Austin’s Local HVAC Company & Plumber Since 1977

100% Satisfaction Guaranteed
STILL Locally Owned and Operated
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512-280-0011
0% financing 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 & Plumbing. 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 & Plumbing. We'll thoroughly assess your home’s energy efficiency, identify areas for improvement, and provide solutions that enhance comfort and reduce energy costs.

PLUMBING

For dependable plumbing services, trust the experts at McCullough Heating, Air Conditioning & Plumbing. Our experienced technicians provide professional plumbing solutions, from leak repairs and fixture installations to pipe replacements and routine maintenance. We’re committed to keeping your home’s plumbing system running efficiently, ensuring reliable water flow, improved performance, and peace of mind for you and your family.

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

Free 2nd Opinion on Repairs
Must have a recent quote from a licensed competitor
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Expires: 10/31/2026

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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

1 day ago
Ingrid
I usually use McCullough for HVAC maintenance, but this time I needed plumbing help with a clogged bathroom sink and low water pressure in my master shower. James was amazing and fixed both issues! As a first-time homeowner, I really appreciated his patience and how thoroughly he explained things, including how to protect my tankless water heater during Austin’s winter freezes. Excellent service, very helpful, and professional. I’ll definitely use them again! Highly recommend—ask for James!
2 days ago
Jennie Torres
Sam Marquez was my technician today, and I couldn’t be more pleased with the service he provided. He was extremely professional, informative, and went above and beyond to ensure my HVAC unit was functioning properly again. I truly appreciate his dedication and attention to detail. Excellent service from start to finish!
2 days ago
rachel edwards
Sam was excellent and fixed our issue — on the weekend! He was very thorough and addressed things someone prior had missed. Could not have better things to say about him. Thank you Sam!
2 days ago
Naveed Tejany
Sam was incredible and came out to help me in a pinch! Not nickel and diming me and really cared to resolve my problem.
2 days ago
Dennis Gregoire
When I had several technical questions about proposed improvements to my HVAC system Clayton Crain was the right person to speak with. He thoroughly and clearly answered my questions and set an appointment to come look at my installation to ensure that the details of the proposal would be appropriate for my situation. This is an example of the great service offered by McCullough: technical expertise with a customer centered approach!
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