Your Company in Good Company

Our History


UL® Listed Central Monitoring Station

 Protective Signaling Services Central Station


Providing Peace of Mind for nearly half a century

1971 Los Angeles County Sheriff’s Department Officer Joseph Chetta formed a private Alarm Company, General Security Systems (GSS) focusing on providing the community the highest standards of Alarm System protection available.

1979 Mr. Chetta retired from the Los Angeles County Sheriff’s Department after 21 years of loyal and dedicated Law Enforcement Service to concentrate on growing GSS to become one of the most respected and successful Alarm Company’s in the Industry.

1987 Mr. Chetta’s Company General Security Systems (GSS) opened its own Central Alarm Monitoring Station, providing direct monitoring for GSS clients and other local Security Alarm Companies paving the way to the superior level of service GMS provides today. 

1994 General Monitoring Services (GMS) was launched as an independent separate entity separating the Monitoring Services from the Alarm Company.

2002 Mr. Chetta decided to focus on the Central Station Alarm Monitoring business and sold his Alarm Company (GSS) to one of the Industry’s most reputable Alarm Companies allowing GSS customers continued excellent service they came to expect.

Today GMS is proud to provide our client partners and thousands of monitored locations with an exceptional experience in safety, security, and ultimately, 24/7 Peace of Mind


Whether it's Business, Industry, Goverment or Private sector requirments, GMS can always be counted upon to know exactly what is needed to provide ultimate service.

Whenever and Wherever a signal can be sent, GMS can monitor it. We do that with conventional legacy systems as well as state-of-the art video analytic services, GPS services, and Cyber Physcial Threat services to mention a few, all of which  represent the growing future of monitoring service requirments.  

And it does not stop there!

GMS maintains an exceptional working relationship with many valued strategic business partners who provide value added products and services direct to our client partners such as various Financial Services, Equipment Leasing, Communcations Solutions, Design & Engineering services and much more.