There are several reasons for water to come through a ceiling and not all of them are connected with your plumbing system.
- If water is pouring through your ceiling during a heavy rain storm the problem is generally with either your roof or a blocked gutter.
- Ice dams (water freezing and getting under the roof) during winter can cause water spotting and leaks once the ice starts to melt.
- Snow can blow in through a ridge vent during a heavy blowing snow storm. Once the snow melts it will cause water spots and leaks
- Water coming through a ceiling after a shower can be the result of a plumbing leak, but more frequently is the result of missing caulking - either in the tile or at the area where the tile meets the shower. Check the caulking carefully for open spaces and areas before calling a contractor.