Intro: Damp patches look worrying, but the cause is often simple.
1. Check for leaks
Pipes behind the wall may be dripping.
2. Improve ventilation
Condensation can cause damp spots.
3. Check guttering
Overflowing gutters cause damp walls.
4. Look for rising damp
Moisture from the ground leaves a tide mark.
5. When to get a survey
If the cause isn’t obvious.
Summary: Most damp issues come from leaks, poor ventilation, or gutter problems.