We have used Southwest Air Conditioning and Heating ever since we had our geothermal air conditioning system installed. They are very accommodating people, and they are here either the same day that we call them, or the next day. That is a very good thing since we live 60 miles away. They are very thoughtful people too, and they think about the cost to their customers. If they have two service calls in our area, they will split the travel cost between us, rather than charging us both the full amount. They are friendly, professional people, and they provide very good service!