Commons Sense

House of Commons · Written Ministerial Statement

Solid wall insulation under ECO4 and GBIS

17 July 2025 · Department for Energy Security and Net Zero

Proposed by Miatta Fahnbulleh Lab Co-op Peckham

EnergyEnvironment

Summarised by AI from the official record, so it can contain mistakes.

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At a glance

Key points

  • The government is addressing non-compliance issues with industry standards in the installation of solid wall insulation under the ECO4 and GBIS schemes.
  • The government is writing to MPs to encourage consumer participation in audits related to these schemes.
  • Root and branch reforms on the consumer protection system are planned as part of the Warm Homes Plan in Autumn.

Issue summary

The statement addresses widespread non-compliance with industry standards in the installation of solid wall insulation under the ECO4 and GBIS schemes.

Action requested

The government is writing to MPs requesting them to encourage consumers contacted for audits to participate. Additionally, root and branch reforms on the consumer protection system are being brought forward as part of the Warm Homes Plan in Autumn, with an expert panel convened to advise on these reforms.

Key facts

  • Government requested Ofgem to oversee expanded checks.
  • Statistically representative audit programme due to complete later this Summer.
  • Preliminary evidence suggests a majority of installations are not up to standard.
  • Auditors face difficulty in obtaining consent from homeowners for inspections.
  • Ofgem has contacted all 60,000 consumers with solid wall insulation under both schemes since January.
  • 90% of poor-quality installations identified by Trustmark have been remediated.
  • Consumers can contact [email protected] or call 0808 169 444 for advice and support.
  • Compliance levels are higher in other measure types under ECO4 and GBIS.
  • Local Authority Delivery, Social Housing Decarbonisation Fund, and Home Upgrade Grant schemes have not shown widespread issues.
  • An expert panel will advise on reforms to the retrofit system and consumer protection landscape.
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