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Select Committee · Public Accounts Committee

Faulty energy efficiency installations

Status: Open Opened: 10 Jul 2025 19 recommendations 20 conclusions 1 report

The Energy Company Obligation 4 (ECO4) and the Great British Insulation Scheme (GBIS), both funded via energy consumers’ bills, are government schemes for the installation of energy-efficiency improvements in people’s homes, such as insulation. Not-for-profit quality assurance company TrustMark identified issues with both schemes, with government announcing in January 2025 issues including insufficient ventilation, missing …

Clear

Reports

1 report
Title HC No. Published Items Response
62nd Report - Faulty energy efficiency installations HC 1229 23 Jan 2026 39 Responded

Recommendations & Conclusions

1 item
26 Conclusion 62nd Report - Faulty energy efficiency … Acknowledged

Future retrofit market size and government's Warm Homes Plan details remain unclear.

It is not clear the future retrofit market will be big enough to sustain businesses to meet the level of remediation required. Since we took evidence in November 2025, the government announced that it would end ECO, with no levies on bills from April 2026. It said it would continue …

Government response. The government announced it would end ECO, with no levies on consumer bills from April 2026, but that it would continue to invest in tackling fuel poverty through its Warm Homes Plan; however, it had not yet formally confirmed whether …
HM Treasury

Oral evidence sessions

1 session
Date Witnesses
13 Nov 2025 Clive Maxwell CB CBE · Department for Energy Security and Net Zero, Deborah Chittenden · Department for Energy Security and Net Zero, Jeremy Pocklington CB · Ministry of Defence, Jonathan Brearley · Department for Energy Security and Net Zero, Jonathan Brearley · Ofgem, Kiera Schoenemann · Ofgem, Matt Gantley · United Kingdom Accreditation Service (UKAS), Simon Ayers MBE · TrustMark View ↗

Correspondence

6 letters
DateDirectionTitle
21 May 2026 From cttee Letter to the Permanent Secretary at the Department for Energy Security and Net…
23 Feb 2026 To cttee Letter from the Interim Permanent Secretary at the Department for Energy Securi…
12 Jan 2026 To cttee Letter from the Chief Executive Officer of the Installation Assurance Authority…
8 Dec 2025 To cttee Letter from the Chief Executive of the UK Accreditation Service relating to the…
8 Dec 2025 To cttee Letter from the Interim Permanent Secretary at the Department for Energy Securi…
1 Dec 2025 To cttee Letter from the Chief Operating Officer at TrustMark relating to the Committee’…