Written Question·Department for Energy Security and Net Zero·UIN 90549
Insulation: Housing
Tabled: 12 November 2025
Answered: 21 November 2025
Question
Lorraine Beavers
Labour — Blackpool North and Fleetwood
To ask the Secretary of State for Energy Security and Net Zero, whether his Department is taking steps to investigate incidents of incorrectly installed cavity wall insulation that was installed before 2021.
Answer
Martin McCluskeyCavity wall insulation (CWI) is one of the most cost-effective means of improving energy efficiency in people’s homes when installed in suitable homes and supported by appropriate installation standards and guarantees. However, the Government is aware tha...
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