Insulation: Housing
The question
To ask the Secretary of State for Energy Security and Net Zero, with reference to the Department for Energy Security and Net Zero's consultation entitled Improving the energy performance of privately rented homes: 2025 update, published on 7 February 2025, whether she has made an assessment of the suitability of pre Second World War housing stock for (a) cavity wall insulation and (b) external wall insulation.
Answered by Miatta Fahnbulleh
Cavity Wall Insulation and External Wall Insulation when installed correctly is a cost-effective means of improving energy efficiency in homes. All work carried out under current Government energy efficiency schemes, must be installed by a retrofit professional who is certified to Publicly Available Specification (PAS) 2030, with work carried out in accordance with PAS 2035. Installers must also be registered with TrustMark and required to provide a TrustMark approved 25-year insurance backed guarantee. This ensures the highest quality installations.
Government does not specify which types of insulation should be installed in any particular property, only that the installations should be carried out by TrustMark registered installers in accordance with the relevant standards and consumer protection requirements.
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