dai / Ebina City Kokubun Minami / Ebina City Kokubun Kita / Ebina City Satsuki-cho / Ebina City Shimo-Imaizumi / Ebina City Shakke / Ebina City Sugikubo / Ebina City Sugikubo Kita / Ebina City Sugikubo Minami / Ebina City Chuo / Ebina City Nakakawachi / Ebina City Nakashinden / Ebina City Nakano / Ebina City Hamada-cho / Ebina City Higashi-Kashiwagatani / Ebina City Hongou / Ebina City Megumi-cho / Ebina City Bouji
・Trust Kakeru Koumuten for exterior wall painting in Ebina, Kanagawa!
・Trust Kakeru Koumuten for roof renovations in Ebina, Kanagawa!
・Trust Kakeru Koumuten for exterior renovations in Ebina, Kanagawa!
・Kakeru Koumuten Co., Ltd. project achievements
・Kakeru Koumuten Co., Ltd. aftercare services
・Kakeru Koumuten Co., Ltd. service menu and price list
・Kakeru Koumuten Co., Ltd. staff blog and announcements
・Explaining the importance of getting multiple estimates and points to compare!
・Top 12 solar power manufacturers! Features and selection tips included!
・What are the installation costs for solar power? Comprehensive tips to reduce costs!
・What are the best locations for installing solar power? Points to consider when selecting installation sites!
・Find out more about solar power estimates here!
We welcome inquiries via LINE as well◎
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!







