two rasmussen mechanical service technicians grinding a morrison tube in a large boiler.

Commercial Boiler Repair And Service

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MEET STANDARDS, SURPASS EXPECTATIONS

Rasmussen Mechanical Services’ Commercial Boiler Repair and Service Division has delivered quality services and repairs to customers for decades. We began as CG Johnson Boiler Company in 1915 and continue to provide code welding, retubing, refractory, and burner service for the institutional and industrial market. We hold R, S, H, U, and PP stamps and employ expert certified welders. This ensures we can perform an array of American Society of Mechanical Engineers (ASME) Code Services and National Board Inspection Code (NBIC) repairs.

24/7 Number: 1-800-237-3141
Email: sales@rasmech.com
Office Locations: Denver, CO, Omaha, NE, Sioux City, IA, Sturgis, SD, Gibbon, NE, Council Bluffs, IA
Office Hours – Monday – Friday: 7:00am – 4:00pm

Technician performing commercial Boiler Repair Welding

OUR COMMERCIAL BOILER SERVICES

Our team provides:

  • Boiler tube replacement and repair

  • Partial or complete water leg and stay bolt replacement

  • Tubesheet/furnace repair or replacement

  • Shell, drum, and header repair

  • Vessel nozzles and openings installation/replacement

  • ASME pressure vessel and power piping fabrication

  • Refractory repair/replacement

  • Non-destructive examination and integrity analysis

  • Heat exchanger, economizer, chiller, and non-fired vessel repair/replacement

  • Controls inspection and repair

  • Annual inspection assistance

  • Section I, IV, or VIII Alterations

  • HRSG tube repair and service

  • Boiler Parts

Technician operating an Autoflame control panel on Boiler #2 inside an industrial facility.

BURNER SERVICES

  • Safety device testing

  • Process industrial burner services

  • Flame safeguard services

  • Emissions monitoring

  • Certified Opacity Testing

  • Extensive parts inventory

  • Code compliance

  • Combustion analysis and adjustments to air-to-fuel ratios

  • Parallel positioning and ageless controls

  • O2 Trim

  • Fully metered, cross-limited combustion controls

  • Fuel conversions (natural gas, oil, propane, methane, tallow)

WE FOCUS ON YOUR SAVINGS

Our clients are our family, which means we want to see you save. Boiler/pressure vessel maintenance is pivotal in reducing waste and operating costs. With our services, you receive:

  • Reduced unscheduled downtime

  • Increased steam system efficiency

  • 24/7 Emergency response

  • Supplemental boiler operator training

  • Fully code compliant services and repairs

  • Boiler inspection assistance

Want to become a boiler expert? We have everything you need to know here!

Two Technicians making boiler repairs. Part of our commercial boiler program.

DAKOTA ETHANOL

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

LAUREL – CONCORD – COLERIDGE SCHOOLS

Rasmussen Mechanical is a key partner in our school district's efforts to maintain effective and efficient mechanical systems.

JEREMY CHRISTIANSEN - SUPERINTENDENT

HUGHES BROTHERS INC.

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

COUNCIL BLUFFS COMMUNITY SCHOOLS

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

HOWARD COUNTY MED CENTER

We get all of our help from Rasmussen. I can call on the phone and talk with somebody and they are local.

ROGER GRIMM

WIRECO

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

RIVERSIDE ELEMENTARY – OAKLAND, IA

Rasmussen does the job right the first time.

STEVE FEAUTO – MAINTENANCE SUPERVISOR

BOYSTOWN NATIONAL RESEARCH HOSPITAL – OMAHA, NE

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

KELLOGS – 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 UTILITIES PLANNER

MARS PETCARE – AURORA, 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 STYLES – UTILITY TECHNICIAN

WEST PHARMACEUTICALS – KEARNEY, NE

They do more than what’s expected and we have one contact we can call for many different services.

JOHN NIKKILA – UTILITY TECHNICIAN

RIVERSIDE LODGE – GRAND ISLAND, 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

SCHEDULE YOUR SERVICE TODAY!

GET THE HELP YOU NEED FOR ALL THINGS MECHANICAL

Boiler Repair Brochure

A boiler system is a central heating unit that uses a closed vessel to heat water to a certain temperature and circulates it throughout the building. Download our boiler repair brochure to see how we can help yours.

MORE THAN JUST COMMERCIAL BOILER REPAIR

Rasmussen Mechanical Services mobile boiler room providing temporary steam and heat for industrial facility operations during maintenance or emergency situations.

From boiler parts and boiler rentals to new installation and everything in between. We have the expertise and resources to ensure the job gets done right the first time. We commonly perform service, repair or installation on brands like:

  • ABCO

  • Warrick

  • Grundfos

  • Hoffman

  • Bell & Gossett

  • McDonnell & Miller

  • Armstrong

  • Spence

  • Kunkle

  • Apollo

  • Ashcroft

  • Miljoco

  • Watson McDaniel

  • Topog – E

  • Tasco

  • United Brass

  • Fisher

  • Sensus

  • Maxitrol

  • Dungs

  • Maxon

  • Eclipse

  • Spirax Sarco

  • And More!

Rasmussen 1000 HP Johnson Rental Boiler with Webster Burner

15 WAYS TO INCREASE BOILER EFFICIENCY

One of the easiest ways for a business to reduce operating expenses is to increase boiler efficiency. A great place to start lowering your bills is to look at how recently you performed boiler maintenance and how efficient your commercial boiler is. The boiler draws in cool air, heats it up, and sends it out the stack. A lower stack gas temperature is ideal because the higher the temperature, the more energy leaves with the flue gas

Corrosion caused by poor feed water on a steel pipe.

HOW FEED WATER AFFECTS BOILER OPERATIONS

It’s important to understand how your boiler feed water system functions, especially when trying to extend the useful life of your equipment. Low-quality boiler feed water contains impurities and gases that can damage the whole system. This will lead to a reduction in efficiency and, even worse, boiler leaks or system leaks.

Installed Lochinvar Boilers

MAXIMIZE CONDENSING BOILER EFFICIENCY

A condensing boiler is a water heating system designed to retrieve energy normally released from the boiler stack as waste. Latent heat is a significant source of energy. This means condensing boilers can potentially hold an efficiency rating of up to 98% in some cases. By comparison, a traditional boiler is generally between 70-85%.