I have been using American Refrigeration Heating & Air Conditioning Co. for several years. In fact, I bought my heating and air system from them several years ago. As far as service goes, they have done a good job for me. They recently came out for the fall service work to get the furnace ready for winter. There was a discrepancy about my bill. I am pretty sure that I paid for a service contract, but they do not think so. I still have to work that out with them.