"Serving Texans for over 25 years!"

Whether it's fire or burglar alarm system, installation and monitoring, American Security Devices is a one stop company for all your security needs. Founded in 1988, ASD has grown to service over 300 cities in Texas.

Our dedication to customer satisfaction has established ASD's reputation as being one of the most respected alarm companies in Texas.


American Security Devices is a leader in providing comprehensive security solutions for businesses.

  • We protect:
  • Large and small businesses
  • Retail and restaurant chains
  • Industrial buildings and government facilities
  • We provide:
  • 24-hour monitoring and live phone support
  • Custom packages to address all aspects of your security
  • Cost-effectiveness, dependability and timely response you expect from your one stop security vendor
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Our state-of-the-art security solutions keep your home and family safe.

American Security Devices, Security Control Equipment & System Monitors, Richardson, TX
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What customers say..

When my family and I set out to find a security company for our home we were extremely nervous. This is a huge step for us we had never had an security alarm before. We had to feel 100% comfortable with the overall company and with the representatives that we were working with. When we called American Security Devices and set up an appointment to get an estimate the representative made us feel so comfortable and even recommended us to think about options other than the ones we were calling on. When the technician showed up at our home he was very professional and polite.

Thanks, American Security Devices!

Jennifer Leff
Plano, Texas