About a month ago I had my kitchen walls and ceiling reskimmed. It hadn't been touched (even re-emulsioned) since I moved in 34 years ago (yeah, I know) so there were various big cracks in the emulsioned walls, and where the walls meet the ceiling the plaster was crumbling (which made me wonder whether the original plasterer had used tape there). Anyway, I scraped out the loose plaster between walls and ceiling and scraped off any flaking emulsion paint on the walls, although most of it was not flaking so I left it on. Anyway, the plasterer came and did what looks like a good job. The thing is, I've been reading online forums about emulsioning over reskims and in passing I've come across a couple of posts where it says that you should remove emulsion paint before reskimming. The plasterer came to give me an estimate but he didn't tell me I needed to scrape off all the emulsion paint first. Obviously, it's too late now but I just wondered: Is that correct? Nothing I can do at this stage but it's a bit worrying.