The back wall, ceiling, roof joist and all was replaced on my second bedroom. Plus a larger window was added. He brought it to my attention the existing window would not meet egress, saving me an expensive window replacement down the road. The old roof line was improperly done, and he brought this to my attention, suggested a correction for it, then did it. Everything was done in a very polite, professional, clean manner. He is very tidy. I am very happy with the quality of his work.