Welcome to A-1 Security

A-1 Security Systems, LLC

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  • Local Company!

    Local Service!


    A-1 Security provides an exceptional level of security that includes protection against intrusion, fire, carbon monoxide, water, and temperature. 

    When a sensor is triggered automatically, or manually at the touch of a button, a signal is sent directly to a 24 hour FM approved Monitoring center that is local in the Denver area.  Our centers are fully staffed around the clock and trained security professionals are ready to handle any emergency.

    Insurance companies recognize the value of increased personal and property safety and offer discounts between 10 & 20% on Homeowners Insurance.

    What's Important to you....

    • Local Company! Local Service!
    • 3rd Generation Security Company
    • A comprehensive knowledge of local codes & authorities
    • Central monitoring in Denver with 2 additional redundant stations
    • An impressive list of satisfied residential customers
    • Complete spectrum of services with passion for excellence


    A-1 Security Residential Special
    Only $199

    • 2 door sensors
    • 1 motion sensor
    • 1 keypad
    • 1 control panel
    • 1 siren
    • 1 back-up battery
    • $30.00/month monitoring

    Copyright © 2009 A-1 Security. All Rights Reserved