Sorry if this is the wrong forum but seemed most relevant to building.
Happily starting to core away for our cooker hood and all the plaster broke off one edge revealing an old hole 140mm of to one side that had been rendered over at each end. Problem is we've already bought, built and fitted all the rest of the kitchen and there's no space left to move anything down. There's at most about 25mm to move the extractor over, the chimney would need to move over about 75mm to fit the ducting behind it. The hole can't really go any higher because of all the wiring embedded into the plaster, besides for it to go high enough to be clear of the old hole you'd never get the drill in because of the ceiling.
The easiest thing I can think of is to cut away diagonally from inside the chimneys footprint across into the old hole about halfway in, or cut an extra 75mm out of the side going straight through, but that would leave a big oval shaped hole on a supporting wall, is that acceptable? And in the second case probably be impossible to keep the core bit straight when only half of it is engaged.
Any other ideas?
Happily starting to core away for our cooker hood and all the plaster broke off one edge revealing an old hole 140mm of to one side that had been rendered over at each end. Problem is we've already bought, built and fitted all the rest of the kitchen and there's no space left to move anything down. There's at most about 25mm to move the extractor over, the chimney would need to move over about 75mm to fit the ducting behind it. The hole can't really go any higher because of all the wiring embedded into the plaster, besides for it to go high enough to be clear of the old hole you'd never get the drill in because of the ceiling.
The easiest thing I can think of is to cut away diagonally from inside the chimneys footprint across into the old hole about halfway in, or cut an extra 75mm out of the side going straight through, but that would leave a big oval shaped hole on a supporting wall, is that acceptable? And in the second case probably be impossible to keep the core bit straight when only half of it is engaged.
Any other ideas?