questionText: To ask the Secretary of State for Energy Security and Net Zero, what estimate he has made of the cost of remedial work due to be carried out in properties in Wales as a result of work undertaken through the (a) ECO4 scheme and (b) Cavity Insulation Guaran
answerText: Remediation costs can differ significantly from one property to another. 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 guidan...
heading: Cavity Insulation Guarantee Agency and Energy Company Obligation: Wales