Ceiling stains usually come from an upstairs bathroom, a roof leak or ice dams. A sagging ceiling holds water and can drop without warning.
Safety first
If the ceiling is bulging, keep people out of the room, put a bucket underneath and turn off power to lights in that area. Do not stand directly under it.
How it gets fixed
The crew finds the source, drains the pocket, removes wet insulation, dries the joist bay and then patches or replaces the drywall and repaints.
Plan beyond the visible stain
A stain identifies an affected surface but does not establish the full repair scope. Tell the assessor when it appeared, whether it has changed and whether there was water in the room above. Ask which surrounding materials need inspection.
Drying and rebuilding the ceiling
Discuss whether affected ceiling board, insulation or adjacent finishes will be dried or removed. Request an explanation of the decision and what checks will be completed before replacement materials, paint or texture are applied.
Keep source repair separate
A roofer, plumber or other specialist may be needed to correct the original cause. This page concerns restoration of the resulting ceiling damage. Confirm that source repair and interior restoration are both accounted for in the plan.
What to do in the first hour
- Stop the water. Close the main shutoff valve or the fixture valve.
- Kill power to wet areas at the breaker, if you can reach it without standing in water.
- Move valuables up. Photos, electronics and documents off the floor.
- Photograph everything before anything is moved, for your insurance claim.
- Call your insurer to open a claim and note the claim number.
- Call a restoration crew so extraction starts within hours, not days.
Frequently asked questions
Can a water-stained ceiling be painted over?
Only after the source is fixed and the drywall is confirmed dry. Use a stain-blocking primer first.
What causes ice dams?
Heat escaping into the attic melts roof snow, which refreezes at the cold eaves and backs water under shingles.