Updated: July 2026, 1

This subsidy supports insulation renovation using high-performance building materials in order to save energy in existing homes.
For detached houses, we will support the installation and renovation of high-performance household equipment (power storage systems, heat storage equipment, etc.) at the same time as this insulation renovation, and for apartment buildings, we will also support the introduction and renovation of heat exchange type ventilation equipment.

By insulating your home, you can expect benefits such as reducing utility costs, improving heating and cooling comfort, and reducing condensation and mold.

We act as a subsidy application agency for those who wish to take advantage of this subsidy.

By having our company act on your behalf, your company's representatives can focus on sales activities, thereby increasing sales.

*This subsidy is available nationwide.

★Public applications (September 7) are now open.
　

Process to receive subsidy

Applicants who wish to utilize the subsidy request construction work from a construction company, and the construction company then applies to our company (see the diagram below).

Therefore, customers can use subsidies as a sales tool to make proposals to applicants (orderers).

Benefits of Choosing Support Gyoseishoshi Law Firm

① Reduce the burden of in-house subsidy applications

We can outsource the in-house subsidy procedures and subsidy applications that were previously handled by sales personnel, reducing the burden.

Our specialist subsidy team handles subsidy applications. Up until now, we have applied for numerous equipment and housing subsidies.

After creating the application form, we will apply to Cool Net Tokyo, and we will also handle corrections after the application is submitted.

We have a wealth of experience in everything from preparing application documents to negotiating with the government.

②Thorough date management

We provide clear instructions on the necessary documents at each application stage, such as before and during construction, to prevent delays and omissions in applications.

In some cases, we will also handle documents from the applicant (orderer).

We can accommodate requests of 100 or more. We will guide you so that you can apply in plenty of time.

③ Providing services tailored to your business scale

In response to your company's consultations and requests, we provide services tailored to the size of your application.

We will listen to the issues that arise during the application process and guide you through the solution.

We have an in-house specialized team and can undertake large-scale subsidy work, even if the number of projects is 100 or more.

In addition, the management list is shared and the progress of all items is visualized, which prevents omissions.

④ It is also possible to apply for combined subsidies.

You can receive more subsidies by using not only Cool Net Tokyo but also various subsidies such as municipal subsidies.

　*Examples of municipal subsidies: Adachi Ward, Setagaya Ward, Shinagawa Ward, Suginami Ward, etc.

⑤ Speedy response

Our motto is fast response.

We prepare all the necessary documents and quickly create an application.

We establish specialized teams for each project, and our systematized processes enable quick response.

We handle your applications swiftly and reliably.

* If a subsidy application is handled by someone other than an administrative scrivener, it may be in violation of the law.

Our application record to date

・ZEH subsidy: 130 cases per year

・Solar power, energy farm, storage battery, HEMS installation cost subsidy: 1,000 cases per year

・Long-term quality housing renovation project: 70 projects per year

・Housing Stock Circulation Support Project Subsidy Energy-Saving Renovation Promotion Project Subsidy: 150 cases per year

・Business plan certification procedure: 1300 cases per year

・Applications for housing benefits: 1600 per year

・Applications for energy-saving housing eco points: 3600

Purpose of business

<Total insulation>

In existing houses, we will comprehensively promote improvements in energy consumption efficiency and low carbonization through CO2 reduction-related investments, and support insulation renovation using high-performance building materials.

In addition, for single-family homes, we provide support for the introduction and renovation of high-performance household equipment (power storage systems, heat storage equipment), EV charging equipment, heat exchange ventilation equipment, etc. that are carried out at the same time as this insulation renovation, and for apartment buildings (individual). will also provide support for the introduction and renovation of heat exchange type ventilation equipment, etc.

At the same time as this insulation renovation for the entire housing complex, we will also support the switch to LED lighting in common areas.

<Insulation only in the living room>

In existing houses, we are comprehensively promoting improvements in energy consumption efficiency and low carbonization through investments related to CO2 reduction, and are installing high-performance building materials (windows) in the living room (the room that is the center of daily life and where the whole family spends most of its time). ) to support insulation renovation.

In addition, for single-family houses, we provide support for the introduction and renovation of high-performance household equipment (power storage systems, heat storage equipment), EV charging equipment, heat exchange type ventilation equipment, etc. that are carried out at the same time as window renovation, and for apartment buildings (individual). will also provide support for the introduction and renovation of heat exchange type ventilation equipment, etc.

At the same time as this insulation renovation for the entire housing complex, we will also support the switch to LED lighting in common areas.

★Public applications (September 7) are now open.
　

Business scale

*Total of “total insulation” and “living room insulation only”

*Even during the open call period, the call will end when the total amount of applications reaches the budgeted amount.

Applicants eligible for subsidy and housing classification

*There are other application requirements (listed in the URL below)

⇒Total insulation:https://www.heco-hojo.jp/danref/doc/R7_09_danref_kohbo.pdf

　Insulate only the living room:https://www.heco-hojo.jp/danref/doc/R7_09_danref_kohbo_living.pdf

Products eligible for subsidy

①High-performance building materials

<Glass/Windows/Insulation> (If only the living room is insulated, only the window)
*Products must be registered with the Foundation. (https://ekes.jp/）

<Entrance door>
- Subsidy is only available if purchased at the same time as glass, window, or insulation renovation.
-Products must meet the requirements set by the Foundation. (Details below)

②LED lighting (common area)

The subsidy is only applicable if you change from non-LED lighting such as fluorescent lights to LED lighting at the same time as insulating the entire housing complex.

③Equipment

<Electricity storage system> (Available only for detached houses)

・Subsidy is only available when installed at the same time as insulation renovation of a detached house.

*Must be an SII registered product. (https://sii.or.jp/zeh/battery/search/）

Connection and operation requirements:
・Things that can effectively store renewable energy in order to increase self-consumption of renewable energy

・When introducing a power storage system, make sure that a renewable energy system such as a solar power generation system is already installed.

　It must be installed by the time the project is completed.

<Thermal storage equipment> (Available only for detached houses)

・Subsidy will only be applicable if it is installed at the same time as insulation renovation of a detached house.
・It must be an electric heat pump type water heater (EcoCute, etc.) that uses natural refrigerant.

<Heat exchange type ventilation equipment, etc.>

・Subsidy will only be applicable when installed at the same time as insulation renovation of detached houses and apartment complexes (individual).

- Air conditioning equipment (air conditioners, etc.) will only be subsidized if they are replaced.

*Replacement of malfunctioning air conditioning equipment is not eligible for subsidy.

(Applicable only for detached houses)

・The subsidy is only applicable if the purchase is made at the same time as the insulation renovation of a detached house.

>>The expenses eligible for subsidy are as follows.

・Costs for purchasing building materials (high-performance building materials) necessary for implementation of the subsidized project and expenses required for necessary construction work
・Purchase cost of home energy storage system (costs required for construction are not eligible for subsidy)
・Cost of purchasing heat storage equipment for home use and cost of construction necessary for installation
・Purchase costs for heat exchange ventilation equipment, etc. (costs required for construction are not eligible for subsidy)

About entrance door renovation

When renovating the entrance door, any of the following requirements ① to ③ must be met.

 reference:From Hokkaido Environmental Foundation “Public Application Guidelines”

Subsidy

Recruitment period

　Public recruitment period: Tuesday, September 7, 9 - Friday, December 2, 7 (must arrive by email at 12:12 p.m.)
　Deadline for completion report: Must arrive by Friday, December 8, 2

Application flow

When there is a change in the name of the solar panel (business certification)

Please apply here.

Call us

06-6442-3915(Weekdays 9 hour to 18 hour)

Available nationwide!