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

“A Part Of The Team”
We've been using Northside for years. They do great work. Good, experienced, knowledgeable people. Have an annual service agreement where they check all equipment in spring and fall and give a discount on parts. Very satisfied customer.

- Tom
“Tim and Josh were great! They did an amazing job.”
Took their time and went over every detail. Very satisfied with their hard work, hope to see them back again.

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

- Nancy
“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
“Reliable & Dependable”
I have used Northside for over 7 years they are reliable and dependable.

- Kathy
“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
“fun to soar with the eagles......”
As always Northside has been efficient trustworthy on time easy to work with and courteous. Almost sounds like a boy scout.... LOL these guys are the best and Chris continued with the reputation and service that over the years I have come to appreciate and expect. Thanks Chris

- Mary
“Quick Repsonse and Turnaraound to keep my house cool!”
Our home A/C froze up after 19 years of service, we called Northside, they responded quickly to come out to provide us with estimate for a replacement system. Matt came out and took measurements all over the house before calculating the right size system for the house. We had several other companies provide estimates over the years, and none provided a quantitative analysis. Because of Matt's thoroughness and transparency with everything he was doing we went with Northside to replace our system. Matt, also followed the job until the installation was complete which was above and beyond my expectations. He was able to communicate directly with installation lead our particular needs, giving use the confidence that the job was completed correctly. We will highly recommend Northside to our friends and neighbors for any HVAC needs.

- Craig

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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!