The Green Homes Grant is available to homeowners and residential landlords to help towards the cost of installing energy efficient improvements to domestic property. 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. The grant covers two-thirds of the cost of eligible improvements, up to a maximum government contribution of £5,000. If you receive certain benefits, the grant could cover 100% of the cost up to £10,000. The scheme operates by applying for a voucher for the proposed works, which is then used to pay your installer once the work has been completed. You must redeem the voucher and ensure improvements are completed by 31 March 2022.
This document explains all about the Green Homes Grant: Green Homes Grant
You can check your eligibility for the Green Homes Grant and apply here.
Here are some useful documents explaining some of the available technologies that can help you achieve a warmer home for less cash.