A comprehensive list of Fenton, MO based companies offering installation, maintenance and repair of home and business security systems, CCTV & burglar alarms and video surveillance services. 
We are a full-service, security system installation and alarm monitoring company, specializing in residential and commercial applications. Our mission is to protect the St. Louis metro area from burglary and fire with our intelligent security systems, alarm monitoring center and smart automation solutions.
Kristin Gansman — ABF has been wonderful to work with especially Angie Cassidy. She by far has exceeded my expectations. I would recommend
In 1976, Primary Systems was founded in St. Louis, MO as a uniquely qualified company to provide for the design installation and maintenance of Life Safety systems. For over 40 years, Primary Systems has provided customized and comprehensive solutions within the greater St. Louis, Southern & Central Illinois Healthcare and K-12 Education markets.