Working file G1

Boiler Upgrade Scheme 2026

Boiler Upgrade Scheme 2026: amount, eligibility, sunset and stacking with the other live grants.

The grant

£7,500to£7,500(ASHP or GSHP). £5,000 for a biomass boiler in rural eligible cases, and £2,500 for an air-to-air heat pump (grant category added 28 April 2026). From 21 July 2026, off-gas-grid homes running on oil or LPG get an extra £1,500 on an air or ground source heat pump, taking the grant to £9,000; that uplift runs until March 2027. Paid to the MCS-certified installer who deducts it from the homeowner invoice.

Eligibility

  • Owner-occupier or private-rented property in England and Wales.
  • Replacing a fossil-fuel heating system (gas, oil, LPG, coal or electric).
  • Installed by an MCS-certified installer, who applies for the grant on your behalf.

The 28 April 2026 amendment removed the old EPC preconditions. A valid Energy Performance Certificate is no longer required, and outstanding loft or cavity-wall insulation recommendations are no longer a barrier. Where a current EPC exists it is used as evidence of the property; where none exists the installer supplies alternative proof of the existing fuel, typically a recent utility bill plus photographs of the current heating system.

Process and timeline

Installer applies on the homeowner's behalf via the Ofgem BUS portal. Voucher issued in 5 working days; valid for 3 months; commissioning paperwork submitted within 3 months of install.

Run dates

The 28 April 2026 amendment extended the scheme to 2030, aligning it with the private-rented EPC C horizon; treat 2030 as the planning horizon for the current scheme.

Surveyed 22 June 2026. Ofgem Q3 2026 cap applied (gas 7.33p, elec 26.11p, gas standing 29.04p). Next scheduled review 26 September 2026 (Q4 cap publication). [ref G1]
By Oliver Wakefield-Smith, Founder, Digital Signet. Corrections to oliver at digitalsignet dot com.