A construction site is one of the most difficult types of facility to secure: its boundaries and configuration change as work progresses, contractor personnel are constantly changing, and liquid materials and expensive equipment are stored on the territory. Let us look at what tasks construction-site security must handle and which mistakes occur most often.

How a construction site differs from a finished facility

Approaches that work well for an office building or a warehouse break down on a construction site — because of the very nature of the site.

  • The perimeter is temporary and changes along with the stages of construction.
  • Several contracting organizations work at the same time, there are many people, and their makeup is constantly changing.
  • Materials — cable, metal, tools, fuel — are compact, liquid, and easy to sell off.
  • Equipment and machinery remain on site outside working hours.
  • Lighting and fencing are often temporary and get damaged during the work.
  • Responsibility for the assets is spread across the client, the general contractor, and the subcontractors — without clear agreements it ends up belonging to no one.

Key tasks of construction site security

  • Monitoring the integrity of the fencing and perimeter, and passing information about breaches to the responsible contractor for repair.
  • An access-control regime for workers and vehicles: lists of those admitted, and records of entry and exit.
  • Control over the removal of materials: any assets leave the site only under properly issued documents.
  • Guarding equipment, storage areas, and site cabins at night and on weekends.
  • Regular patrols of the territory with results and violations recorded.
  • Interaction with the representative of the client or general contractor on all identified problems.

Posts and patrol routes

The standard scheme is a stationary post at the entrance plus patrols of the territory. The number of posts depends on the area, configuration, and value of what is stored: as a rule, a separate post is needed for each active entrance, plus a patrol route covering the storage zones. The main risk period is night and weekends, when the site is empty. Routes and patrol times should be changed periodically: a predictable schedule helps a violator. The patrols themselves should be recorded — with check-ins at control points or photo documentation: this disciplines the staff and gives the client proof that the work is actually being carried out.

Technical means on site

A construction site is rarely fitted with fixed systems the way a finished building is, but temporary solutions pay for themselves: mobile video surveillance (CCTV) units at the entrance and in storage zones, floodlight illumination of the perimeter, and an alarm button at the post. Cameras on a construction site serve two purposes: they help security monitor distant zones and provide material for resolving disputes with contractors. When choosing equipment, take into account dust, vibration, and unstable power supply — ordinary office equipment fails quickly under such conditions.

Control over the removal of material assets

Security does not replace the contractors' inventory accounting, but it closes the key point — the gate. The procedure must be agreed in the contract and the post instruction: which documents grant the right to remove assets, who is entitled to sign them, and how to act in case of discrepancies. Vehicle inspection is possible only within the limits set by the contract and legislation, so this matter should be discussed with the security organization in advance rather than after the first conflict at the gate.

What to agree before work begins

For the security scheme to work from day one, before the posts go on site, agree the following with the security organization:

  • the site plan with posts, routes, and the security's zones of responsibility;
  • the list of persons authorized to sign documents for the removal of materials;
  • the procedure for admitting subcontractors' equipment and personnel;
  • communication channels and the procedure for notification during incidents;
  • how the security scheme changes when moving to the next stage of construction.

Separately, determine who on the construction side is responsible for interaction with security: without a single point of contact, matters are resolved slowly and responsibility becomes blurred.

Typical mistakes

  • Security is brought in after the first losses rather than from the moment materials and equipment are delivered.
  • One post for a large territory without patrols: the officer physically cannot see the distant zones.
  • There are no up-to-date lists of people and equipment admitted to the site.
  • Materials are removed «on a foreman's phone call» without documents.
  • Breaches in the temporary fencing go unrepaired for weeks.
  • Storage zones are not lit, and at night neither security nor cameras monitor them.
  • The post instruction is not updated when moving to a new stage of construction.

The earlier a security regime is established on site, the fewer materials are lost and the fewer disputes arise between the construction participants. KOS specialists will help assess the site, calculate the number of posts, and prepare a security scheme for a specific stage of work.