Systems that watch over your building, even when you can't.
JJ Security Systems designs, installs and maintains fire alarm, fire safety, CCTV, intruder alarm and access control systems for London's commercial and residential properties — backed by 24/7 monitoring and qualified, experienced engineers.
Fire safety and security, under one roof.
Most buildings need both — so we engineer them together, from a single site survey to a single maintenance contract.
Fire Alarm Systems
Design, installation and BS 5839-compliant maintenance of addressable and conventional fire detection systems.
Extinguishers & Fire Safety Equipment
Supply, servicing and annual certification of extinguishers, fire blankets and signage across your site.
Emergency Lighting
Self-contained and central battery emergency lighting, tested and logged to satisfy fire risk assessments.
Fire Risk Assessments
Site-specific assessments carried out by qualified assessors, with a clear, prioritised action plan.
CCTV Surveillance
HD and IP camera systems with remote viewing, night vision and analytics — sized to your building.
Intruder Alarms
Wired and wireless intruder detection, monitored around the clock with police-response options.
Access Control
Keypad, fob and biometric entry systems for single doors through to multi-site estates.
24/7 Monitoring & Response
Alarm signals routed to our monitoring centre with a defined call-out and keyholder response plan.
From first call to ongoing cover.
The same five stages, whether it's a single flat or a multi-storey commercial site.
Survey
An engineer visits site to assess the building, risks and existing equipment.
Design
A system is specified to the relevant British Standard and your budget.
Install
Certified engineers fit and commission the system with minimal disruption.
Certify
You receive full certification and documentation for insurance and compliance.
Maintain
Scheduled servicing and 24/7 monitoring keep the system compliant year-round.
Engineers based in London, working across every borough.
Our response teams cover Central, North, East, South and West London — with priority call-out times for existing maintenance clients.
- Hackney
- Tower Hamlets
- Islington
- Camden
- Westminster
- Southwark
- Lambeth
- Newham
- Waltham Forest
- Greenwich
- Wandsworth
- Ealing
- + Greater London
Built for the buildings that need it most.
- Commercial offices FIRE + SECURITY
- Retail & hospitality FIRE + SECURITY
- Residential blocks & landlords FIRE + SECURITY
- Construction sites SECURITY
- Warehouses & logistics FIRE + SECURITY
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Request a site survey.
Tell us about your building and what needs covering — a member of the team will get back to you within one working day. For emergencies, call the number below directly.