hello there all. I'm after so useful advice. I have a stairwell wall to plaster but the exsisting plaster has blown in places. And I'm doing the work for family. Which way would you go? As I'm worried once I start taking some of the blown plaster of it's going to get bigger and bigger.. would it be worth a go to do than and than patch up with hardwall.. than re skim complete wall or . Remove whole lot back to bare brick than float and set? I am a little worried as havent done a lot of float and set as going up the stairs will need to set up platform and worried it will go of on me .. please help.. Harry.