I have a damp patch on my ceiling where a pipe burst and now sags and is stained. Do you need to replaster the whole ceiling or can it be patched ?
What we do for this is cut out the damaged plasterboard to the nearest ceiling joists and re-plasterboard. Yes we can patch up to the existing plastered ceiling, but you always get a better finish when the whole ceiling is plastered and in my experience if the ceiling is not too big it does not take that much longer to skim the whole ceiling, the reason for this is plaster has its own setting time so areas large or small you still have to wait the same amount of time, so its worth thinking about.
