Green Homes Grant

What is the green Home Grant

If you’re a homeowner or residential landlord you can apply for a Green Homes Grant voucher towards the cost of installing energy efficient improvements to your home.

Improvements could include insulating your home to reduce your energy use or installing low-carbon heating to lower the amount of carbon dioxide your home produces.

You must redeem the voucher and ensure improvements are completed by 31 March 2022.

How much you can get

Vouchers will cover two-thirds of the cost of eligible improvements, up to a maximum government contribution of £5,000.

If you, or someone in your household, receive certain benefits you may be eligible for a voucher covering 100% of the cost of the improvements. The maximum value of the voucher is £10,000


You may be eligible if you live in England and:

  • you own your own home (including long-leaseholders and shared ownership)
  • you own your own park home on a residential site (including Gypsy and Traveller sites)
  • you’re a residential landlord in the private or social rented sector (including local authorities and housing associations)

You cannot get the Green Homes Grant for newly built homes which have not been previously occupied.

What the voucher can be used for

We recommend that you seek advice on how best to improve the energy efficiency and heating in your home.

You can use the Simple Energy Advice (SEA) website to check what energy efficiency or low carbon heating improvements may be best suited to your home.

You can also seek advice from your property’s Energy Performance Certificate (EPC) or from a retrofit assessor. You cannot claim for the cost of any advice as part of your grant.

Home improvements

The available measures are split into ‘primary’ and ‘secondary’ measures.

Primary measures

The voucher must be used to install at least 1 primary measure.


The following insulation measures are covered by the voucher:

  • solid wall insulation (internal or external)
  • cavity wall insulation
  • under-floor insulation (solid floor, suspended floor)
  • loft insulation
  • flat roof insulation
  • pitched roof insulation
  • room in roof insulation
  • insulating a park home


Low carbon heat

The following low carbon heating measures are covered by the voucher:

  • air source heat pump
  • ground source heat pump
  • solar thermal (liquid filled flat plate or evacuated tube collector)
  • biomass boiler
  • hybrid heat pump


Secondary measures

If you install at least 1 primary measure, your voucher can be used to help cover the cost of any of the following secondary measures.

The amount you get towards the cost of secondary measures cannot exceed the amount you get for primary measures.

You will only be able to redeem vouchers for secondary measures once you have installed a primary measure and redeemed the vouchers for that measure.

Windows and doors

The following measures are covered by the voucher:

  • draught proofing
  • double or triple glazing (where replacing single glazing)
  • secondary glazing (in addition to single glazing)
  • energy efficient replacement doors (replacing single glazed or solid doors installed before 2002)


Heating controls and insulation

The following measures are covered by the voucher:

  • hot water tank thermostat
  • hot water tank insulation
  • heating controls (such as, appliance thermostats, smart heating controls, zone controls, intelligent delayed start thermostat, thermostatic radiator valves)


What the voucher covers

Costs that are covered by the voucher include:

  • labour
  • materials
  • VAT

Additional works will be covered by the voucher if they are necessary for the installation of measures.

Work cannot be completed by yourself, a member of your household or your immediate family.

All work covered by the voucher must be completed by a TrustMark-registered installer who is also registered for the scheme. Your installer will also need to meet PAS and MCS standards when installing your measures.

How to apply

  1. Check your eligibility
  2. Check what energy efficiency or low carbon heat improvements may be suitable for your home
  3. Find certified installers in your area that are able to carry out the work
  4. Apply for the voucher

The Green Homes Grant scheme will never include official representatives coming to your property uninvited or cold calling on the phone to encourage you to join the scheme.

Getting a quote

Once you have decided which improvements to have installed, we recommend getting at least 3 quotes from certified installers to make sure you are getting the best value for money.

You only need 1 quote from a Green Homes Grant registered installer in order to apply for a voucher.

You will need to provide a copy of the quote when you apply. If the quote seems unreasonably high, the scheme administrator may request that you provide another quote.

You can use more than one installer to install different measures. You only need to complete one application form, but you will need to provide a separate quote for each measure.

If you would prefer, to minimise contact during local restrictions, you can ask your installer to provide a quote remotely using a video call or detailed photos.

Applying for a voucher does not guarantee that your application will be approved. You should not commit to start any work until you have been successfully issued with a voucher.

Getting the voucher

You will receive a separate voucher for each of the measures that you have applied to install.

Each voucher is only valid for the measure and property you have applied for. The voucher is only for use by the named applicant and cannot be transferred to another person.

You can only begin work once your voucher has been issued. Any work that was started before that date cannot be claimed.

Vouchers will be valid for 3 months from the date they are issued or until 31 March 2022 (whichever is earlier). Vouchers must be redeemed before the validity period ends. You can request a voucher extension at any time before your voucher has expired, unless the scheme has been closed.

Getting the work done

Once your voucher has been issued, the installer can begin the work.

Your installer may ask you for a deposit. This should not be larger than the amount they would normally charge. It cannot be larger than your expected contribution to the cost of measures under the quote they have provided you.

If you’re applying under the low-income scheme, your installer can only ask you for a deposit when the total cost of the work exceeds the £10,000 grant. In this case, only the excess amount will be eligible for a deposit.

After the work is done

Once the work is completed, your installer must give you:

  • a dated copy of an invoice showing the supply and installation cost of your chosen measures. You must have 1 invoice per measure
  • any certification for energy efficiency improvement measures
  • a guarantee document from the installer
  • anMCS certificate and relevant manufacturer instructions (if you have installed a low carbon heating measure)
  • a Biomass Suppliers List (if your measure is a biomass fuelled low carbon heating system)

Redeeming the voucher

You must redeem your voucher before it expires.

To redeem your voucher you will need:

  • your reference number (received when you first applied for the grant)
  • the post code of the property where the measure has been installed
  • the email address that you used to make your application
  • your voucher number
  • the final cost of the measure (including VAT, as applicable)
  • a digital copy of your dated invoice. You will need 1 invoice per measure

You will need to confirm that:

  • the installation was completed satisfactorily
  • you have received the necessary certification documents from the installer
  • you have paid your share of the costs to the installer (if applicable)

When you redeem your voucher the grant will be paid on your behalf directly to the installer.