Part Three…The tear Out.
The tear out can be a very simple process and of course it can be your worst nightmare. I had decided early on that I would build the new vanity and it’s counter top before tear out. The idea is to leave the space in a working condition until some of the woodwork was ready to go back. In custom fabrication, it’s what you don’t see that can get you in trouble. 
The Luck was with me. The only surprise was a little water damage behind the unit that since had dried. The moisture had produced some mold. There was also some evidence of termite damage but not active.
I cut the wallboard out from behind the old vanity, removed some foam insulation and a couple of furring strips. The block wall behind was clean and in good shape.
The pipes and valves were new but the evidence of the old abandoned pipes were still there. Generally if they are not in the way, I just make sure they are sealed and intact and just cover them back.
The old recessed lites and the mirrored medicine cabinet came out without a hitch.
Now it’s time to clean up and start installing the new wood work.
