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.


UKAS Certification Requirements for the Green Homes Grant Voucher Scheme

To ensure the requirements of the Green Homes Grant Voucher Scheme (GHGVS) can be implemented to work in conjunction with the current PAS 2030:2017 and PAS 2030:2019 transition, BEIS has made changes to the transitional policy from date of the scheme launch on 28 August 2020.

Want to support the GHGVS?

Are you a business wanting to become certified and registered to support the GHGVS?

Click here to download our informational guide.

If you are business that wants to know more about how to become eligible to work on GHGVS projects, then the following 3 steps will help you decide which is relevant for your business:

What’s on offer?

Homeowners will be able to apply for a voucher to fund up to two-thirds of this cost (up to £5,000) or all the cost (up to £10,000) if the household is on low income and receives certain benefits.


Becoming TrustMark Registered:

If your business holds PAS 2030: 2017/2019 or MCS certification, you can apply for TrustMark registration. This can also be achieved through your Certification Body. Once registered with TrustMark your business will be eligible to support GHGVS customers now and in the future.

Click to start your TrustMark application through one of our Scheme Providers.



Already Certified

Businesses already PAS 2030: 2017/2019 or MCS certified and are TrustMark registered, meet the required certification for the GHGVS and can take advantage of this opportunity to offer their services to eligible customers.

Becoming Certified

New businesses wishing to become part of the Green Homes Grant Voucher Scheme must have PAS 2030: 2017/2019 or MCS certification. To find out how to become certified, contact your relevant Certification Body. 

Energy-Efficient Measures

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:

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

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 Green Homes Grant Voucher Scheme is available until the end of March 2021. 

The Green Homes Grant Voucher Scheme, 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 Green Homes Grant Voucher Scheme 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 FAQs


Green Home Grant Voucher Scheme FAQs

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

  • The Green Home Grant Voucher 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 Home 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). 

  • The main scheme is open to owner occupiers (freehold/leasehold), landlords who rent privately or though the social rented sector. It is not open to non-domestic properties or to new build homes.
  • The low-income and vulnerable scheme is open to owner-occupied households and park-home owners. 
  • The Green Home Grant Local Authority Delivery element will focus on owner occupiers, those in the private and social rented sector, with a household income of under £30,000. Local Authorities will set out detailed eligibility criteria in due course.

The scheme will start at the end of September 2020 and close at the end of March 2021.

  • The Green Home Grant Voucher 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.

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.

Please visit and download The Framework Operating Requirements (FOR) and Code of Conduct.  Annex A lists all application requirements.

Please visit our website on how to join -  and select a Scheme Provider that can support your application.

This scheme will urge consumers to engage with TrustMark Registered Businesses to have energy efficient works carried out in and around their homes, bringing increased jobs and revenue to businesses.

No – a voucher can only be issued for work to be completed under the scheme and not before. Voucher applications will be subject to the Scheme’s validation and audit process.

No – evidence is required that the work has been completed before the voucher can be redeemed. The evidence will be subject to the scheme’s validation and audit process.

No – the rules require all scheme-eligible work to be carried out by tradespeople that are TrustMark registered for that work.

TrustMark is the Government Endorsed Quality Scheme covering work a consumer chooses to have carried out in or around their home.

All energy saving improvements carried out under the new Green Home Grant Voucher Scheme must be completed by a business suitably registered with TrustMark who has been thoroughly vetted to meet required standards and has made a considerable commitment to good customer service, technical competence and trading practices.  The business will need to lodge the completed work into the TrustMark Data Warehouse.

Households will be offered a list of approved TrustMark Registered Businesses in their local area to carry out the work. Once the works are agreed, vouchers will start to be issued from the end of September so work can commence.

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

- Check if they're eligible for a voucher
- Check what improvements may be suitable for their property
- Choose which improvements they 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.
  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.

No, vouchers will only be available once the work has been completed and lodged into the Data Warehouse.
You should register for TrustMark if you are a tradesperson or business that carries out energy efficiency and/or low carbon heating improvements. Read more information on the list of measures covered by the voucher.

Before you can register with TrustMark, you must be certified to relevant standards.

If you install energy efficiency measures, you must be certified to install measures against Publicly Available Specification (PAS) standards 2030: 2017 or 2030: 2019 by a certification body that has been accredited by UKAS. More information is available on the UKAS website.

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

  1. Register as a certified installer on the TrustMark website.

  2. You will be added to a directory of certified installers on the Simple Energy Advice website, where homeowners can contact you to obtain a quote.

  3. You will need to register your company and bank details with the administrator of the voucher scheme so you can receive payments. You will need to sign up to the terms and conditions of the voucher scheme, which will be issued by the administrator as part of the registration process.

  4. Homeowners can apply for a voucher from the end of September that will cover two-thirds of the cost of the work (up to a maximum value of £5,000). Homeowners on low incomes that receive certain benefits can get 100% of the cost covered (up to a maximum value of £10,000).

  5. The voucher will contain the name of the tradesperson or business that the homeowner has selected to carry out the work. More information on this will be announced soon.

  6. The government will pay you for costs covered by the voucher after the work is completed and the voucher has been redeemed (subject to meeting the scheme and voucher terms and conditions).

Vouchers cannot be used to help pay for works that were carried out prior to the voucher being issued.


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