That was just for the tub

They strip the old finish, then sand and treat the entire surface so it’s ready to accept the new finish. Similar process to using “tough as tile”—only I sanded/cleaned/treated the entire thing by hand and it me took days, they had power tools and were done in a few hours. For mine they used synthetic porcelain resin, there are probably other finish options. Can’t speak to the durability yet as it’s only been done for a week, but it looks brand new and feels higher quality than the tough as tile finish. You cannot use certain harsh cleaning products on the new finish, they gave me cleaning and care instructions. I did not want any of my tile touched, it’s vintage and wraps around the entire room. It would’ve been an entire bathroom renovation. So I went for this option. $774

Edit: it was done by a tub and tile company

This looks very similar to the bathtub I just had refinished in my home. In my case, I was the one who did the cover up job. I used the “tough as tile” refinishing kit. They likely uses something similar. It turns out to be much less tough than tile, and my cover up job was peeling after two years of heavy use. No idea how long it’s supposed to last but for the amount of work it took, I was disappointed. Refinishing a bath tub is very hard to do by yourself. It’s possible you could patch this spot with a “tough as tile” product but I would not recommend that. I paid a refinishing company to come out and redo my tub last week. It looks amazing and it comes with a 10 year warranty.