Rinderle's Core 4

What are the Core 4?Over time, we’ve taken note of the most effective areas to make upgrades and perform preventive measures in your facility. We use our Core 4 System to focus on these areas as we work to provide the highest long-term value for our clients.
Safety/Protect your people
  • Regular Inspections
  • Preventive Maintenance
  • Photo eyes/reversing edges/sensors/soft bottoms
  • Code regulation upgrades
  • Annual fire door testing
  • Motion detectors/loops
Security/Prevent theft & loss
  • Heavy duty locking devices
  • Security gates & grilles
  • Electronic monitoring
  • Regular inspections/preventive maintenance
  • Ballistic & security doors
  • Hard panel high speed doors
Performance/Improve your production
  • High performance doors (up to 100"/sec)
  • Specifying correct products for application
  • High cycle components
  • Breakaway bottom bars
  • Automatic operation
  • Making the most of your equipment
Energy/Create an efficient environment
  • Thermal efficient products
  • WeatherSeals to weatherize your facility
  • Quick open/close
  • Remote activation
  • Bug & security screens
  • Saving your energy with the right door service partner

For more information, or to schedule a consultation call or visit, please contact us!


Great install. The guys were awesome. Great to work with and went the extra mile. Put the finishing touch on to make it all look good!— Don, Condominium Complex
Serving Southeast
Wisconsin Since 1983