I'm renovating a room in my house to make it my bedroom, and the walls are pretty bad with holes, scrapes and tears where previous pictures, shelves etc. have been erected then taken down. I've started attending to them with polyfiller but I've got a feeling the end result is not going to be fantastic.
I'm wondering about getting a plasterer in to do a skim coat over the whole lot to give me a nice new, smooth surface to paint on. Can you do this over plasterboard (the current surface is the paper that you have on the outside of plasterboard panels)? And how big a job would it be for a professional, ie what ballpark area of cost would I be looking at?
It's an average-size double bedroom.