Providing Quality Electronic Security and Life Safety Systems Since 1974

Welcome to Security On-Line Systems

Security On-Line Systems was founded in 1974. We provide top quality residential, commercial, industrial, and institutional electronic security and related systems. We take an engineered system approach verses a sales approach and can handle the more unusual, complex, and large scale designs. If you have a security or life safety issue and you think you need a top quality electronic system or service to help solve your problem, give us a call. We custom design all of our systems to meet our customers’ needs, reduce their risk and provide a top quality, easy to use, low maintenance solutions. We also help to find problems in existing systems and provide a better solution.

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Professional Affiliations

AFAA, ASIS, BBB, ICC, IQ Certified, NFPA, NICET, Philadelphia Fire Department Historical Association, SFPE. View all associations and their links.

Locations We Serve

Proudly serving the Delaware Valley since 1974, including Montgomery, Bucks, Chester, Delaware, and Philadelphia Counties. For customers with multiple locations we serve West to York, PA North to the Poconos, and East to the Jersey Shore. View all locations we serve.