Guard service (sometimes also called a watch service) is the traditional name for physical site security. In practice it is the same work: a guard holds a post or patrol route, checks entrances and vehicle gates, records movement of people and responds to incidents according to shift instructions.
The term is still used mainly in industry, public tenders and older contracts. Modern offers speak of physical or site security instead; the service content differs only in the details of the brief.
What a guard service typically includes
- a permanent post (gatehouse, reception, gate) or regular patrols,
- entrance and vehicle gate checks and visitor records,
- supervision of property, the perimeter and risk spots,
- incident reporting and handling according to operator instructions.
The scope always follows the contract and shift instructions. The presence of a security guard does not in itself mean that they monitor the entire site or assume responsibility for every operational problem. The brief should specify the post, patrol checkpoints, entrance rules, how events are recorded, contact people and the threshold for calling the police, fire and rescue service or emergency medical services.
Review and sources
Verified sources for this term
Updated September 4, 2026
Example and common misunderstanding
Example of use
During a night shift at a manufacturing site, the officer records vehicle entries, visits patrol checkpoints at scheduled times, and logs and reports faults or unusual findings to the client’s contact person.
Common misconception
Ordering hours without defining duties, checkpoints and escalation. The client may then expect a different scope from the one given to the officer in the shift instructions.