An elderly neighbour of mine has recently had a water leak and the wallpaper in the lounge has come down in one area. This is an old terraced house with the original plaster probably about 100 years old. the plaster is in very poor condition, sounds hollow when you tap it and is crumbling in places. I think if any repairs were attempted it would quickly turn into a full re plaster. My question is what can I do to try and stableise the plaster so that I can re paper to make it presentable.
thanks
thanks