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Full Service Heating & Air - Residential & Commercial

Mullin is proud to offer a wide range of HVAC services, performed by professionally-trained and certified technicians and designed to meet every customers home comfort needs exactly.

Our Repair professionals know what it takes to beat the heat in Oklahoma. With years of experience and top-notch training you can be sure that Mullin knows how to provide the AC Service that you deserve. We hold a Better Business Bureau A+ Accredited Business Rating and have been in business since 1974. Let us show you why Mullin makes all the difference.


Welcome to our website! As we have the ability to list several items on our website (our selection changes all of the time), it is not feasible for a company our size to record and playback the descriptions on every item on our website. However, if you are an American with a disability we are here to help you. Please call our disability services phone line at 918.258.6636 during regular business hours and one of our kind and friendly personal shoppers will help you navigate through our website, help conduct advanced searches, help you choose the item you are looking for with the specifications you are seeking, read you the specifications of any item and consult with you about the products themselves. There is no charge for the help of this personal shopper for any American with a disability. Finally, your personal shopper will explain our Privacy Policy and Terms of Service, and help you place an order if you so desire.