This week, one of our teams attended a property after the homeowner got in touch with concerns about ongoing damp, mould and a home that never seemed to feel warm, even with the heating on. Following a close inspection, we discovered that the cavity wall insulation had been installed incorrectly and rubble was present across all elevations, approximately 700mm above damp proof course level. This meant the cavity was no longer performing as it should and the property was left vulnerable to poor thermal performance and moisture-related issues.

In cases like this, the problems inside the wall are often hidden until the signs begin to show inside the home. Damp patches, mould, condensation and high energy bills can all point to deeper issues within the cavity. For this property, the correct solution is a full cavity wall insulation extraction along with rubble clearance to restore the cavity to its original condition. It is a strong reminder that many homeowners have no idea what is really sitting within their walls, and when insulation is poorly installed or compromised, the impact can be costly in terms of comfort, efficiency and long-term repair work.