Key takeaways
- •A construction camera trailer rents for roughly $1,000-$3,500 per month and sells for $15,000-$50,000 if you are a GC reusing the same unit across jobs.
- •Solar trailers fit jobsites because they deploy in hours and need no power and no internet at the site, which is exactly what an early-phase build does not have yet.
- •Budget separately for mobilization ($300-$800 each way), a software tier ($99-$129 / ~$359 / ~$599 per month), and professional monitoring (+$300-$600 per month).
- •Cameras deter, record, and document. They cannot physically respond. The lowest-risk setup pairs a monitored trailer with mobile patrol for after-hours response, and patrol is far cheaper per visit than a live guard standing on an empty lot.
- •Calvis is a marketplace that connects you with licensed agencies for cameras, patrol, and guards, so you can price all three against the same site.
Construction theft is not a small line item. Industry estimates put equipment and material losses in the billions of dollars a year, and most of it never gets recovered. A jobsite is close to the perfect target: an open perimeter with no fences for the first weeks, expensive equipment and copper sitting in the open, tools and materials that move easily, and no power or internet wired up yet to run a fixed camera system. This guide breaks down what jobsite surveillance actually costs, how the number moves with project size and duration, when renting beats buying for a general contractor, and how cameras fit alongside patrol on an active build.
Why jobsites are high-risk and hard to secure
A finished building secures itself. Walls, locked doors, a wired alarm, and an occupant who notices when something is wrong. A construction site has none of that for much of its life.
- •Open perimeters. Early phases have no fence, or a temporary one with gaps. Anyone can walk on after dark.
- •High-value, portable targets. Copper wire, generators, compressors, power tools, lumber, and fuel all carry resale value and move easily. Heavy equipment with a universal key gets driven off.
- •No infrastructure. There is often no permanent power and no internet for weeks. A traditional camera system that needs an outlet and a wired uplink cannot deploy until late in the schedule, which is the opposite of when you need it.
- •A moving target. The risk zone shifts as the build progresses. Material lay-down areas, equipment yards, and access points all move from phase to phase, so fixed cameras end up pointed at the wrong place.
- •Predictable downtime. Crews leave at a known hour, and the site sits empty all night and all weekend. Thieves know the schedule as well as you do.
That combination is why fixed, wired systems rarely fit a jobsite and why solar camera trailers became the default tool.
Why solar trailers fit construction
A mobile surveillance trailer is a self-contained, solar-powered tower on a towable chassis: HD or PTZ cameras, onboard storage, a cellular uplink, a battery bank, and usually strobe lights and a speaker for active deterrence. For a build, the fit is almost exact.
- •Rapid deploy. A unit drops on site and runs the same day. No trenching, no electrician, no waiting on the utility.
- •No infrastructure needed. Solar plus battery handles power. Cellular handles the uplink. Neither depends on anything the site has not built yet.
- •It moves with the phases. When the equipment yard relocates or excavation gives way to vertical work, the trailer tows to the new hot spot. Fixed cameras cannot follow the risk; a trailer can.
- •Active deterrence, not just recording. Strobes and a speaker (live or automated voice-down) turn a passive camera into something that warns an intruder off before they take anything.
For a full breakdown of how trailers are priced and built, see the mobile surveillance trailer cost guide.
What drives the cost
Two trailers that look the same from the road can differ by thousands a month. The cost lives in three systems plus the services around them.
Hardware. The cameras are the biggest variable. Standard fixed cameras are the base. PTZ (pan, tilt, zoom) cameras cover far more ground per unit and let an operator or AI track movement. Night vision, thermal, and infrared add $2,000-$5,000 to a build and are rarely optional, since most jobsite theft happens after dark. 4K resolution adds roughly 20% and matters when you need to read plates or faces at distance across a large lot.
Power. A trailer is only useful if it stays on. A larger solar array and battery bank cost more upfront but carry the system through cloudy stretches so nobody drives out to swap batteries or run a generator. On a remote site, autonomy is worth paying for.
Software. The hardware records; the subscription is what stores, alerts, and reviews. Tiers generally run like this:
| Tier | Typical monthly cost | What you get |
|---|---|---|
| Entry-level | $99-$129 | Live viewing, motion detection, time-lapse, cloud storage, basic support |
| Advanced | ~$359 | Motion alerts, unlimited time-lapse, expanded data, AI analytics |
| Premium | ~$599 | Long-term storage, full-HD recording, advanced integrations |
Note that time-lapse is usually included at the entry tier. That matters for construction specifically, covered below.
Services. On top of hardware, power, and software, budget for mobilization and demobilization (delivery and pickup) at $300-$800 each way, plus cellular data and any local permit fees. And if you want a real-time response rather than a morning-after recording, professional monitoring adds $300-$600 per month for a center that watches the AI flags and escalates real events.
Cost by project size and duration
Jobsite surveillance scales with how much ground you have to cover and how long the build runs. These ranges reflect realistic camera-trailer coverage at typical specs.
| Project profile | Typical setup | Duration | Monthly cost | Rough project total |
|---|---|---|---|---|
| Small residential or remodel | 1 trailer, entry software | 2-4 months | $1,000-$1,500 | $2,000-$6,000 |
| Mid-size commercial | 1-2 trailers, PTZ + night vision | 6-12 months | $1,800-$3,000 | $11,000-$36,000 |
| Large or multi-phase site | 2-3 trailers, advanced software + monitoring | 12+ months | $3,000-$6,000 | $36,000+ |
| Linear or spread-out site (road, solar farm) | 3+ trailers, PTZ + thermal | varies | $4,500-$8,000 | varies |
Add mobilization at $300-$800 each way per trailer, and add 20-30% in high-cost metros like Los Angeles, New York, and Miami. A single base unit on a short residential job lands near the bottom of the range. A long, spread-out commercial site running multiple monitored trailers lands at the top.
Rent vs. buy for general contractors
Most buyers rent, and for a single project that is almost always right. The rent-versus-buy line usually falls around 18-24 months of continuous use.
Rent when the deployment is project-based, you want zero upfront capital and one predictable monthly bill, and you want maintenance, software, and connectivity handled for you. That describes most individual jobs.
Buy when you are a GC running many jobs back to back and will redeploy the same units across projects for years. At $15,000-$50,000 per unit, ownership starts to pay off once a trailer would otherwise sit on rent across multiple overlapping builds. A GC with five active sites at any given time is usually better off owning a small fleet than renting five units indefinitely.
One caveat that catches buyers: the trailer is the cheap part. Even after you buy, the software subscription, cellular data, cloud storage, and maintenance are ongoing for the life of the unit. Owning the hardware does not end the monthly bill, it just lowers it.
The time-lapse bonus
Here is a benefit that is easy to miss when you are pricing security. The same cameras watching for theft are also recording your entire build, and time-lapse is usually bundled into the entry software tier at no extra cost.
That footage earns its keep in ways that have nothing to do with deterrence:
- •Progress documentation for the owner, lender, or your own records, without sending someone out to shoot photos.
- •Dispute resolution. When a sub claims work was done or a delivery was made, the timestamped record settles it.
- •Marketing and client updates. A clean time-lapse of a build coming together is genuinely useful collateral.
- •Safety and incident review. If something goes wrong on site, you have the footage.
You are paying for theft prevention and getting project documentation as a side effect. For most GCs that turns a pure cost line into something closer to dual-purpose spend.
Cameras plus patrol: the honest setup
Cameras have a hard limit, and it is worth being clear about it. A trailer deters, records, and (if monitored) alerts. It cannot physically respond. It cannot chase someone off a lot, stop a truck at the gate, or step into a situation in real time. A camera that captures a theft you discover the next morning is evidence, not prevention.
That is why the cheapest effective jobsite setup is usually not cameras alone, and it is also not a guard standing on an empty lot all night. A live guard runs $20-$35 per hour, so around-the-clock coverage exceeds $10,000 per month, most of it spent watching nothing happen. The better math for after-hours construction risk is a monitored trailer plus mobile patrol: the cameras watch the perimeter continuously, and a patrol officer responds only when an alert fires or swings through on a scheduled route.
Mobile patrol is dramatically cheaper because one unit covers several sites per shift, dropping your real cost to roughly $10-$15 per site per visit instead of an hourly guard wage. You get the 24/7 evidence trail from the cameras and a human response when something actually happens. See the mobile patrol security cost guide for how per-visit pricing works, and the construction site security companies guide for how to vet providers.
How to price your jobsite
Three steps keep the quotes comparable and the spend honest.
1. Map the risk by phase. Mark where the high-value targets sit now (equipment yard, material lay-down, copper) and where they will move as the build progresses. That tells you how many trailers you need and where they tow next.
2. Decide who responds. If a recording you review the next morning is enough, an entry-tier unmonitored trailer covers it. If you need something to happen during an after-hours event, budget for monitoring plus mobile patrol response, not a full-time guard on an empty lot.
3. Get one all-in number from each provider. Ask every quote to include hardware, power, cellular, storage, software tier, monitoring, and mobilization in a single monthly figure, in writing. Then compare the trailer against patrol and guard quotes for the same site.
Calvis lets you request and compare quotes from licensed agencies for surveillance towers and remote video monitoring, mobile patrol, and on-site guards in one place. For how cameras, patrol, and access control fit together across the life of a build, the construction site security guide ties it all together.
A camera trailer is one of the most cost-effective tools a jobsite has against theft, and the time-lapse you get alongside it pays for part of the spend on its own. Price the hardware, power, and software honestly, decide who responds when an alert fires, and compare cameras against patrol and guards on the same site before you sign.