Great British Insulation Scheme (Closed)
The Great British Insulation Scheme closed to new applications on 31 March 2026. Existing applications submitted before the deadline may still be processed by energy suppliers.
Who may qualify
This scheme is closed to new applicants as of 31 March 2026.
Common requirements
- Scheme closed to new applications from 31 March 2026
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
Last reviewed: 2026-07-28
Frequently asked questions
Is loft insulation really free?
For eligible households under ECO4 or local Warm Homes schemes, yes. The Great British Insulation Scheme closed to new applications on 31 March 2026. 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.