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 every 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

“Professional and Courteous”
Thank you Northside for a job well done. We replaced our upstairs unit and everyone was very professional and courteous. They cleaned up everything and it was a very pleasant experience. Chuck was accommodating to our schedule and the crew was very efficient. I highly recommend Northside!

- Allison
“Great Service”
Kameron and Derrick were extremely professional and fixed our problem in a timely manor.

- Miranda B.
“These are the folks you want working on your HVAC systems”
Every time I meet more of the Northside Air folks I constantly become more impressed. Bobby and Jerry (the owners) are great but now I have met Michael and Tony who are both excellent. Northside Air did all the HVAC in my new build in Flower Mound (5 units with 20 tons of air) and it has turned out great. I liked them so much I had them do all new AC, furnaces and thermostats in my old house in Carrollton (3 units with 11 tons of air). I am an engineer so it does take a bit to impress me on mechanical equipment but the folks at Northside Air do so every time. These are the folks you want working on your HVAC systems.

- David Lewis
“Excellent Service Once Again From Tony G.”
Tony G. was out at my house today doing my 6 month maintenance service. As always he did a great job. Tony is so detailed and misses nothing. I will be asking for him exclusive for my upcoming maintenance service. Thanks for the great service and you need to take good care of Tony. He is a keeper . . .

- David Lewis
“Al was amazing!!”
He was very nice and professional, he took pictures to show us what was wrong with our AC and thoroughly explained everything. Make sure to ask for Al! He was very nice and helpful!

- Breanna R.
“Thank you Tim”
Tim P. was enthusiastic and did a great job.

- Eddie M.
“Thank you for your expertise Kameron.”
Kameron was very polite & seemed extremely knowledgeable in his profession.

- Daphne C.
“Above & Beyond”
Excellence deserves recognition and reward. The team of employees sent to install my HVAC unit no doubt are a product of your leadership skills! Well Done to Tony R., Jamar, Jason & Tamarus. This experience was more rewarding than buying a new car! All my referrals will go to Northside AC! Thank you Tony H. for selling the anti-sales lady! You'll go far! Today I'm living the dream with my Accu-filter!

- Alischa

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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!