• Heating Filter, Replace, Heating Repair, Heating Maintenance
    Achieve Greater Home Comfort and Energy Savings
    Get preventive maintenance for your heating system
  • Fall Indoor Air Quality, HVAC, DeHart AirConditioning
    Indoor Air Quality & Your Family
    IAQ solutions, including air filtration, air purification, and humidity control.
  • Winter, Lennox Special, DeHart 2018
    Bundle and Save with Lennox this Holiday Season!
    Save up to 20% on qualifying systems.

DeHart Air Conditioning

We are a fourth-generation family-owned HVAC company serving homeowners and commercial property owners in the Chickasha and Duncan, OK region. Whether you need to design a custom HVAC system, upgrade your heating and cooling equipment, or improve indoor air quality, we’re here to help.

Achieve greater comfort and efficiency.

Talk to our HVAC experts today!

405-224-0184

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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
Take advantage of the savings when you bundle with Lennox this Holiday Season!

Read our blog

fall home performance checklist, dehart
Preparing your home for winter is more than smart for your energy bill, it can improve home comfort... Read more