Hello screwfix forum users. my house is coated in a smooth type of pebble dash and has been painted in an off-white. From what I can see this was done more than 10 years ago. It needs redoing and I wanted to know: 1). Could I actually do it myself as I have painted interiors before And have a basic working knowledge of painting? 2). Do I need to wash/prep the house first? 3). typical cost per m/2 of someone else to do it? Just looking to take advantage of this forthcoming great weather they keep talking about Many thanks in advance.