To ask the Secretary of State for Energy Security and Net Zero, what steps she is taking with Cabinet colleagues to reduce the incidence of circulatory and respiratory diseases as a result of poor insulation in (a) Preston and (b) Lancashire.

Insulation is the most common and cost-effective means of improving energy efficiency in people’s homes.

Installers under current government schemes must be registered with TrustMark and comply with Publicly Available Specification 2035, which adopts a whole house approach to ensure appropriate ventilation when retrofit work is being carried out. This minimises the risks of unintended consequences such as mould and damp. Installers must also be PAS 2030 certified.

Should a consumer and a TrustMark registered business have a dispute about the installation which cannot be resolved through their own resolution mechanism then TrustMark provides a further dispute resolution process.