Delta Force Group
    Intruder alarm system panel
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    Hard FM • Security Systems

    Intruder Alarm Systems

    Detection, alerting, and perimeter protection systems that secure your premises against unauthorised entry—designed and maintained as FM assets.

    Intrusion Detection

    Alarm System Technologies

    From traditional wired systems to advanced perimeter detection, we design and install alarm solutions tailored to your security requirements.

    Wired Alarm Systems

    Traditional hardwired alarm systems offering maximum reliability and immunity to wireless interference. Ideal for permanent installations in established buildings.

    High reliability
    No battery dependency
    Tamper resistant
    Long-term solution

    Wireless Alarm Systems

    Modern wireless alarm technology for buildings where cabling is impractical. Quick installation with flexible sensor placement.

    Minimal disruption
    Easy expansion
    Battery monitoring
    Encrypted signals

    Hybrid Systems

    Combined wired and wireless systems that offer the best of both technologies. Extend existing systems or adapt to building constraints.

    Flexible deployment
    System expansion
    Cost-effective upgrades
    Mixed environments

    Perimeter Detection (PIDS)

    Perimeter intrusion detection systems including fence sensors, beam detectors, and ground-based detection for early warning protection.

    Early detection
    Fence vibration sensors
    Infrared beams
    Buried cable detection
    Detection Technology

    Sensors & Detection Devices

    A range of detection technologies working together to provide comprehensive protection for your premises.

    PIR Motion Detectors

    Passive infrared sensors detecting body heat movement within protected areas.

    Door & Window Contacts

    Magnetic contacts that trigger when doors or windows are opened.

    Glass Break Detectors

    Acoustic sensors detecting the sound frequency of breaking glass.

    Vibration Sensors

    Detect attempts to break through walls, floors, or attack safes and ATMs.

    Integration & Escalation

    Connected Security Response

    Intruder alarms work most effectively when integrated with CCTV, monitoring, and response services for verified, rapid escalation.

    CCTV Integration

    Alarm events trigger camera recording and PTZ tracking to capture evidence of intrusion attempts.

    Monitoring Connection

    Signals transmitted to monitoring centre for 24/7 response and escalation procedures.

    Access Control Links

    Integration with access control for automatic arm/disarm based on access events.

    Mobile Response

    Alarm activation can trigger mobile patrol attendance for visual verification.

    Hard FM + Soft FM Integration

    The alarm hardware and sensors are Hard FM assets. Monitoring, response, and escalation sit within Soft FM operations. Together, they form a complete intrusion detection and response capability.

    FM Lifecycle

    Design, Installation & Maintenance

    Complete lifecycle management for intruder alarm systems—from risk assessment through installation and ongoing compliance support.

    Risk Assessment & Design

    Security risk assessment and system design tailored to your premises and threat profile.

    Installation & Commissioning

    Professional installation with full commissioning, testing, and user training.

    Planned Maintenance

    Regular inspections and preventive maintenance to ensure reliable detection.

    Compliance Documentation

    Certification, inspection records, and audit documentation for insurance and regulatory compliance.

    Related Services

    Complete Security Infrastructure

    Intruder alarms are most effective as part of a layered security approach combining detection, surveillance, access control, and response.

    Engineer maintaining alarm system

    Protect Your Premises

    From single-site systems to multi-location enterprises, we can design and deliver intruder detection that protects your people and assets.

    Call Us0208 004 7669