We have been using Southwest Air Conditioning and Heating for 11 years! When we first built our house they installed the air conditioning unit. They are personable they show up on time and I never have had any worries about them coming into my home. I appreciate that they come when they say and I do not have to wait unless they have an emergency of some sort then they always call me. Their window of time is within two hours and not the standard four hours, I like that because I have things to do! When you yourself have an emergency when you are on the maintenance program you are given priority and the maintenance contract is reasonable and does save you a bit in the long run. I have recommended this company many times and will continue to do so, they have great customer service and great professional people working there.