I recently bought a house that is about 80 years old. The kitchen is in dire need of everything. I would like the kitchen's electrical brought up to code and rewired . The existing drywall has 1960's wallpaper applied directly to it (this was after I removed the top four layers). I had a contractor come out and speak with me about the remodel. He suggested that we just put drywall on top of the existing drywall. That just seems like a band-aid to me- No better than the people who stuck wallpaper on top of wallpaper time and again. Shouldn't the walls be removed and start from fresh, especially if it will be rewired. Will that make the electrician's job easier and bill lighter?