Knight Security has been your local, trusted Electronic Security System provider for over 30 years. We're locally owned, locally operated, and proud to be a part of your hometown community. All of our services are located right here in the Black Hills, including our Monitoring Center. Let us show you how easy it is to get peace of mind with a local, trusted Electronic Security Provider.

Commercial or Residential, we can do it all:
  • Home Security
  • Commercial Security
  • Home Automation
  • Electronic Surveillance



  • Great company! We've been with...

    Hayaki M. via yellowpages.com
    Great company! We've been with them since 2009 and we've never had a problem with their service. They fixed a small issue we had with our system very...
  • Really do good monitoring; they'd...

    Heather P. via ziplocalonline.com
    Really do good monitoring; they'd helped me cut down on false alarms but still made sure to call on suspicious alarms-I highly...

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