I have been using Southwest Air Conditioning and Heating for over ten years now, and I recently had them out to troubleshoot my air conditioning system. They showed me what was wrong and always kept me in the loop as they diagnosed the issue. He provided me with options on what to do to fix it, and once I chose, replaced the parts that needed to be updated. Their workers are always friendly, personable, and always keep you informed, which is why I plan on continuing to use them.