Window condensation
Track indoor humidity, ventilation and whether condensation is surface-only or inside glazing units.
What to do first
- Check whether the issue is isolated or affects the whole home.
- Take photos and note any recent changes, work or weather.
- Stop DIY if the task involves regulated work, hidden services, height or a safety risk.
What could be behind it
- Condensation and poor ventilation
- Plumbing/roof leak
- Moisture entering through building fabric
These are common possibilities, not a diagnosis of your specific home.
When to stop doing it yourself
Stop if you are unsure of the cause, cannot isolate the system safely, need to open fixed electrical/gas equipment, work at height, disturb hidden building fabric, or the problem is getting worse.
QUOTE CHECK
Typical quote components
- Assessment
- Ventilation
- Window repair
PARTS / TOOLS
Possible items involved
- Hygrometer
- Window seal
How to describe it to a professional
There is heavy condensation on the windows every day.
NEXT STEP
Move from symptom to action.
Compare the right service, understand the quote and keep the completed work in My Home.