What the sign can tell us
A problem linked to shower use calls for a controlled look at supply, waste and wet surfaces. The delay before a mark appears can help frame the checks.
Useful details to record
Note how long the shower ran and when the affected area first changed.
Include your postcode, the affected place and any earlier investigation. A concise history helps distinguish a repeating pattern from a one-off observation.
Where an investigation may begin
Follow what happens during a shower.
Shower leak detectionKeep the next step proportionate
A symptom alone does not identify a faulty pipe. Suitable investigation connects the observation with a cause before access or repair is proposed. If findings point outside plumbing, the recommendation should reflect that.
If water is actively escaping
For immediate danger, keep away from unsafe areas and use the appropriate emergency or urgent assistance service. Website enquiries do not dispatch emergency help or guarantee an attendance time.
Read the active-water guidance