I've been to a few around the area, but still looking for the one to tick all boxes; great massage, good he and preferably a nice looking masseuse.
Anywho the thai massage place in south Harrow gives by far the best massage, but no HE... Well at least I haven't been offered after a couple visits. You're better off going to a place near South Ruislip station called Herbal Bliss (not the one in Ruislip manor). Decent massage (40/hr), good he (20), just not the most attractive.
Other places worth checking out if ya have some cash to spare... Rami in Wembley, or europhia massage Northolt...both between 80/100hr.
Let me know if ya find any other hidden gems.