O 2 KOOL REFRIGERATION & A/C logo
Approved
Approved

O 2 KOOL REFRIGERATION & A/C

Electrical Baseboard or Wall Heater - Repair, Central A/C - Install, Central A/C - Service or Repair,

About us

O2Kool has been Austin’s premier HVAC company for the past 15 years and we’ve shown no signs of cooling down. Our ability to confidently assess, install, repair,and upkeep our units, sets us apart from all other HVAC companies. Our experienced technicians are on call 24/7 in order to provide optimum customer service to each and every one of our clients. We aim to fulfill our clients’ HVAC needs by promising reliable, honest, quality service but we don’t stop there. Our technicians will educate our customers on the process of maintaining their units in order to maximize their a/c and heating experience.

Business highlights

Emergency services offered
11 years of experience

Amenities

Emergency Services

Yes

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
4.8528 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
89%
4
9%
3
1%
2
0%
1
1%

Filter reviews by service

Showing 1-25 of 528 reviews
Somin S.
Jul 2025
4.0
Gas Furnace / Forced Air Heating System - Repair
$99
was able to come out very quickly. technitian was able to flush the condensation pipe but wasn't too knowledgable beyond obvious issues

John F.
Jul 2025
5.0
Central A/C - Service or Repair
They were great

Holden L.
Jun 2025
5.0
Central A/C - Service or Repair
$300
Honest, trustworthy, and quick. My AC unit wasn’t able to keep up with the heat. Michael came out an hour after I put in the request, ran a few tests, and had it fixed in 30 minutes. He was very honest every step of the way and didn’t attempt to sell me a service or repair that I didn’t need.

David D.
Jun 2025
5.0
Central A/C - Service or Repair
They came in - quoted us a price and fixed up our system in the space of an afternoon. I’d highly recommend them.

Zach M.
May 2025
4.5
Central A/C - Service or Repair
Yes, I recommend this pro
Great work. Quick

Frank M.
Dec 2024
5.0
Gas Furnace / Forced Air Heating System - Repair
$50
Amazing - Brad called me in the morning and then I called him back. He came over same day, sent photos of the exact issue, and fixed the problem within 30 minutes! House went from cold to heat working in just minutes. Could not have been happier with the service and 100% will call them again if I run into any heating/cooling issues in our house!

Daniel H.
Oct 2024
5.0
Central A/C - Service or Repair
Yes, I recommend this pro
$1
Brad arrived within a few hours, diagnosed the problem, got the system back up in running within 20 minutes and wrote me a very reasonable estimate for a full system replacement. We will keep our system for now but when we replace it, we will definitely be calling the good folks at O2 Kool!

Pamela S.
Aug 2024
0.5
Central A/C - Service or Repair
When I called them four years ago, they came out quickly and replaced my a/c unit and I thought they had done a good job. But two years later, I was already having issues and they could care less. Came out a day or so after I called, but I had to wait over a week for the parts they needed. They never returned phone calls. Eventually got one part replaced but never did come back to fix the second issue. Same issue this year. I called them last Tues. 8/6, but they didn't come out until the next day and did not call before coming out. Said they would have to order the necessary parts and it would take 3-5 days. Ten days later they still do not have it and have no idea when they will. I called another service provider and they were here within an hour. I now have A/C again after 10 very hot days. I would NEVER do business with them again.
Response from O 2 KOOL REFRIGERATION & A/C
"I am sorry to hear we haven?t been up to par with taking care of you we will try harder and keep trying to do better and take care of everything that?s needed sorry again for the service"

Craig B.
Jul 2024
5.0
Central A/C - Service or Repair
Yes, I recommend this pro
$9,900
Brad and Sway did an amazing job cleaning my AC drip line. They came out the same day I called their company and got the job done quickly. The ac unit would not run until the plug was removed. I have used them before and will use them again in the future.

Robert E.
Jun 2024
5.0
Central A/C - Service or Repair
Yes, I recommend this pro
Brad called within a minute or two of the quote request. He said he'd be in the area within an hour or two. Came by and cleared the drain in about 10 minutes. I had tried to fix it myself and he helped me understand the extra step that was needed due to where the clog was. He also offered to put in a float switch at a very reasonable price to avoid my garage getting flooded next time, but there was zero upsell pressure for that. Will definitely call 02 Kool next time I have any issues!

Chelsea B.
Jun 2024
5.0
Central A/C - Service or Repair
Yes, I recommend this pro
$99
My AC wasn't working and was leaking everywhere. When I requested the quote I got a call back within 2 minutes. They were able to come out the next day and fix everything for a reasonable price. Brad was very professional and kind! My AC drain was backed up, it was unclogged in about 5-10 mins.

Lu H.
Jun 2024
5.0
Central A/C - Service or Repair
Yes, I recommend this pro
0

John K.
Mar 2024
5.0
Heat Pump Repair or Service
Yes, I recommend this pro
Pleased with work and honesty

Gaye C.
Mar 2024
5.0
Central A/C - Install
Yes, I recommend this pro
I highly recommend this company. The service was outstanding and they went above and beyond.

Ric R.
Aug 2023
4.5
Central A/C - Service or Repair
Yes, I recommend this pro
They came quickly and provided a good service at a reasonable price

Cat M.
Jul 2023
5.0
Central A/C - Service or Repair
Yes, I recommend this pro
In the middle of a record heat wave my AC broke. AC repair companies have been very busy, but 02 Kool assured me they would make it out to me the same day, and did. Tech fixed my AC and had it cooling in a half hour. I can sleep at night thanks to 02 Kool.

Michael S.
Jul 2023
5.0
Central A/C - Service or Repair
Yes, I recommend this pro
My AC failed in the middle of the night. Next day was going be hell for me and my dogs. 105F. I placed the request to Angie and O2 called me a little after 8 am. Already on the way!

Hillary K.
Jun 2023
4.5
Central A/C - Service or Repair
Yes, I recommend this pro
Very nice young man. Fixed the problem quickly. Was quick, professional, explained what was wrong and how he fixed it. Showed us the part he replaced. Would definitely use him again and recommend him and Angi.

Sharon V.
Jun 2023
5.0
Central A/C - Service or Repair
Yes, I recommend this pro
Brad did an excellent job repairing our AC. He responded quickly to my call for help. When he arrived he was very polite and professional. He assessed the problem quickly and told me what he thought the problem was. Brad was very honest about the fact that my unit may still be under warranty with the company I purchased it from and that it would be less expensive for me to have that company repair or replace my unit. As the trouble shooting continued, Brad discovered there was a blockage in the drain pipe which was causing the problem, a much less expensive problem than what he originally thought. He blew out the drain pipe FREE OF CHARGE!! My AC is now working like a charm. I was so impressed with his honesty, his skill, and his work ethic that I will be singing his praises to everyone I know. This company is a rare find with old fashioned values you just donâ t find anymore. I will recommend O2 Kool to everyone I know. Thank you Brad!

Benjamin L.
May 2023
5.0
Electric Furnace or Forced Air Heating System Repair Service
Yes, I recommend this pro
Fantastic work! Quick, polite and affordable!

Tori P.
May 2023
5.0
Central A/C - Service or Repair
Yes, I recommend this pro
Quick, 1 minute callback, same-day response and quick same-day repair.

Ewa O.
Mar 2023
5.0
Central A/C - Service or Repair
maybe

Steve S.
Dec 2022
0.5
Central A/C - Service or Repair
Repairman couldn't fix the AC problem because he was working on the wrong unit (there are 3 at my house). Once he figured out the correct unit he said that he doesn't have access to parts under waranty. He wanted to replace the whole unit. I had to hire soneone else.

Steven R.
Nov 2022
5.0
Central A/C - Service or Repair
Yes, I recommend this pro
$1
Great fast service

Clayton B.
Nov 2022
5.0
Electric Furnace or Forced Air Heating System Repair Service
Yes, I recommend this pro
Good!
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Showing 1-25 of 528

Licensing

State Contractor License Requirements

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FAQ

O 2 KOOL REFRIGERATION & A/C is currently rated 4.8 overall out of 5.

O 2 KOOL REFRIGERATION & A/C accepts the following forms of payment: CreditCard

No, O 2 KOOL REFRIGERATION & A/C does not offer free project estimates.

No, O 2 KOOL REFRIGERATION & A/C does not offer eco-friendly accreditations.

Yes, O 2 KOOL REFRIGERATION & A/C offers emergency services.

Yes, O 2 KOOL REFRIGERATION & A/C offers warranties.