The Department for Energy Security and Net Zero amended the details of grant categories and values in the Notice of approved grant categories and values for the Boiler Upgrade Scheme on 5 May 2026, according to the update history on the scheme's regulations page1. The page, first published on 1 April 2022, lists the standards, grant categories and grant levels approved for the scheme, which applies to England and Wales1.
The notice covers two things: the standards the Secretary of State has approved for the purposes of Regulation 4 of The Boiler Upgrade Scheme (England and Wales) Regulations 2022, and the grant categories and grant levels approved for the purposes of Regulation 13 of the same regulations1. The 5 May 2026 entry records only that the details of grant categories and values in the notice were amended; the page does not set out what changed1.
Further entries followed. On 28 May 2026 the department published the approved grant categories and values for the scheme from 21 July 2026, and on 9 June 2026 it published the Notice of standards and a Summary of standards1. On 21 July 2026 the previous version of the approved grant categories and values was removed, with the page stating that the current version should be used from that date1.
"Removed the previous version of the approved grant categories and values for the Boiler Upgrade Scheme. The current version should be used from 21 July 2026."
The page's earlier update history records changes to the approved standards. On 28 April 2025 it was updated to list MCS 007 Product Certification Scheme Requirements: Heat Pumps: version 7, published 24 April 2025, and the Home Insulation and Energy Systems Contractors Scheme (HIES) Code of Practice Version Q, published 5 March 2025 and operational from 1 May 20251. On 3 December 2024 it was updated to list Issue 2 of Microgeneration Installation Standard: MIS 3005-D The Heat Pump Standard (Design)1. On 21 May 2024 a list of grant categories and grant levels approved for the scheme was added, and on 8 May 2024 the list of standards was updated with the approved codes of practice as required by Regulation 4(1)(j)1.
| Date | Update recorded on the page |
|---|---|
| 21 July 2026 | Previous version of approved grant categories and values removed; current version to be used from this date |
| 9 June 2026 | Notice of standards and Summary of standards published |
| 28 May 2026 | Approved grant categories and values published for the scheme from 21 July 2026 |
| 5 May 2026 | Details of grant categories and values in the notice amended |
| 28 April 2025 | MCS 007 version 7 and HIES Code of Practice Version Q listed |
| 3 December 2024 | MIS 3005-D Issue 2 listed |
| 21 May 2024 | List of grant categories and grant levels added |
| 8 May 2024 | Standards list updated with approved codes of practice |
The page does not state the cash value of any grant category, and no figures for individual grant levels appear in the update history1. The amounts available under the scheme are set out elsewhere; the site's page on how much the Boiler Upgrade Scheme grant is covers that ground. The page also does not explain what prompted the 5 May 2026 amendment, and no reason for it has been reported1.
Why it matters for households
The notice is the document that fixes which grant categories exist and at what level, so an amendment to it is the mechanism by which the sums available for a heat pump or biomass installation can change. For a household weighing up a heat pump against an existing gas boiler, the practical effect runs through the installer's quotation: the grant is deducted from the price, so the level approved in the notice determines the net cost. The standards list matters in a different way. It sets which certification and design standards an installation must meet, and those requirements shape what work is done and how it is signed off. Because the page records the amendment without stating what changed, the specific effect on any household's figures is not set out in the update history1.
What happens next
The page states that the current version of the approved grant categories and values should be used from 21 July 2026, and the previous version was removed on that date1. The 21 July 2026 entry is the latest recorded on the page1.