Change your air filter regularly
Check it monthly and replace every 1–3 months. A clogged filter restricts airflow and makes your system work harder — especially during Austin summers.
Schedule a tune-up →

We install & service

What We Do
Clear pricing for the visits Austin homeowners book most — from a $59 service call to seasonal tune-ups and year-round protection plans.
Something not working right? We’ll diagnose the issue at your home and walk you through clear next steps.
Seasonal checks and cleaning to keep your system efficient and reliable year-round.
Whole-system plans with scheduled visits so you’re covered before peak season hits.
Learn more about AC and furnace repair or replacement — then book when you’re ready.
Ohm HVAC is a trusted residential HVAC company in Austin, Texas. We pride ourselves on offering up-to-date, efficient heating and cooling systems — and on evolving as HVAC technology evolves, continually training and mastering the latest products and machinery.
We service, repair, and install systems with a focus on comfort, efficiency, and clear communication — so you always know what you’re getting before work begins.
With deep experience in residential heating and cooling, we have the expertise and the know-how to bring unique solutions to every HVAC need or concern.
To get started with your HVAC service, repair, or replacement, contact Ohm HVAC at (737) 777-8736 or request service online.
Areas We Serve
Homeowner Guides
Practical advice for keeping your heating and cooling running smoothly — no jargon, no fluff.
Check it monthly and replace every 1–3 months. A clogged filter restricts airflow and makes your system work harder — especially during Austin summers.
Schedule a tune-up →Trim back plants and clear leaves or debris within about two feet of your condenser. Good airflow helps your AC cool efficiently and last longer.
Warm air, water leaks, burning smells, or loud banging aren’t DIY fixes. Turn the system off and schedule service before a small issue becomes a costly repair.
Book a repair visit →Book AC maintenance in spring and heating service in fall. You’ll beat the rush, catch problems early, and stay comfortable when Texas weather turns extreme.
Book maintenance →78°F is a solid starting point when you’re home in summer. Raise it a few degrees when you’re away — each degree can trim cooling costs without sacrificing much comfort.
Closed or covered registers strain your system and create hot or cold spots. Make sure furniture, rugs, and doors aren’t blocking airflow in any room.
Improve air quality →Real Google reviews from customers in the Round Rock and Hutto area.
5.00
October 2026
★★★★★
Prentice is wonderful! He was very responsive and respectful of our scheduled time, knowledgeable, quick to fix the problem, and took his time to teach me what to watch out for and how to prevent the problem in the future! He even insisted on taking his shoes off at the door to not track in dirt and debris in our house. He was very kind, personable, and I felt very safe being home alone with him in my home. I referred to him as a gentle giant when describing him to my husband. If you are having any HVAC issues, he is your guy to fix it quickly and correctly the first time! Thank you so much Prentice!
October 2026
★★★★★
Prentice is very dependable and came within just a few hours of our call to fix our AC. He is professional and does excellent work. We have used him a few times now for HVAC repairs and will continue to do so!
October 2026
★★★★★
Ohm HVAC's services were exceptional! Information was shared with me to assist with alleviating future maintenance, all of my questions were kindly answered, I will definitely continue to reach out to them, and share my experience with others - in hopes they will patronize them as well.
October 2026
★★★★★
I had a great experience with Prentice today. He was professional, super knowledgeable, and successfully repaired my AC unit quickly. Prentice was extremely courteous, and I found his prices to be extremely reasonable compared to others I've worked with. He got straight to the point, knew exactly what was wrong, and immediately fixed it. I also learned he's launching a website by the end of this week, and I'm looking forward to checking out his extended services.