• Winter IAQ and DeHart
    Is the air in your home affecting your health?
    Winter means more time inside — learn how to increase your indoor air quality.
  • Geothermal Energy and DeHart
    Sustainable home heat is right under your feet
    It may be cold up above ground, but you can use the heat underground to keep your home warm, for less.
  • Heating and Furnace Repair
    Ready to say “goodbye” to your failing, frustrating furnace?
    Even if your heating system worked last year, replacing your furnace or boiler has many benefits.
  • Upgrading your Fireplace
    Tired of chopping wood, but don’t want to give up your fireplace?
    Convert your log fireplace to gas for on-demand warmth.

DeHart Air Conditioning

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.

Achieve greater comfort and efficiency.

Talk to the HVAC experts at DeHart today!


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What our customers are saying

We wanted to say 'thank you' for your great service! The new geothermal unit is working well and in fact is working better than our original ever did. We cannot express our appreciation enough. Thank you also for the extra time spent in completing paperwork for our OEC Rebate.

David and Kami Ratcliff

Read our blog

worker performing maintenance on a heating system
Make the right decision when debating whether to repair or replace your home heating with these... Read more