This was toled 20 years ago and as you can see, it looks horrendous. I am compentent enough working around electric showers but never these type. O usually leave it to the plumber that works along with me however he's away on holiday for 4 weeks. I know the obvious answer would be, get another plumber but going to tackle this myself if it ain't too complicated. Is it a case of just screwing the face plate, tile then replace instaed of tiling around it and having it look a mess like in pic.