Security guard services in San Bernardino County from CAL Security Group: unarmed officers licensed by the Bureau of Security and Investigative Services (BSIS) for distribution centers, truck yards and job sites in Ontario, Fontana, Rialto and Chino, and for retail, hospital and High Desert properties up the I-15 in Victorville and Hesperia.
The valley floor from Chino and Ontario east through Fontana, Rialto, Colton and San Bernardino is one of the largest warehouse markets in the country. Ontario International Airport moves air cargo as well as passengers. Rail runs through it all: in Colton, the BNSF and Union Pacific main lines cross at Colton Crossing, where a flyover finished in 2013 lifted the Union Pacific tracks over the BNSF line. Around that sit truck stops, trailer drop lots and chassis yards that stay full overnight.
North of the Cajon Pass, the High Desert is a different job. Victorville and Hesperia have newer distribution buildings, the Southern California Logistics Airport on the former George Air Force Base, retail along the I-15 and a lot of open ground between sites. Posts are farther apart, and an officer outside works through summer heat the coast never sees.

Coverage built around freight: docks, gates, trailer lots and the construction sites that keep adding more of them.

Dock supervision, trailer seal checks, driver check-in and yard walks for distribution centers from Chino and Ontario to San Bernardino.
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Gate control and overnight posts for tilt-up warehouse builds and new housing tracts, where copper wire, tools and equipment disappear at night.
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Scheduled checks of trailer lots, buildings empty between tenants and sites spread along the I-10 and SR-60.
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Short-term posts for peak shipping season, a building sitting empty between tenants, or the weeks before a long-term post starts.
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Logged rounds for high-piled storage buildings while sprinklers are impaired, and fire watch during hot work on steel and roofing.
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Lobby and entrance posts for medical buildings in Loma Linda and retail and offices in Rancho Cucamonga.
↗Call with the yard address, the number of trailers and dock doors, and which nights you are worried about. We walk the fence line before we quote.
Freight and the construction that keeps adding to it dominate the Inland Empire's property mix, with hospital campuses in Loma Linda and regional retail alongside.
Four Inland Empire cities have their own page so far. We also cover the rest of the valley from Chino to San Bernardino and the High Desert cities of Victorville and Hesperia.
Hesperia, Loma Linda.
From Ventura to San Bernardino, our licensed officers and 24/7 dispatch protect five Southern California regions. Click a pin or county on the map to see every city we cover.
Large distribution buildings around the airport, former dairy land being built out into warehouses and housing, and regional retail at Ontario Mills and Victoria Gardens. Many of these posts start as construction security and turn into warehouse security when the tenant moves in.
Truck yards, trailer storage, rail-served warehouses and heavy truck traffic along the I-10 and I-210. Yard posts here come down to fences, lighting and who comes through the gate at 3 a.m.
The county seat's government buildings, the hospital and university campuses in Loma Linda, older commercial corridors, and vacant properties that need patrol between owners.
Newer warehouses, the logistics airport, retail along the I-15 and open lots. Long drives between sites favor fewer, better-planned posts over many short patrol stops.
Neighborhoods and job sites below the San Gabriel and San Bernardino Mountains in Rancho Cucamonga, Fontana and San Bernardino sit in wildfire zones and take strong Santa Ana winds. Wind flattens temporary fencing and scatters loose material, so the post orders add rounds on windy nights.
Summer afternoons in the Inland Empire and the High Desert often pass 100°F, and California has written rules for working in it. Cal/OSHA's outdoor heat standard, Title 8 Section 3395, requires drinking water, shade once the temperature passes 80°F, and cool-down rest for outdoor workers. The indoor standard, Section 3396, took effect on July 23, 2024 and applies to most indoor workplaces once the temperature reaches 82°F, which takes in many warehouses without air conditioning.
For a gate or yard post, that means the post needs shade, water and a way for the officer to take a cool-down break without leaving the gate unwatched. We settle those details on the site walk and write them into the post orders: where the guard shack is, whether it is cooled, and who covers the gate during a break.

Yard problems usually show up on the perimeter: a cut fence, a dark corner, a gate that does not latch. We look at all of it before we quote.
Tell us the building size, dock doors, yard layout and hours. We walk it, write the post orders and quote each post separately.
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