During my project, we discovered there was not enough space to remove the old water heater through the front door of my furnace room. So the plumbers also had to remove the back wall of the room from my office on the other side. Not only did they take it apart to preserve the tongue and groove panels, but they put it back up with no issues. The wall looks as good as new and the new water heater is in place. Really appreciate the excellent service and skill of the plumbing duo!