I called their services after googling them and saw how many positive remarks they have on their feedbacks. True enough I wasn't disappointed. Our heater wasn't working that day. I called them the same day and they responded to my call immediately. They are very professional and courteous. They fixed our unit without any problem. In pertains to the pricing, they do tell you upfront how much diagnosing will costs so you're prepared and they are within fair price. I would totally recommend this company. Thank you.