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 2021.
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.