Donohue Commercial Service

A United Mechanical Company

Companies large and small have been relying on Donohue Commercial Service since 1976. Donohue provides a full range of HVAC mechanical services to the commercial and industrial sector in construction and maintenance. Donohue is a member of the nationwide ‘Linc’ Network and is your single source mechanical contractor for designing, engineering, retrofitting, repairing and maintaining your mechanical systems.

Donohue Commercial Service provides full HVAC service with 24-hour emergency availability. We work on all makes and brands of equipment. Donohue is one of the most trusted names in the HVAC service, repair and maintenance industry.



More than 200 building owners and managers trust Donohue Commercial Service, these are just some of our happy clients:
MemMap_Cox Logo 4C 2018

Who do we serve?

Untitled design (85)




data center

Data Centers



med facility

Medical Facilities


Large companies with temp sensitive warehouse/storage

Untitled design (9)


Untitled design (10)


Untitled design (11)

Manufacturing Industries

Benefits of the Donohue Difference

Commercial HVAC Service

At Donohue Commercial Service, we specialize in preventative maintenance. Our technicians work hard to make sure that your equipment is operating at its best at all times. We offer customized service programs, and we hold ourselves accountable for short- and long-term results

We are unique in our approach: we want to form a partnership and design a Proactive Preventative Maintenance Program to minimize your HVAC failures and reduce your energy consumption. Our monthly service agreement fee ensures that you are covered for any and all HVAC issues, just like insurance.

Our tried and tested preventative maintenance system significantly reduces unplanned capital expenses such as expensive repairs or premature replacement of equipment.

We believe in taking great care of our people, both our staff and our clients. Let us give you comfort, savings, peace of mind, and more time to focus on your core business


Commercial HVAC Maintenance

Maintenance is so much more important than most people think - a good maintenance routine can extend the life of your equipment, reduce your energy bills, and save you expensive and inconvenient emergency repairs.

Our thorough routine service checks, cleanings and replacements separate us from the competition and help to keep your business running smoothly. Preventative maintenance actually reduces owning and operating costs along with energy costs, and fewer breakdowns and emergency repairs will significantly lower your operations & maintenance expenses.

Regular maintenance and repairs can improve tenant experience, save money and increase your profits for many reasons:

  • Reduced costs. For example, cleaning or replacing a filter costs a fraction of the increased energy costs of running HVAC with dirty filters.
  • Improved equipment reliability and uptime. Keeping your equipment clean and oiled will make it run better and reduce downtime, since most common causes for down time are addressed before they become an issue.
  • Enhanced building performance is a natural effect of knowing how all parts are working, so no one element is overloaded.
  • Increased energy efficiency can save thousands of dollars, and regular maintenance keeps your HVAC operating at maximum efficiency. 
  • Building comfort and air quality are two positive side effects of well maintained equipment with clean filters.

You can trust we know what we’re doing: we have been providing Professional Proactive Preventative Maintenance since 1976. We only use state of the art maintenance tools, and our team is constantly training and learning the latest on HVAC maintenance and repair.

Commercial HVAC Repair

When you acquire our services, we want you to feel secure and stress-free, which is why we have fixed monthly service contracts. If anything goes wrong with your equipment, we will take care of it at no extra cost to you. 

We guarantee results, and the best way to prove it is with our Performance Guarantee: if your equipment breaks down, we will repair or replace it at no additional expense to you.

Customer service is a priority for us, and we make sure you notice it. For example, our emergency services are available 24/7, and you will speak to a person every time you call us for service.

Our experienced, skilled and highly trained technicians will be able to give your equipment all the maintenance and diagnostics they require. If your equipment requires replacement parts, we can save you money through our parts procurement network. Since we buy some parts in volume, we get great prices on them, and we pass the savings on to you.


Services we offer

  • LINC Service Agreements
  • 24 Hour Emergency Service
  • Centrifugal Chillers
  • Absorption Chillers
  • Reciprocating Chillers
  • Packaged A/C Units
  • CFC Reclamation/Banking
  • DDC and Pneumatic Controls
  • System/Building Analysis
  • Energy Management
  • Vibration Analysis
  • Medium & Low Temp Refrigeration
  • Eddy Current Testing
  • Oil Analysis
  • Infrared Analysis
  • Air Handling Units

Contact us to get started