Exhaust Fan Repair

Unparalleled Commercial and Industrial Exhaust Fan Repair

Expert Technicians And Prompt Service

For over 50 years,  Rasmussen Mechanical Services has been serving the industrial and commercial community in the Midwest. We specialize in servicing everything from small kitchen exhaust systems to complex industrial systems. We can perform maintenance, service and repairs on all brands of blowers, fans and motors. Our expert technicians can diagnoses fan bearing failure, worn belts and motor failure quickly so you know what you are up against.  We commonly repair:

  • Roof Mounted Exhaust Fans
  • Sidewall Exhaust Fans
  • Kitchen Ventilation Systems
  • Warehouse Exhaust Fans
  • Industrial Plant Exhaust Fans
  • And More!

Have questions? Fill out the form on the right and let us know what you are looking for and we will have someone on our exhaust repair team get back with you.

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With over 200 technicians, 7 location and 24/7 service, you can be sure we will get you taken care of fast. Make Rasmussen Mechanical your exhaust fan repair services provider. We provide:

  • Large Commercial and Industrial Exhaust Parts Inventory
  • Ground-Up Design and Installation
  • Preventative Maintenance Plans
  • Exhaust Fan Troubleshooting
  • Emergency Repairs
  • Energy Audits

Safety Is Our Business

Exhaust systems keep your staff and building safe from dangerous conditions. In many commercial applications, if systems are neglected it can result in a fire safety issue. When exhaust systems are used to remove harmful fumes, the results can be deadly. Our technicians can get your system back up and running and also ensure it is operating effectively. The five most common issues when exhaust fans fail are:

  • Fan Bearing Failure
  • Worn or Broken Belts
  • Motor Failure
  • Lack Of Lubrication
  • Moisture Buildup
  • Power Failure

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The RasMech Difference

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Industrial and Commercial HVAC Service Tech

Rasmussen Mechanical Services is an industry leader; a full-service, one-stop-shop for all things mechanical. With 10 departments, 7 locations, and over 200 employees, Rasmussen Mechanical has wide-ranging expertise in commercial, industrial, and institutional mechanical equipment.

We are proud to be a preferred mechanical service company in Industrial Air Services, Boiler Repair, Industrial Burner Services, Mechanical Construction, HVAC, Rental Equipment and more!

If you are looking for a mechanical contractor that will get the job done right the first time and stand behind their work, you are in the right place.

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More Than Just Exhaust Fan Repair

With over 10,000 parts in stock and a wide ranging knowledge in the HVAC systems industry, we are designed to solve problems fast.  That is why we have become the Midwest’s go to mechanical contractor for all things mechanical. We have the expertise to maintain and repair furnaces, heat pumps, boilers, and geothermal heating solutions and more. From fans to air conditioning maintenance and AC replacement, we are your single source service provider.  

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7 Locations Across The Midwest

Map of our locations

The Latest From Our Blog

Close up of a dirty blower motor with dust on wheel.


Exhaust fan issues commonly present themselves as loud noises while operating, complaints of spaces being to hot or sudden suction drops. Ensuring your exhaust fan is working properly allows fumes to leave the area and ensure the safety of those in the space.

Installed Roof Top Unit


Performing maintenance on your rooftop unit is important. Use these quarterly, and semi-annual and annul maintenance checks to ensure your unit is in good shape and check out our parts list so you can you get by in a pinch.

Preventative Maintenance Program | RasMech


Building controls play a huge role in your facility’s overall health and equipment performance. In this article we break down control capabilities and how they can be used in the real world. Alarming is one capability of controls. This allows you to be alerted via audible noise, text message or email when something goes wrong.