There is a shower in the bath attached to wall. There has been a leak causing quite a bit of damage to apartment below. which we now think must be coming through the grouting (plumber says no pipes leaking). We tried to repair to no avail. Think exist grouting needs removing and replacing and also sealant. It would appear to be about 2 tiles up the length and width of bath that is causing problem, (or maybe all tiling) but until seen.....so may be difficult to quote, so not sure of budget figure
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