Rooftop Unit Services

Experts In Installation, Maintenance and Repair

The Rooftop Unit Experts

For over 50 years we have been installing, maintaining and refurbishing rooftop units across the Midwestern United States. With 7 locations, and over 200 employees, Rasmussen Mechanical has wide-ranging expertise in commercial and industrial RTUs. Our Rooftop Unit solutions include:

-Equipment Sizing and New Installation

-Refurbishment, Retrofits and Repair

– Inspection and Compliance Testing

– Process Piping And Pump Sizing

– Maintenance Agreements

– Parts and Filters

We Can Help!

YOUR SINGLE SOURCE FOR SERVICE, PARTS AND INSTALLATION

Our heating and cooling professionals are factory-trained experts who understand the intricacies of engineering and service work. Our HVAC Services division can provide timely and professional guidance both to you and your company. With a commercial and industrial department, their is no job too big or too small for our team.

24/7 Emergency Services Available and Technical Support
Industrial and Commercial Maintenance Programs
Expert Service, Repair and Retrofits
Ground Up Design and Installation
Dedicated Project Managers
Over 10,000 Parts In Stock
Reliable Communication
Full System Audits

Call The Experts Today At

1-800-237-3141

Rooftop Unit Maintenance

By regularly maintaining your RTU you can extend the life of your equipment and reduce energy use. Proper rooftop unit maintenance also ensures your system effectively regulate air quality, temperature and humidity in your facility. With over 50 years in business we have worked at locations ranging from government buildings and manufacturing plants to mining companies and medical facilities. Some common rooftop unit maintenance tasks include:

◉ Examine and tighten all electrical components and record operating amps

◉ Examine control set points, air dampers, contactors, refrigerant charge

◉ Clean coils, drain pan, fans, housings and change filters and belts

◉ Lubricate motor bearings and fan bearings

◉ Check temperature split across coil

◉ Inspect damper linkages

◉ Examine all safety controls

◉ Inspect economizer

The Rasmussen Mechanical Difference

At Rasmussen Mechanical we committed to providing an exceptional customer experience. We strive to build a lasting partnership with you and your company. As a one stop shop for all of your mechanical equipment needs we can ensure all components of your facility are operating efficiently and safely.

Rasmussen became my “one stop shop” for ALL my boiler needs. All I had to do was call and explain what was going on and then sit back. Parts were ordered in a timely fashion and Techs arrived when they said they would. Work was always done quickly and second to none! Great feeling knowing I have a company that has my back and has proven it over and over for the past 21 years.
Dail Dailing
Utilities Manager, Dakota Ethanol
We needed (help with) mechanical projects; welding, boiler, steam, condensate, compressed air, in different areas around our plant. Rasmussen Mechanical Services helped us evaluate our options and save us a lot of time and money to get back on line – ASAP.
Matt Stryson
Plant Engineer, Hughes Brothers Inc.
I wouldn’t recommend anyone else… We had issues that other technicians couldn't get to the bottom of so Rasmussen came in and did the repair work and followed up with preventive maintenance.
Pete McNeal
Council Bluffs Community School District
We get all of our help from Rasmussen. I can call on the phone and talk with somebody and they are local.
Roger Grimm
Howard County Med Center
Rasmussen Mechanical is a key partner in our school district's efforts to maintain effective and efficient mechanical systems.
Jeremy Christiansen
Superintendent, Laurel – Concord – Coleridge Schools
You were by far the best outside contracting crew we have ever had the opportunity to work with. The knowledge and expertise was superior. Your guys did an outstanding job replacing our boiler's burners.
James Rucker
Maintenance Supervisor, WireCo
Rasmussen does the job right the first time.
Steve Feauto
Maintenance Custodial Supervisor, Riverside Elementary, Oakland, IA
I’ve worked in facilities all my life, for 35 years. I would recommend Rasmussen Mechanical because of their outstanding service and reliability... If my boilers break down I know who I’m going to call and who’s going to show up.
David McAtee
Director of Operations, Boystown National Research Hospital, Omaha, NE
I would recommend them to work with other people just based on the quality and craftsmanship of their work. We went from 75%-80% efficient to 92%-94% efficient. A 12%-15% gas savings for the plant.
Conrad Baldwin
Facilities Utility Planner, Kelloggs, Omaha, NE
They’ve done a tremendous job for us. Not only are they there to do a job, but they can break it down to layman’s terms, so that as an operator, I can practice what they teach me. We’ve learned from their experience so it’s kind of a win-win for all of us.
Robert Stiles
Utility Technician, Mars Petcare, Aurora, NE
They do more than what’s expected and we have one contact we can call for many different services.
John Nikkila
Utility Technician, West Pharmaceuticals, Kearney, NE
After the first boiler, we were so pleased with their service and quality that the second one was a no brainer.
Bruce Gregersen
Utility Technician, Riverside Lodge, Grand Island, NE

Let’s Talk!

1-800-237-3141

We Can Help!

Rooftop Unit Installation

Let the experts at Rasmussen Mechanical help with your Rooftop Unit replacement. We can perform the demolition and installation of new RTU. Installation will vary depending on size and type but here are a few common installation practices:

• System Evaluation And Appropriate Rooftop Unit Selection

• Site Prep And Removal Of Existing RTU

• Place RTU Correctly On Foundation

• Install System Piping

• Perform System Start-Up

Call The Experts Today At

1-800-237-3141

Check Out Our Latest HVAC Blog Articles

Managing Cooling Tower Water Flow

We have encouraged a number of facilities to let us examine the flow rates on their cooling towers units. This way we can see if we can improve overall efficiency. Fortunately and unfortunately for facilities, we have a high success rate at finding issues. We often find some zones are overflowing, some zones are under flowing and air side velocities are all out-of-whack.

Air Handling Unit Maintenance That Gets Results

Routine AHU cleaning not only extends the life of equipment but reduces operating costs, downtime costs and troubleshooting costs. It helps mitigate the majority of these expenses because the issues are caught ahead of time.

Rooftop Unit Maintenance Checklist

Performing maintenance on your rooftop unit is important. Use these quarterly, semi-annual and annul maintenance checks to ensure your unit is in good shape. Also use our back-up parts checklist to ensure you are ready should a component fail.