Serving The Heating & CoolingHVAC Needs of Collin County

With over 28 years of experience in heating and air conditioning, A & Z Heating & Air Conditioning is proud to be your go-to HVAC team in Collin County.

Whether you’re looking for a quick repair, routine maintenance, or a complete system replacement, we’ve got you covered. We’re not just here to fix your system—we’re here to make sure you feel confident and comfortable every step of the way.

We know that dealing with HVAC issues can be stressful. When you choose us, you will always be in good hands. Our customers often tell us they appreciate the extra care we take to explain what’s happening with their system in clear, straightforward terms. No complicated jargon—just the information you need to make the right decisions for your home.

We handle everything from preventive maintenance to emergency repairs and system replacements. But what sets us apart is our commitment to customer satisfaction. We take pride in our work and aim to go above and beyond. From the moment we step through your door, we want you to feel confident that you’ve made the right choice.

If you’re looking for an HVAC company that values quality, honesty, and your peace of mind, give us a call today at (214) 649-3172. We’re here to help keep your home comfortable year-round.