Canabella Spa in Scarbrough opens late, but you won't easily find all the services you need there.
Personally, I'm all for OG's opinion. Only a few Asian spas in Richmond Hill, Lavender and Shangri-la where you can get a good massage and millage after 9 PM every Saturday. Maybe I have to mention Amber @ Shangri-la because she's been on fire lately. The review board is filled with praise for Amber - young, pretty, excellent English, Asian Kardashian's figure, and provides body massages at a top-notch level. Also, she guarantees a thorough session, even accepting appointments after 10 PM. I can't say enough good things about Amber.
Of course, if you're into trigger points and Thai stretching, don't miss Kiki's massage skills, but most guys here only see Kiki for her impressive 36D bust size.