By Micken Patel, CSRT & PCA(QT) · Updated July 2026 · 8 min read Quick answer Damp in a UK house is almost always caused by one of three things: condensation (the most common, affecting around 3% of English homes), penetrating damp from a building defect letting rain in, or rising damp from a failed … Continue reading 7 Causes of Dampness in a House (UK)