Trusted Heating & Cooling Services in Austin, TX Since 1977

100% Satisfaction Guaranteed
STILL Locally Owned and Operated
Don't Miss Out $2,000 Federal Tax Credit for New SystemsExpires 12/31/25

Our Services

Financing options available

We Live Here, We Give Here! 0% financing for up to 6 years
View Financing

Experience the McCullough Difference

More Than a Service Call—Comfort You Can Count On
  • Trusted Service Since 1977
  • Expert Installation & Quality Repairs
  • Flexible Financing & Satisfaction Guarantee
  • Reliable, Local, Transparent Service
Book Now

Don’t Miss Today’s Offers

New Heating and Cooling System
as low as $108/Month
+ Potential Federal Tax Credits
Book Now

Expires: 9/30/2025

View All Offers
Contact Us

Quality Service Recognition by Leading Organizations

Proudly Serving Austin and the Surrounding Areas

View All Service Areas

Join our maintenance plan

Ensure Your Equipment is running smoothly Year-Round
See Our Maintenance Plans

WHAT YOUR NEIGHBORS ARE SAYING ABOUT US

3 days ago
Dennis Gregoire
We greatly appreciated the fast and efficient work that Thomas Ischy did at 10 PM to clear our clogged condensation line. He also installed a properly placed clean out port to help us avoid that problem in the future. His thoughtful and appropriate handling of the situation was also much appreciated.
3 days ago
austin homey
We would definitely recommend McCullough heating and air to everyone. From the dispatchers (Mikayla was great! )to the technicians everyone was professional-caring and on time! Jim and Renee
3 days ago
Greg Keller
Makayla was amazing! They were very knowledgeable, professional and fast! 10/10
4 days ago
lawrence briones
Tech was very thorough and restored A/C quickly and alway a pleasure doing business with a locally based one.
4 days ago
Achal Gupta
I recently had Alex come out for a home visit, and I was really impressed. He was professional, personable, and very knowledgeable. He took the time to explain everything clearly and shared valuable insights that helped me better understand my options. It’s rare to meet someone who combines expertise with such a down-to-earth approach — highly recommend working with him.
    View All Reviews