Common spots
- Ceiling above shower
- Caulk and grout lines
- Exhaust fan area
- Window trim
- Vanity or plumbing wall
Details to gather
- How often it returns
- Fan use and vent path
- Plumbing leaks
- Condensation patterns
- Photos from safe distance
When to request help
- Growth spreads beyond small surface spots
- Drywall is soft or stained
- Musty odor persists
- Leak history exists
- Occupants are concerned