I have had a service contract with Comfort First Heating and Cooling ever since we first purchased our home. They check up on my unit about 2 times a year and make sure that everything is in great condition for us. They do some very efficient work and I really can't complain about anything they do because of the high quality of service they provide us. They are also available for any emergency services we may need, we just give them a call and they come over to quickly diagnose the issues. I would highly recommend their services to anyone.