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Alexandra Security Ltd

Alexandra Security Ltd

Quality Security Fencing & Gates Solutions, Made in The UK, Delivered Nationwide

+44 (0)1892 833001 Website

Contacts

Specification Support

Milly Sheffield

Senior Specification Consultant

01892 833 001

Technical Enquiry

Liam Chivers

Technical Estimating

01892 833 001

General Enquiry

Gemma Pilcher

Customer Support

01892 833 001

Marketing & Literature Support

Dave Bond

Marketing Manager

01892 833 001

Certification bodies

Established in 1986, Alexandra Security is a UK-based manufacturer and supplier of perimeter fencing and gate systems, supporting projects from early design through to construction and handover.

We work with architects, specifiers, security consultants, contractors and end clients to deliver perimeter security solutions that are proportionate, compliant, and clearly defined at specification stage.

Where Our Systems Are Specified

Our fencing and gate systems are used across a wide range of environments, including:

  • Critical infrastructure and utilities
  • Power generation and energy projects
  • Data centres and high-value assets
  • Education and sports facilities
  • Construction and temporary works

Product development is informed by user feedback, security risk considerations, and installation requirements, helping ensure systems perform effectively in real-world conditions.

RIBA-Aligned Design Support

We support perimeter security specification throughout the RIBA Plan of Work:

RIBA Stages 1–3 | Strategic Definition & Spatial Coordination

  • Early engagement to support risk-led, defensible system selection
  • Advice on performance requirements, security ratings, and layouts
  • Input to help avoid retrospective design changes during planning

RIBA Stages 3–4 | Spatial Coordination & Technical Design

  • In-house R&D, CAD and technical teams
  • Drawings, technical details and specification support
  • Bespoke adaptations to suit site, planning or operational constraints
  • Coordination with adjacent elements and wider site design

RIBA Stages 5–6 | Manufacturing, Construction & Handover

  • Reliable manufacture and programme support
  • Clear technical documentation
  • Responsive technical assistance during delivery

A Specification-Led, Risk-Aware Approach

We understand the pressures involved in delivering perimeter security systems as part of wider construction programmes. Protecting our partners’ reputations is central to how we operate.

  • Clear, consistent and honest technical advice
  • Dependable lead times and communication
  • Flexible, solutions-focused support when project conditions evolve

This approach underpins our core vision: to be the most trusted perimeter security brand in the UK.

Proven Experience Across Project Scales

Our experience spans:

  • Local authority, community and education projects
  • Commercial and industrial developments
  • National infrastructure, energy and government schemes

Regardless of project size, our focus remains the same:

  • Technical competence
  • Robust, well-defined systems
  • Dependable service and support

This is reflected in our strong, independently verified Feefo customer feedback.

Sustainability & Environmental Support

Sustainability is embedded into both our operations and our specification support:

  • Operationally carbon neutral across Scope 1 and Scope 2 emissions
  • Contributions to accredited UN carbon reduction programmes
  • Platinum EcoVadis rating (2025)
  • Sustainability and environmental support available for all products

Products

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Protek Elite Defender SR2/B3 High Security Fencing - High Security Fencing

Protek Elite Defender SR2/B3 High Security Fencing - High Security Fencing

Protek 358 Elite SR1/A1 Security Fencing System - Security Fence System

Protek 358 Elite SR1/A1 Security Fencing System - Security Fence System

Protek 868 Elite SR1/A1 Security Fencing - Security Fence System

Protek 868 Elite SR1/A1 Security Fencing - Security Fence System

SolarGard Pulsar Plus - Weld-Mesh Clamp Bar System

SolarGard Pulsar Plus - Weld-Mesh Clamp Bar System

Case studies

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Confidential Government Project

Confidential Government Project

New Build Gas Power Plant, England

New Build Gas Power Plant, England

Securing Potash Farm – Perimeter Fencing for a 5MW Solar Farm

Securing Potash Farm – Perimeter Fencing for a 5MW Solar Farm

Securing the Instavolt Superhub – Winchester

Securing the Instavolt Superhub – Winchester

Literature

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protek-elite-defender-sr2-datasheet

protek-elite-defender-sr2-datasheet

protek-358-elite-datasheet

protek-358-elite-datasheet

protek-868-elite-datasheet

protek-868-elite-datasheet

solargard-titan-datasheet

solargard-titan-datasheet

Trade names

  • Protek
  • SiteGard
  • SolarGard
  • Protek Elite
  • CraneGard