Cavity Wall Insulation in the UK: Methods, Costs, Grants, and Long-Term Savings
Introduction to Cavity Wall InsulationCavity wall insulation is a key upgrade for many homes across the UK, offering significant improvements in both energy efficiency and household comfort. Since a large proportion of British housing stock, particularly properties built after the 1920s, features cavity walls—two layers of brickwork with a gap (or ‘cavity’) between them—understanding this…