COMMERCIAL HVAC REPLACEMENT Sioux City
Serving SIoux City For Over 55 Years
WHO WE ARE
Rasmussen Mechanical Services has been performing commercial HVAC replacement in Sioux City for over 55 years. Our team specializes in evaluating aging or underperforming HVAC systems and helping building owners and facility managers make informed decisions that improve long-term reliability, comfort, and efficiency. We have been providing excellent customer service to Sioux City, Dakota Dunes, Sergeant Bluff, Sioux Falls, and all the other surrounding areas for over 55 years.
We install all makes and models of commercial heating and cooling equipment and are available 24/7 to respond when downtime isn’t an option. From initial system evaluation through final startup and commissioning, our technicians deliver dependable, code-compliant solutions for facilities of all sizes.
CONTACT US
24/7 Service Number: 1-800-237-3141
Local Number: 1-712-252-4613
Email: sales@rasmech.com
Address: 2425 East 4th Street Sioux City, IA 51101
Office Hours: Monday – Friday: 7:00am – 4:00pm
COMMERCIAL HVAC SYSTEM INSTALLATION & REPLACEMENT
Rasmussen Mechanical Services specializes in commercial HVAC replacement for aging, inefficient, or failing systems. We replace a wide range of commercial and industrial HVAC equipment, including:
Make-Up Air Units
ROOFTOP UNIT (RTU) INSTALLATION
We provide complete commercial rooftop unit replacement for offices, retail buildings, warehouses, and industrial facilities throughout the Sioux City area. Our RTU installation services include removal of existing equipment, curb and structural modifications, proper system sizing, crane coordination, and full startup and commissioning to ensure dependable operation.
AIR HANDLING UNIT (AHU) INSTALLATION
Our team installs air handling units designed to meet specific airflow, ventilation, and humidity requirements. AHUs are commonly integrated with boilers, chillers, and make-up air systems and play a critical role in maintaining consistent indoor comfort and indoor air quality.
MAKE-UP AIR UNIT (MAU) INSTALLATION
We replace make-up air units serving commercial kitchens, manufacturing plants, and large industrial spaces. Our technicians install both direct-fired and indirect-fired systems designed to maintain proper building pressure, support exhaust systems, and comply with current ventilation and safety codes.
COMMERCIAL CHILLER INSTALLATION
We provide commercial chiller replacement for facilities that rely on chilled water systems for cooling. Our team replaces both air-cooled and water-cooled chillers serving office buildings, healthcare facilities, manufacturing plants, and institutional campuses.
Each chiller replacement is evaluated as part of the overall HVAC system to ensure proper sizing, energy efficiency, and seamless integration with air handling units, pumps, and building controls.
WHY CHOOSE US FOR COMMERCIAL HVAC SERVICES
Rasmussen Mechanical Services is Sioux City’s trusted commercial HVAC contractor, with more than 55 years of experience in HVAC repair, maintenance, and installation. We install and service all major HVAC brands and equipment, including rooftop units, air handling units, chillers, boilers, make-up air units, and building automation systems.
Our team delivers energy-efficient solutions supported by experienced project management and dependable service.
Serving Sioux City and the surrounding area since 1970
3rd-generation family-owned business
24/7 emergency commercial HVAC service
Highly experienced technicians
HEATING AND COOLING FAQs
What does air conditioning installation involve for a commercial building?
Air conditioning installs typically includes evaluating the existing equipment, properly sizing the new system, removing old units, installing new components, and completing startup and commissioning. A properly installed air conditioning system ensures reliable performance, improved comfort, and long-term energy efficiency.
Do you install and replace heat pumps for commercial facilities?
Yes. We install and replace commercial heat pumps for a variety of building types. Heat pumps provide both heating and cooling from a single system and are often used in offices, retail spaces, and light industrial facilities where energy efficiency and year-round comfort are priorities.
How do I know when my system needs to be replaced?
An air conditioning system may need replacement if it is experiencing frequent breakdowns, rising energy costs, inconsistent temperatures, or reduced cooling capacity. Older systems may also struggle to meet current efficiency standards, making replacement a cost-effective long-term solution.
Can a new air conditioning installation improve energy efficiency?
Yes. New instals can significantly improve efficiency by using modern equipment designed to reduce energy consumption while delivering consistent cooling. Upgrading an outdated system often results in lower operating costs and better temperature control.
LOCAL REVIEWS
“As always Rasmussen pulls through with the great work they do for our company. We highly recommend their service for your needs. Great guys to work with!”
Simon Topete – Smithfield Packaged Meats
“Rasmussen is our go to company for all of our commercial hvac and boiler needs. Nothing but the best service and support.”
Matt Dewall – JBS USA
SCHEDULE YOUR SERVICE TODAY!
GET THE HELP YOU NEED FOR ALL THINGS MECHANICAL