For the majority of homeowners, grants of up to £5,000 will be available but for those from low income households, this amount doubles in order for the cost of energy-efficient home improvements to be fully covered.

The Chancellor confirmed: "From September, homeowners and landlords will be able to apply for vouchers to make their homes more energy efficient and create local jobs.

"The grants will cover at least two thirds of the cost, up to £5,000 per household.

"And for low income households, we’ll go even further with vouchers covering the full cost - up to £10,000."

Measures such as loft, wall and floor insulation, double glazing, lighting, energy-efficient doors, boilers and heat pumps will all be included under the scheme, with Rishi Sunak predicting a saving a £300 per year for households who make the most of the grants.

The grant will be available from September via a Government website, yet to be launched, which will also detail an approved list of suppliers.