Tell me about it! I've got a plumber booked in to fit all new pipes and rads (was microbore, hate it) in first week of August, so kind of on a deadline to get the last 3 bedrooms and hallway finished by then. In those rooms it's just mist coating the ceilings, then painting ceilings and walls ready for the plumber (didn't want to be removing radiators later if I can avoid it), and gloss on the woodwork. Luckily the living room is the only room where the skirting needed replacing. Seems like a 5.5 would make the right size hole in the brick, but I'd need it to be 6mm if I'm going to get the plug through the wood Ah well, what's the worst that can happen!