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.

Give us a call or let us contact you

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!

What your neighbors are saying about us

The Team at Leak Finder are known for their friendly personalities, excellent customer service and competitive prices. See what other locals are saying about us.

Ed Hargett
Ed Hargett 5.0

Excellent,thorough maintenance on AC system

vijay bhaskar jonnala
vijay bhaskar jonnala 5.0

Desmon has shown his workmanship from the diagnosis to walking through the list of issues and fixes. We are very happy with his service.

Asim Dhital
Asim Dhital 5.0

The technicians were timely and quick with both their diagnosis and fixing of the issue. They demonstrated a commitment to quality workmanship and went above and beyond to ensure everything was in perfect working order. The pricing was fair and ...transparent.Read More...

Debbie Moore
Debbie Moore 5.0

My son's house needed a new HVAC a few months ago. We worked with Troy Moomey at McCullough. Troy worked with us from initial call through the entire process and was Amazing!!! Not only, did Troy provide us with several options, but gave us a great ...deal! Installers were professional and efficient! I would recommend Troy and his team for any repairs or installations! It's nice to find a company and their employees that are honest, trustworthy and produce quality work!! Thanks guys!!Read More...

Amanda Brown
Amanda Brown 5.0

Nick, our Technician was super professional and personable. Highly rate this company for standing by their work & their word.

David Phillips
David Phillips 5.0
R D 5.0
Margie Riley
Margie Riley 5.0

I've had 2 different heating & ac units placed by McCollums (2 different houses) and repairs also. They're always friendly, quick & professional!!! Will always use & recommended!!

Ute Cray
Ute Cray 5.0

Great service, knowledgeable technician

Hayward Castillo
Hayward Castillo 5.0

Vince was very professional, thorough, and polite. He took his time and did an excellent job. We’ve used McCullough for 15 years and are always happy with them, honest and reliable, fair price.

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