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Commercial Rooftop Repair

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Commercial RTU Repair and Installation in St. Cloud

Rooftop HVAC units (known as “RTUs”) are excellent choices for commercial locations that want to optimize their space while keeping patrons, employees, and visitors comfortable. Additionally, these systems make it easy to zone ducts, allowing businesses and organizations to have customized control of the temperature throughout their building. Whether you are interested in installing an RTU or your existing one needs attention, turn to Air Max Heating, Air Conditioning and Refrigeration. For over a decade we have helped commercial locations of all kinds enjoy maximum comfort with our installation, repair, and maintenance services. Reach out to us today to get a free estimate. 

Common Problems with RTUs

If your RTU is showing signs of problems, contact us right away. Our technicians can work quickly to mitigate damage to it or your roof, diagnose the problem, and provide a solution that can make the issue a thing of the past. 


We can address problems with:


  • Dirty coils
  • A malfunctioning thermostat
  • Air balance
  • Refrigerant leaks
  • Excessive condensation and water damage
  • Unexpected noises coming from your unit
  • Tripped breakers or blown fuses
  • Unusual odors coming from vents 
  • Inconsistent temperatures
  • Changes in humidity
  • Unexplained rises in energy costs
  • Dirty or damaged filters

We Service the Top Brands 

At Air Max Heating, Air Conditioning and Refrigeration, we are the leading provider of RTU repairs, installation, and maintenance in St. Cloud. With over a decade of experience, we offer superior service for the top brands in the industry including Daikin, Lennox, Carrier, Mitsubishi, and Honeywell. We are also certified Trane comfort specialists. Our trained professionals can work with the various makes and models these brands manufacture. This means when you call us there is never a worry about whether we are the right contractors for the job. Not only that, but we only send experienced technicians to the work site and never industry rookies. Choosing us is sure to give you maximum value and satisfaction.

For emergency services or routine repairs, call (320) 252-5602 or contact us online.

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RTU Emergency? Call Us! 

If you suddenly find yourself without heat or air conditioning, do not hesitate to call us. No matter when you need repairs, we can work to set up a convenient time to service your RTU. We know how much these comfort systems mean to your business, as having hot or cold air can be critical for your day-to-day functions. That is why we work with speed and efficiency to get your HVAC unit up and running again, all while minimizing any possible downtime. 


There is a reason customers trust us for RTU repairs in St. Cloud. Find out more about what we have done for commercial property owners in the past by reading customer reviews

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"Professional and Friendly"

Keith and his crews are awesome people to work with. Always professional and get the job done right.

- Grant K.

"Accommodating & Friendly"

We had a mini split put in my office and not only were they accommodating, friendly, but were willing to get the job done in a timely manner very polite and communicated with me through their progress. best company and team to have do your installs and repairs than you guys from Air Max for your professionalism and care while installing my AC!!!!

- Crystal D.

"Highly Recommend"

Air Max was super helpful in answering all my questions. The guys that came out were professional and knowledgeable and they cleaned up after they were done like they weren’t even there. Highly recommended company.

- Waltz J.

"Very Impressed"

This company rocks. They are dependable, reasonable, and 24/7. I had Brandon out once, and was so impressed with the service on my AC at 10:30 pm on a Saturday night, that I request him every time now. Also referred him to friends and they were thrilled with the quality too.

- Amy B.

"Great Worksmanship"

Air Max recently installed a Mini Split air conditioner in our home. We couldn't have been more pleased with their workmanship and expertise. We would recommend Air Max and their professional services to anyone.

- Carol C.

"Thorough and Detailed"

Alex was very good. Understood the problem & spent the necessary time to ensure the cleaning was completed properly.

- Dennis O.

"Highly Recommend"

I highly recommend them! Their service, pricing and professionalism was excellent. I experienced flooding and needed my furnace checked, serviced and cleaned. I was not familiar with companies in that area so was a bit nervous but they exceeded all of my expectations. They were prompt and didn't try to add things on- in fact, they went above and beyond to assist me. I will definitely us them for other services (duct cleaning) and in the future. Kala was especially helpful in coordinating my service and responding to questions. Excellent integrity and service all around.

- Jenny C.

"Very Professional"

Brendan was great to work with. Came out early in the week and a part needed to be ordered. Got the part delivered in the early afternoon on Friday. He made a special trip out at end of day Friday to complete the job! Very professional

- Nancy S.

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Need Immediate Assistance?

Our team is ready to offer emergency service for times when your HVAC system breaks down unexpectedly. Get in contact us with us for help.

Contact Us
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Why Choose Air Max?

Benefits of Working with Our HVAC Experts

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Trane Comfort Specialists

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Fully Trained & Equipped

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Locally Owned & Operated

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