Written Question·Department for Energy Security and Net Zero·UIN 22467

Cavity Insulation Guarantee Agency and Energy Company Obligation: Wales

Tabled: 7 January 2025

Answered: 13 January 2025

Named Day

Question

Ann Davies

To ask the Secretary of State for Energy Security and Net Zero, what estimate he has made of the number of properties in Wales waiting for remedial work as a result of work undertaken through the (a) ECO4 scheme and (b) Cavity Insulation Guarantee Agency.

Answer

Miatta Fahnbulleh

All insulation under ECO4 must be installed by a TrustMark-registered installer, and covered by a TrustMark approved 25 year guarantee. The Government has previously published guidance for consumers who suspect that they may have faulty cavity wall insula...

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