Our Services
Commercial Security Services Across London
Horizon Security Services Ltd provides SIA licensed guards, CCTV monitoring, alarm response, and tailored protection for commercial clients across Greater London. Whether you need ongoing site cover, front-of-house security, out-of-hours response, or rapid deployment to a new risk, we build practical security plans around your site, hours, and operating pressures.
- SIA licensed personnel and BS7858 vetted officers
- Fully insured service with 24/7 availability
- Rapid deployment across London for urgent cover
- Professional reporting, site audits, and clear communication
Security Services for Business
These are the core commercial security services businesses use to reduce risk, protect people and property, and maintain operational continuity. Each service page explains how we deliver coverage, where it fits best, and how to move quickly from enquiry to deployment.
Trusted by commercial clients who need dependable cover, responsive communication, and a security partner that understands compliance, reporting, and day-to-day site realities.
Security Guards
Professional manned guarding for commercial sites that need a visible deterrent, dependable access control, regular patrols, and clear incident reporting.
Construction Site Security
Service-led guarding for active construction sites, with officers focused on access control, patrols, plant protection, and out-of-hours site security.
Door Supervisors
SIA licensed door supervisors for venues that need controlled entry, conflict management, queue management, and professional customer-facing security.
Event Security
Service-led event security for venues, organisers, and live environments that need entry control, stewarding support, and visible on-site protection.
Retail Security
Service-led retail security for shops and commercial premises, helping reduce theft, support staff safety, and maintain a professional customer environment.
Warehouse Security
Service-led warehouse security for distribution and storage sites, with access control, perimeter checks, patrols, and overnight cover.
Corporate Security
Service-led corporate security for offices and commercial buildings, including reception cover, access management, and front-of-house support.
CCTV Monitoring
Remote CCTV monitoring to help detect issues early, verify incidents, improve response times, and strengthen oversight across your premises.
Why Choose Horizon
A Security Partner Built for Commercial Clients
Businesses do not just need guards on site. They need a provider that can assess risk, deploy suitable officers, communicate clearly, and support operations without creating friction. We focus on dependable delivery, practical reporting, and tailored coverage for commercial environments across London.
- SIA licensed officers matched to site requirements
- BS7858 vetting and fully insured service
- 24/7 coverage for planned and urgent needs
- Professional reporting and site audit support
- Transparent communication with commercial buyers
- London-wide deployment across key business districts
Need sector-specific guidance as well? See our industry pages for construction, retail, warehouses, corporate offices, events, and property management.
Alarm Response
Rapid response support for alarm activations, lockups, and out-of-hours incidents to help protect your premises.
Industry guidance: Property Management Security
Vacant Property Security
Protect empty buildings from trespass, theft, and damage with inspections, patrols, and tailored guarding plans.
Industry guidance: Construction and Property Management
Tailored Security Planning
We assess your risks, operating hours, public access, and site profile to recommend the right mix of guarding, monitoring, response, and reporting for your business.
Industry guidance: Corporate Offices, Retail, Warehouses, and Events
Service Selection Guide
Choose the Right Security Model
Prepared by Horizon Security Services Ltd for commercial buyers reviewing security options across London.
Commercial buyers often know the risk they need to address before they know the exact service name. This guide helps you match the right security model to your site profile, hours, public access, and reporting requirements. If your risks overlap, we can combine services into one operating plan.
Best fit by need
- Visible on-site deterrent: Security Guards
- Active site and asset protection: Construction Site Security
- Reception and office control: Corporate Security
- Retail loss prevention: Retail Security
- Warehouse and yard oversight: Warehouse Security
Best fit by operating model
- Remote oversight: CCTV Monitoring
- Out-of-hours activation response: Alarm Response
- Empty building protection: Vacant Property Security
- Licensed venue entry control: Door Supervisors
- Crowd and event management: Event Security
| Service | Best for | Typical deployment | Reporting and escalation |
|---|---|---|---|
| Security Guards | Commercial sites needing a visible security presence | Reception, gatehouse, patrol, access control, lock and unlock | Occurrence logs, incident reports, supervisor escalation |
| Construction Site Security | Active developments, compounds, plant and material protection | Gate control, perimeter patrols, delivery checks, out-of-hours cover | Site activity logs, incident reporting, escalation to site management |
| Corporate Security | Offices, headquarters, multi-tenant buildings | Front-of-house, visitor management, patrols, contractor control | Visitor records, incident reports, escalation to facilities or management |
| Retail Security | Shops and customer-facing environments | Shop floor presence, store entry monitoring, loss prevention support | Incident logs, theft reporting, escalation to store leadership |
| Warehouse Security | Distribution, storage, yards, logistics sites | Gatehouse, perimeter checks, vehicle control, overnight patrols | Access records, patrol logs, escalation for breaches or suspicious activity |
| CCTV Monitoring | Sites needing remote oversight and verification | Camera review, alarm verification, incident observation | Monitoring logs, verified alerts, escalation to keyholders or response teams |
| Alarm Response | Premises needing out-of-hours attendance | Alarm attendance, external checks, keyholding support | Attendance records, incident findings, escalation to client contacts |
| Vacant Property Security | Empty buildings, redevelopment sites, temporarily unused assets | Inspections, patrols, access checks, deterrent presence | Inspection reports, incident escalation, condition updates |
Who each service is for
On-site guarding services
Security Guards, Construction Site Security, Corporate Security, Retail Security, and Warehouse Security are best for businesses that need a visible officer presence, regular patrols, access control, and direct support for staff, visitors, contractors, or deliveries.
These services suit buyers who need accountability on site, clear handover procedures, and regular communication with management teams, facilities leads, project teams, or store leadership.
Monitoring and response services
CCTV Monitoring, Alarm Response, and Vacant Property Security are best for sites that are not always occupied, need out-of-hours oversight, or require a lower-footprint security model supported by escalation procedures and documented reporting.
These services are often used by property managers, landlords, facilities teams, and operators responsible for multiple sites or mixed occupancy portfolios.
Typical deployment scenarios
- Construction projects: gate control, contractor sign-in, perimeter patrols, plant protection, and overnight site checks. See Construction Security for Construction Companies in London.
- Corporate offices: reception cover, visitor management, contractor control, and front-of-house security. See Office Building Security for Corporate Offices in London.
- Retail environments: visible deterrence, staff reassurance, incident handling, and loss prevention support. See Security Solutions for Retail Businesses in London.
- Warehouses and logistics: gatehouse control, vehicle checks, yard patrols, and overnight cover. See Security Support for Warehouse and Logistics Operators in London.
- Property portfolios: inspections, vacant building checks, alarm attendance, and escalation to managing agents. See Security Support for Property Managers and Landlords in London.
- Events and venues: entry control, queue management, stewarding support, and incident escalation. See Event Venue and Organiser Security Planning in London.
How we assess a site before deployment
Before deployment, we review the site layout, access points, operating hours, public interaction, asset exposure, known incident history, and escalation contacts. This helps us recommend the right mix of guarding, monitoring, patrol frequency, reporting, and supervisor oversight for the environment.
What commercial buyers can expect
Typical deliverables
- Initial discussion around site profile, risks, hours, and priorities
- Recommended service model and deployment structure
- Officer duties aligned to the site and operating environment
- Site instructions, patrol expectations, and escalation contacts
- Regular reporting and communication with the client team
Escalation and reporting
- Occurrence logs and incident reports for relevant events
- Escalation to nominated client contacts when thresholds are met
- Supervisor involvement for service issues or operational changes
- Clear communication around access issues, suspicious activity, and site incidents
- Support for compliance-focused buyers who need documented oversight
Operational oversight in practice
Before a new assignment starts, Horizon Security Services Ltd carries out a practical site survey covering access points, weak spots, operating hours, delivery patterns, public interaction, lone-working risks, and the client escalation structure. That survey informs the deployment decision, including whether the site needs a static officer, patrol pattern, gatehouse control, front-of-house cover, alarm attendance support, or a combined model.
Deployment instructions are then set around the site rather than generic duties. Officers are briefed on access procedures, patrol routes, lock and unlock responsibilities, contractor control, incident thresholds, and who must be contacted if an issue affects safety, security, or business continuity. Where a site has multiple stakeholders, reporting lines are aligned to the nominated facilities lead, project manager, property manager, or duty contact.
Reporting and escalation
- Daily activity records and occurrence logs are maintained for patrols, access events, contractor attendance, and notable site activity.
- Incident reports are raised when thresholds are met, with escalation to nominated client contacts based on urgency and site instructions.
- Alarm activations, access breaches, welfare concerns, and suspicious activity are recorded with time, action taken, and outcome.
- Where required, updates are passed to the client during the shift rather than held back until the end of the day.
Supervision and handover
- Supervisor visits are used to check officer presentation, site understanding, log quality, and adherence to assignment instructions.
- Shift handovers are structured so incoming officers are briefed on incidents, access issues, outstanding tasks, and any client updates.
- Access logs and incident records are kept in a format that supports review, follow-up, and accountability.
- If site conditions change, deployment instructions and escalation routes are updated to reflect the operational reality on the ground.
This operational oversight is led by Tariq, Managing Director, and Omair, Operations Manager, with assignment planning, service checks, and escalation support aligned to the needs of each client site.
For buyers reviewing provider standards, our Compliance page explains licensing, vetting, insurance, and the operational controls that support dependable service delivery.
Documents available on request
- Relevant licensing and vetting information
- Insurance details
- Sample reporting formats
- Operational procedures and escalation structure
- Service-specific scope information for commercial buyers
Anonymised examples
- Central London office: front-of-house cover, visitor control, and incident reporting aligned to facilities management requirements.
- Outer London construction site: gate control, perimeter patrols, and out-of-hours checks to support plant and material protection.
- Multi-site property portfolio: vacant property inspections, alarm attendance, and escalation to nominated managing agent contacts.
Need Reliable Security Cover?
Speak with Horizon Security Services Ltd about your site, risks, operating hours, and required coverage. We provide tailored security solutions for commercial clients across London with 24/7 availability, rapid deployment, and a clear route from initial enquiry to service start.
SIA licensed personnel • BS7858 vetted officers • Fully insured • 24/7 availability • London-wide coverage