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Over 39 Years of HVAC Service Excellence in Destin

Any resident of the Destin, FL or the surrounding areas can tell you just how brutal our summers can be in Florida. From the extremely high temperatures to the oppressive humidity, having a working air conditioner is essential to our survival and comfort. Your friends at Mills Heating & Air have been dedicated to delivering the best HVAC services to Destin residents and also the surrounding areas since 1984 and we’re here to help you any time you are in need of reliable HVAC services. When it comes to AC repair in Destin, FL, we are your local choice.

  • Quality Service You Can Trust
  • Transparent, Competitive Pricing
  • Exceptional Workmanship

HVAC Repairs

We repair the top AC brands and models for residential properties. Low-interest financing plans are available upon request.

A NATE-certified professional will diagnose your heat pump issue and provide a fixed-price quote for the work. We specialize in all of the most popular heat pump makes and models.

Our NATE-certified professionals repair all of the most popular furnace makes and models and resolve most heating issues in just one visit to your property.

HVAC Replacements

We're a Carrier Factory Authorized Dealer with 39 years of AC installation experience. We offer free estimates, low-interest financing, and the highest-quality replacements for residential properties of all sizes.

See AC replacement details

A Comfort Consultant from our team will arrive in person to help you find the perfect heat pump system for your residential property. Low-interest financing is available. We're proud to be a Factory Authorized Dealer of Carrier.

We will send a certified Comfort Consultant to your home to assess your needs and share options and pricing on a range of residential furnace systems. Low-interest financing is available upon request.

We install the latest ductless AC systems for homes across the Emerald Coast. During your free estimate, we'll share options and pricing for a variety of ductless AC brands and models. Low-interest financing is available upon request.

HVAC Maintenance

We will send an expert technician to your property to clean and maintain your residential HVAC systems. We recommend signing up for our Planned Maintenance Service Plan for even more maintenance benefits!


We install the latest smart thermostats, including the Ecobee 3, the Ecobee 6, and Ecobee smart sensors which help reduce hot and cold spots around the home and reduce energy costs while you're away.

Can't find what you need? Give us a call.

We take thousands of residential service calls every year. If you do not see the service you need on our list, please call us at (850) 862-4796. We may still be able to help. We look forward to assisting you!

Customer Testimonial

I have nothing but praise for Mills Heating & Air!!

“My daughter came down to the beach house expecting friends the following day. Upon arrival, she found that the AC was OUT!! This was at 4 PM. I have used Mills for AC repairs for the past eight years. When I reported the situation, they very kindly sent a guy out at 6 PM to check the unit. He repaired it the following morning. So I have nothing but praise for Mills Heating & Air!! Thank you MILLS.”

—Denny S. | Emerald Coast Homeowner

Why Choose Us

Serving Florida's Emerald Coast Since 1984

A uniformed Mills technician using equipment to diagnose an outdoor AC unit.

Our mission at Mills Heating & Air is to give our customers the value they deserve and the highest quality repairs and replacements. We've been part of the Emerald Coast community for 39 years and resolve over 10,000+ service calls every year. If you require HVAC service and want it done right the first time, give us a call today!

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Service Area

Proudly Serving Fort Walton Beach, Destin, Panama City Beach, and the Surrounding Area

We have offices in Fort Walton Beach and Panama City Beach, Florida and assist customers in Walton, Okaloosa, Bay, and Santa Rosa Counties as well as the entire Emerald Coast region.

Some of the cities we visit regularly include:

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Schedule HVAC Service with Us Today