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

Protek Elite Defender Fencing