I'm renovating an old house circa 1893, and I have a problem with blown plaster behind a skirting board.
I'd like to leave the skirting board undamaged as its an origin feature, but how can I repair the plaster behind it?
Is my only option to remove the whole skirting board and re-plaster? The rest of the plaster on the wall is fine so I'm hoping there's a way to avoid replacing the whole lot.
Thanks