Commercial Intruder Alarm Systems Available Across the UK

Fortify ES offers Grade 2 and Grade 3-certified commercial intruder alarm systems, including wireless and wired detection, to help you protect your premises with 24/7 monitoring.

Businesses We Protect

Why Do Businesses in the UK Face Persistent Intrusion Threats?

Commercial break-ins affect thousands of businesses annually, with burglaries occurring in grocery stores, construction sites, and even corporate buildings. Beyond property damage, intruders also disrupt business operations and compromise employee safety. For this reason, commercial intruder alarm systems are essential for immediate detection and prevention.

Certified & Monitored Intruder Alarm Protection Provider

Fortify ES is a specialist provider of commercial intruder alarm systems with over 25 years of experience. We support large businesses, including brands such as Popeyes, by helping them reduce theft and intrusion risks through proactive security solutions.

Our wireless intruder alarms detect threats instantly and are paired with 24/7 monitoring services to keep your property safe.

Professional Security System Installers

We are professional security alarm installers in UK. Our Grade 2 and Grade 3 systems meet police and insurance requirements while helping to reduce theft, vandalism, and unauthorised entry. These systems can be integrated with CCTV verification and coordinated on-site security response for enhanced protection.

24/7 UK Monitoring Centre

Our wireless intruder alarm system is backed by a 24/7 monitoring team that detects intrusions and initiates a rapid response to minimise potential damage. We can verify threats using an integrated camera and coordinate keyholding or police response when required.

Multi-Sensor Detection Technology

Fortify ES connects intruder alarms to a cloud-based monitoring platform to help protect multiple locations. Multiple sensors create a layered detection system that delivers comprehensive coverage against potential threats.

Integrated Security Platform

Our intruder alarm systems seamlessly integrate with CCTV for visual verification and access control to monitor unauthorised attempts. In an emergency, it enables coordinated response across locations through integrated system communication.

Advanced Threat Detection Components for Layered Protection

Our professional intruder alarm systems combine multiple technologies to deliver proactive protection.

Motion Sensors (PIR)

Passive infrared technology detects movement through heat signatures with dual-element sensors and anti-mask protection for comprehensive monitoring. 

Best for: Internal rooms, corridors, after-hours areas

Key Features:

  • Reliable detection technology
  • Pet-Immune options available
  • Anti-tamper functionality

Magnetic Sensors

Our intruder alarm installation also includes magnetic sensors that monitor entry points, such as doors and windows, and can be connected via wired or wireless links.

Best for: All access points, vulnerable windows, fire exits

Key Features:

  • Perimeter defence layer
  • Concealed installation options
  • Battery backup operation

Glass-Break Detectors

Our advanced commercial intruder alarm system also includes acoustic sensors that detect breaking glass by analysing frequency across multiple panes.

Best for: Shop fronts, glazed areas, exposed windows

Key Features:

  • Pre-entry detection
  • Multi-pane coverage
  • Frequency filtering technology

Control Panels (Grade 2 & 3)

Professional intruder alarm service with panel sensors, user codes, and monitoring communication through encrypted networks.

Best for: All commercial premises requiring compliance

Key Features:

  • Zone management capability
  • Expandable capacity
  • Secure protocols

External Sirens and Strobes

High-decibel devices that provide threat alerts via audible warnings and visual indicators, with tamper protection.

Best for: External deterrence, neighbour notification

Key Features:

  • Tamper-proof building
  • Battery backup
  • Weather resistance

Keypads and Remote Control

Our smart user interface enables arming through PIN codes, proximity tags, or smartphone apps with zone selection.

Best for: Multi-user environments, remote management

Key Features:

  • Partial arming zones
  • Smartphone integration
  • User code management

Professional Monitoring & Response Coordination

Fortify ES is a leading intruder alarm company in the UK offering flexible monitoring response systems tailored to meet different risk levels.

Bells-Only System

The Bells-Only System provides acoustic alarm activation without a monitoring connection. It is ideal for budget-conscious premises that operate under local security supervision.

Keyholder Response

Our 24/7 monitoring centre alerts designated keyholders to immediate site attendance and investigation with the client to ensure a coordinated response.

Monitoring with Police Response (URN)

Full monitoring with police liaison for verified alarms at high-risk buildings or premises requires a Unique Reference Number (URN). This registration enables direct police response when alarm activations are confirmed.

Monitored with Guard Response

Security guards conduct an immediate professional investigation of the site to secure the area against further threats and preserve evidence.

Alarm Verification

Audio verification through listen-in microphones, video verification via integrated CCTV, and sequential sensor activation reduce false alarms while maintaining genuine threat detection.

Insurance Compliance & Alarm Grading Standards

Commercial intruder alarm systems are subject to important regulatory requirements, and we understand them all to offer insurance-approved or legally compliant threat protection solutions.

Seamless Intruder Alarm Integration for Complete Security

Smart commercial security systems require integration, and we offer smart intruder alarms that integrate seamlessly with your security ecosystem.

Industry-Specific Threat Protection for Everyone

Different industries face different risks, and we mitigate them with tailored commercial intruder alarm systems.

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Retail & Leisure

Perimeter protection, zone-specific arming, and glass-break detection for after-hours stock security.

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Construction Sites

Wireless intruder alarm systems in the UK are deployed for temporary sites with weatherproof sensors.

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Educational Facilities

Zone-based arming with access control integration that meets safeguarding requirements.

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High-End Residential Buildings

Discreet sensors, smart home integration, and pet-immune detection with smartphone control.

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Agricultural Facilities

Wireless monitoring systems for remote agricultural locations.

Professional Intruder Alarm Installation & Maintenance

We offer reliable theft and intrusion protection with expert installation and ongoing intruder alarm servicing.

Trusted by Customers Across the UK

Frequently Asked Question

What alarm grade do I need for my business?

You can consider a Grade 2 intruder alarm system if the risk is low to medium, and a Grade 3 system if the risk level is medium to high, suitable for high-value assets.

Our intruder alarm systems are professional and comply with insurance policy requirements, providing complete peace of mind.

Monitored alarm systems connect to alarm receiving centres. When an alert is triggered, verification protocols and coordinated response procedures are initiated.

Our intruder alarm system seamlessly integrates with third-party applications and CCTV cameras for visual verification.

You can manage the alarm system, cancel false alarms, or initiate a response from anywhere using a smartphone, tablet, or laptop.

Schedule Your Complimentary Site Survey Today

Consult Our Security Expert Now!

Talk with specialists in intruder alarm installation and receive insurance-approved protection designed for your business.