This is not, in fact, a tea house, but a Chinese food restaurant! They have a sizable GF menu and offer delivery, pickup, and dine in options.
Edit: I’ve ordered delivery twice now and haven’t gotten glutened. They have a cross-contamination statement on their website, which I suspect is just for legal reasons, but I was able to specify that I have coeliac and request separate packaging and allergy prep to reduce cc as much as possible and they were very accommodating. My takeout containers were even specifically marked as gf.
— Very
— Separate gluten-free menu
— Some
— Excellent