Hi, I'm looking for some advice concerning the chimney breast and wall in my house. The previous occupiers finished the wall with what looks like sawdust mixed in with the paint. The result looks terrible and I want rid of it as i'm redecorating the room anyway. Is it possible to have the walls re-plastered to cover this? I've tried scraping and sanding, but theres so much I doubt i'll ever get it good that way. Any advice would be appreciated thanks!