The whole staff over at A1 Heating St. Albert are wonderful. I usually have them come out once a year around November or December to check my furnace and make sure it's working properly and also to clean the flame sensor. I live pretty close to them so, I never have any problems making an appointment. If I ever do have any trouble with the furnace, they try to get it fixed for me the same day. The customer service is great. If I have any questions they always answer them. I would highly recommend this company.