The Department of Business, Energy and Industrial Strategy provides advice on what tradespeople need to do to register as Green Homes Grant installer.

As the clocks go back on Sunday, ushering in the winter months, thousands of homeowners in England are looking for Green Homes Grant installers to help them heat their home for less.

Tradespeople will be preparing for a busy time of year and with the government's new Green Homes Grant scheme, there’s even more opportunity to grow your business by becoming a registered installer.

Vouchers are available for up to £5,000 for most homeowners, or £10,000 for low income households under the scheme, which runs until 31 March next year.

How to get accredited

More than 1,000 installers have already signed up to the scheme. If you want to become a registered Green Homes Grant installer, first check out what qualifications you must already have and then follow these six steps:

1. Register as a certified installer with TrustMark

You will be added to a directory of certified installers, where homeowners can contact you to get a quote.

2. Register to be a Green Homes Grant Installer

You will be asked to sign up to the Terms and Conditions of the scheme and provide your company’s details for payment. You will need to register for each of the scheme’s measures you are planning to carry out. You must have received confirmation that your registration has been successful before you offer to carry out work under the scheme.

3. Once registered, you can give quotes to customers

The price quoted should reflect the total costs of the installation including materials, labour and VAT. It should be your usual price and not be higher than the price you would have quoted if the installation was not being carried out under the scheme.

4. Once you give your quote to the customer, they can apply for a voucher

If approved, the voucher will contain your name or your business’s name. Vouchers cannot be used to help pay for works that were carried out before the voucher was issued.

5. When your customer receives their voucher, you can start work

You should not start any work until the customer’s application has been approved, they have been issued with a voucher and have asked you to go ahead with the work.

6. When the work is complete, you’ll be paid in five working days

You will be paid for the costs covered by the voucher once the work has been completed and you have confirmed you have received any customer contribution. The payment will come from the grant administrator. Most installers will get the grant payment within five working days.

Where a customer contribution is required, the customer contribution is a condition of voucher eligibility. Accepting non-payment to secure the work – or paying this yourself – will make the voucher invalid and constitute fraud.

For more information, and for a list of primary and secondary measures eligible under the Green Homes Grant Scheme, visit the website here.


To become a Green Homes Grant installer, you must already be certified to install energy efficiency measures against Publicly Available Specification (PAS) standards:

  • PAS 2030: 2017
  • PAS 2030: 2019
  • PAS 2035: 2019 (for park homes, high rise buildings, and buildings that are both traditionally constructed and protected).

You must also be certified by a body that has been accredited by the United Kingdom Accreditation Service (UKAS).

To install low carbon heating measures, such as heat pumps, you must be certified with the Microgeneration Certification Scheme (MCS).

Why become a Green Homes Grant installer

  • £2 billion of government money available for homeowners to upgrade their homes under the Green Homes Grant scheme
  • The scheme creates new work for accredited tradespeople in green construction, supporting more than 100,000 jobs across the UK
  • With rising demand for green home improvements, as a Green Homes Grant installer you can expect to see an increase in your customer volumes
  • Businesses and tradespeople will be able to play their part in making housing stock fit for the future. Collectively, we will be able to deliver low carbon homes, providing healthier and more comfortable living conditions, while helping reach the goal of net-zero carbon by 2050
  • It is estimated 24 million homes across the country need energy-efficiency improvements, which is a huge opportunity for tradespeople
  • It is a fantastic opportunity to for building companies to affirm their green credentials and enhance their reputation in the industry as a trusted installer, with a Trustmark quality marker.