Ceiling leaks from inside the house start on the floor above: a tub or shower pan, a toilet seal, a radiator valve, a washer upstairs or the unit above in a two- or three-family house. Roof and ice dam leaks are a different problem, covered on the ice dam and roof leak page.
Safety first: wiring and weight
Wet drywall and plaster get heavy, and water pooling above a light fixture can reach the wiring. The response team shuts off power to the affected circuits and stays clear of bulging areas until they are drained.
- A bulge holding water is drained into a container through a small hole
- Light fixtures and fans in the wet area stay off until the electrician clears them
- Plaster that has pulled away from the lath is taken down under control



