When you’re securing a vacant or void property , you’re usually weighing two traditional options: mobile patrols or static guards.
Both involve people on the ground, but they differ a lot in cost, effectiveness, insurance acceptance, and suitability by site type.
This guide explains how each option works, when each one fits, and how most owners now combine them with technology to cut risk without overspending.
Why Void Properties Need a Different Security Plan Vacant sites come with unique challenges:
No legitimate daily activity
Higher likelihood of trespass, squatting, and vandalism
Increased arson and metal theft risk
Insurers expect proof of active risk management
Unlike occupied buildings, void sites don’t need reception desks or concierge-style guarding. They need deterrence, detection, and documentation.
What Are Mobile Security Patrols? Mobile patrols use trained officers who visit a site at scheduled or random times. Patrols may occur:
Daily
Multiple times per week
Weekly, which is the minimum for many insurers
Typical patrol duties include:
External and internal checks
Lock and access point inspections
Visual checks for damage or trespass
Waste and fire hazard identification
Logging visits with time-stamped records
Reporting issues to the property owner
Patrols are usually brief, roughly 5 to 20 minutes depending on site size.
What Is Static Guarding? Static guarding places a security officer on site for extended periods, often:
Overnight
24/7
During high-risk phases, such as post-incident, demolition, or asset removal
Static guards may:
Deter intruders through visible presence
Control authorised access
Respond to alarms
Conduct regular patrols of the site
Effectiveness depends on visibility, vigilance, and site layout.
Mobile Patrols vs Static Guards: Key Comparisons
Deterrence
Mobile patrols
Limited deterrence between visits
Visible signage helps
Best used as a supporting measure
Static guards
Strong deterrent when present and visible
Less effective if the guard sits inside a cabin or vehicle
Presence is limited to one location at a time
Verdict: Static guarding delivers stronger immediate deterrence, but only while the guard is present.
2. Incident Detection Mobile patrols
Detect issues only during visits
Problems may go unnoticed between patrols
No real-time alert capability
Static guards
Can respond immediately if nearby
Coverage is limited on large sites
Human error and fatigue can reduce detection
Verdict: Neither option provides continuous detection without technology.
Related article: Temporary CCTV towers vs traditional guards
Cost Comparison Solution Typical UK cost Mobile patrols £300 to £1,200 per month Night-only static guard £6,000 to £9,000 per month 24/7 static guarding £12,000 to £18,000 per month
Mobile patrols are far cheaper, but they offer limited coverage.
4. Insurance Acceptance and Compliance Insurers usually specify minimum inspection frequencies rather than continuous guarding.
Common expectations:
Weekly inspections for residential
Weekly or daily checks for commercial
Logged evidence, such as photos and timestamps
Hazard identification
Mobile patrols often satisfy inspection clauses when logs are kept properly.
Static guarding may be:
Required temporarily after incidents
Mandated during high-risk periods
Imposed by insurers following claims
Related article: Insurance requirements for vacant property
Coverage and Site Size Mobile patrols
Suitable for small to medium sites
Limited effectiveness on large estates
No deterrence outside visit windows
Static guards
Can patrol large sites
Still limited by human movement
Multiple guards needed for full coverage
Verdict: Large sites need either multiple guards or technological support.
6. Health, Safety, and Liability Vacant sites often mean elevated risk:
Aggressive trespassers
Organised theft
Night-time confrontation
Hazardous conditions
Most guarding contracts prohibit physical intervention, so guards may observe but not engage. This raises duty-of-care concerns, lone worker risks, and potential liability. Adding technology reduces these risks significantly.
When Mobile Patrols Are the Right Choice Mobile patrols work best when:
The property is low risk
Vacancy is short term
The insurer requires inspection logs
Physical security is already strong
CCTV or alarms are in place
They’re ideal for:
Residential voids
Small commercial units
Low-crime areas
When Static Guards Are Justified Static guarding is appropriate when:
Assets are extremely high value
There’s ongoing authorised access
Post-incident insurer requirements apply
Demolition or asset removal is underway
The site is public-facing or high profile
Static guarding is rarely cost-effective as a long-term solution.
Modern vacant property protection uses layered security.
A typical layered setup:
CCTV towers for 24/7 detection
Mobile patrols for inspections and compliance
Static guarding only when mandated
Steel security screens to prevent entry
Environmental sensors for early warnings
This approach:
Improves incident response
Meets insurer requirements
Reduces human risk
Lowers total cost
Related articles: Temporary CCTV towers vs traditional guards , Steel screens, boarding & access control explained
Real-World Scenarios Residential void
Steel screens
Weekly patrols
Alarm systemOutcome: Insurance compliant at minimal cost.
Vacant commercial unit
CCTV tower
Weekly patrols
No static guard
Outcome: Continuous detection without guarding expense.
Post-incident site
Temporary static guard
CCTV upgrade
Transition to patrols
Outcome: Insurer satisfied, costs reduced over time.
Which Is More Effective? There isn’t a one-size-fits-all answer. For most void properties:
Mobile patrols meet inspection requirements.
Static guards cover short-term, high-risk needs.
Technology fills the gaps between human presence.
Using either option on its own leaves blind spots.
Secure Your Vacant Property Efficiently We design risk-appropriate vacancy protection that includes:
Request a tailored security assessment, contact us
