Construction site security checklist

Why sites are targeted

Building sites hold valuable plant, tools, fuel, cable and materials, often behind temporary fencing and left unattended overnight. Thieves know that sites are quiet at weekends and over bank holidays. Trespassers, including children, can also be seriously hurt. Under the Construction (Design and Management) Regulations 2015, principal contractors must take steps to prevent unauthorised access.

1. Perimeter and access

• Continuous hoarding or fencing with no gaps, and regular inspections.
• As few entrances as possible, locked out of hours.
• Clear signage and good lighting at gates.
• A signing-in process for every worker, visitor and delivery.

2. Plant, tools and fuel

• Immobilise plant and remove keys at the end of each day.
• Mark and register machinery, for example through the CESAR scheme.
• Store tools in locked, anchored containers away from the fence line.
• Keep fuel in secure, locked bowsers or stores.

3. Materials and deliveries

• Order high-value materials such as copper and boilers as close to installation as possible.
• Log deliveries in and out and check them against orders.
• Keep valuable stock in locked areas or fitted quickly.

4. Surveillance and guarding

Cameras and alarms deter and record, but they need someone to respond. The most effective sites combine technology with people:

• CCTV towers or cameras monitored by licensed operators. See CCTV monitoring.
• Static guards at the gatehouse and on night patrol. See construction site security.
• Mobile patrols for smaller or dormant sites. See mobile patrols.

5. Review as the build progresses

Risks change. Early on, plant and fuel are the main targets; later, cable, boilers, kitchens and finished interiors. Review your security plan at each stage and whenever there is an incident.

Frequently asked questions