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Air Conditioning & Heating - Replacement and Installation in Collin County, TX

50 Years of Excellence in Comfort & Reliability

For nearly 50 years, Ellis Air Conditioning & Heating has been the trusted name in HVAC services across Collin County, TX. Since 1975, our family-owned and operated company has delivered reliable heating and cooling solutions that homeowners and businesses can depend on. Specializing in residential and commercial AC replacement, our team combines decades of expertise with modern technology to keep North Texas comfortable year-round.

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chris shirey
We had Ellis A/C upgrade our system in our machine shop. We struggled keeping the shop comfortable in the TX heat. Aaron and Mike came out to look at our facility and put a plan in place. They upgraded one of our existing units and added a new unit to the rear of the building. The results were night and day this summer. No issues with creating a comfortable work environment. I’d recommend Ellis A/C to anyone.
Rita DeYoung
Ellis AC and Heating installed a 3-Ton Carrier Condenser last year and a heater this past fall. Jerry was very willing to work with me on pricing. Installation went very smoothly. All techs have been knowledgeable and great to work with. I definitely recommend Ellis.
Rick Worsham
Ellis Air Conditioning and Heating installed a complete new system at my home yesterday and we could not be more pleased. They were very clean and installed the new system in a very timely manner. I strongly recommend them to anyone looking for a class organization for all of their HVAC needs.
Clinton Holy
Great service! Fast and affordable, Larry did a great job getting my house cooled down quickly! I was worried because my 2 yo son was getting hot in his room during his nap but they got Larry out here within 2 hrs of me calling and he fixed the problem immediately. Will aways stay with Ellis Air, always have a great experience with them and their technicians!
Andre Jones
My A/C went out on a Friday and called Ellis immediately. They were able to get me a new unit installed Monday morning. That is insanely fast and much appreciated in this Texas heat. They also did an amazing job at the install and keeping the area clean, I would highly recommend!
M Mann
I experienced very professional and knowledgeable service from Larry at Ellis ac. From the start of my service call on a Sunday to the repair , he performed service of the highest quality. He made the entire process smooth and stress deee. It’s rare to find a service provider who prioritizes customer satisfaction, Larry delivered on every level. Thanks again!
Sierra Ruiz
Our A/C stopped working and after calling Ellis Air, they were able to send out a technician to evaluate the issue the next morning. They figured out what was going on right away and said we could have the issue resolved the following day. We thought about our options for too long and ended up scheduling the replacement of both our old outdoor unit and indoor unit due to the age of the equipment and them being outdated for what we would pay for and have a warranty with new equipment. It was worth it and we'll be covered if anything wears out while we own our home for the next 10 years. Thank you for taking such good care of us and for all the prompt replies and follow up!! We love our new system and are always happy to recommend the great people at Ellis.
Carol Torrence
I have used Ellis AC for 20+ years. I just got a new HVAC system from them in 2024 and I am so pleased. Justin has always been my person who checks my system out and I always ask for him. great company and treat folks good.
Mike Play List
Mike & AndreaMy family with Ellis A/C & Heating awesome. The technician came diagnosed the issue and quote me a price to fix the coil leak. Then we ask about the replacement of the unit in the attic & outside. Then Ellis quoted me a price to replace the entire system in attic and the unit outside. And a schedule to come install. The Ellis team showed up and quickly replaced the system. The team were friendly and respectful. Then team cleaned up and done. I would recommend Ellis Team!
Sheryl Beran
We have had Ellis maintaining our homes HVAC for a few years now and have always had great service. Today William T was our service tech and was very polite and professional. Thank you for keeping us warm/cool.

Residential & Commercial HVAC Services

Ellis Air Conditioning & Heating proudly serves both homeowners and business owners in Collin County. Our services include:

  • Residential HVAC Services – From energy-efficient AC replacements to heating repair, tune-ups, and indoor air quality solutions, we ensure your home stays comfortable through every season.

  • Commercial HVAC Services – Businesses across Collin County trust Ellis AC for large-scale HVAC installations, ongoing maintenance plans, and dependable service that keeps employees, tenants, and customers comfortable while keeping operational costs low.

Whether it’s your family home or your commercial property, our technicians tailor every solution to fit your specific needs.

Why Replace Your AC System?

If your air conditioner is old, inefficient, or breaking down frequently, a replacement can provide multiple benefits:

  • Enhanced Comfort – Consistent, reliable cooling across your home or office.

  • Improved Energy Efficiency – Lower monthly utility bills and reduced environmental impact.

  • Better Indoor Air Quality – Advanced filtration captures dust, pollen, and allergens.

  • Fewer Breakdowns – A new system minimizes costly repairs and unexpected failures.

Our Proven AC Replacement Process

  • Initial Consultation – We discuss your comfort needs, energy goals, and budget.

  • Comprehensive Assessment – Our technicians evaluate your current system, ductwork, and home layout.

  • Custom Recommendations – We present tailored system options and explain their benefits.

  • Professional Installation – Our certified team installs your new unit with precision and care.

  • Post-Installation Support – We provide maintenance plans and ongoing service to extend your system’s lifespan.

Serving Collin County with Excellence

Collin County is one of the fastest-growing regions in North Texas, with beautiful neighborhoods and a thriving business community. From Plano and McKinney to Frisco and Allen, Ellis AC is proud to serve both residential and commercial clients across the county.

We understand the extreme Texas climate—from triple-digit summer temperatures to chilly winter fronts—and we design HVAC solutions that keep your property comfortable no matter the season.

Trusted Since 1975

Decades of Experience

With nearly 50 years of service, Ellis AC has built a reputation for trust, reliability, and quality workmanship. Our certified technicians average more than 15 years of hands-on expertise, giving us the ability to handle everything from simple replacements to complex system upgrades.

Premium, Energy-Efficient Products

We partner with leading manufacturers to offer high-performance, energy-efficient AC systems designed to withstand the Texas heat. Our units deliver superior cooling, long-term durability, and noticeable savings on utility bills.

Customer-First Service

We believe in transparent communication, prompt scheduling, and long-term relationships. From your first consultation to ongoing maintenance, we prioritize your comfort and satisfaction at every step.

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Contact Ellis Air Conditioning & Heating Today

When it’s time to replace your air conditioner in Collin County, trust the experts at Ellis AC. With 50 years of experience, premium products, and a reputation for excellence, we are the HVAC company homeowners and businesses have counted on since 1975.

Call Ellis Air Conditioning & Heating today to schedule your consultation and discover the difference of working with North Texas’s trusted HVAC provider.

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