About GCS

Choosing GCS means peace of mind.

Grand Central Station was founded with the belief that you achieve success by providing customers with levels of personalized service that other monitoring companies simply cannot match.

Over 20 years later, we are proud to provide quality-driven, comprehensive Underwriter’s Laboratory monitoring services to hundreds of alarm dealers throughout the western United States. Each day we monitor more than 35,000 accounts from our secure campus facility in Hayward, California. Our business has grown, but our focus has never shifted.

We invite you to discover the difference personalized service makes here at GCS. Experience the peace of mind that your customers’ security is in good hands.