What you can do
- Keep clear of bulging plaster, falling material or water near a light fitting.
- Contact the building manager or upstairs neighbour. Isolate a known source only from a safe position.
- Photograph from a safe distance and record when the patch appeared and whether it followed rain or water use.
How to tell whether it helped
Stopping the leak does not instantly dry the ceiling. Check moisture and the condition of its layers before decorating.
When to stop
Rapid growth, falling plaster or wet electrical equipment needs urgent attention. For immediate danger or fire, call 112 rather than waiting for a form reply.
How NAPREMO can help
After the incident is controlled, NAPREMO can assess repairs and whether moisture measurements are needed.