This was my first time to use A1 Heating St. Albert Ltd. I had them install a new heater and air conditioning unit in my home. Their employees showed up on time, and were very friendly and polite. It is my opinion that they seemed very knowledgeable about what they were doing, but I must note that the work did not pass inspection the first time around. Their technicians came back out within a day, and did whatever it was they had to do, and it all passed inspection on the second try. The crew from A1 Heating St. Albert Ltd. was very good about cleaning up the job site behind themselves, and hauling away the old units.