I purchased a Groupon for a heating and cooling unit cleaning from Freedom Heating & Cooling in Bessemer, Alabama. Mr. Garner was on time, courteous, and respectful of our home. He listened to my questions about a mysterious oily dust we have in our home, and even called two supervisors to take a look at the situation. They were very thorough, inserting cameras into our ductwork, and going into our attic. All three men wore coverings over their shoes, and they offered to vacuum when some insulation fell from the attic. The Groupon I purchased covered the inside and outside units. I appreciated their honesty when they explained that they would come back out in the spring, because the temperature had to be at a certain level for accurate readings. They assured me that they would take responsibility for arranging that appointment and will be bringing new filters for us. They take calls 24/7, and offer a maintenance savings plan. I was very impressed with all three gentlemen, and would wholeheartedly recommend Freedom & Cooling.