Construction site security typically costs anywhere from a few hundred dollars a month for a basic camera setup to over $15,000 a month for round-the-clock guard coverage, depending on your site’s size, location, and risk level. Most contractors end up spending more than they need to because they default to familiar options rather than comparing what each solution actually delivers. This guide breaks down the real numbers across every major security approach so you can make an informed decision before your next project kicks off.
The True Cost of Security Guards on a Construction Site
Guards are the most common default choice, and they’re also the most expensive one. Unarmed guards typically run $25 to $40 per hour in the US market. Armed guards start at around $35 and can reach $55 or more per hour depending on location and experience level.
Run the math on overnight coverage and it adds up fast. A single unarmed guard working an 8-hour overnight shift at $30 per hour costs $240 per night, or roughly $7,200 per month. If your site needs 24/7 coverage, you’re looking at three shifts, meaning a minimum of three guards and a monthly bill that can easily exceed $20,000 for one location.
That figure also doesn’t account for what a guard can’t do. A single person can only physically be in one place at a time. On any active construction site larger than a few thousand square feet, there are going to be blind spots. A guard watching the front gate isn’t watching the back fence line, and most experienced thieves know this.
TrueLook’s ROI analysis of construction security calculated that round-the-clock guard coverage from a single guard costs over $170,000 per year. For most contractors, that’s not a security budget, it’s a significant chunk of project margin.
Camera-Only Systems: Lower Cost, Lower Coverage
A self-installed camera system is the budget end of the spectrum. Hardware costs for a basic multi-camera setup range from $1,000 to $9,000 depending on camera quality and quantity. Monthly subscription fees for storage and remote viewing typically run $99 to $600 per month.
For a mid-range setup with four cameras and a reliable cloud storage plan, you’re probably looking at $3,000 to $5,000 upfront and $200 to $400 per month ongoing. Over a 12-month project, that comes to roughly $6,000 to $10,000 all-in.
The limitation here isn’t the cost, it’s the capability. A camera-only system records what happens. Nobody is watching the feed in real time, nobody activates a deterrent when someone cuts the fence at 2am, and nobody calls police until the next morning when you pull up the footage. For sites with genuine theft exposure, that response gap is a serious problem.
Live-Monitored Surveillance: The Middle Ground That Usually Wins on Cost
Professionally monitored construction site security sits between guards and self-install cameras in price, but it typically outperforms both on what you actually get. Services like Mobile Video Guard deploy mobile units with multiple camera views, red and blue strobe lights, and a built-in loudspeaker. Trained operators, many with law enforcement backgrounds, monitor your site from 6pm to 6am and can intervene in real time when something triggers an alert.
The cost varies based on site size and number of units required, but customers who switch from guard services to live video monitoring regularly report savings of 60% to 90% compared to their previous security spend. A site that was costing $12,000 a month in guard fees might achieve the same or better protection for $2,000 to $4,000 a month with a monitored camera system.
There’s no long-term contract required, which matters for project-based work where your security needs change constantly. A system can be deployed within 24 hours of contact, and units can be repositioned as the project progresses.
What Drives Your Actual Security Cost
Before getting quotes, it helps to understand which variables move the needle most.
Site size and layout. Larger perimeters require more camera units to eliminate blind spots. A compact urban build might be covered by one or two units. A sprawling residential development or infrastructure project might need four or five.
Hours of exposure. A site that’s active until 6pm and completely unattended until 7am the next morning has over 13 hours of daily vulnerability. The longer that window, the more your security setup needs to account for overnight conditions.
Asset value on site. Copper, HVAC equipment, power tools, heavy machinery, and lumber all attract different types of theft. Higher value assets justify higher security investment. A single piece of stolen heavy equipment can represent a loss of $30,000 or more.
Location and access points. A site in a well-lit, visible urban corridor faces different risks than one on a remote rural road. More access points mean more coverage required.
Power availability. If your site doesn’t have grid power yet, you need units that can operate on solar or generator. Solar-powered surveillance systems are available for exactly this scenario, with Mobile Video Guard’s remote surveillance options including off-grid units engineered to run for up to five days without sun.
A Side-by-Side Cost Comparison
| Security Option | Upfront Cost | Monthly Cost | Active Deterrence | 24/7 Coverage |
| Security guard (single, overnight) | None | $6,000 to $8,000+ | Yes, limited | Overnight only |
| Security guard (24/7) | None | $18,000 to $25,000+ | Yes, limited | Yes |
| Camera-only system | $1,000 to $9,000 | $200 to $600 | No | Yes (recorded) |
| Live-monitored surveillance | Low to none | $1,500 to $5,000+ | Yes | Overnight + alerts |
These are ballpark ranges and your actual quote will depend on your specific site. But the pattern is consistent: live monitoring delivers active deterrence capability at a fraction of guard costs.
Don’t Forget the Hidden Costs of Inadequate Security
Whatever you spend on security, compare it against what a single theft event actually costs. Research from the Associated Schools of Construction puts the average loss per construction site theft at around $6,000 per incident. That’s the direct replacement cost. It doesn’t include project delays while you wait for replacements, the administrative time for police reports and insurance claims, potential premium increases on your coverage, or the morale hit on a crew that shows up Monday to find their tools gone.
One well-documented theft on an active site can erase months of security savings. That’s the context every budget decision should be made in.
Before your next project, it’s worth running through how to run a construction security audit that actually prevents theft to get a clearer picture of your site’s actual exposure. And if you’ve had a crew member notice something suspicious or unusual on site recently, read through how to train your construction crew to be your first line of defense for a practical framework that costs nothing to implement.
Getting a Quote for Your Site
The most accurate way to understand what security will cost for your specific project is to request a site-specific proposal. A reputable provider will ask for your site plan or address, your operating hours, the type of assets on site, and any existing security measures you have in place. From there, they can calculate the coverage needed and give you a real number rather than a range.
Mobile Video Guard typically has proposals ready within a few hours of initial contact and can deploy equipment within 24 hours of agreement. There are no long-term contracts, which means the commitment matches the project timeline rather than extending past it.
Frequently Asked Questions
How much does a construction site security guard cost per month?
A single overnight guard typically costs $6,000 to $8,000 per month depending on hours and location. Round-the-clock coverage from a single guard can exceed $20,000 per month.
Is live video monitoring cheaper than security guards for construction sites?
In most cases, yes. Customers who switch from guard services to live video monitoring typically report cost reductions of 60% to 90%, while gaining wider camera coverage and active response capability.
What is the minimum I should budget for construction site security?
For a small site with moderate risk, a basic monitored camera setup might start around $1,500 to $2,000 per month. For high-value or high-risk sites, budget accordingly and get a proper site assessment first.
Does live video monitoring require a long-term contract?
Not with every provider. Mobile Video Guard operates without long-term contracts, which suits project-based work where security needs change from site to site.
Can I get a security system deployed quickly mid-project?
Yes. Mobile surveillance systems can typically be operational within 24 hours of initial contact, including site setup and monitoring activation.
