Trusted Heating & Cooling Services in Austin, TX Since 1977

We decided to replace and upgrade our three air conditioning and heating systems and started the search and evaluation of the equipment and installers available in Austin. We selected McCullough and hoped it was the best choice., Now the units are installed and everything with McCullough was excellent. The sales contact, the best price quite, the technical recommendation, the installation team and promises made - promises kept have all resulted in 100% satisfaction with McCullough. Save yourself time, money and the the risk of selecting anyone but the best by including McCullough. Thank you McCullough for all you accomplished on time and for the excellent service. Now in December 2024 I had my first check up and service was as promised, Professional, very thorough, on time and courtesy. So glad we selected and used McCullough.

Sean was wonderful. So professional and friendly. So was Leo on the phone when I called to schedule the appointment.

Shawn did a great job servicing our heating system. We have the maintenance plan which gives us peace of mind that the system is running properly. He was good explaining what he did and knowledgeable. Thanks Shawn.

Zach was excellent. He is extremely professional, friendly and courteous

Eric Suarez. Same out and quickly established what was wrong with our heater. It was under warranty and before coming down from the attic had already ordered a new motor and scheduled it to ship directly to my house. The next morning the part arrived and within a few hours Eric was back in the attic and had it up and running again in less than an hour. He could not have been more courteous, Or patient in explaining exactly what was needed. I would not have a second to have him back out if the need arises.