Trusted Heating & Cooling Services in Austin, TX Since 1977

100% Satisfaction Guaranteed
STILL Locally Owned and Operated
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512-280-0011
0% financing for 72 Months with approved credit

Our Services

Heating

Our heating services are designed to keep your home comfortable and efficient throughout the colder months. We provide expert solutions that ensure reliable performance and energy efficiency. Trust us to handle all your heating needs with professionalism and care.

Air Conditioning

For reliable cooling services, trust the experts at McCullough Heating & Air Conditioning. Our skilled technicians are equipped to handle all your cooling needs, ensuring your home stays comfortable, efficient, and cool during even the hottest months.

Home Energy Audits

For comprehensive home energy audits, trust the experts at McCullough Heating & Air Conditioning. We'll thoroughly assess your home’s energy efficiency, identify areas for improvement, and provide solutions that enhance comfort and reduce energy costs.

Financing options available

We Live Here, We Give Here! Special financing for up to 6 years. Subject to credit approval.
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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
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Don’t Miss Today’s Offers

$100 OFF
on your next repair
New Customers Only. Minimum Repair total of $500 required.
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Expires: 5/31/2026

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Quality Service Recognition by Leading Organizations

Proudly Serving Austin and the Surrounding Areas

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Join our maintenance plan

Ensure Your Equipment is running smoothly Year-Round
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WHAT YOUR NEIGHBORS ARE SAYING ABOUT US

21 hours ago
Jim Bauscher
We were extremely happy with Ryan Lake's approach to resolving an issue with our Carrier system that 3 other companies could not. We felt he truly liked his job, unlike 3 different company's employees we had before.
1 day ago
Fariba Kerendi
Blake was extremely professional from start to finish. He kept me informed throughout the entire repair process and explained everything he was doing along the way. He was punctual, respectful of our home, and cleaned up thoroughly after the job was completed. I was very pleased with the service I received today and would absolutely recommend him to anyone needing HVAC work.
1 day ago
E. A.
I’m a big fan of McCullough’s great tech staff. Everyone is knowledgeable, courteous & friendly. Henry was great today. McC’s has excellent admins who are not confused at all by my two accounts - a refreshing change from other AC services! Thanks so much, everyone. See y’all in autumn for the next seasonal check. (May 8 ‘26) Excellent experience with McCullough! I’ve been impressed with their good communication and top-notch service. Kudos to Myra, Michael and Ricky. Special shoutout to James for his keen observation/diagnostic skills, his knack for explaining things to clients, and his calm efficiency in tackling work at hand. I’m very pleased. Thank you! (2024)
1 day ago
Robert Sirvage
If you are looking for best of both world - quality and cost, look no further!
1 day ago
Chris Oconnell
Great Service! I needed a unit fixed ASAP and another checked. Called the service line and had a great automated experience. No waiting on hold. Booked a service call for next day and I was kept up to date by text. Kyle arrived and was very polite and methodical explaining what was needed and the cost. Very simple and he cleaned up after checking the units inside. So thanks for a great experience.
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