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.

Deb 5.0

Our AC went out at the height of the heat in Texas!! Alex from McCullough came out and provided an estimate for the unit. He has a great deal of expertise and knowledge about AC systems. He showed us an issue with the duct work that needed to be ...repaired as well...that no other AC company found. He also recommended an additional vent in an area of the house that never seemed to cool off well. The techs arrived on time and were very professional. They spent all day installing the unit, repairing the ducts and installing a new vent and a new thermostat in the Texas heat!!! McCullough went the extra mile and filed for any/all rebates we could use AND registered our unit with the manufacturer!!! On top of that, an inspector came out 2 weeks later to ensure everything was installed properly and working well. He demonstrated some features on the thermostat that I was unaware of and set it up for us. Everyone showed up on time and all were very professional. Thank you to McCullough and the team that got our AC back up and running. I highly recommend them!!!Read More...

Lynn Lollar
Lynn Lollar 5.0

Contacted McCullough Heating & Air Conditioning after discovering AC was leaking water onto my floor from return vent. Nick, their service tech, was here within 2 hrs. After a total check of my system, he discovered that I was very low on ...refrigerant. I can't say enough about Nick. He was extremely professional, talked to me about all options, and filled unit with refrigerant. I highly recommend Mccullough. I could not have asked for more. Very Satisfied.Read More...

Maged El sariakoussy
Maged El sariakoussy 5.0

MCCULLOUGH heating and a/c are reliable, professional and always on time, the kind of business that we use to have when we were young , all you need is one phone call and forget the rest headache free , bought 2 a/c unit from them and almost 3 years now ...with them and always always same quality of value, professionalism, response…. M El sariakoussy.Read More...

David Stimson
David Stimson 5.0
Cliff Bevel
Cliff Bevel 5.0
Patti Reed
Patti Reed 5.0
Dan Green
Dan Green 5.0

I manage property remotely, called McCullough for AC service. Real time appointment, pre and post followup, on time, professional. Fixed problem for minimal cost.

Patricia Gutierrez
Patricia Gutierrez 5.0

Anytime I've had issues with my HVAC system, McCullough has always been quick, responsive and professional. I'd highly recommend them for any HVAC issues.

Debbie P
Debbie P 5.0

We've used McCullough for many years not disappointed with service

CJ Boles
CJ Boles 2.0

McCullough did great for the emergency service, I take no issue with the expedient service. I'm leaving 2 stars because the lead tech on my new AC installation just over a year ago did not deliver on digging out the drain pipe that they had promised and ...it became clogged (for the second time this year). I paid out of pocket for this last clog yesterday. I don't understand how my NEW installation was certified as "completed correctly" if the drain pipe was left as is for it to become clogged. This is a basic quality assurance miss.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