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View to construction site of two semidetached houses

Construction Site Security
Serving London
Daytime access, overnight patrols

Gate control by day, mobile patrols by night protect plant, tools and materials daily.

Call now for your security quote!

Flexible and affordable coverage options

DBS checked and fully trained staff

Flexible contracts for changing needs

Guarding Site Access, Day and Night

Construction sites need cover that changes shape depending on the time of day. During working hours, officers can be posted on the gate itself, checking every contractor and delivery against the site's approved list before they're let onto site, similar to the access control used on a manned reception. Once the working day ends and the site empties out, cover shifts to mobile patrols, moving between compounds and checking fencing, cabins and stored materials for signs of tampering. Both modes run from the same contract, so a site manager isn't juggling separate day and night suppliers, and cover can flex as the build moves through different phases.

A male and female K-9 security professionals with a Belgian Malinois outside a building un

What Gate and Patrol Cover Includes

Daytime cover typically includes signing in vehicles and contractors, directing traffic at a busy gate, and holding a record of who's on site at any point, useful if the principal contractor needs to account for numbers during an inspection. Overnight, the focus shifts to deterrence and response: patrols check high-value plant, react to triggered alarms, and can call police directly if forced entry is found. CCTV can be layered in for either period, covering blind spots such as material stacks or the compound fence line. A single shift report after each cover period, whether day or night, keeps the site manager updated without needing to chase for detail.

Low Angle View Of Security Cameras On Building
One of many construction sites in Beijing

Trusted on London Construction Sites

Sahi Security has covered construction sites, empty properties and commercial premises across London for over five years, running both daytime gate cover and overnight patrols depending on what a build needs at each stage. Every officer is DBS-checked before deployment and briefed on the specific site, including who's authorised for access and what counts as suspicious activity out of hours. Contracts flex around the build programme, so daytime gate cover can be added during a busy delivery phase and scaled back once the site is enclosed, with overnight patrols continuing throughout. New clients get 10% off their first contract, useful for trialling either type of cover before committing to the full programme.

Getting the Right Mix of Cover

A quote starts with a short call covering the site layout, delivery schedule, and whether the priority is daytime access control, overnight patrols, or both together. Officers can usually be deployed within days, useful whether the trigger is a new delivery of expensive plant, a recent break-in, or simply the site reaching a stage where the build holds more value. One contact manages the account throughout, so the mix of day and night cover can be adjusted as the build progresses without starting the conversation from scratch each time.

I worked with the company, and it was amazing to work with them. They treated me so well on site; they guided me about every step possible, and it was so overwhelming. I really recommend that you work with them.

Arrange Day or Night Site Security in London

Gate cover during the day, mobile patrols overnight, deployed fast whatever's triggered the call today.

Enquire About Site Security Cover

Low view of a security man behind a wire fence wearing a hardhat on a construction site

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SAHI SECURITY LTD, registered as a limited company in England and Wales under company number: 15372079.
Registered Company Address:
63 Kingsway, Manchester, England, M19 2LL.

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