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 company. Happy customer”
Simply great service. Friendly , prompt professional, and thorough. I would recommend this company to everyone.

- PB
“Excellent Customer Service”
Tim was very professional and great personality!!

- Melisha F.
“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
“Great company, great people, great work, great product. These people are the real deal.”
Our home central air conditioning system died in he middle of July and we needed to get a replacement. We did a full due diligence search considering all the options available. Please allow me to save you similar time by telling you not to bother and just go to Northside Air. I will tell you that these guys will not be your cheapest option in town (they will be very fair though) but come on, you are talking about buying a system that will control your home environment, every day of every year. Do you really want to be cheap about this or do you want a really good system. These guys were great if I can understate their value. When I inquired they sent Chuck out. He did a full analysis of the home and then sat down and explained all the whys and whatfors. He never pushed us to buy any extra whistles or bells, just laid out our options. When the guys came out to install, they just did an awesome job. From start to finish, their work was clear, accurate and spot on. What a pleasure to work with these guys. Five seconds after they left, you could never tell they were here working, thats how clean they were and how professional their installation was. Great company, great people, great work, great product. These people are the real deal.

- Satisfied Customer
“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
“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.
“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
“Will definitely use Northside again.”
The installers Frank and Jose were excellent and very professional.

- Barbara S.

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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!