HVAC Services in Round Rock, TX
O2 Kool Refrigeration & AC brings trusted HVAC service to Round Rock. Our certified technicians handle emergency AC repair, system replacement, heat pump installation, and seasonal maintenance for residential and commercial properties throughout Round Rock and Williamson County.
HVAC Services Available in Round Rock
Round Rock is a major suburb north of Austin, home to Dell headquarters and thousands of growing families. The hot Texas climate and mix of older and newer HVAC systems means reliable service and honest repair-vs-replace guidance matters a great deal here.
What Customers Are Saying
O2 Kool serves customers across Round Rock and the surrounding Hill Country.
“Our experience with Brad, Joe and Sway this weekend at O2Kool was top notch quality. Brad's knowledge and professionalism was what stood out and replacing our entire old system due to age (R-22) was completed quickly and competently.”
“02Kool are the best! They have looked after our airconditioning unit for a number of years. They have always been fair, reliable and they get the job done quickly! I have now replaced two aging units with them and they come support them, no questions asked! I could not recommend them more highly.”
“First of all I love how this place is open 24/7. Our AC was not working and it was really hot in our house. We called 2Kool and they sent Brad to our residence that same day. He was fast, and knew exactly what to do.”
“This company works 24/7 which is awesome. Our AC wasn't putting out any cold air. Called O2Kool, they sent out their technician Brad. He assessed the problem very quickly, and knew what caused it. Had us back and running in no time same day.”
“I had my AC quit on a 100°F+ day and Brad was able to come out within a couple hours for an after hours fix. Brad quickly diagnosed and repaired the issue for a good price. Brad was very friendly and explained exactly what was broken. I plan to use O2 Kool when I need a full HVAC replacement as well. Thanks Brad!”
“I had the most amazing experience with O2Kool! It was Friday night at 6 and we realized our unit was not cooling properly. I found these guys online. I called in a panic. They sent Brad over THAT NIGHT! He inspected our whole system and got us up and running.”
“One of the A/C units in our rec room at Edgewater Resort in Buchanan Dam quit working late today. Spent quite a bit of time trying to find someone available to check it out for us. O2Kool is open 24 hours, and they responded right away. Brad swooped in and saved the day.”
“Chris came out to service my parents' AC unit that wasn't working. He found the ants that were in the unit, cleaned them out and got the AC running. The amazing thing is he did not charge them anything for his time and service. Great company and good people! Would definitely use them again.”
Need HVAC Service in Round Rock?
Call us now or fill out our contact form — we respond fast and provide honest, upfront pricing on every job.