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: 4/30/2026

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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

2 days ago
Mark Smith
Just had McCullough replace my entire HVAC system and I’m impressed. The sales process w/ Charles was smooth and he clearly knew more about his products than the 3 other competitors I had quote me. The install team consisting of Michael, Francisco and Richard showed up on time and delivered on all of Charles’ promises. Highly recommend!
3 days ago
Richard N
Blake did a terrific job on our semi-annual inspection. Friendly, efficient, and extremely knowledgeable. Highest rating!
3 days ago
Sara Milam
Miko and McCoullough are an exceptional team. From installing the original units to annual check ups- our heating and cooling runs at its best.
3 days ago
Kathleen McGinn
Great service, good prices, professional, reliable and friendly. Very happy with McCullough.
3 days ago
Kristine Devine
Blake did a great job on our spring maintenance. Great communication and excellent service$
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