I have been using Flanders Heating & Air Conditioning for many years and have been very pleased with their service. I recently called to have my unit serviced and was treated courteously by a very knowledgeable person. The serviceman came out and arrived on time; he even called ahead. He was fast, efficient, and well versed in what to do. I have already recommended them and will continue to do so. It is hard to find a truly good company and I plan to keep using them.