Renting a mobile surveillance trailer in Dallas-Fort Worth runs $1,200 to $1,800 a month for the unit alone, and $2,000 to $2,900 a month with 24/7 live monitoring included. Buying one outright costs $18,000 to $50,000 depending on the build. Those are market ranges. Every site is different, which is why we quote per job. This guide covers what moves the number.
What sets a mobile surveillance trailer’s cost
The unit itself drives most of the price. A trailer with 2 pan-tilt-zoom cameras and solar power costs less than a 3-camera unit with a backup generator. Add the monitoring level, the data plan, delivery, and how long you need it on site, and you can see why two quotes for “a camera trailer” can land $1,000 apart.
We deploy RVMP Flex Security trailers (we’re an authorized partner). The spec sheet: 25x optical zoom PTZ cameras with infrared night vision out to 200 meters, a 30-watt speaker for live talk-down, 2 flood lights, 6 strobes, 880 watts of solar feeding 600Ah heated batteries, and a mast that reaches 27 feet. The Alpha model adds a propane generator for round-the-clock power in any weather. Both are built in Elkhart, Indiana.
Renting vs buying a security trailer in DFW
Most national vendors rent and won’t sell. A few Texas sellers do the opposite. We do all three: rent, lease, or buy, with financing available.
The break-even math is simple. At typical DFW rental rates, 18 to 24 months of rent equals the purchase price of a comparable unit. Securing one site for 4 months? Rent. Rotating a trailer across your equipment yard, your storage lot, and a jobsite for the next 3 years? Owning wins, and our units come with a 3-year warranty.
A lease splits the difference: lower monthly cost than a rental, and you keep a path to owning without writing a $30,000 check up front.
The math against a security guard
An overnight guard at $25 an hour costs about $18,000 a month for true 24/7 coverage, and he can only watch one spot at a time. A monitored mobile security trailer covers the whole site from 27 feet up, never takes a break, and runs a fraction of that.
Guards still make sense when you need someone to physically escort visitors or check IDs. For deterring theft on an open site, the math isn’t close.
What DFW jobsites are up against
Construction and equipment theft costs the industry between $300 million and $1 billion a year nationally, per the National Insurance Crime Bureau, and less than a quarter of stolen equipment is ever recovered. Texas sits in the top tier for it.
Closer to home: copper thieves hit DFW hard enough in 2025 that AT&T spent over $1 million on repairs, and one Dallas theft knocked out 911 service for part of the city. With the US-380 corridor and Collin County still adding subdivisions, McKinney-area jobsites are full of copper wire, and thieves know it.
Theft also clusters on weekends. Around 70% of equipment theft happens Friday through Monday, when sites sit empty. That’s exactly the window a trailer covers best.
One more local wrinkle: McKinney runs a “No Permit, No Response” policy. Any alarm that summons police needs a city permit ($50 a year for homes, $100 for businesses), and dispatch won’t send officers to a monitoring-center call from an address without one. The same permit rules apply to any commercial security system in town.
What monitoring adds
An unmonitored trailer records. A monitored one responds.
Ours work like this: motion on site triggers an action-activated alert, you (or our monitoring team) pull up the live feed, and a real person can speak through the trailer’s speaker to warn someone off before anything leaves the property. Everything records to the cloud with 30 days of storage.
Want to monitor it yourself and skip the monthly monitoring fee? You can. You keep the cloud storage, the AI detection, and the app.
Frequently asked questions
How much does mobile surveillance cost?
Across the DFW market, trailer rentals run $1,200 to $1,800 a month for the base unit, with 24/7 live monitoring adding $400 to $600. Short-term event rentals run $250 to $700 a week. Buying ranges from $18,000 to $50,000. We quote per job based on cameras, power, and monitoring level.
How long can a surveillance trailer operate without power?
Indefinitely. Our solar trailers pair 880 watts of panels with 600Ah of heated batteries, so they run 24/7/365 with no power hookup or trenching. For shaded sites or long stretches of cloudy weather, the Alpha model adds a propane generator as backup, and shore power is available on both models.
Do surveillance trailers record all the time?
Ours record continuously to the cloud and keep 30 days of footage. Alerts are action-activated, so your phone only pings when a person or vehicle shows up, and you can open the live feed any time.
Should I rent or buy a security trailer?
Rent for projects under 18 months. Buy or lease if you’ll use it longer or across multiple properties, since rental fees reach the purchase price of a comparable unit in about 18 to 24 months. We sell, rent, and lease, and financing is available.
Get a real number for your site
Market ranges only get you so far. Site layout, camera count, power, and monitoring level all move the price, so we look at your site for free and quote the job, whether that’s rent, lease, or buy.
We’ve been securing McKinney and Collin County since 2000. We’re licensed (TX B09951), bonded, and insured, and our mobile surveillance trailers are monitored by a real person who can talk down an intruder the moment they step on your property.
Call Preventive Security Systems at (214) 544-7233 for a free on-site assessment, or send us your site details and we’ll come to you.