



Guardian National Security
Licensed Security Guard Services
in Southern California
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Security Services Across Los Angeles
From Calabasas to Downtown, the Westside to the Harbor, Guardian National Security has been protecting Los Angeles County properties for nearly 30 years. Whether you need a posted guard, a marked patrol vehicle, or fire watch coverage on a construction site, every Los Angeles service is BSIS-licensed, insured, and run from our local Calabasas headquarters.
Posted security guards across every part of LA. Trained under retired police officers, GPS-tracked every shift, briefed on your property before the first post. Available armed or unarmed, day or night.
Explore LA Security GuardsMarked patrol vehicles running randomized routes across LA properties. Best for large sites, multi-building campuses, and after-hours coverage where one fixed post would leave too much ground uncovered.
Explore LA Vehicle PatrolFoot, bike, and golf cart patrols moving through your property on randomized routes. Ideal for high-rises, gated communities, shopping centers, and dense LA properties where details matter as much as coverage.
Explore LA Security PatrolBSIS-licensed fire watch guards for LA construction sites, hot work projects, sprinkler outages, and fire code compliance. Trained, documented, and dispatched within hours when fire safety systems go offline.
Explore LA Fire WatchLos Angeles County Coverage
Our Los Angeles guards and patrol vehicles cover Downtown, Hollywood, the Westside, San Fernando Valley, South LA, the Eastside, the Harbor, Beverly Hills-adjacent neighborhoods, and surrounding LA County communities. Headquartered in Calabasas, dispatched live 24 hours a day, available within hours of your call.
Ready to Lock Down Your Job Site?
BSIS-licensed, GPS-tracked construction site security guards across Southern California. We will walk your job site, map the vulnerabilities a thief would target first, and quote you within 48 hours.