Had something similar, after regrouting ended up dismantling the shower enclosure and reinstalling, which did fix the leak.
Without a doubt mine was leaking from the sides of the enclosure. Stripping it all out and redoing cured it. Fortunately my grand daughters boyfriend is a plumber, sorry gas heating engineer.
Nope, by that very definition I find a lot of them to be a jack of all and masters of none. Really hard to be a qualified plumber, tiler, plasterer and any other job that needs to be done in a bathroom all in the one chap, though a lot of these fitting companies use the same bods for it all.bathroom fitting company.
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