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

Fill out the form below or call us at 972-996-6511 today to get started. We're available whenever you need us!

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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

“He was extremely kind and professional, and we couldn't have been happier with the experience!”
I called Northside this morning and they had a tech out to my home this evening! Al came to our home and took a lot of time explaining everything in detail, with pictures, in a way that I could understand it without a background in HVAC.

- Casey F.
“Highly recommend Tim and Northside.”
They were on time, affordable efficient and great customer service by Tim. Thank you for taking care of us.

- mBrace Orthodontics
“Go with Northside!”
Kameron was amazing and very professional!

- Alexa J.
“Wonderful Technicians”
We're Northside customers for 2 years now and I am very happy for the services they make. The only company who washes the coils every time someone comes in. And will give you an honest result whenever they find something wrong with the unit. Especially I still have an old unit from the previous company, they are trying to make that unit working good at all times. Today, Chris did my maintenance and tuned my my 2 units and I'd say he's a wonderful Aircon tech.

- Ocgnail
“Price was Fair”
“An excellent job!”

- Tara T.
“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
“Excellent Customer Service”
Tim was very professional and great personality!!

- Melisha F.
“Josh did an amazing job!”
Very professional and easy to work with!

- Melanie W.

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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!