Bay Alarm Acquires San Diego Based Security Company, SDA Security

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Bay Alarm's recent acquisition of SDA Security, provides Bay Alarm Company with an expanded presence in the San Diego and Inland Empire Markets.

Bay Alarm, a leading provider of security solutions and alarm systems for commercial and residential clients, announced today that it has acquired SDA security; a highly successful family owned and operated alarm company in San Diego (

SDA Security has provided security services to the San Diego and Inland Empire markets for over 80 years. Founded in 1930 by Harold Eales, the company has thrived under three generations of family leadership. Throughout the past 8 decades, the Eales family has focused on building their business on the foundation of personal relationships and outstanding service.

With this purchase, Bay Alarm will expand its presence in the San Diego and Inland Empire markets. In addition to their suite of security products, Bay Alarm also offers 24/7 alarm system monitoring by their locally staffed employees. For more information on Bay Alarm’s available services, visit their website at

This acquisition ensures that both Bay Alarm and SDA customers continue to receive the same great customer service they've come to know and expect, whether they reside in Northern or Southern California.

Matt Westphal, Co-President of Bay Alarm Company said "Over 80 years of dedication to the security of the San Diego community, the Eales family has built a company that closely matches the customer and employee focused culture of Bay Alarm Company. The Westphal Family is excited to continue their mission while expanding Bay Alarm’s 30 year history in the San Diego marketplace and bringing new technologies and processes to the SDA customers."

With its focus on business security products and services, SDA Security adds strength to the existing business and residential solutions offered by Bay Alarm. This merger of two complementary companies supports Bay Alarm's commitment to ensuring that local communities are safe, protected and well educated.

"The security industry is advancing at a rapid rate." said Shandon Harbour, President of SDA Security. "As we researched how we can best prepare ourselves to continue providing cutting-edge services and products, it became clear that joining the Bay Alarm family would ensure our customers have continued access to services they need. We know that Bay Alarm would be the right choice for future growth.”

Both Bay Alarm and SDA Security share a long-time business partnership with NetOne (formerly Security Network of America), a network of independently held alarm companies across the nation with a 25-year heritage in the commercial and home security field. This existing relationship has set the foundation for a common mission of maintaining the highest standards of operating excellence.

Throughout the coming months, SDA Security will be fully integrated into the Bay Alarm organization and culture. Stay tuned for news and updates as they become available.

About Bay Alarm
Bay Alarm Company, based out of the San Francisco Bay Area, is the largest privately held alarm company in the United States. Founded in 1946 by Everett Westphal, Bay Alarm is now in its third generation of family leadership. Currently Bay Alarm’s customer base includes over 120,000 customers and 800 employees. Bay Alarm is single-mindedly focused on serving the state of California and the unique security needs of its communities. Bay Alarm maintains 14 branches throughout California, providing Burglar Alarms, Fire Alarms, CCTV, Access Control, Video Verification and Guard Patrol services.

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Eric Taylor
Bay Alarm
+1 (925) 808-4335
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