Casa has installed three central A/C units for us (at two different houses), and we have been continually impressed with their professionalism, their service and their prices. There is a lot of competition in this market, and we feel as though we've locked onto a winner. Their follow-up was great, and they made sure that we were satisfied before the job was through. We first heard of Casa when they installed the HVAC system in a large office building that our employer was building, and were pleased to learn that they did residential work as well. We make it a point to "buy local," and Casa makes that an easy maxim to follow. Because of complicated changes in federal laws with respect to refrigerants, we had a range of choices with our newest system -- Casa made it easy, and didn't over-sell us with more features than we needed. They helped us with the rebate paperwork, and the tax credits were received as advertised. Casa = full service!