Avoid costly replacements with commercial HVAC repair

We've been providing HVAC repair for businesses throughout Oklahoma since 1976. Our team of experienced tradesmen saves businesses time and money.

Because of our quality repairs and excellent customer services, customers can avoid costly HVAC equipment replacements and retrofitting projects. Contact us to learn how we can support your business with reliable HVAC repairs.

With United Mechanical in Oklahoma City and Donohue in Tulsa, you'll have statewide support no matter where your business is located.

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What does HVAC repair involve?

HVAC systems are costly for any commercial space. From air conditioning and heating to ventilation systems, any HVAC equipment can break down and require costly repairs at any moment. When that happens, you need to get your systems back online quickly without overlooking important steps in the repair process.

United Mechanical and Donohue are the largest employer of HVAC professionals across Oklahoma, and our team is ready to repair any HVAC issues your business faces. Functioning HVAC equipment helps keep your building comfortable and operational, and our repair services can get your business up and running again quickly, without sacrificing quality.

As a member of the national network of LINC service providers, we provide repairs that meet high standards for all commercial mechanical systems. And once we have your HVAC equipment back in working order, we can provide regular maintenance that helps you avoid future HVAC breakdowns and unplanned expenses.

Our repair services

The repair teams at Donohue and United Mechanical provide quality HVAC repairs for Tulsa and OKC businesses. Working with us means you have access to a repair provider that knows how to address your HVAC failures efficiently and effectively.

We provide customers with:

  • 24-hour emergency availability, seven days a week.
  • Repairs for all makes and brands of HVAC equipment.
  • Performance guarantee, which means if anything goes wrong after a repair from United Mechanical, we repair or replace the affected equipment at no extra cost to you.

We take our commitment to excellent customer service seriously. Our skilled technicians perform diagnostics to quickly identify the problem, so we can give you an estimate of how long it will take to get your system running again. If your equipment requires replacement parts, we get discounted pricing for volume purchases via our parts procurement network that we pass on to our customers.

Repairing HVAC systems across industries

United Mechanical and Donohue provide repair services for commercial facilities in all industries, ensuring that their HVAC systems and equipment are functioning as needed and operations aren’t interrupted. United Mechanical and Donohue provides repairs for:

  • Hospitals
  • Universities
  • Data Centers
  • Banks
  • Medical Facilities
  • Temp Sensitive Warehouses/Storage
  • Offices
  • Houses of Worship
  • Manufacturing

How are repair services priced?

Repairs are priced on a per-job basis, which means they can vary significantly. When responding to emergency or routine repairs, our technicians provide customers with diagnostic results and a cost estimate as soon as possible.

Then, we get to work repairing your equipment — and with our performance guarantee, there’s no additional expense for you if something goes wrong after we’ve completed the job.

We also offer a Proactive Preventative Maintenance program, priced with a monthly fee. We recommend this service to customers after a repair because regular maintenance helps keep HVAC operational expenses lower and more predictable, which is better for your business’s long-term financial health. 

Our thorough routine service checks, cleanings, and part replacements help to keep your business open and operating, improving tenant experiences, saving your business money, and increasing your profits.


Our customer's success stories

"United Mechanical has been a pillar for us on multiple complex projects.  Regardless of the complexity or the duration we've been able to count on United Mechanical for first-class results every single time.  They truly partner with you in order to deliver the best product.  If you're considering making United Mechanical a part of your team, I promise you'll be happy with your decision."

Shawn Driver
Principal L5 Construction

Learn more about what HVAC repairs involve

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Contact us today to see how our commercial HVAC repairs can help get your commercial building up and running again.