24/7 Service

24 hours per day, 7 days per week, Grunau's Service technicians will get your commercial job done right. Grunau Service commits to our Right Choice Pledge to have the right tools, right people, and right service on your job. Grunau services all mechanical systems in Wisconsin, and provides 24/7 emergency service for fire protection and alarms in all of our locations.

Call us at 1.800.365.1920 as we've been happily servicing our customers for 365 days per year since 1920.

Capabilities

  • Repairs
  • Preventive Maintenance
  • Inspections
  • Retrofitting
  • Retro Commissioning
  • Mechanical Equipment Testing
  • Backflow Prevention Testing
  • … and more

Systems

  • Heating, Ventilation & Air Conditioning (HVAC)
  • Hot Water & Steam
  • Compressed Air
  • Plumbing
  • Water Treatment
  • Process Piping
  • Electrical
  • Temperature Controls & Building Automation Systems
  • Refrigeration
  • Fire & Smoke Detection & Suppression
  • Fire Extinguishers
  • Underground Utilities
  • … and more

Service Projects