Utilities & Infrastructure

Security Fencing for the Utilities & Infrastructure Sector

Utilities and infrastructure are the backbone of modern society. As essential national assets, they require the highest levels of protection—not only to safeguard critical services but also to ensure public safety and the resilience of the network.

At Alexandra Security, we specialise in the design and supply of fencing and gate systems for power generation facilities, water treatment plants, telecom sites, and key government infrastructure projects. With a proven track record on high-profile schemes across the UK, we deliver large-scale, technically complex, and security-critical solutions trusted by clients at the highest level of the sector.

Proven Experience on Major Utility Projects

Our expertise is demonstrated through direct involvement in some of the UK’s most significant infrastructure programmes:

• Sizewell C Nuclear Power Plant, Suffolk – Supply of over 3,000 metres of marine-coated security fencing, purpose-engineered for coastal environments where maximum corrosion resistance and long-term durability are essential.
• New Build Gas Power Plant, England – Supplied over 2,500 metres of high-security mesh and palisade fencing, along with access gates. The project required solutions tailored to areas with differing risk levels, ensuring that each zone was protected with the most suitable fencing system for its security classification.
• Confidential Government Project (January 2026) – Delivery of a large-scale package of over 4,000m of LPCB security-rated fencing as well as 57 security gates, designed to meet stringent government security classifications and tested to withstand advanced levels of attack.
• UK Electrical Grid Sub-Stations – We have a long-standing partnership with the UK power network, supplying secure fencing solutions for both the maintenance of existing electricity substations and the development of new builds. The palisade security systems we provide are designed to meet exact client specifications and are installed by highly accredited subcontractors.

These projects highlight our ability to operate under the strictest compliance frameworks, delivering robust, durable, and fully certified solutions—on time and in alignment with complex contractor requirements.

Comprehensive Solutions for Critical Infrastructure

We offer a full range of perimeter security solutions to support every aspect of utility and infrastructure protection:

• High-security fencing certified to British and LPCB standards
• Access-controlled gates for both operational and emergency requirements
• Specialist marine-grade coatings for extreme environmental conditions
• Traffic management systems to safeguard both site activity and the public

Whether securing a nuclear facility, a waterworks site, or a power distribution substation, our systems are designed to deliver uncompromising protection, reliability, and compliance.

All Alexandra Security systems are manufactured in full compliance with British Standards, ensuring consistent quality and safety. For further assurance, every product is backed by our 15-year guarantee, giving main contractors and operators confidence that their perimeter will perform long after installation.

Technical Design and Project Support

We recognise that each infrastructure project comes with its own unique security challenges. Our experienced team works directly with main contractors, specifiers, and government agencies to design tailored solutions supported by comprehensive CAD drawings for review and approval before manufacture.

From early-stage consultation through to on-site delivery, our project support team ensures seamless integration with the wider infrastructure programme.

For utility and infrastructure projects where security and reliability cannot be compromised, Alexandra Security is the trusted partner for high-level fencing and gate solutions.

• Experience on nuclear and government-level projects
• Delivery of large-scale, LPCB-rated and marine-grade solutions
• All systems manufactured to British Standards and backed by a 15-year guarantee
• Proven track record with Tier 1 contractors and public sector clients
• Full technical support with CAD designs and compliance documentation

If you are unsure of your specification requirements, our customer support team is on hand at all times to answer any queries and help you to design the most effective solution for your project. To discuss your project requirements, get in touch with our customer support team, and they’ll see how we can assist you.