Great British Insulation Scheme and ECO4 Local Authority Administration Guidance

Great British Insulation Scheme and ECO4 Flex are household referral mechanisms within the wider schemes, which enable Local Authorities (LAs) and Devolved Administrations (DAs) to widen the eligibility criteria. This allows participating LAs or DAs to refer households they consider to be living in fuel poverty or on a low income, and vulnerable to the effects of living in a cold home, who may not qualify for the schemes via the standard eligibility criteria.

This guidance sets out opportunities for LAs and DAs to engage with energy suppliers in meeting their obligations to install energy efficiency measures in homes under the Great British Insulation Scheme. This guidance document also outlines the requirements that are expected of LAs when referring eligible households for the scheme, as well as providing information on our oversight and administration process.

GBIS closes on March 31 2026, all references to GBIS within the guidance are for retrospective purposes only.