Mobile surveillance trailer vs security guard: DFW cost comparison

Here’s the short answer. A monitored mobile surveillance trailer in Dallas-Fort Worth typically runs about $1,400 to $3,500 a month all in, once you add live monitoring to the base rental. A single overnight security guard usually costs $3,000 to $8,000 or more per month. The trailer covers your whole site, never clocks out, and runs at a fraction of what one guard costs.

I get this question a lot from contractors and yard managers across Collin County. You’ve got a site sitting open at night, and you want eyes on it without paying for a warm body in a truck. So let’s walk the numbers.

The quick math on a DFW site

Guard wages are the first thing people underestimate. A security guard in the Dallas area earns somewhere around $16 to $22 an hour before the agency markup, and staffing firms bill well above that to cover insurance, supervision, and overhead. National wage data from the Department of Labor’s CareerOneStop wage tool puts guard pay in that band. Once an agency adds its margin, one overnight post at 10 to 12 hours a night lands in the $3,000 to $8,000 a month range. Some round-the-clock coverage quotes run higher.

A trailer works differently on the invoice. Independent cost guides put mobile surveillance trailer rentals around $1,000 to $2,900 a month for the base unit, with 24/7 live monitoring adding roughly $400 to $600 a month on top. Add a one-time setup and delivery fee in month one, usually a few hundred dollars, and you land on a predictable monthly number that sits under most single-guard contracts.

Stretch that across a full project and the gap gets loud. A guard post at the low end, call it $4,000 a month, is $48,000 over a year. A monitored trailer at $2,500 a month all in comes to $30,000 for the same stretch, and it’s watching the whole yard the entire time instead of one gate. On a longer build, that difference covers a lot of other line items.

What one guard actually covers

A guard is one person watching one spot. On a 5-acre laydown yard in Melissa or a stretched-out build in Frisco, the back corner where the copper and the catalytic converters live sits dark while the guard is parked at the gate. Thieves know this. Property crime tracked by the Bureau of Justice Statistics still runs in the millions of incidents a year, and jobsite theft tends to happen in the exact blind spots one person can’t hold.

Guards also get tired, take breaks, and sometimes don’t show. When a no-show happens, your site is uncovered and you find out the next morning.

What the trailer covers while the site is empty

Our mobile surveillance trailers run on solar and cellular, so they deploy where there’s no power, no internet, and no fence. The cameras cover the whole site at once with PTZ and panoramic views, and the system is action-activated. When something moves that shouldn’t, it triggers alerts, kicks on lights and strobes, and can push audio talk-down to warn the intruder off.

Deterrence does a lot of the work here. Bright light and visible cameras change behavior, and physical-security guidance from CISA treats lighting and surveillance as frontline layers for exactly that reason. A would-be thief who rolls up, gets lit up, and hears a voice usually leaves before anything is gone.

Every trailer we deploy is backed by 24/7 professional monitoring through a UL-listed central station, with live feeds available up to 24 hours and 30-day recording if you need to hand footage to police or your insurer. The units are USA-made by RVMP in Elkhart, Indiana.

One trailer moves with the job

A guard contract is tied to a post. When the work shifts from one phase to the next, or you open a second staging area across town in Prosper or McKinney, you’re back to negotiating more hours or a second guard. A trailer just gets towed to the new spot and powered back up on its own solar and cellular. Same unit, new coverage, no re-staffing. For a builder running two or three active sites around Collin County, that flexibility is where the savings really compound.

When a guard still makes sense

I’ll be straight with you. A trailer doesn’t open a gate, check IDs, or walk a visitor to the site office. If your property needs a human to interact with people, a guard earns the cost. Plenty of sites run both, a guard during active hours and a trailer holding the perimeter overnight and on weekends.

For most construction sites, equipment yards, dealer overflow lots, and raw land around Collin County, the overnight hours are the exposure, and that’s where the trailer earns its keep. You can dig into what a mobile surveillance trailer costs in DFW if you want the full breakdown.

How we set it up

We’ve run Preventive Security Systems here since 2000, 26 years in the DFW market, licensed by TDLR under B09951 and bonded and insured. You can buy, rent, or lease a trailer, and we keep terms flexible with month-to-month or long-term, whatever fits the job length. Financing is available, and we take cash, card, or check. Want to see the options? Start with our mobile security trailers page.

The fastest way to get a real number for your site is a free on-site consultation. Call us at (214) 544-7233 and we’ll walk your property, figure out coverage, and give you a straight quote.