Our Carrier air conditioner wouldn't turn on. Initially we thought the problem might also be with the thermostat. It was so easy dealing with Comfort Masters Ltd. They responded promptly to my service request and accommodated an early morning appointment to fit within my schedule. They sent regular text message reminders to keep me informed. The technician Sohrab arrived on time, removed his shoes without being asked, and was very professional. He immediately diagnosed the problem and provided helpful tips on how to maintain the A/C unit and furnace. He replaced the faulty part and had the air conditioner working in no time at all. I highly recommend Comfort Masters Ltd. to others and will not hesitate to contact them again in the future. Thank you, Sohrab and the Office Team!