You've probably heard about solar energy, but did you know there's another alternative energy source right under your feet? Free UV light air purifiers, Low payment options for new systems, extended tax credits and more. Discover even more ways to save on your heating and cooling upgrades.

Serving the heating, cooling and overall home comfort needs of our friends and neighbors here in Duncan and Chickasha has been a family affair for four generations.DeHart has got your needs covered - from air conditioning repair and installation, to designing and installing a geothermal system for energy savings, we are the local experts.

We can even help you settle the debate over central air vs mini split, and which will be better for your home or business! Stay more comfortable in your Oklahoma home or commercial property without breaking the bank on your monthly energy bills - call DeHart for all your HVAC repair needs. We install energy saving geothermal systems while helping homeowners take advantage of federal tax credits.

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Services

About Us Report

Knowing who you can trust your comfort to can be a tough decision. Fortunately, if your home or business needs air conditioning, heating, or indoor air quality services, the local experts at DeHart Air Conditioning are just a phone call away. DeHart was founded in 1920 in Chickasha, OK, by Ed DeHart.

Our Team Report

As a family-owned HVAC business spanning four generations, we take pride in providing high-quality HVAC service, duct solutions, and indoor air quality solutions to homeowners and businesses near Chickasha and Duncan, Oklahoma. We employ skilled and experienced technicians, as well as a friendly and professional office staff, meaning you can always expect a great experience with us.

Specials Report

At DeHart Air Conditioning, we strive to make HVAC upgrades even more affordable for homeowners near Chickasha and Duncan, Oklahoma. Because we work primarily with high-quality heating and cooling equipment from Lennox, we are able to offer our customers special discounts directly from Lennox.

Financing & Rebates Report

Getting exactly what you need to be comfortable is important, and we make it easy with available rebates and various financing options. Learn more about what you can take advantage of to make your new HVAC system even more affordable. If you're installing a geothermal heat pump system, remember that the federal tax credit is back.

Contact Report

Whether you're in need of information on pricing, have questions about our many products or air conditioning, heating, ductwork, indoor air quality, and commercial HVAC services, or simply want to provide suggestions or feedback that can help us serve you better, we'd love to hear from you. If your request is urgent, the best way to reach us right away is to give us a call at 405-224-0184.

Reviews (9)

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Marco Polo

Jun 27, 2021

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My AC had problems on two separate occasions within the same week. Neither were related to the other. DeHeart was quick in ariving at my location, and in both times were able to fix the issues.
Because of their quick response and diagnosis I give them 5 stars.

Laura Gookin

Dec 14, 2020

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Positive: Professionalism, Punctuality, Responsiveness
Sean did a great job fixing our gas fireplace ignitor. He was on time, professional, knowledgeable and had a great attitude. We signed up for their HVAC maintenance program as well. Thank you, Sean!

Omari Gray

Jul 26, 2020

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Sheri Rice, The branch manager was very professional, promptly came to our house, gave us an estimate for a new unit that was in our budget, the workers that came to install unit were friendly, prompt, and answered all questions we had! Was a great experience would recommend this business!
Thanks Sheri

MaryBeth Shreffler

Jun 12, 2020

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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
We called Dehart and they were out here within 20 mins which is impressive because it was an hour before they close. They diagnosed and fixed the AC unit within 40 mins and service fee, part and installation was extremely reasonable. Will be using again!!!!
Services: HVAC repair, AC repair

Nora Mercer

Oct 25, 2019

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Had two Lennox air conditioners installed recently. Was very pleased with the professionalism of the team. Very pleased with my units. They were very knowledgeable on any questions I had. Cleaned up after they were finished. If I have any issues they are very quick to get it resolved.

Pamela Henson

Aug 15, 2019

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We were very satisfied with everything done for us. Everyone we working on our home was friendly and knowledgeable about their job.
I would recommend DeHart to my family and friends.

T. Traughber

Jul 25, 2019

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We recently had our three units changed by D Hart. They did an excellent job. The office was great to work with. The technicians were knowledgeable and did a great job on the installation. Everything was a breeze from start to finish. Great company. I highly recommend them. Terry

Donna Cope

Jul 06, 2019

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I had been searching for a solution to getting some air conditioning in our laundry room/office/hobby room. The room has no windows, so I was discouraged after looking for years. Early one Monday afternoon I stopped by DeHart's in Duncan and talked to Sheri. She came out later that afternoon and gave me an estimate. She had the electricians from Smith Dressler come by Thursday morning and make the necessary updates to our electrical systems. The DeHart guys came mid-Thursday afternoon and finished up Friday morning. The entire experience was just wonderful! All of the technicians were very friendly

Nicole Punneo

Jul 04, 2019

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We have done business with DeHart Air Conditioning since they started in Duncan. Everyone is friendly and they do a great job! I also have them do the bi-annual maintenance at some of our properties and they call and schedule with me which helps me remember. We love doing business with DeHart!

Dehart Air Conditioning