24-hour security guard services require a minimum of three to four guards per post to cover shifts, breaks, and relief without gaps, not one guard “working around the clock.” A properly staffed 24/7 contract typically runs $18,000–$29,000+ per month for a single unarmed static post, scaling with armed status, number of posts, and market. Ask any provider proposing 24-hour coverage exactly how many guards are assigned to avoid single-point staffing gaps.
Key Takeaways
- One post covered 24/7 requires multiple guards on rotating shifts — never assume “24-hour” means one person
- Shift-change hours are historically a higher-risk window; ask how your provider handles the handoff
- Relief and sick-day coverage should be built into the contract, not treated as an afterthought
- 24/7 coverage doesn’t have to mean the same coverage model around the clock — many properties run heavier staffing overnight and lighter during business hours
What “24-Hour” Actually Requires in Staffing
Covering a single post for a full 24-hour period across a 7-day week requires roughly 3–4 full-time-equivalent guards once you account for standard shift lengths, days off, and relief coverage — not one person working continuously. A provider quoting 24-hour coverage with an unrealistically thin staffing plan is setting up gaps, and gaps are exactly when incidents happen. Ask for the actual staffing plan, not just the coverage-hours promise.
Shift Handoffs Are a Vulnerability Point
The moments when one guard’s shift ends and the next begins are historically when coverage gets thinnest — attention is divided, briefing takes time, and if the handoff isn’t procedural, information about what happened on the prior shift gets lost. A properly run 24-hour contract includes a documented shift-handoff process: a written or logged briefing covering incidents, visitor activity, and any outstanding issues, so the incoming guard starts informed rather than starting cold.
Does Every Hour Need the Same Coverage Level?
Not necessarily. Many properties run a tiered model — a single guard during low-traffic daytime hours, stepping up to two guards or added patrol frequency overnight when risk profiles shift. This isn’t a compromise; matching staffing intensity to actual risk by time of day is how a well-run 24-hour contract keeps cost proportional to need rather than flat-rating every hour identically.
What to Confirm Before Signing a 24/7 Contract
Ask how relief coverage works when a scheduled guard calls out sick, whether guards are dedicated to your site or rotated across multiple accounts, how shift handoffs are documented, and whether pricing reflects a realistic staffing plan or an unrealistically thin one that will produce coverage gaps within the first month.
What Full 24/7 Coverage Costs
For a single unarmed static post, expect roughly $18,000–$29,000 per month depending on market; armed coverage and multiple posts scale up from there. Overnight and weekend/holiday hours typically carry a rate differential built into the blended monthly figure. Ask for the shift-by-shift breakdown so you can see how the total is built, not just the bottom line.
National Protective Service runs 24-hour contracts across the San Francisco Bay Area, Los Angeles, Sacramento, Houston, New York, and Dubai with documented shift-handoff procedures and dedicated (not shared-across-accounts) guard staffing on standing contracts.
“The 24-hour contracts that fail aren’t understaffed on paper — they’re understaffed in practice, because nobody accounted for relief coverage when someone calls out,” our operations team says.
Frequently Asked Questions
How many guards do I actually need for 24-hour coverage on one post?
Typically 3–4 full-time-equivalent guards to cover shifts, days off, and relief without gaps.
Does 24-hour coverage cost the same at every hour?
Not always — many contracts weight staffing intensity by time-of-day risk, though overnight and holiday hours often carry a rate premium.
What happens if a scheduled guard calls in sick?
A properly built contract includes relief-coverage staffing to prevent gaps — confirm this explicitly before signing.
Can I get 24-hour coverage with a mix of armed and unarmed shifts?
Yes — many properties run unarmed coverage during business hours and step up to armed or off-duty police coverage overnight, based on the risk assessment.
