Home / Grants / Great British Insulation Scheme (GBIS)
ClosedGreat British Insulation Scheme (GBIS)
Free / subsidised insulation (scheme closed)
Region: UK-wide · Last verified 2026-07-07
Insulation
Who is eligible?
(Historic) Least energy-efficient homes (broadly EPC D–G), with a share reserved for low-income households.
How to apply
Closed to new applications.
Good to know
Ended 31 March 2026. Kept for reference; insulation support is now folded into the Warm Homes Plan.
Disclaimer: This is a plain-English summary, not financial advice. Grant terms change frequently — always confirm the current details on the official page above before acting.
Frequently asked questions
How much could I get from Great British Insulation Scheme (GBIS)?
Free / subsidised insulation (scheme closed), based on the current published terms for this scheme. Grant values are reviewed periodically, so always confirm the current figure on the official page linked below before you budget for it.
How do I know if I qualify for Great British Insulation Scheme (GBIS)?
The criteria are summarised above under "Who is eligible?". For a quick, personalised read on your chances based on your property and current heating, use the free eligibility check on this page — it takes under a minute.
How do I actually apply for Great British Insulation Scheme (GBIS)?
Closed to new applications.
Can I combine Great British Insulation Scheme (GBIS) with other grants or schemes?
Sometimes — combining schemes is common but not guaranteed for every combination. Check the official guidance below, or ask a quoted installer, since they'll usually know what can be stacked together for your situation.
Does Great British Insulation Scheme (GBIS) cover air conditioning as well as heating?
Cooling-only air conditioning generally isn't grant-funded in the UK. Heat pumps that provide both heating and cooling are often eligible — see "Who is eligible?" above for the specifics of this scheme.