Best heating and air conditioning pros near Round Rock, TX

"I can not say enough positive about Chris and Chuck and O 2 KOOL!! Chuck came out in early January to look at my old Trane gas furnace .. he got it going with no trouble. Now today ... during our ice/snow armageddon it went out again. I called and Chris FaceTimed with me .. looked at what was up and talked me through how to relight the system myself. Good news .. I now have heat! I strongly recommend them to anyone who needs help with their heating and cooling system! They not only helped, but assured me .. a 60 yr old woman .. everything would be OK and safe. That is a VERY rare quality!"

"Great customer service! Tech was very quick and got our A/C back up and running smoothly. We were kept informed throughout the whole process. Will definitely hire again in the future."

Welcome to Cool Crew ATX! Your Trusted HVAC Experts! We provide top-quality heating, cooling, and refrigeration services for homes and businesses. With 30+ years of expertise, Chief Technician Yamel Gonzales and our certified team deliver reliable installations, repairs, and maintenance to keep you comfortable year-round.\n\nWhy Choose Us?\n- Comprehensive HVAC & refrigeration solutions\n- Customer-first approach with integrity & professionalism\n- Energy-efficient systems to cut costs & improve comfort\n- Excellent ratings with 500+ hires in recent years\n\nServices We Offer: Furnace repair/installation, AC tune-ups & replacements, commercial refrigeration, and preventive maintenance.\n\nWhether you need emergency repairs or a custom system, Cool Crew ATX ensures every job is done right. Call 737-637-3900 today to schedule your service and stay comfortable all year long!

"It was scorching hot outside and our AC went out. We immediately called Petrocelli Services and they sent out a professional Technician to diagnose. It turned out we needed a new AC unit after 16 years. The staff was considerate of cost, time and made it extremely easy for me to understand the next steps. The open line of communication was amazing and kept me involved and provided me with detailed order form. Staff also played a huge roll in educating us on maintenance when caring for our new product. I will definitely call them again and refer them to my friends and family!"

"I find them to be very honest. They don't try to make you upgrade. They sell you a little contract each year. They do a clean out of your equipment and a checkout of your equipment in the spring and then again prior to the winter. I have just found them to be real down to Earth. They have told me that my unit is better built than anything that I could buy today. They said as long as I could get parts for this one they suggest that, even though it is not as energy efficient as some of the new ones, it is older, but it is built better and it will last longer. It is very hard to find anyone in that business to tell you that because they are in business to sell new systems."

"Thomas was excellent about responding to our request for an HVAC system bid, and when chosen, they were able to schedule our installation within a couple of days. They asked our needs and made recommendations for the right equipment for our home. The crew was efficient, polite, and neat. I could not ask for more!"

"Matt came to my house the same day that I called and was very prompt. He fixed my AC unit right away and showed me the faulty parts. I am very pleased with him and his service."

"Great company. I recommend them."

"Excellent installation, diagnosis, and customer service. Highly recommend."

"Jose worked with me on the options to fix the hvac. Ended up replacing the whole system at a competitive price. Installation was done nicely and they explained clearly what was done."