Keeping North Texas Comfortable!

We take pride in offering comprehensive heating, cooling, and air quality solutions for both residential and commercial properties.

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Committed to Excellence In All We Do

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Lewisville HVAC Contractor

Superior Indoor Air Quality, Heating & AC Installation, Replacement & Repair in Frisco, Little Elm & Flower Mound

Have a broken heater or AC? Call Northside Air Conditioning for quick and efficient HVAC service in Lewisville, TX. We have immersed ourselves in ever facet of the industry, cultivating a comprehensive understanding that significantly enhances the value we bring to our customers. With collective experience spanning over a century and marking our 20th year in business, Northside Air Conditioning was established to address a distinctive gap in the market.

Some heating and cooling companies employ fear tactics or impulse selling methods to push customers into purchasing services they don’t need—we take a different approach. Our team of trusted Lewisville HVAC technicians is more focused on building and maintaining honest relationships.

When you need Lewisville or Denton HVAC services, give us a call for quick service today!

Check Out Our Maintenance Plan Join our Maintenance Advantage Program & receive comfortable benefits all year long!

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Reviews and Testimonials

See What Our Customers Are Saying

“Excellent experience with Northside Air Conditioning”
One of our AC units went down on a very hot Sunday afternoon. I called several companies that claim 24/7 response time but all were not able to schedule an appointment for 3 to 4 days. I finally found Northside Air Conditioning on line and called. A technician was at my house in about 3 hours and fixed the problem immediately. I found Northside Air Conditioning to be very professional, efficient, courteous, honest, and very fair priced. I will most definitely use Northside Air Conditioning again and will highly recommend the company to friends and neighbors.

- Bill
“Very pleased”
It takes a lot to impress me; the customer service representative who answered the telephone/set up the service call was most pleasant and most efficient. I requested Chris to make sure our heater was in good shape for the coming winter. He has serviced both our heater and air conditioner in the past. Can not say enough good things about his professionalism, work ethic and expertise. I will continue to recommend Northside to my neighbors and friends.

- HBM
“Another great job”
Great job two years now! Very good at explaining the mechanics of how everything works.

- Nancy
“Customers for Life!”
We have been Northside customers for over 10 years. We would never call anyone else. We constantly refer this company to others. John D. is as good as they come! He is always professional, thorough, punctual, and informs me of what is going on with our systems & what we can expect from them for the upcoming season. Additionally, he recently offered to get warranty information for some of the equipment in our new home. He called me back with the info within a day as he promised. This level of service is amazing! Customers for life!

- Marcey
“Quick & Easy”
Jeremy was very professional and completed the maintenance service on our system in a timely manner.

- Lucious S.
“Price was Fair”
“An excellent job!”

- Tara T.
“Wonderful Service”
Wonderful service! Prompt scheduling and very courteous. Knowledgeable on the issues and explains to homeowner very well. Would definitely recommend!

- Christina
“Very Pleased”
Great organization, prompt and professional. Luis is a great tech, very knowledgeable and extremely personable.

- Kristopher

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Why Are We the Right Team for the Job?

Financing Options Available
Financing Options Available. With Approved Credit. Ask For Details.
5-10 Year Parts & Labor Warranties on New Equipment
Over 20+ Years in Business
100+ Years of Combined Experience
24-Hour Emergency Repairs
Lifetime Warranty on All Installations

Denton HVAC Company Rated A+ by the Better Business Bureau

At Northside Air Conditioning, we take pride in establishing the standard for exceptional HVAC services in Denton. Whether you require heat pump repairs, air conditioning installations, or routine maintenance programs, our team is equipped to meet all your heating and cooling needs. As a distinguished Customer Care Dealer, we offer top-of-the-line equipment to ensure year-long comfort in your home. Looking for financing options? We've got you covered!

Proudly Servicing All Brands of Equipment!

Emergency Services Available

Lewisville and Denton HVAC Services Available All Hours of the Day

Our team of HVAC technicians in Lewisville is available 24 hours a day, 7 days a week for emergency repairs. It’s impossible to diagnose all HVAC issues on the surface, which is why we’ll look deep into the issues of your system when you call us for a free in-person consultation. We maintain consistent high levels of performance and promptly address our customers’ concerns, resulting in 100% satisfaction time and time again!