Discover how much external wall insulation costs in the UK, with average prices ranging from £90 to £140 per square metre. In this episode, we break down estimated costs for terraced, semi-detached, and detached homes, along with key factors that affect pricing such as property condition, finishes, and insulation systems. Learn what’s included in professional installation—from insulating boards to reinforced mesh—and why external wall insulation is a smart long-term investment for reducing energ