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50+ Years
experience
Emergency
services
Your Trusted Security Partner in London
Bell Security Systems has been a trusted name in security and fire safety since 1970. Founded by Graham Bell, our company has grown from a small team to a respected provider with offices across London, Essex, and Hertfordshire. We specialise in tailored security solutions, including advanced CCTV systems, alarm monitoring, and fire safety installations. Our SSAIB-accredited services ensure compliance with industry standards while prioritising customer satisfaction. With over 50 years of experience, we combine cutting-edge technology with a family-first approach to deliver reliable protection for homes and businesses.

Our team of certified professionals provides 24/7 monitoring, emergency response, and ongoing maintenance to ensure systems remain operational. We pride ourselves on transparent communication, no-obligation consultations, and bespoke solutions that address unique security risks. From initial assessment to installation and beyond, we guide clients through every step with expertise and care. Our commitment to quality has earned us partnerships with leading brands and recognition from insurers and law enforcement agencies alike.
Services
Security Alarms CCTV Surveillance Fire Alarms Alarm Monitoring DualCom Installation Bell Gold Service Emergency Response System Maintenance Smart Home Integration Fire Risk Assessments
Details
  • Year established: 1970
Highlights and features
  • 40+ years of experience in security system installations
  • Tailored solutions for residential and commercial properties
  • 24/7 alarm monitoring with police response options
  • SSAIB-certified technicians and insurance-approved systems
  • Free site assessments with no-obligation consultations
Associations and certifications
  • SSAIB
What people say
Professional and thorough Peace of mind when away Quick and efficient installation Expertise helped stay compliant Support above expectations
Services
Security Alarms
Our advanced security alarm systems provide comprehensive protection for homes and businesses. Featuring wireless technology, remote app control, and police response options, these systems offer immediate alerts and deterrence against intruders. Systems include pet-friendly designs and no ongoing subscription fees, with options like the Pyronix Enforcer and Quantum Wireless models. Professional installation ensures optimal coverage and reliability.
CCTV Surveillance
High-definition CCTV systems deliver 24/7 surveillance with night vision and remote access capabilities. Our installations include tamper-proof cameras, motion detection alerts, and integration with other security systems. Commercial solutions feature intelligent threat detection, while residential systems offer smartphone control and 31-day recording storage for complete peace of mind.
Fire Alarms
Compliant fire alarm systems ensure safety with smoke and heat detectors, emergency lighting integration, and automatic alerts. We install addressable systems from C-TEC and Kentec, featuring multi-zone coverage and remote monitoring. Regular maintenance services guarantee ongoing compliance with British Standards BS 5839 and BS 5266 for residential and commercial properties.
Alarm Monitoring
Professional monitoring services provide continuous protection with instant alerts and emergency response. Our UKAS-accredited Alarm Receiving Centre (ARC) verifies signals before dispatching police or keyholders. Systems support police response protocols and integrate with existing security infrastructure for enhanced protection during unoccupied periods.
Bell Gold Service
Exclusive security package for high-value properties featuring enhanced monitoring, bespoke system design, and personal security consultants. Includes priority support, regular maintenance, and advanced technology integration with discreet installation tailored to luxury homes and businesses requiring premium protection levels.
Questions
How quickly can systems be installed after assessment?
Most installations complete within 7-10 working days following free site assessment.
Do you offer monitored systems without contracts?
Yes, we provide both monitored and standalone systems with no mandatory contracts.
Can I control systems remotely?
All modern systems include smartphone app control for alarms, CCTV, and fire monitoring.
Are maintenance services available for existing systems?
Yes, we offer maintenance takeovers for systems installed by other providers.
Do you serve areas outside London?
We cover Essex, Hertfordshire, and surrounding regions with multiple local offices.
Is the site assessment really free?
Yes, all initial security assessments come at no cost with no obligation to proceed.