It is estimated that some 6 million homes in the UK have had cavity wall insulation (CWI) fitted, many of which were free or subsidised. For many people CWI proved beneficial in keeping heat in and reducing energy bills, however for others the experience was not so good.
Problems varied from damp and mould on the walls to peeling plaster and damaged brickwork. If incorrectly installed insulation was to blame you may have a claim for compensation.