I have a patio wall made of cinder block covered with plaster and painted over (a couple of years ago). I don't think the painter used the right paint as we now have bubbling of the plaster and in several areas plaster has fallen off the wall. Is there a way to patch these spots or do I need to redo the entire wall? Also is it the paint the guy used? (In case I redo the whole wall and want to then repaint).
Thanks