I used to instruct for Canadian Flight Centre in Boundary Bay. That was three years ago. At the time, I thought it was a pretty good operation. The employer took good care of the instructors, students, and aircraft. The instructors did a good job. I don't know if that has changed or not. (Call 604-946-7744)
Another good school is Professional IFR in Boundary Bay. I attended the owners' IFR seminar and was highly impressed. I doubt you will go wrong with either of these.