We began using Specialty Heating a number of years ago. They repaired our heating system after repeated attempts by the company that installed it failed to diagnosis or solve the problem. Their work has been outstanding. We have had them service our system twice a year ever since. They are always professional and do excellent work. And, we will continue to do so as long as we own our home. My wife really appreciates that they call when they are enroute to the home and email a picture of the service technician so identification is simple.