Hi all, I'm fitting a small utility area at the back of my garage with some worktop and cupboards on the wall. Following building work the back wall has ended up a combination of brick, breeze blocks and some smaller areas of cement infill, so I'm looking at plastering it. Part of the wall backs onto the kitchen and part is single skin external wall. What type of plaster finish would you suggest? Other thing is there are a couple of water pipes and electrical cables running down the surface of the wall for the washing machine, what's the easiest thing to do about these when I plaster?