
Yankton COMMERCIAL HVAC INSTALLATION
Serving Yankton For Over 55 Years

WHO WE ARE
Rasmussen Mechanical Services has been providing professional commercial HVAC installation in Yankton, SD for over 55 years. Our team designs and installs HVAC systems that deliver long-term comfort, energy efficiency, and dependable performance for commercial and industrial facilities throughout southeastern South Dakota.
We serve businesses in Yankton, Vermillion, Hartington, Crofton, Tabor, Irene, and surrounding communities. With decades of experience in complex commercial environments, we install HVAC systems that meet performance expectations, South Dakota building codes, and long-term operational goals.
CONTACT US
Main: 712-252-4613
Email: sales@rasmech.com
Office Hours: 7:00 – 4:00pm Monday through Friday

OMMERCIAL HVAC SYSTEM INSTALLATION & REPLACEMENT
Rasmussen Mechanical Services specializes in commercial HVAC installation for Yankton businesses, including new construction, renovations, and system upgrades. Our team installs a wide range of commercial and industrial HVAC equipment, including:
Rooftop Units (RTUs)
Air Handling Units (AHUs)
Make-Up Air Units (MAUs)
Commercial Heating Systems
Chillers
Boilers
Building Automation Controls

ROOFTOP UNIT (RTU) INSTALLATION
We provide complete rooftop unit installation in Yankton for office buildings, retail spaces, warehouses, and industrial facilities. Our RTU installation services include proper system sizing, curb and structural coordination, crane planning, equipment placement, and full startup and commissioning to ensure reliable, long-term operation.
AIR HANDLING UNIT INSTALLATION
Our technicians install air handling units designed to meet specific airflow, ventilation, and humidity requirements. AHUs play a critical role in maintaining consistent indoor comfort and indoor air quality for healthcare facilities, schools, office buildings, and industrial facilities throughout Yankton.
These systems are commonly integrated with boilers, chillers, and building automation controls to support efficient system performance.
MAKE-UP AIR UNIT INSTALLATION
We install make-up air units for commercial kitchens, manufacturing facilities, and large industrial buildings in Yankton. Our team installs both direct-fired and indirect-fired systems to support exhaust systems, maintain proper building pressure, and comply with South Dakota ventilation and safety requirements.

COMMERCIAL CHILLER INSTALLATION
Rasmussen Mechanical Services provides commercial chiller installation in Yankton for facilities that rely on chilled water systems for cooling, including:
Office Buildings
Healthcare Facilities
Manufacturing Plants
Institutional and Educational Campuses
Each chiller installation is evaluated as part of the complete HVAC system to ensure proper sizing, energy efficiency, and seamless integration with pumps, air handling units, and building automation controls.
SPLIT SYSTEM & AIR CONDITIONING INSTALLATIONS
Split system and multi-zone HVAC installations provide flexible and efficient heating and cooling for commercial buildings. These systems allow independent temperature control across different areas of a facility.
Our technicians specialize in installing, maintaining, and replacing split and multi-zone systems for Yankton commercial properties, partnering with trusted HVAC manufacturers to deliver reliable, long-lasting performance.
COMMERCIAL HEATING AND COOLING SERVICES
In addition to installation, Rasmussen Mechanical Services provides full-service commercial HVAC support in Yankton, including:
HVAC repair and troubleshooting
Preventative maintenance programs
System replacements and upgrades
Equipment retrofits
24/7 emergency service
We service all major commercial HVAC equipment, including RTUs, AHUs, make-up air units, boilers, chillers, split systems, and building automation controls. Routine maintenance helps reduce downtime, improve efficiency, and extend system lifespan for Yankton businesses.

YOUR EMERGENCY REPAIR SERVICES
Rasmussen Mechanical Services is a trusted provider of commercial HVAC services in Yankton, SD, with over 55 years of experience installing, maintaining, and servicing complex HVAC systems.
Our commercial HVAC solutions focus on:
Lowering energy and operating costs
Supporting code compliance
Improving airflow and indoor air quality
Delivering consistent temperature control
Ensuring long-term system performance
Businesses throughout Yankton and southeastern South Dakota rely on our team as a long-term mechanical partner.

BUILDING AUTOMATION INTEGRATION
Modern commercial HVAC systems in Yankton benefit from building automation integration, providing centralized system control, improved energy efficiency, and enhanced indoor air quality.
Rasmussen Mechanical Services specializes in integrating HVAC equipment with advanced building automation systems (BAS) for commercial facilities.
Our technicians design and implement automation solutions that allow facility managers to monitor system performance, reduce energy usage, and optimize HVAC operations. From system integration to ongoing support, we deliver automation solutions that drive efficiency, comfort, and long-term value.
COMMERCIAL HVAC MAINTENANCE PLAN
Regular commercial HVAC maintenance is essential for ensuring optimal performance and extending the lifespan of your heating and cooling systems. Our experienced technicians provide comprehensive, scheduled maintenance services designed to improve energy efficiency, maintain proper filtration, and reduce the risk of costly repairs.
By scheduling routine maintenance with our trusted HVAC company, business owners in the Yankton area can enjoy consistent comfort in their commercial properties while protecting their HVAC equipment investment. Our dependable service helps identify unusual noises or potential issues early, allowing for fast repairs that keep your systems operating at peak performance throughout the year. We also offer all of our services in Yankton including Boiler Repair and Installation, as well as HVAC Maintenance.
SCHEDULE YOUR SERVICE TODAY!
GET THE HELP YOU NEED FOR ALL THINGS MECHANICAL