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Project Overview
Client
Defence and Aerospace Manufacturer
Location
UK
Date Complete
2026
Sector
High Security
Background
A UK based aircraft and aviation equipment manufacturer operating from a large, highly visible facility that occupies a prominent position on one of the main arterial routes into the city centre required a rapid upgrade to its external perimeter. The site includes multiple production buildings, service yards, and transport access points, with a low boundary wall demarcating the front of the site. After relocating to the site in 2023, which had previously been occupied by another manufacturer, a new risk assessment identified the existing wrought iron railings above a substantial masonry wall at the front of the site as insufficiently secure.
As with many advanced manufacturing sites, the facility balances two competing priorities. On one hand, it must remain operationally efficient, accessible to staff, and visually consistent with established corporate standards. On the other, it needed a robust and future-proofed security solution capable of responding to changes in external risk without disrupting day-to-day activity.
The existing railings were bespoke in design and finished in corporate colours, contributing positively to the appearance of the site. However, over time they had begun to deteriorate and often required repainting to maintain their visual appeal. At only 1.2 metres high, the existing railing system also no longer provided a level of protection appropriate for the risk profile of the site.
As a supplier operating within the aviation and aerospace sector, the manufacturer provides equipment to the defence industry. In response to recent global events, organisations involved in the defence supply chain have faced an increased requirement to strengthen perimeter security. Protests and heightened threat levels have made robust, reliable, and visually appropriate boundary protection essential.
The contractor approached us for an engineered fencing system that could be installed over the existing boundary wall and integrated seamlessly into the site. All work needed to be completed with discretion and minimal disruption.
A key requirement was that the finished installation aligned with the site’s established colour palette. The client specified a unique blue finish to match surrounding buildings, existing infrastructure, and internal branding, ensuring the perimeter enhancement looked intentional rather than reactive.
Challenge
Although the overall requirement was clear, the technical constraints of the site made the project unusually complex.
The fencing was to be installed above the existing wall that ran along a significant length of the perimeter. During pre order investigations, including exploratory digging at key locations, it became clear that the existing wall foundations were both wide and complex, incorporating additional underground obstructions. The client was keen to retain the wall and avoid unnecessary disruption, while ensuring the new fencing did not compromise structural integrity. This meant that drilling or fixing close to the wall line risked compromising its integrity. This ruled out conventional over-wall post designs that fit tightly or symmetrically to the wall face.
In addition, external features like telecommunications control boxes and road signs beyond the fence line created variations in risk at specific points; the client required varying panel heights along the run to address these changes while still maintaining a coherent visual line.
The greatest challenge lay in the post design. The site constraints meant the posts had to be cranked in an unusual configuration. Rather than sitting close to the wall the cranked posts needed to sit significantly wider than the wall. This allowed the fixing points to be set clear of sensitive foundation zones while still supporting the fencing at the required height and load rating.
This was not an off-the-shelf configuration. It required careful structural consideration to ensure the posts could resist imposed wind loads and long-term fatigue, all while maintaining the clean appearance expected of a high profile industrial site.
Solution
To meet these challenges, a bespoke Securi-Mesh® mesh security fencing solution was developed using our in-house engineering capability. The fencing was supplied at a height of 1.8 metres in standard areas, with increased heights of between 2.7 metres and 3 metres in locations where climbing aids were present, including road signage and nearby utilities such as pylons and masts. All panels were 2.5 metres wide, resulting in a total continuous fence line of 100 linear metres.
Securi-Mesh was selected for its proven strength, rigid welded construction, and increased resistance to climbing, tampering, and cutting. Its visual transparency ensured that sightlines were maintained for operational and safety reasons, while still providing a clear physical boundary. The mesh specification was our standard anti climb configuration, with 76.2 by 12.7mm aperture mesh manufactured from 4mm wire. Panels were overlapped at each post and secured using clamp bars with anti vandal stainless steel fixings to provide a robust and tamper resistant installation.
Our engineering team designed a series of bespoke posts with a deeper internal crank specifically for this project. This approach enabled the fencing to be fixed clear of the wall foundations while keeping the mesh flush with the front face of the wall.
Finite load considerations were built into the design process to ensure that the posts could accommodate the increased moment created by the cranked design. Despite their non-standard design, the posts were manufactured to blend visually with the fencing system and were finished powder coated to BS EN 13438, in a bespoke RAL 5014 blue to match the client’s corporate branding and existing fencing installations across the site.
The panels and posts were installed over the existing wall with precision, ensuring consistent alignment and secure fixing throughout the full run. Despite the complexity of the post configuration, the finished fence line presents as clean, intentional, and uniform. The effective fence height was increased and the wall itself no longer acted as a climbing aid.
Outcome
The completed installation delivered a significant upgrade to the site’s perimeter security while respecting the existing architecture of the site and maintaining a consistent corporate appearance and without drawing unnecessary attention.
From a technical standpoint, the bespoke cranked posts solved a problem that would otherwise have required costly wall alterations or compromise on fence positioning. By engineering the solution in house, it was possible to meet all structural and security requirements while respecting the constraints of the existing site.
The client now benefits from a 100m continuous Securi-Mesh perimeter fence that is robust, durable, and adaptable to future operational needs. Importantly, the solution was supplied with our trademark 25 year Service Life Guarantee.
This project is a strong example of how security fencing does not need to be generic. With the right expertise, it can be designed to respond precisely to site conditions, aesthetic requirements and long-term performance expectations.
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