The short answer
Yes. Construction security should change with the project because the perimeter, workforce, access routes, inventory, and attractive targets rarely remain static. Early work may need gate and perimeter attention; later phases may introduce copper, appliances, tools, fuel, finished interiors, or multiple subcontractors. A shutdown, weather delay, theft incident, or change in neighborhood activity can also alter the risk quickly.
What to know
Build review points into the security plan instead of waiting for a failure. The contractor and security supervisor should reassess coverage after phase changes, major deliveries, perimeter modifications, incidents, or changes to working hours. Possible adjustments include moving patrol checkpoints, adding or removing a fixed post, changing shift times, improving lighting, relocating a camera tower, updating authorized-access lists, or revising escalation contacts.
Arrow describes its construction service as planning for the site’s changing needs and offers flexible short- and long-term scheduling. Any change should still be documented through revised post orders or a written service amendment. The goal is not automatically more guards; it is to keep controls aligned with the current risk while avoiding obsolete duties and unmonitored gaps.