AQS Heating & Air Conditioning Redlands, CA is a truly customer focused company that puts the client first. We achieve this by making a difference in our customers lives every day with outstanding service, educated on-time technicians and a courteous attentive office staff. We are confident that the combination of our professional team, state of the art equipment and the best warranties, will provide you with many years of comfort, reliability and peace of mind. Our promise is to provide the highest quality work in every application, whether residential, commercial, sales, service, installation, indoor air quality, or new construction.