We Are Austin, We Are HVACTrusted Heating & Cooling Services in Austin, TX Since 1977

100% Satisfaction Guaranteed


When a technician arrives at your home they will explain all of your options before starting repairs so you can make decisions before any work begins. You can trust us to perform a professional Heating job.


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When you need Cooling services, trust the experts at McCullough Heating & Air Conditioning. Our technicians have the skills, knowledge, and tools to fix most Cooling problems on the spot.


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When you need Energy Audit services, trust the experts at McCullough Heating & Air Conditioning. Our technicians have the skills, knowledge, and tools to fix most Energy Audit problems on the spot.


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See The McCullough Difference For Yourself

Don’t call a stranger, call McCullough! 100% Satisfaction Guarantee!

  • Austin Energy Registered Contractor
  • Trusted service since 1977
  • 0% Financing for Installs
  • Locally owned & operated

Financing options available

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

Join our maintenance plan

Ensure Your Equipment is running smoothly Year-Round

Don’t Miss Today’s Offers

Our Special Time Limited Offers is a great way to save money on your Home services! Contact us today and book An appointment.

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Lower your energy costs today!

The Inflation Reduction Act is a landmark new law to curb inflation by offering incentives to invest in high-efficiency home improvements, among other things. The act provides you with a 30% credit on the purchase of energy-efficient water heaters and HVAC systems (the two biggest sources of energy usage in your home). Combine this with savings from McCullough, decreased energy bills, and there’s never been a better time to invest in energy efficiency!

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What your neighbors are saying about us

The Team at McCullough Heating & Air Conditioning are known for their friendly personalities, excellent customer service and competitive prices. See what other locals are saying about us.

Nithya Mandala
Nithya Mandala 1.0
Jenn Ritchie
Jenn Ritchie 4.0

Dylan was helpful. Gave us some great insight on how to fix things to improve the health of our system. 4 stars only because the same service less than a year ago was $65 dollars less. That seems like a huge jump within 9 months on cost of services

Brian Payne
Brian Payne 5.0

Dillon did a great job diagnosing and explaining the problem. He was much more knowledgeable and thorough than the tech from another service provider!

HushxUp 5.0

Desmond has amazing customer service, he explained everything that was wrong with it and fixed it right away. Seems like he is very knowledgeable and knows what he is talking about. I give him a 5 star and I would definitely recommend him again. You got ...a good one!Read More...

WakeupRICH 5.0

Desmond was very helpful and respectful! Glad my system is fixed!

Vitaly Zavadsky
Vitaly Zavadsky 5.0
Adam Pan
Adam Pan 1.0

The technician serviced my heat pump was DeAndre Rodriguez. Earlier this week my heat pump stopped running. DeAndre came by and measured all the voltages going in and out of each component. He claimed "I found the problem. It's the starting voltage is ...above system specification." and showed me the reading. Then he said, "It can be fixed by installing a hard start kit, which also prolongs the life of the system." I trusted his judgement since McCullough has great reviews and paid several hundred dollars to have DeAndre install the hard start kit. Heat pump started running again. So far so good. But only 40 minutes later the heat pump stopped again. So I called DeAndre back. After running diagnostics for almost an hour, DeAndre said the capacitor in the heat pump is dead and needed to be replaced, which he quoted it would be $5000 to $6000 depending on which model of the heat pump I want. I was very disappointed at this point since he didn't find the root cause of the problem and didn't want to take hard start kit back and issue a refund for his bad professional judgement. Also, their quote is high. After soliciting some bids from different contractors, the lowest bid was $4500. This is the first and also last time using their services.Read More...

Christopher Wheless
Christopher Wheless 5.0

Kyle is a good guy who got right to work.

Josh Grossfeld
Josh Grossfeld 5.0

Dillon was awesome! Knowledgeable and consultative. I highly recommend calling McCullough.

christopher ledezma
christopher ledezma 5.0

Desmond Lopez, truly saved the day for us! Desmond showed up at 8:30 at night on an urgent call after the first company we called flaked. My family is truly grateful full for his hard work. He had a great attitude and upbeat spirit from the moment he ...knocked at the door to the time he left. All in all a 5 star experience! Thank you again Desmond!Read More...

Serving the Austin area, TX since 1977

  • Allandale
  • Anderson Mill
  • Austin
  • Barton Creek
  • Brentwood
  • Cedar Park
  • Courtyard
  • Crestview
  • Davenport
  • Ranch
  • Jollyville
  • Lakeway
  • Leander
  • Lost Creek
  • Northwest Hills
  • Oak Hill
  • Pflugerville
  • River Place
  • Rolling
  • South Austin