Last reviewed: 2026-05-04
Great BritainGreat British Insulation Scheme
Insulation funding for less efficient homes in lower Council Tax bands, designed to broaden access beyond ECO4 criteria.
Who may qualify
Generally targets EPC D-G homes in lower Council Tax bands (A-D in England, A-E in Scotland and Wales).
Common requirements
- EPC D-G
- Lower Council Tax band
- Property in England, Scotland or Wales
What improvements may be covered
- Loft insulation
- Cavity wall insulation
- Solid wall insulation
- Room-in-roof insulation
How to check eligibility
Use our free eligibility checker for a quick guide based on your home, household and goals. Then verify with the official source or an approved installer.
Start free checkOfficial source
GOV.UK GBIS
Last reviewed: 2026-05-04
DisclaimerThis page is for guidance only and does not guarantee eligibility. Final approval depends on the relevant scheme provider, local authority, installer assessment and property survey.
Frequently asked questions
Is loft insulation really free?
For eligible households under ECO4, GBIS or local schemes, yes. Otherwise contributions may be required.
Will insulation cause damp?
Properly installed insulation does not cause damp. A survey checks ventilation, existing condition and suitability before install.
Can flats get insulation grants?
Yes, depending on the construction type, ownership and the freeholder’s permission.