Guarding Your Assets with Unmatched Security Services
Comprehensive Security for Construction Sites
Guardian Security Agency provides reliable and professional security services to protect your construction sites in Concord, California. We ensure the safety and security of your valuable assets and personnel around the clock with our comprehensive range of offerings.
Our Exceptional Security Services
Our Professional Security Team

How Do Security Guards Prevent Theft on a Construction Site?
Visible, dedicated security officers are one of the most reliable ways to deter theft before it happens. Active construction sites throughout Contra Costa County carry significant risk overnight and on weekends, when workers are off-site and perimeters are most vulnerable. Copper wiring, generators, fuel tanks, and power tools are common targets for organized theft crews.
Our unarmed construction site security services address this through layered, physical deterrence:
- On-site guards maintain a consistent, visible presence that discourages unauthorized entry.
- Scheduled vehicle patrols cover the full perimeter during overnight hours, reducing blind spots.
- Remote guard video surveillance monitors your existing camera system or our own equipment, with a patrol officer dispatched to any detected incident or law enforcement contacted when necessary.
- Access control management ensures only authorized personnel, subcontractors, and delivery vehicles enter or exit the site, with activity logged throughout each shift.
- Customized security plans are built around your site's specific layout, construction phase, and risk profile.
What Is Fire Watch Security and When Is It Required?
Fire watch security means placing a trained guard on-site to continuously monitor for fire hazards when fire protection systems are offline or when hot work is underway. Under California Code of Regulations, Title 8, Section 4848, a fire watch is required whenever welding, cutting, or brazing creates a realistic risk of igniting nearby combustibles. Because many active construction sites in Pleasant Hill and across Contra Costa County operate without fully installed fire suppression systems, this requirement applies more often than many contractors expect.
Guards must remain on-site during all hot work and for a minimum of 30 minutes after work stops to identify smoldering materials. Our team can fulfill fire watch requirements as part of broader construction site security services, keeping your project compliant and on schedule. Contact us through our
contact page to request a custom quote.

