We Are Austin, We Are HVAC
Trusted 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

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Also Serving the Georgetown Area

McCullough is proud to now offer HVAC Services in Georgetown, Hutto, Round Rock & Sun City!

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.

Shyaen Justice
Shyaen Justice 5.0

Had a great experience with this company. They were fast to come help, reasonably priced and honest. There were a few minor issues after the job was done in which they came right back out in a timely manner to repair.

Pramod Chavan
Pramod Chavan 5.0

Our AC was not cooling well, so we called McCullough Heating & Air Conditioning. Scheduling service was quick and easy. Nick arrived on time, identified the issue promptly, and fixed it efficiently. He also explained the problem and gave us useful tips ...for maintaining our AC. Very happy with the service and highly recommend them!Read More...

Heather McLean
Heather McLean 5.0
Tushar Shah
Tushar Shah 5.0

After a few hiccups regarding the time with the coordinators, it was refreshing to see Alonzo Olivia's go through the equipment and point out a replacement of part.

Joan Bates
Joan Bates 5.0

Outstanding in every way a customer could want or need! The Big 3 for me: Thrifty-Friendly & Quality. am a retired attorney. I research everything, big and small. I knew the issues with my HVAC would be big, so I chose 3 local contractors to diagnose ...and give me bids. One no longer was locally owned. McCullough was not only the best bid, they didn’t try to oversell what I needed to make my system run efficiently. I also liked the representative who came out, and every single individual I interacted with during the process. I was signing a document that needed two witness signatures and the installers even, happily did this for this for me! I started to have noise issues, they were prompt in sending a qualified technician, and flexible about scheduling around me, not themselves. It was discovered that the blower motor was out of line, (a lemon) they ordered the parts, had them the next day and got the job done-right-around my schedule. Telling me what to look for if I had any future concerns or problems. I paid 50% less than the other better known (by heavy advertising) local firm, got 100% customer service, from skilled and friendly technicians, and an exceptional labor and products warranty, without any additional cost. I got the peace of mind knowing that they would be here for as long as I or a subsequent owner needed me. Also, the guys in the photos are actually the guys who come out!Read More...

Candace Kimbrough
Candace Kimbrough 5.0

De’andre came to service our unit on a holiday and made sure that we did not suffer in the Texas heat. It was after hours and they made sure to take care of us. He performed great service and we will use McCullough again and again.

rishi patel
rishi patel 5.0
Jeff Bertram
Jeff Bertram 5.0

Good service and communication. The technician Junior was very professional and knowledgeable.

Katherine A Howard
Katherine A Howard 5.0
Mike G
Mike G 5.0

Serving the Austin area, TX since 1977

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