Source · Select Committees · Public Accounts Committee

Recommendation 28

28 Accepted

Available intelligence on risks and non-compliance was not escalated or consolidated effectively.

Conclusion
The National Audit Office reported that TrustMark only developed the analytical capabilities for identifying non-compliance trends in the latter half of 2024. Its funding model meant it did not have the free cashflow to develop these capabilities sooner.60 However, TrustMark told us it had been sharing the results of its audits with the Department in regular meetings since 2022, and started to identify the increased risk from 2023 into 2024, at which point it undertook more audits to better understand the level of risk.61 The Department believes that the Autumn and Winter of 2023–24 is also when the issues likely first became visible, after a ramp up of installations in the spring of 2023.62 UKAS and the Department also both told us that the intelligence that was available (for example data on installations, audit results and consumer complaints) was not being escalated or drawn together as it should have been to understand levels of 56 C&AG’s Report, paras 19 and 3.5 57 Qq 49, 52,55, 115, 116 58 C&AG’s Report, para 3.6 59 Q 89, 116, 117 60 C&AG’s Report, para 21 61 Qq 49, 52 62 Q 115 18 risk and non-compliance.63 Neither TrustMark nor DESNZ have been able to provide minutes of meetings which took place between 2022 and 2024, and the Department has written to us to say that it has no evidence that it was notified earlier than October 2024.
Government Response Summary
The government agreed with the Committee’s recommendation. TrustMark reached full operational delivery of the find-and-fix programme in late January 2026 and currently intend for the programme to complete by May 2027 in line with ECO4 closure timeframes.
Government Response Accepted
HM Government Accepted
The government agrees with the Committee’s recommendation. Recommendation implemented 2.2 Having completed a mobilisation phase, including recruitment of auditing capacity, TrustMark reached full operational delivery of the find-and-fix programme in late January 2026 and currently intend for the programme to complete by May 2027 in line with ECO4 closure timeframes. The department has seen a steady increase in the number of audits undertaken and the level of remediation being delivered. The department, TrustMark, Ofgem, certification bodies, guarantee providers and retrofit businesses are working to accelerate the rate of fixing non-compliances.