Integrated Security Solutions

ISS Schemes

ISS

Integrated Security Solutions

At United Infrastructure, we specialise in delivering end-to-end Integrated Security Solutions (ISS) and associated infrastructure works for clients operating critical national infrastructure. As cyber-attacks, malicious activity and extreme weather events become increasingly frequent, the need for robust, fully integrated security systems has never been greater.

Our expertise ensures that major infrastructure project sites are safeguarded through resilient, intelligent protection measures tailored to each client’s operational environment.

We manage and deliver projects across the United Kingdom through a structured two-phase approach, enabling us to provide a comprehensive, high-quality service from initial design through to implementation and long-term operational support.

Phase 1

Phase 1: Design and enabling works

Our design phase allows us to shape secure and compliant solutions that optimise the protection of critical infrastructure assets. From day one, we ensure every element meets the relevant regulatory, technical and operational standards.

As Principal Contractor and Principal Designer, we take full ownership of this stage, acting as the single point of contact and providing complete project governance. This includes managing programme development and scheduling, establishing project control systems, defining communication protocols, and setting up robust document management, reporting and audit processes.

To support the design and ensure seamless progression into construction, we undertake a range of desktop and on-site surveys. These are carefully planned to align with the programme, reduce risk, and eliminate delays caused by unforeseen constraints.

Alongside survey work, we carry out early enabling activities as required. These include engaging with key project stakeholders and participating in essential safety and planning forums such as HAZID, HAZCON and other preparatory meetings.

Phase 2

Phase 2: Delivery – ISS, civils and technology integration

Once design and enabling works are complete, we progress into the full delivery phase. This stage focuses on installing the complex, critical ISS infrastructure that underpins a secure and resilient operational environment. Our team takes a collaborative and transparent approach to delivering the physical, civil and technical components, upholding quality, safety and regulatory compliance at every stage to ensure operational readiness.

All civil works are delivered in-house, overseen by a dedicated Senior Competent Officer on site. Typical activities include constructing kiosk bases, installing camera tower foundations, forming concrete sills for security fencing and completing electrical ducting.

Once a substantial portion of the construction stages have taken place, our technical teams mobilise to install electrical systems and integrate complex security technologies. Through clear communication and meticulous coordination, we ensure a smooth delivery process and seamless, reliable system performance.

ISS Expertise

Our delivery expertise

  • Site establishment
  • Kiosk bases and camera tower bases
  • Concrete sills for fencing
  • Electrical ducting and underground services
  • General civil engineering to support ISS deployment
  • All temporary works
  • Gallagher perimeter and internal fencing
  • Security barriers and gates
  • Access control infrastructure
  • Perimeter fence detection systems (PIDS)
  • Security lighting systems
  • Electrical & Instrumentation
  • Electrical installation (low voltage and power distribution)
  • UPS (Uninterruptible Power Supply) systems
  • Instrumentation installation
  • MAP (Manual Access Point) systems
  • CCTV and VSS (Video Surveillance Systems)
  • Non-perimeter ISS cameras
  • Intruder detection systems
  • Gallagher central control rooms (ISS room infrastructure)
  • Perimeter ACS
  • Internal ACS

Our clients

Proud to work with

National Gas logo
ENI logo
Cadent logo
exolum logo
Sembcorp logo
Manchester Airport logo
net zero teeside logo
bpa logo
northern Endurance partnership logo
Wales and West Utilities logo
Northern Gas Networks logo
SGN logo
BP logo

News

Our latest news

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26/03/2026

United Infrastructure to deliver cathodic protection upgrade at Bacton Gas Terminal

United Infrastructure is pleased to announce that it has commenced a major upgrade to...

19/02/2026

United Infrastructure secures Cadent contract at Bromley-By-Bow Gasworks

United Infrastructure is pleased to announce the acquisition of Simkiss Group, a leading engineering...

22/01/2026

United Infrastructure appointed to Wessex Water Minor Works Infrastructure Framework

We have been appointed by Wessex Water to deliver design-and-build services under its Minor...

14/10/2025

United Infrastructure secures £30m Affinity Water AMP8 Capital Framework

United Infrastructure has been awarded a £30 million contract by Affinity Water on its...

09/10/2025

United Infrastructure to deliver roll out of smart meters for Northumbrian Water

United Infrastructure has been awarded a contract by Northumbrian Water as its smart metering...

02/10/2025

United Infrastructure completes complex pipeline installation beneath Ulverston Canal

We are pleased to announce the successful delivery of a major new gas pipeline...

Have a question?

Get in touch

Whether you have a specific project in mind or if you’d like to find out more about our Integrated Security Solutions and associated works, we’d love to hear from you.

Accreditations

Proud of our accreditations

Achilles carbon reduce certified logo
Achilles logo
bsi iso 14001 logo
bsi logo
CEMARS logo
Construction online gold member logo
ICES approved partner logo
information commissioners office logo
IGEM institute of gas engineers and managers logo
North West Hydrogen Alliance logo
pipeline industries guild logo
Rospa gold award
USAG logo
ssip logo

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