The Flow Detect notebook
Working back from a ceiling stain
Why the room above and the timing of water use matter.
The stain may be an exit point
Water can follow structural members or services before marking a ceiling. The source can be away from the visible damage.
Access above can be essential
If another flat is involved, arrange authorised access through the appropriate person. A visit confined to the damaged ceiling may leave the source untested.
Deal with immediate danger first
Keep clear of a sagging ceiling and water near electrical equipment. Obtain appropriate urgent help rather than touching a wet fitting or opening the ceiling yourself.
Put the information into context
This guide explains common investigation principles. Your property, the available access and the actual test findings determine the right next step. It is not a diagnosis of an unseen system.