Hi could anyone advise whether filling in faint cracks on new plaster should be something the renderer should rectify, or is it considered to be part of the decorator's job when painting? I had new rendering on the side wall of my house done in April. I've just got round to painting it but when I put the mist coat on, the moisture reveals very faint cracking all over with a vertical and horizontal pattern. When I phoned the contractor he said mix some cement with water to a paste and apply by hand before painting. My gut tells me the plasterer should do that ie produce rendering to a paintable finish, but he says it is part of the decorator's job. Any help much appteciated.