Follow changes over time
Rainfall, ventilation, heating and water use can each affect a damp patch. A simple diary helps compare those possibilities.
Read surfaces carefully
Moisture readings depend on the material and may reflect water left from an earlier event. A high reading is not a diagnosis on its own.
Check the suspected system
Plumbing evidence should support a pipe repair. If the findings point to a building defect or another source, a different specialist may be needed.
Explore the relevant service
General information for planning an investigation. The property, instruction and findings determine the appropriate work.