Comment by ars

Possibly. It's NY it's way more expensive than anywhere else.

That's a delta mixer valve which is $100, plus $100 for the trim. A plumber would charge double for that, so $400 for parts. Usually labor is about the same as parts so I would expect that job to cost $800.

Maybe there was a lot of labor involved, or maybe he's embellishing the story a bit (or leaving out some of the work involved).

All the comments in the video have the same question as you.