COMMERCIAL HVAC REPLACEMENT RAPID CITY
Serving The Black Hills For Over 55 Years
WHO WE ARE
We have been providing commercial HVAC replacement in Rapid City, South Dakota for more than 55 years. Our approach starts with a thorough evaluation of your existing HVAC system, allowing us to help you make informed, long-term decisions for your facility. We install and replace all makes and models of commercial heating and cooling equipment and are available 24/7 when service is needed. As a locally owned, family-run company, we employ some of the most experienced technicians in the industry to handle all aspects of your heating, ventilation, and air conditioning needs.
CONTACT US
Address:3590 Mayer Ave. Sturgis, SD 57785
Local Number:605-343-7800
Email:blackhills@rasmech.com
Office Hours: Monday – Friday: 7:00am – 4:00pm
24/7 Service Number:1-800-237-3141
COMMERCIAL HVAC EQUIPMENT WE REPLACE
Rasmussen Mechanical Services specializes in commercial HVAC replacement for aging, inefficient, or failing systems. We can replace a wide range of commercial and industrial HVAC equipment including:
ROOFTOP UNIT (RTU) INSTALLATION
We provide complete commercial rooftop unit replacement for offices, retail buildings, warehouses, and industrial facilities. Our RTU replacement services include removal of existing units, curb and structural modifications, proper system sizing, crane coordination, and full startup and commissioning to ensure dependable operation.
MAKE-UP AIR UNIT (MAU) INSTALLATION
We replace make-up air units (MAUs) serving commercial kitchens, manufacturing plants, and large industrial spaces. Make-up air units are essential components of commercial ventilation systems, helping to protect sensitive equipment from damage caused by extreme temperatures or humidity. We can install direct-fired and indirect-fired systems designed to maintain proper building pressure, support exhaust systems, and comply with ventilation and safety codes.
AIR HANDLING UNIT (AHU) INSTALLATION
We install air handling units that are engineered to meet airflow, ventilation, and humidity requirements. These systems are commonly paired with boiler, chiller, or make-up air systems.
COMMERCIAL CHILLER INSTALLATION
Our team replaces air-cooled and water-cooled chillers serving office buildings, healthcare facilities, manufacturing plants, and institutional campuses. Chiller replacements are evaluated as part of the overall HVAC system to ensure proper sizing, energy efficiency, and seamless integration with air handling units, pumps, and controls.
WHY CHOOSE US
Rasmussen Mechanical Services is Rapid City’s trusted commercial HVAC service provider with over 55 years of experience in HVAC repair, maintenance, and installation. We install all major HVAC brands and equipment—including chillers, rooftop units, air handling units, heat pumps, boilers, make-up air units and building automation systems. Our team delivers energy-efficient HVAC solutions and expert project management.
Serving Rapid City since 1970
3rd Generation Family Owned Business
24/7 Emergency Service
Most Experienced Technicians In The Industry
FAQ
When should a commercial HVAC system be replaced instead of repaired?
A commercial HVAC system should be considered for replacement when it reaches the end of its expected service life (typically 15–25 years), experiences frequent breakdowns, or requires costly repairs that no longer improve reliability. If downtime, rising repair costs, or efficiency loss are becoming recurring issues, replacement is often the more practical long-term solution.
Do you offer commercial HVAC repair and maintenance services?
Yes. In addition to HVAC replacement, we provide commercial HVAC repair and preventative maintenance for RTUs, air handling units, make-up air units, and other commercial HVAC systems. Our technicians service all major makes and models and focus on identifying issues early, improving system performance, and reducing the risk of unexpected downtime. Regular maintenance is essential to ensure the HVAC system does its job efficiently.
What Industries Do You Work With?
Our experienced team specializes in commercial HVAC installation, repair, and maintenance for a wide range of industries, including manufacturing, healthcare, food processing, schools, ethanol facilities, and commercial properties. Whether you need a new commercial HVAC unit, regular maintenance services, or emergency repairs, you can rely on us.
Why is proactive HVAC replacement better than waiting for a system failure?
Replacing a commercial HVAC system before it fails gives building owners greater control over cost, comfort, and reliability. Newer systems operate more efficiently and also eliminates many of the recurring repair issues that often come with older systems. In addition, a new HVAC system improves indoor air quality by removing years of accumulated dust, debris that can affect airflow and comfort.
Local Reviews
“Our company has been doing business with Rasmussen for 10+ years. Great reputable company. Friendly and professional staff.”
Rich Stranges– Diamond Vogel
“Rasmussen Mechanical Services goes above and beyond to ensure we keep our facilities running. We had a recent emergency breakdown to our steam systems and Rasmussen was on-site working with us to figure out a solution to get our Dining and Housing facilities back up and running with hot water.”
Jerilyn Roberts – South Dakota School Of Mines
THE RASMUSSEN DIFFERENCE
At Rasmussen Mechanical Services, our core values are rooted in delivering exceptional commercial HVAC services that keep businesses in Rapid City, South Dakota running smoothly and efficiently.
Our commitment to energy efficiency means we help businesses save money on energy bills while maintaining peak efficiency and comfort. That’s why we offer routine maintenance and commercial HVAC maintenance services designed to keep your HVAC unit operating at its best, prevent unexpected breakdowns, and extend the life of your equipment.
As a family-owned company serving the greater Black Hills area, we take pride in our reputation for reliability, expertise, and outstanding customer service. Make the right choice by hiring a professional commercial HVAC company and save money, improve comfort, and ensure your system operates reliably.
SCHEDULE YOUR SERVICE TODAY!
GET THE HELP YOU NEED FOR ALL THINGS MECHANICAL