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

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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.

Jimmy G.
Jimmy G. 5.0
Leah Bowers
Leah Bowers 5.0

McCullough did an amazing job! They were kind and professional.

Petra Hackett
Petra Hackett 5.0

Great and thorough service. Found and fixed an issue two other providers failed to resolve. I'll go back for all of my HVAC needs.

Brenda Jackson
Brenda Jackson 5.0

Thorough check for price quoted. No pressure only professionalism.

Cathey Hinojosa
Cathey Hinojosa 5.0

Sunday evening mid-July when I got home, the temperature in my home was 81 degrees. I called McCullough heating & AC first thing Monday morning. They were able to come out within the hour. The young man who helped me, Henry, was very knowledgeable & ...professional. He checked everything & shared options of what I needed. There was no pressure, just honest information. I will call them again when I need AC work.Read More...

Monica 5.0

Phenomenal job!! They responded very quickly and did diagnostic check and went through cost and expectations! AC was fixed in a few days - thanks Desmond you \m/ 👍🏼👍🏼

James Lak
James Lak 2.0

He showed up late he tried to sell me 12 lbs of Freon that goes in a 3 ton system he also tried to tell me that I needed a whole new system when in fact I got a secondary opinion from another company they found the leak and didn’t charge me to find it ...informed me that it was in fact the coil that was bad and the leak was happening at the connection point plus when I went to the attic just after nick left my whole ac panel on the inside unit was left sitting in the insulation!!Just because people live in a nice house and have nice cars doesn’t give a company like McCullough the right to upcharge and upsale someone on something!! I am extremely disappointed with this company. What ever happened to the days when a technician was a technician and not a salesman this company doesn’t care about the customer it only cares about its bottom line !! FYI your ac system consists of Inside a big metal box with a computer on it a coil some dampers and your air filter your outside unit is just a large radiator fan and 2 metal pipes that run to the inside unit . Now tell me why I would need a new system if everything else works fine minus it not blowing cold air why not just sell me the coil ?? EDIT: the company called and tried to resurrect the issue that was Big of them for that that’s why I updated my review to 2 stars . Thanks for reaching out !!Read More...

Jose Ruiz
Jose Ruiz 5.0

Great and prompt service. Frank called me to go over his findings in a very detailed and easy way to follow manner. Really happy with the service.

Michelle Gadush
Michelle Gadush 5.0
Prianshu Ahuja
Prianshu Ahuja 5.0

McCullough team is very professional and handles the concerns with due diligence. They came for second opinion for air handler change and i decided to go with them looking at there professional team and reviews. They gurantee satisfaction with there ...work and resolve any issues that comes post installation. We had freezing pipe issue post installation and they quickly sent there experienced representative Kyle on 4th july to resolve issue there after . I can trust them with any HVAC issue in the future and will be at peace that it will be taken care by professional team.Not to forget there Manager Shelton personally messaged me and assured me that work will be completed to the satisfaction . Thanks McCullough team for the great Job. Thanks PrianshuRead More...

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