Working file G3

Great British Insulation Scheme cost

Name: Great British Insulation Scheme cost
Creator: Digital Signet
Published: 2026-06-22
License: https://creativecommons.org/licenses/by/4.0/

Great British Insulation Scheme cost: amount, eligibility, sunset and stacking with the other live grants.

The grant

GBIS funds a single insulation measure (cavity, loft, room-in-roof, internal or external wall). Typical homeowner-side value £1,200to£1,800.

Eligibility

EPC D to G.
Council Tax bands A to D in England, A to E in Scotland and Wales.
General Group is open; Low-Income Group routed via DWP data-matching.

Surveyed 1 October 2026. Ofgem cap for 1 October to 31 December 2026 applied (gas 7.97p, elec 26.32p, gas standing 29.68p, elec standing 54.83p). Next scheduled review 25 November 2026 (January cap announcement). [ref G3]

By Oliver Wakefield-Smith, Founder, Digital Signet. Corrections to oliver at digitalsignet dot com.