Access Control System Services

Locksmith in Overland, MO – Serving St. Louis & St. Charles Counties

Keyless Entry Solutions

Managing access to your property shouldn’t be complicated. At AA Key and Lock Services, we make it simple with custom access control systems that replace the hassle of physical keys with secure, user-friendly entry solutions.


 Whether for your home, office, or retail space, our systems give you complete control over who enters—without the risks of lost keys or unauthorized copies.

  • Residential Access Control

    Upgrade your home security with modern systems that make entry easier for your family while preventing unauthorized access. Options include PIN code systems, keypads, and mobile app-based entry.

  • Commercial & Corporate Solutions

    Protect your employees, customers, and property with scalable systems tailored to your business. We install:


    • RFID keycard & key fob systems
    • Mobile app & cloud-based access controls
    • PIN & keypad entry
    • Biometric access (fingerprint, retina scanners)
    • Time-based access permissions

  • Installation & Maintenance

    Our certified locksmiths provide professional installation, setup, and long-term support for all access control systems. We also offer maintenance and upgrades to keep your system running smoothly.

Person's hand entering code on a keypad mounted on a textured wall, near a car's bumper.
Hand swipes key card on hotel door lock; green lights illuminate.
Safe open with wallet, watch, and gold chain inside.

Where Access Control Systems Make the Difference

We provide solutions for:


  • Homes & rental properties
  • Corporate offices & co-working spaces
  • Commercial buildings & warehouses
  • Retail stores & restaurants
  • Healthcare & educational institutions