questionText: 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.
answerText: 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...
heading: Cavity Insulation Guarantee Agency and Energy Company Obligation: Wales