24/7 Service
24 hours per day, 7 days per week, Grunau’s Service technicians will get your commercial job done right. Grunau Service is committed to have the right tools, right people, and right service on your job. Grunau services all types of mechanical systems for SE Wisconsin commercial and industrial facilities.
Call us at 800.365.1920 as we’ve been happily servicing our customers for 365 days per year since 1920.
Capabilities & Systems
- Repairs
- Preventive Maintenance
- Inspections
- Retrofitting
- Retro Commissioning
- Mechanical Equipment Testing
- Backflow Prevention Testing
- Medical Gas Inspections & Repair
- Heating, Ventilation & Air Conditioning (HVAC)
- Hot Water & Steam
- Compressed Air
- Plumbing
- Water Treatment
- Process Piping
- Electrical
- Temperature Controls & Building Automation Systems
- Refrigeration
- Underground Utilities
- … and more
Service Projects
