G&J Customized Security Systems was established in 1992. We proudly serve the Northern Maryland and Southern Pennsylvania areas, specializing in residential and commercial low-voltage needs.
G&J Customized Security Systems consistently delivers unsurpassed value to our customers by not only selling low-voltage products but also installing them personally. We serve as the owners, sales, installation and service team and we are proud to serve you.
Residential and Commercial Professionals
The G&J Difference
CALL US TODAY 410-857-0342
Security for home and business
G&J Customized Security Systems offers FREE ESTIMATES on our many low-voltage services, including....