How Much Does Construction Site Security Cost?

Coverage hours drive the scope

A fixed officer is scheduled for defined shifts. The number of hours, days, and posts affects staffing. A site that needs continuous gate screening has a different requirement from one that needs checks after crews leave.

If the schedule includes nights, weekends, holidays, or overtime, state that early. Changes after a proposal can alter availability and price.

Mobile visits have their own cost drivers

For mobile patrols, the number of visits, distance between sites, time needed at each checkpoint, and reporting requirements matter. A route across several nearby locations may differ from one remote site that requires a long drive.

Specify what should be checked and how long a meaningful visit takes. A vague request for “occasional patrols” is hard to quote or evaluate.

Location and provider requirements matter

Local labor conditions, licensing rules, insurance requirements, travel, and site-specific onboarding can affect a proposal. Specialized sites may require additional orientation or access steps.

Diamond Group’s model uses local licensed providers coordinated through a national contact. Ask what provider qualifications and site requirements are included in the quoted scope.

Site complexity changes staffing

Multiple gates, long fence lines, remote equipment yards, high traffic, and several work phases can require more time or more than one officer. A small but busy entrance may demand continuous attention even if the property footprint is modest.

Share a current map and explain which tasks are essential. A site walk-through can reveal whether one post or route is realistic.

Duration and flexibility affect planning

A multi-month project, a two-week delivery period, and an emergency weekend assignment have different scheduling needs. State the expected start, end, and likely changes.

Ask how extensions, added posts, canceled shifts, and schedule changes are handled. These terms can matter as much as the initial estimate.

Compare total scope, not a single rate

Request proposals that list service hours or visits, duties, reporting, escalation, provider requirements, and exclusions. Confirm who supplies access equipment, shelter, or communications if needed.

No responsible provider can promise that security will eliminate theft or save a specific amount. Evaluate whether the plan addresses the site’s most material risks and whether the deliverables are clear. Diamond Group’s construction security page, risk assessment checklist, and contact page can help you prepare a quote request.

A sample scope to request

A useful request might say: one construction address, overnight coverage on weekdays, weekend hours, two active gates, an equipment yard, and a requirement to call the superintendent for any open gate. Include the requested start date, expected project duration, site map, and whether the officer should remain on site or make visits. Ask the provider to state assumptions and exclusions. This level of detail helps quotes describe the same service, making them easier to compare without publishing an unreliable generic price.

Avoid a misleading single number

A quoted rate without hours, travel, supervision, reporting, and site requirements says little about the total assignment. Ask for the expected schedule and how changes are billed. If a project has several phases, request a scope that can be revised at defined milestones. The resulting estimate is more useful than a generic industry average.