Hello Matt, I personally recommend to remove the tiles that are buckling of the walls and check what the problem is, as to my experience there should be wall penetrating through the tiles due to grout on the tiles have gone and you did not take notice of this or it could be the water is coming in from the exterior wall. In case of any problem please come back. Thank you. Nish Maroo
make sure you use the right adhesive when tileing in bathroom shower proof/ and water resistant adhesive ...
Matt, Also, along with the comment from Nigel, check the state of the plasterboard, wall behind tiles that it is not starting to break up from water getting in behind tiles, etc. Bill Pipe Dreams Plumbing Services, Bournemouth, Dorset
Nick shares his story of finding local tradespeople in his new area.
