Commercial HVAC Maintenance Sioux City
Preventive Maintenance for Reliable and Efficient HVAC Systems
HVAC MAINTENANCE SPECIALISTS
For over 55 years, Rasmussen Mechanical Services has provided professional commercial HVAC maintenance in Sioux City, Iowa. We help building owners, facility managers, and operations teams reduce downtime, control energy costs, and extend equipment life. Our preventive maintenance programs are designed specifically for commercial and industrial HVAC systems operating in Iowa’s extreme seasonal conditions.
From rooftop units and air handlers to boilers, chillers, and make-up air units, our local Sioux City team keeps critical systems running safely and efficiently year-round.
CONTACT US
Location: 2425 East 4th Street Sioux City, IA 51101
Main: 712-252-4613
24/7 Service Number: 1-800-237-3141
Email: sales@rasmech.com
Office Hours: 7:00 – 4:00pm Monday through Friday
OUR COMMERCIAL HVAC MAINTENANCE SERVICES
Inspection and cleaning of coils, burners, and heat exchangers
Airflow, temperature, and control verification
Belt, motor, and bearing inspection
Electrical component testing and tightening
Refrigerant level checks and leak detection
Filter replacement and air quality evaluation
Boiler and hydronic system inspections
Documentation and service reporting
Installation and repair of commercial HVAC systems and cooling systems
EQUIPMENT WE MAINTAIN
Rooftop HVAC units (RTUs)
Boilers and burners
Chillers and cooling towers
Make-up air units (MAUs)
Air handlers and VAV systems
Heat pumps and split systems
Building automation and temperature controls
PREVENTATIVE MAINTENANCE PROGRAMS BUILT FOR YOUR FACILITY
Our commercial HVAC maintenance agreements in Sioux City are designed around predictability and performance. We work with you to establish service intervals that align with your business hours, occupancy demands, and critical equipment risk, ensuring long term reliability and excellent customer service.
Maintenance agreements help reduce emergency service calls, smooth annual maintenance budgets, and provide consistent system performance throughout the year. Regular, planned maintenance not only ensures reliability but also extends the useful life of your commercial heating and cooling equipment. You’ll receive clear service documentation and recommendations so you can plan repairs or replacements proactively—not reactively.
Local Reviews
“Rasmussen Mech. is a great company to work with, always on time with great service. They are our go to for boiler , HVAC , air compressor’s and any other needs we have, I would highly recommend to anybody needed their services.”
David Knight – Cintas Corporation
"They were able to solve several problems that other companies have not been able to."
Ross Wortman – Milk Specialities
IMPORTANCE OF ENERGY EFFICIENCY
Energy efficiency is crucial for businesses aiming to reduce operational costs and promote sustainability. HVAC systems often consume the most energy in commercial buildings, making regular maintenance vital.
Routine commercial HVAC maintenance in Sioux City ensures heating, cooling, and ventilation systems run at peak efficiency, lowering utility bills and environmental impact. Our expert contractors assess equipment, identify inefficiencies, and recommend energy-efficient upgrades or replacements.
High-efficiency HVAC systems improve indoor air quality, temperature control, and occupant comfort, supporting productivity year-round. Investing in modern HVAC technology and advanced controls enhances performance and reduces long-term repair costs.
WHY CHOOSE RASMUSSEN MECHANICAL SERVICES
If you’re ready to improve your building’s energy efficiency, our Sioux City commercial HVAC team offers free estimates to evaluate your current system and maintenance needs.
Local Sioux City HVAC technicians with decades of experience
Over 55 years serving commercial and industrial facilities
Factory-trained, safety-focused professionals
24/7 emergency service availability
Experience across healthcare, education, manufacturing, retail, and municipal facilities
We don’t just maintain HVAC equipment—we help protect your operation.
COMMERCIAL HVAC MAINTENANCE IN SIOUX CITY YOU CAN RELY ON
If you’re looking for dependable commercial HVAC maintenance in Sioux City, Rasmussen Mechanical Services is ready to help. Whether you need a new maintenance agreement or want a second opinion on your current program, our experienced technicians will evaluate your air conditioning system, heating, ventilation, and cooling systems to recommend a customized plan that fits your facility’s unique needs. We specialize in maintaining rooftop units, air handling units, make-up air units, boilers, chillers, and other commercial HVAC equipment, ensuring seamless integration with your building’s controls and compliance with local building codes. Our focus on system optimization and energy efficiency helps reduce energy consumption and lower operating costs while improving indoor air quality and temperature control throughout your commercial or industrial facility in the Sioux City area, including Dakota Dunes and Sergeant Bluff.
HOW OFTEN SHOULD COMMERCIAL HVAC SYSTEMS BE SERVICES?
Most commercial HVAC systems need professional maintenance at least twice a year, usually in spring and fall. Facilities like healthcare centers, manufacturing plants, and high-occupancy buildings may require more frequent service.
Regular maintenance preserves warranties, boosts energy efficiency, and prevents costly breakdowns. Seasonal checkups help:
Reduce mid-season failures
Improve energy use
Spot worn parts early
Maintain comfort and indoor air quality
Our Sioux City team also offers commercial HVAC installation, air conditioning installation, and system optimization. We service rooftop units, air handlers, boilers, chillers, and chilled water systems, ensuring proper integration with ductwork and exhaust systems.
SCHEDULE YOUR SERVICE TODAY!
GET THE HELP YOU NEED FOR ALL THINGS MECHANICAL