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Heating & Air Conditioning Repair, Replacement and Maintenance in Austin


HVAC repair

If you’re experiencing issues with your heater or air conditioner call us!


HVAC replacement

If you’re in need of a new furnace, AC, or complete system call us!





Look below for savings and special offers on repairs or replacement!

Austin HVAC Maintenance Agreements

Heating & AC Repair, New Installation & Maintenance

Let’s get your home back to “ahhhh”, as soon as possible.

AC & Furnace Replacement Rebates in Austin!

Are you looking to replace your old AC and furnace with a new energy efficient AC and furnace? What deals are available? Glad you asked! By now you know that we make it our job to know what AC replacement rebates are available in Austin.

This season there are up to $7,500 in combined rebates and savings available on new AC systems, that’s huge! Plus, Austin Energy is offering 0% financing for up to 5 years with approved credit! You owe it to yourself to call us today and learn more. 

HVAC McCullough, HVAC Austin, AC repair Austin, heating repair Austin
HVAC McCullough heating repair Austin

Austin AC Repair & 24-Hour Emergency AC Service

Need AC repair in Austin? Temperature rising? Let’s get you fixed up! Our technicians are as friendly and knowledgeable as they get. Call us for Austin AC repair as soon as you notice something isn’t right. After all, a broken air conditioner doesn’t get better on its own. We’re experts at this – we can solve the problem and get you back to feeling cool right away.

Need emergency AC service in Austin? It’s never too late to call for your Austin AC repair. Whether it’s 3am on a Sunday or 1pm on a holiday, we have a team of technicians on call. 512-280-0011

Austin coupon


Signup for our mailing list to receive $25 OFF any heating or cooling repair. No other discounts apply. Not valid on prior estimates. Limit 1 per customer.


McCullough offers an independent take on dependability. 

We provide full-service HVAC expertise across Austin and the greater metro area. Count on us to repair, replace, upgrade, or maintain your heating and air conditioning systems. We’ve been here, just around the corner, since 1977, serving generations of Austin area families and businesses.


We do HVAC differently.

Instead of building our business on maybes and passing eventual cost-savings to you when it’s left over, we’ve built our business on certainty and experience. This way, cost savings are yours to keep and you don’t have to jump through hoops to earn them. No gimmicks. We won’t put on fancy marketing shows to try to get you to remember us. You’ll remember us because your neighbor recommended McCullough. You’ll remember us because of the work that we do for you.

AC Repair Austin

Air Conditioning tune-ups & repair

Beat the Heat This Summer with an AC Tune-up

Prevent minor issues from becoming major issues, and optimize performance & energy efficiency at the same time with our Air Conditioning Tune-up. Don’t wait for the extreme heat to find out your AC isn’t ready to perform. Schedule your tune-up today!

Is Your HVAC Struggling to Keep Your Home Comfortable?

Avoid an emergency outage - make an appointment now!


We take such pride in the work we do.

At McCullough, our skilled team can meet your needs, no matter how complex the issue. We will explain all of your AC repair and replacement options so you can make an informed decision. No sneaky upsells or gimmicks, just honest advice and service.

Pinpointing heating or cooling system problems and properly fixing them takes skill and knowledge of not only the mechanical systems but also an understanding of HVAC airflow (volume, velocity, and area) and thermodynamics.

Ensure your HVAC system is running efficiently and smoothly with our seasonal preventative maintenance inspection service – McCullough Comfort Club.

Helpful HVAC videos

5 Reasons Your AC System is Underperforming

Do I Need to Clean My Air Ducts?

Filters – Clearing Up the Confusion

Things to Check Before You Call for AC Service

We service all or parts of -

78701, 78702, 78703, 78704, 78705, 78717, 78719, 78721, 78722, 78723, 78724, 78725, 78726, 78727, 78728, 78729, 78730, 78731, 78732, 78733, 78734, 78735, 78736, 78737, 78738, 78739, 78741, 78742, 78744, 78745, 78746, 78747, 78748, 78749, 78750, 78751, 78752, 78753, 78754, 78756, 78757, 78758, 78759, 78613, 78617, 78619, 78620, 78628, 78634, 78641, 78660, 78664, 78665, 78681

If you don’t see your location or have a question, please call us at (512) 280-0011.

*Offers subject to change without notice. Call for complete details. Cannot be combined. Financing with approved credit. Offers expire 9/30/2021

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