The 5 Best HVAC Companies in Austin, TX
Your air conditioner works harder in Austin than almost anything else in your home. It runs most of the year, carries you through 100-degree stretches, and when it quits, you know within the hour. Lining up a company you trust before that day comes is one of the smarter moves a homeowner here can make.
This list of the best HVAC companies in Austin is built on public information, not paid placements. Every company below was reviewed for verified customer ratings, licensing, years in business, and range of services. Nobody paid to be here, and we refresh this list each year as companies and their reviews change.
1. A-Plus Air Conditioning & Home Solutions
Address: 2116 White Horse Trail, Austin, TX 78757
Website: aplusac.com
Years in Business: Since 1977
License: TACLB5235C
Google Rating: 4.9 stars (1,300+ reviews)
Services Offered:
- AC repair and diagnostics
- AC and heating installation
- Furnace and heat pump services
- Ductless mini-splits
- Energy audits and weatherization
- Seasonal tune-ups and maintenance plans
What Sets Them Apart:
A-Plus has been family-owned in Austin since 1977, which makes it one of the most established HVAC companies in the city. They helped pioneer Austin Energy’s early weatherization and energy-conservation programs, so they think about efficiency, not just cooling. Reviewers regularly mention same-day response during peak summer months and honest technicians who repair instead of pushing a full replacement.
Why They’re #1:
Decades of local experience, a genuine energy-efficiency specialty, and consistent fast service put A-Plus at the top. For homeowners who want a deep-rooted Austin company that can handle both the repair and the bigger-picture comfort of the home, it’s an easy first call.
2. The Coolest LLC
Address: 4505 Terry-O Ln, Austin, TX 78745
Website: thecoolestservice.com
Years in Business: Since 2016
License: TACLA76825C
Google Rating: 4.9 stars (900+ reviews)
Services Offered:
- AC and heating repair
- System installation and replacement
- Ductless mini-splits
- High-efficiency and smart thermostat upgrades
What Stands Out:
A near-perfect rating across hundreds of reviews, with homeowners pointing to fair, clearly explained estimates, The Coolest remains a top choice for Austin homeowners. Several say they chose The Coolest after collecting multiple bids and finding this one both better priced and better explained. As a Bryant specialist, they lean into efficiency and getting system sizing right, which makes them a strong pick for hot rooms, additions, and garages that never cool down.
3. Altruistic AC, Heating & Plumbing
Address: 14408 Citron Cove, Pflugerville, TX 78660
Website: altruisticac.com
Years in Business: Since 2015
License: TACLB63701E
Google Rating: 4.9 stars (800+ reviews)
Services Offered:
- AC repair and emergency service
- AC installation and replacement
- Heating and furnace service
- Ductless mini-splits
- Indoor air quality
- Plumbing and water heaters, including tankless
What Sets Them Apart:
Altruistic covers both HVAC and plumbing, so one trusted company handles your cooling, heating, and water heater work instead of three. Across more than 800 reviews the pattern is consistent: fast arrival, often within about an hour, and technicians who lay out your options without the hard upsell. Reviewers name tech Ramon again and again for walking them through repairs calmly, even late on a weekend. A nice touch homeowners keep mentioning is the text with a photo and short bio of the technician before they show up.
They’re also one of the few area companies whose techs are certified to work on older R-22 systems still running in plenty of Austin-area homes. Based in Pflugerville since 2015 and serving the greater Austin area, Altruistic is a standout for homeowners in the northern and eastern suburbs who want big-company responsiveness with a genuinely local feel.
4. McCullough Heating, Air Conditioning & Plumbing
Address: 2620 Buell Ave, Austin, TX 78757
Website: coolmenow.com
Years in Business: Since 1977
License: TACLA136473E (and Master Plumber M-45480)
Google Rating: 4.8 stars (3,800+ reviews)
Services Offered:
- AC repair and installation
- Heating repair and installation
- Full plumbing service
- Indoor air quality and energy work
- Maintenance membership plans
Why They’re Listed:
This is one of the most reviewed HVAC and plumbing companies in Austin, and they have been family-owned since 1977. As a Carrier Factory Authorized Dealer open 24/7, McCullough runs at real scale, so they can usually get someone out fast at any hour. Customers also point to free second opinions and, in more than one case, a few-hundred-dollar fix after another company had quoted a full replacement.
5. Atlas AC Repair
Address: 3800 N Lamar Blvd #200, Austin, TX 78756
Website: atlasacrepair.com
Years in Business: Since 2020
License: TACLB00153401E
Google Rating: 5.0 stars (500+ reviews)
Services Offered:
- AC repair and diagnostics
- AC and furnace installation
- Heating service
- Upfront, published pricing
Local Reputation:
Atlas built its name on transparency. They publish prices on their website and post plenty of explainer videos. Reviewers also say estimates come in fair and detailed with no sales pressure. Family-owned and carrying a perfect 5-star rating, they’re a refreshing option for anyone who’s been burned by vague quotes or a pushy upsell.
How We Chose the Best HVAC Companies in Austin
We don’t accept payment for rankings. Every company here earned its spot on public information alone.
We looked at:
- Verified customer reviews, read for consistent patterns rather than raw star counts
- Current Texas HVAC licensing and insurance
- Years in business and a steady local track record
- Range of services, from emergency repair to full installation
- Responsiveness, fair pricing, and clear communication
If a company couldn’t hold up across those factors, it didn’t make the list. We update these rankings each year to keep them accurate.
Best HVAC Companies in Austin FAQs
Most AC repairs in Austin run between $150 and $600, depending on the part and labor. A capacitor swap sits near the low end, while compressor or coil work costs more. Full system replacement typically ranges from $6,000 to $12,000. Always get a written estimate first.
If your system is under about 10 years old and the fix is minor, repair usually makes sense. Once a unit passes 12 to 15 years or faces a major cost like a faulty compressor, replacement is often the smarter investment. A trustworthy tech will walk you through both.
Yes. Several companies here, including Altruistic and McCullough, offer emergency or 24/7 service, which matters when a summer breakdown turns dangerous fast. Expect after-hours rates to run higher than a standard visit, but for a dead system in July, it’s well worth it.
Because Austin systems run so many months a year, once a year is the minimum and twice is better: cooling in spring, heating in fall. Regular tune-ups catch small problems early, keep energy bills down, and extend the life of a system that works overtime here.
Every company on this list holds a Texas HVAC contractor license. Before work begins, you can ask for a license number and proof of insurance, which any reputable company will share without hesitation. Licensing protects you and ensures the work meets state code.
Want to Be Featured?
Do you run a licensed, well-reviewed HVAC company serving Austin homeowners? We update this list each year and are always looking for reputable local pros to consider. There’s no cost and nothing to buy. We don’t sell rankings. Reach out and we’ll take an honest look at your work and credentials.