Providing armed/unarmed private security guards and vehicle patrol services in San Mateo County for residential properties,offices buildings,construction sites, retail, special events and more.
Our services have been independently audited and evaluated by CALSAGA, the California Association of Licensed Security Agencies, Guards and Associates. First Security Services was awarded the highest professional rating of “Certified Security Services Provider” by CALSAGA and we are the only contract security company in all of California to have received such a rating.
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