Green Homes Grant Voucher Scheme

TrustMark & The Green Homes Grant Voucher Scheme

We are very pleased to confirm that home energy-saving improvements carried out under the new Government’s Green Homes Grant Voucher Scheme (GHGVS) must be completed by a TrustMark Registered Business giving householders quality assurance. 

Later this month, under the GHGVS, homeowners in England can check eligibility for vouchers worth up to two-thirds of the cost of hiring tradespeople to upgrade the energy efficiency of their home – the maximum contribution will be £5,000, or for those on lower incomes, a 100% grant up to £10,000 will be available for certain work. 

The vouchers, which will be issued from the end of September, will help pay for energy efficiency improvements, that will help cut energy bills and potentially save families hundreds of pounds a year.

A statement from the Department for Business, Energy & Industrial Strategy (BEIS),  said consumers will be able to use a TrustMark Registered Business from their local area to carry out energy-efficient measures in and around their homes. They will be able to use the vouchers to install one or more of the following:

solid wall, under-floor, cavity wall or roof insulation
air source or ground source heat pump
solar thermal

In addition, households can use their voucher for further energy-saving measures. These include one or more of the following:

double or triple glazing/secondary glazing, when replacing single glazing
upgrading to energy-efficient doors
hot water tank/appliance tank thermostats/heating controls

The grant scheme is available until the end of March 2021. 

The GHGVS which Chancellor Rishi Sunak launched in his summer statement, will see £2bn invested in improving the energy efficiency of the nation’s homes.

Simon Ayers, CEO of TrustMark, welcomed the opportunity to work with the industry sectors to support the delivery of quality work and ensure that consumers receive the high standard of work they should expect. The home improvements carried out under the scheme will have greater levels of technical standards and commented that the GHGVS is the “kickstart” the construction and energy sector need to help recover from the coronavirus pandemic and help the UK reach the target of being carbon neutral by 2050.  

He said: “As we undertake this journey, the construction and energy industries will play a vital role in the delivery of low carbon homes, providing healthier and more comfortable living conditions. 

“The Green Homes Grant Voucher Scheme is an important step in creating new jobs, protecting the existing and delivering low carbon housing.  As an industry, we need to collaborate to support the initiative, ensure businesses are supported and consumers can rely on the tradespeople that carry out work in and around their homes making them fit for the future. The vouchers will help prime the market and allow eligible property owners to make energy efficiency improvements and save on their energy bills.” 

Green Homes Grant Voucher Scheme Application.

Applications for eligibility will begin in September.

The frequently asked questions on this page are regularly updated. For further information on how the Green Homes Grant Voucher Scheme works go to


To understand more about the benefits of Whole House Retrofit read our guide here.

Finding a Tradesperson.

You can search for TrustMark registered tradespeople in your area by using our search tool here.

We've also created a helpful guide on what to consider when appointing a tradesperson here

Selecting your Tradesperson. 

Manage your project from quote to completion in your FREE Homeowner Dashboard.

Select up to 3 TrustMark tradespeople to quote for the work required.


Green homes grant voucher scheme FAQs

Green Homes Grant Voucher Scheme Consumer FAQ

The Green Homes Grant Voucher Scheme is a government-funded voucher scheme to help domestic customers install energy efficiency measures on their homes, helping them reduce their energy bills and their carbon emissions.

Under the new scheme, the Government will fund up to two thirds of the cost of home improvements for over 600,000 homes, supporting over 100,000 jobs in green construction. 

The Green Homes Grant Voucher Scheme is a key part of our green economic recovery following COVID-19, which will also help us on the road towards reaching net zero emissions by 2050.

The Green Homes Grant Voucher Scheme applies to England only – so won't cover homes in Scotland, Wales or Northern Ireland.


The Green Homes Grant Voucher Scheme allows homeowners to apply for a voucher that funds up to two thirds of the cost of hiring tradespeople to upgrade the energy performance of their homes - up to a maximum contribution of £5,000. It could help save families up to £600 a year on their energy bills.

For example, if a homeowner of a semi-detached or end-terrace installed cavity wall and floor insulation, costing around £4,000, the homeowner would pay just £1,320 – with the government paying £2,680. Doing so could save the owner over £200 annually on their bills and reduce their carbon footprint by cutting 700 kg of CO2 a year from their home alone. 

Low income and vulnerable households, including park homeowners and those on certain benefits, will be eligible for a grant covering up to 100% of the cost, up to £10,000.


The available measures are split into “primary” and “secondary” categories. Households will need to install at least one of the primary measures below to qualify for funding. 
Insulation: Solid wall, cavity wall, under-floor, loft, flat roof, room in roof, park home. 
Low carbon heat: Air source heat pump, ground source heat pump, solar thermal.

“Top-ups” are allowed (e.g. additional loft insulation up to the recommended level, solid wall insulation for other walls where a wall has been previously insulated), but replacements are not included. So long as there is at least one primary measure in the package of works, households will also, be able to install secondary measures.

Secondary measures can only be subsidised up to the amount of subsidy provided for primary measures. (e.g. if a household receives £1,000 for primary measures, they can only receive a maximum of £1,000 towards secondary measures). 
The secondary measures are: 
- Draught proofing
- Windows and doors: Double/triple glazing (where replacing single glazing), secondary    glazing (in addition to single glazing), upgrading to energy-efficient doors
  (where replacing doors installed prior to 2002). 
- Heating controls and insulation: appliance thermostats, hot water tank thermostats, hot    water tank insulation, smart heating controls, zone controls, delayed start thermostat,      thermostatic radiator valves.

For low-carbon heating to be installed, households will need to have adequate insulation (e.g. wall and loft, where applicable). 

To apply for the voucher, you must either:

  • own your home (including park home owners, long-leaseholders and shared ownership)
  • be a private or social landlord

Your property must be in England to be eligible for the scheme.

Landlords cannot apply for the low-income portion of the scheme.

New-build properties that have not previously been occupied are not eligible for the scheme.

You cannot apply for the scheme if you have already received a grant from your local authority as part of the Local Authority Delivery Scheme.


The scheme will start at the end of September 2020 and close at the end of March 2021.
No – a voucher can only be issued for work to be completed under the scheme and not before. For further information, please refer to the administrator of the scheme.
  1. Use the Simple Energy Advice (SEA) website to check what energy efficiency or low carbon heat improvements can be made to your home.

  2. Use the SEA website to find accredited tradespeople or businesses in your area that are able to undertake the work and obtain quotes from them. You should get at least 3 quotes to make sure you are getting the best value for money.

  3. Apply for the voucher from the end of September 2020.

You should only enter into a commitment to carry out work once you have had confirmation that your voucher application has been accepted.

You must make sure the work is scheduled to be completed, and the voucher redeemed subject to its terms and conditions, by 31 March 2021.



If they are carrying out works at your property within the Green Homes Grant Voucher Scheme, they must be registered with TrustMark. You can always check this on the TrustMark website at
All tradespeople registered with TrustMark are bound by the criteria in the TrustMark Framework Operating Requirements and audited by their Scheme Provider to check for compliance.
We currently cover 49 trades for work carried out in and around the home including Repair, Maintenance & Improvement (RMI); retrofit and energy efficiency measures.

Remember to check Registered Firms licensed trades before you engage them – as not all may be covered in their TrustMark membership.
All TrustMark Registered Businesses commit to working to the required standards of the Government Endorsed Quality scheme, as laid out in the TrustMark Code of Conduct.

These businesses are monitored and checked by their Scheme Providers, all of which work to the stringent Framework Operating Requirements document as stipulated by TrustMark.
It is very easy to find a TrustMark Registered Business local to you. Simply use the Online Directory to input your postcode and select the type of trade you require.  

All Registered Businesses are thoroughly vetted by their Scheme Providers to check technical competence, customer service and appropriate trading practices are in keeping with the Government Endorsed Quality scheme.
A Scheme Provider is an organisation working to TrustMark's Framework Operating Requirements to ensure the businesses that join the Government Endorsed Quality scheme through them adhere to required standards.  

Scheme Providers are quality-minded organisations and leaders within their sectors.  They may be trade associations, Competent Person Schemes, governing bodies or certification bodies.  In becoming a TrustMark Scheme Provider an organisation has made a commitment to raising standards within their industry, particularly in relation to; quality of workmanship & service, customer care and commitment to tackling areas of customer detriment or undesirable trading practices.
The Green Homes Grant scheme will deliver energy efficiency improvements to over 600,000 homes, supporting over 100,000 jobs if all vouchers are claimed. It could help save families up to £600 a year on their energy bills.

It will make people’s homes warmer and more environmentally friendly. It will deliver average savings of £257 for the main scheme, and as much as £640 a year for those living off the gas grid in the low-income and vulnerable households’ scheme.

The Green Homes Grant scheme will be time-limited, to help stimulate the economic recovery and support and create tens of thousands of green jobs immediately.

Allocations for future years will be determined at the forthcoming Spending Review in the Autumn.

You can apply for a voucher from the end of September 2020. Before you apply, you can use Simple Energy Advice (SEA) tool to check the following: 

  • Check if you’re eligible for a voucher
  • Check what improvements may be suitable for your property
  • Choose which improvements you would like and see an estimate of how much they may cost
More information on how to apply for a voucher will be made available in due course.


You can use our Online Directory to find a Registered Business in your area.  Their contact details will be shown here and you can call or email them in order to obtain quotes or further details.  

To find out how to make communication easier with TrustMark Registered Business, visit our Consumer Portal page for information and benefits of creating a portal account.

Our Quotes and Contracts page gives information and guidance on what you should look for once you have received the 3 quotes that we recommend you obtain before starting any project.

No, vouchers will only be available once the work has been completed and lodged into the Data Warehouse.

There are certain items that are not covered by the voucher, including:

  • building a new extension or conversion to your home
  • insulating a conservatory with no fixed heating
  • installing a new fossil fuel boiler (such as gas, oil or LPG boilers)
Read more information on items that are and are not covered by the voucher. This list will be updated (last updated 4 September 2020).


BMF and TrustMark to deliver quality supply chain for Green Homes Grant Voucher Scheme

The Builders Merchants Federation (BMF) will work in partnership with TrustMark to ensure that homeowners can be confident of the quality of both the materials and the workmanship of projects completed under the new Green Homes Grant Voucher Scheme.


Page Last Updated: 17th September 2020