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Maass Refrigeration Service, LLC


1221 West Main Street
Watertown, WI 53094

Phone: (920) 206-9099

24 Emergency Service Call 920-206-2694

Main: (920) 206-9099 | Fax: (920) 206-9066


Website Website


Maass Refrigeration Service, LLC Logo

About us

Maass Refrigeration Service, LLC is an honest dependable Refrigeration/HVAC Company specializing in the sales, service, installation and repair of all makes and models of Commercial and Industrial Refrigeration and HVAC Equipment. We offer service contracts and maintenance agreements to ensure your equipment is always running smooth.


Maass Refrigeration Service, LLC services all types of Refrigeration systems including Walk-in Freezers and Coolers, Self Contained Refrigeration Units, Ice Machines, and Chillers. We also offer extensive Service on Commercial HVAC Roof Top Units, Make-up Air Units, and Air Handlers. We have more than 15 years of experience serving these types of equipment no matter the brand.
We service top name products including Heatcraft, Copeland, Tecumseh, Manitowoc Ice, Hoshizaki, Goodman, Lennox, Trane, Carrier, Luxaire, and GE.


  • Refrigeration Installation / Refrigeration Repair
  • Refrigeration, Heating & Air Conditioning Maintenance
  • Commercial and Industrial HVAC
  • Industrial Freeze Drying
  • LED Light Replacement for Display Cases and Reach-ins
  • ECM Motor Replacement
  • Building Automation Controls
  • Power Washing