
SIOUX CITY BOILER INSTALLATION
Proudly Serving SIOUX CITY For Over 55 Years

WHO WE ARE
Rasmussen Mechanical’s boiler department has been serving Sioux City, IA for over 55 years. We provide boiler installation, repair, and maintenance for a wide range of equipment. Our team works on all makes and models of boilers, from high-pressure steam systems to low-pressure hot water boilers. No matter the size or complexity of your system, our Sioux City team has the expertise to handle it. We are your one stop shop for all things steam.
CONTACT US
24/7 Service Number: 1-800-237-3141
Local Number: (712)-252-4613
Email: sales@rasmech.com
Address: 2425 East 4th Street Sioux City, IA 51101
Office Hours: Monday – Friday: 7:00am – 4:00pm

BOILER SERVICES OFFERED
- New Boiler Installation
- Boiler Repair and Service
- Boiler Maintenance Plans & Inspection
- Boiler Burner Service
- Boiler Room Drawings
- Emergency Boiler Rentals
- Combustion Tuning
- HVAC and Water Heater Service

WHY CHOOSE US FOR YOUR BOILER NEEDS IN SIOUX CITY?
By covering a broad range of mechanical services in-house, our team can provide a true turnkey installation from start to finish for your Boiler Room. We offer free estimates for new boiler installations, ensuring transparent pricing before any work begins.
We make it easy for facilities to request a quote or schedule boiler service, and our team is dedicated to helping businesses determine the right solution for their boiler needs. From evaluation and repair to full replacement, we provide expert guidance every step of the way.
Serving Sioux City since 1970
3rd Generation Family-Owned Business
24/7 Emergency Service
Most Experienced Technicians in the Industry
LOCAL EXPERIENCE SERVING SIOUX CITY
We’ve become a trusted provider in Sioux City by delivering consistent, reliable service to commercial and industrial facilities throughout the area. Our technicians understand the boiler systems commonly found in Sioux City buildings and facilities, and we design solutions that meet local operational, efficiency, and compliance needs.
When it comes to boiler repair and service in Sioux City our company stands out for its commitment to quality workmanship and dependable results. Our technicians bring years of hands-on experience to every job, ensuring your heating system operates safely and at peak performance—especially during Iowa’s colder months.

SIOUX CITY BOILER INSTALLATION FAQS
Can you determine if our boiler can be repaired before replacing it?
Yes. We are licensed to perform boiler repair in Iowa and hold R, S, H, U, and PP stamps, allowing us to perform a wide range of pressure vessel repairs. Our technicians are equipped to inspect, clean, repair, and replace boiler components as needed.
When possible, we prioritize boiler repair before recommending replacement. We provide efficient service for facilities throughout the Sioux City metro area, offering everything from routine maintenance and minor repairs to full boiler overhauls when necessary.
Can you keep us operational while you replace our boiler?
Yes. With our emergency rentals, you don’t have to worry about losing heat or steam during a boiler replacement. We offer a variety of rental boilers to match your system requirements and ensure continuity for your central heating operation.
Our team handles everything from delivery to setup to keep your facility online while your new boiler is installed.

What should we expect after a new boiler is installed?
Once your boiler is installed, our team performs a full system startup and verification to ensure proper operation of your heating and hot water systems. We review performance, safety controls, and operating requirements, then outline recommended boiler service intervals to keep the system running reliably.
Every project is completed by licensed professionals and documented to meet all applicable code and operational requirements.
Do you provide ongoing boiler service and repair after installation?
Yes. We offer complete boiler service and repair for commercial and industrial facilities after insertion. Our professional technicians handle routine maintenance, inspections, and emergency repairs to support consistent heating and hot water performance. We offer preventive maintenance plans to keep your boiler running and to prevent any leaks or unexpected failures.
Whether it’s a small adjustment or a larger service job, our team ensures your boiler continues operating efficiently and safely to prevent costly downtime.
Are you licensed to handle commercial boiler repair and replacement projects in Sioux City?
Yes. Rasmussen Mechanical Services is fully licensed to perform boiler repair, replacement, and installation in Iowa. We meet all state and local requirements and hold the proper certifications to manage complex boiler sites.
From system evaluations to final startup, our professional team ensures every repair or replacement project is completed safely, compliantly, and to the highest industry standards.

BOILER EQUIPMENT
Boiler equipment plays a critical role in delivering reliable heating and hot water for commercial and industrial facilities. From boilers and burners to controls, pumps, gaskets, valves, and safety devices, each component must work together to ensure efficient operation and dependable performance. Properly selected, installed, and maintained equipment helps improve system efficiency, reduce downtime, and extend the life of your heating system—making it an essential investment for any facility that relies on consistent heat. Our parts department offers over 20,000 different boiler parts with all sorts of boiler products such as gauge glasses, valve seats, and gaskets. No matter the boiler and burner brand and model, we will help make the right selection for you to minimize downtime.
BOILER RENTALS
When your boiler system goes down or your facility needs temporary heat or steam, our boiler rentals provide a fast, reliable solution. We offer flexible rental options for commercial and industrial applications, with quick delivery, professional setup, and 24/7 support to keep your operation running without interruption. Whether it’s an emergency outage, planned maintenance, or a system upgrade, our boiler rentals deliver dependable heating when you need it most. Our rental department will help you make the correct boiler selection whether its short term or for the long haul.
Local Reviews

“ Our Jobs on Saturday were executed very nicely and successfully. Their team did a great job!”
Thomas Gottschalk – WestRock Corrugating Division
“As always Rasmussen pulls through with the work they do for our company. We highly recommend their service for your needs. Great guys to work with!”
Simon Topete – Smithfield Packaged Meats