The voucher must be used to install at least 1 primary measure. This can be an insulation measure and/or a low carbon heating measure.
The following insulation measures are covered by the voucher:
- solid wall
- under floor
- cavity wall
- loft Insulation
- flat roof
- room in roof
- insulating a park home
Low carbon heat measures
The following low carbon heating measures are covered by the voucher:
- air or ground source heat pump
- solar thermal (liquid filled flat plate or evacuated tube collectors)
- biomass boilers
You can use the voucher to ‘top up’ existing measures (for example, installing additional loft insulation up to the recommended level).
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:
- draught proofing
- double/triple glazing (where replacing single glazed windows)
- secondary glazing (in addition to single glazing)
- external energy efficient doors (replacing single glazed or solid doors installed before 2002)
- heating controls Hive system you can use from your phone to control temperature
- hot water tank thermostats and insulation
The amount you get towards the cost of secondary measures cannot exceed the amount you get for primary measures.
How much you can get
The government will provide a voucher that covers two-thirds of the cost of qualifying energy efficiency or low carbon heating improvements to your home. The maximum value of the voucher is £5,000.
If you are on a low income and receive certain benefits, you can receive a voucher covering all of the cost of the improvements. The maximum value of the voucher is £10,000.