Our mission is to create expert solutions for your unique refrigeration needs.

We are happy to serve the upper midwest region with locations in Marshall, MN, Sauk Rapids, MN and Sioux Falls, SD.

Quality Refrigeration Systems

We engineer, install and service industrial and commercial refrigeration systems for the meatpacking, poultry, dairy, beverage, bakery, cold storage industries and supermarkets. Our clients are located throughout Minnesota, the Dakotas, Iowa and Wisconsin. Our specialty is in state-of-the-art refrigeration system design and installation, but we provide so much more.

Our 85+ years of expertise in the industry translates to delivering the ultimate experience to each and every one of our customers. Safety, reliability, and energy efficiency are integrated into every system. We are proud to be a relationship-driven company and we encourage you to reach out and learn more about what we offer.

Commercial Refrigeration Services

Carlson & Stewart Refrigeration (CSR) offers a quality commercial system for every need and budget. Through our partnerships with nationwide manufacturers and wholesalers, we can install and service the best systems available at a price that enhances your bottom line.

Industrial Refrigeration Services

We specialize in ammonia refrigeration system design and installations that are safe and reliable. Because energy costs are of utmost importance, energy efficiency and resource savings are built into every system.

Preventative Maintenance Services

We offer a routine maintenance package, which means our staff becomes your staff – answering refrigeration questions, providing onsite consultation and maintenance, and assisting plant and system operators when the work exceeds their available time or expertise.

What Our Customers Are Saying

Read more about what it is like to work with us.


Manager of Plant Engineering, Dan’s Prize Inc

"Carlson & Stewart Refrigeration (CSR) is very supportive of the Dan’s Prize operation. They’ve been assisting with our refrigeration maintenance and upkeep for over 20 years and have been nothing but stellar. Their safety record is without reproach, their technical knowledge is outstanding and their team is willing to do whatever is required to keep us operating. CSR treats your facility and budget like it is their own and comes up with innovative ideas to get the job done while keeping cost savings in mind. Whenever we are in a bind, we know we can call CSR and they are on their way. I give the CSR team an A+ rating and look forward to working with them in the future."

Russ Albrecht

Projects and Services Manager, First District Association

"Carlson & Stewart and First District Association have a relationship exceeding 30 years.  They have provided maintenance, expansions and decommissioning of our original ammonia system and freon systems.  They designed, engineered, installed, expanded and continue to maintain our existing 2 ammonia over glycol systems.  Their people have held on sight training sessions for our staff many times over the years and have a very personable way to teach covering not only principal and concepts but also system-specific materials.  They are a great resource for all refrigeration needs that we very much appreciate."

Travis McDonald

McDonald's Meats Owner

"McDonald’s Meat’s has been working with Carlson & Stewart Refrigeration for more than a decade. They are one of the top refrigeration company’s in our area and their service and knowledge are at the very best. You are more than just another customer to them. From front office to service tech, they go out of their way to make sure you are satisfied as a customer!!  I know that I can trust that the job will be done right the first time."

Additional Services

Our services go beyond specializing in the areas listed above. If you are looking for additional help in these areas, contact us today!

  • Mass-Energy Balance
  • Ammonia Relief Calculations
  • Ammonia Compressor Room Ventilation Analysis
  • Ammonia Charge Calculation
  • Process and Instrumentation Diagrams (P&IDs)
  • Laser Motor Alignments
  • Refrigeration Parts Sales
  • More...
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