I need some advice. We moved into a new house just over a week ago. The building survey said that the tiling in both the first floor shower and loft-room shower needs to be re-grouted, and there was evidence of historic leaks below that had been painted over. Sure enough, 5 minutes into using the first floor shower, water started dripping through the kitchen ceiling below. We all started using the loft shower instead, which seemed fine, but yesterday we noticed a dark stain on the ceiling of the room below - so that is leaking too, but more slowly. I'm hoping both issues are tiling-related rather than plumbing-related, but I suppose that will need to be verified somehow.
Question is, do I phone a plumber or a tiler or a general builder? I have a couple of heating engineers coming this week to quote for another job, and they both say they do general plumbing work, including bathroom installations, so I will ask their advice, but will they be a relatively expensive option for fixing shower leaks?