Sentry Alarm Systems is a trusted and reputable brand that has been providing high-quality security solutions since 1971. As a third-generation family-owned and operated service provider, they prioritize treating each customer like a part of the Sentry family. With a commitment to training, the use of Honeywell equipment, and meticulous attention to detail, Sentry Alarm ensures that they get the job done right the first time.

Recognized as a Top 100 Security Company in the industry, Sentry Alarm Systems offers a wide range of services including security, fire alarm, fire sprinkler, video surveillance, and access control systems. They are also equipped to handle code required inspections, 24-hour UL Listed monitoring, and servicing of existing alarm systems. With offices strategically located in Monterey, Oakland, Portland, Sacramento, and Sonora, Sentry Alarm Systems caters to the life safety and private property protection needs of clients throughout Northern California, Oregon, and Washington State.

By prioritizing customer satisfaction and adhering to the three D's of the alarm industry – To Deter, Detect, and Dispatch – Sentry ensures the utmost security and peace of mind for their customers