Commercial Fire Alarms
BS 5839-1 fire alarm design, installation and certification for offices, warehouses, schools, care homes and multi-site estates.
Fire Alarm Systems
Built For Business
Commercial premises carry strict obligations under the Regulatory Reform (Fire Safety) Order 2005. AJ Secure designs and installs BS 5839-1 fire detection and alarm systems for offices, warehouses, schools, care homes, HMOs and multi-site estates — from straightforward L3 layouts to fully networked, ARC-monitored solutions.
Every project starts with the fire risk assessment and ends with a complete handover pack — design drawings, cause-and-effect matrix, commissioning certificate and logbook — so the responsible person is fully covered. We work outside of operating hours where required and integrate with sprinklers, AOVs, door retainers and voice alarm systems.
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What We Offer
End-to-end commercial fire alarm solutions, designed around your building and your risk profile.
Our Commercial Process
A proven five-stage process from initial fire risk review through to ongoing maintenance and call-out cover.
Fire Risk Survey
We review your fire risk assessment, building layout, occupancy and category requirement (L1–L5, P1–P2, M).
Fire Risk Survey
We review your fire risk assessment, building layout, occupancy and category requirement (L1–L5, P1–P2, M).
System Design
BS 5839-1 compliant design covering zoning, detector selection, cause-and-effect and ARC monitoring options.
System Design
BS 5839-1 compliant design covering zoning, detector selection, cause-and-effect and ARC monitoring options.
Installation
Containment, cabling and device installation carried out by qualified engineers with minimal disruption to operations.
Installation
Containment, cabling and device installation carried out by qualified engineers with minimal disruption to operations.
Commissioning
Full commissioning, cause-and-effect testing and handover with BS 5839-1 certification and as-fitted drawings.
Commissioning
Full commissioning, cause-and-effect testing and handover with BS 5839-1 certification and as-fitted drawings.
Maintenance
Ongoing 6-monthly servicing, 24/7 call-out and remote monitoring to keep the system compliant year after year.
Maintenance
Ongoing 6-monthly servicing, 24/7 call-out and remote monitoring to keep the system compliant year after year.
Ready to discuss your project?
Get a free, no-obligation quote — or speak to an engineer today.
Sectors We Cover
Experience across the full range of commercial and multi-occupancy environments.
Why Choose AJ Secure
BS 5839-1 Compliant
Designed, installed and commissioned to BS 5839-1 — the recognised standard for non-domestic fire detection.
Built For Business
Phased evacuation, zone identification and minimal-disruption installs designed around your operating hours.
Scalable & Networked
Single-panel or multi-site networked solutions that scale with you — from one unit to a full estate.
Full Documentation
As-fitted drawings, commissioning certificates, logbooks and handover pack delivered on day one.
Frequently Asked Questions
Related Services
Other security and fire safety solutions we provide.
Fire Alarms Installation Near You
We install and certify fire alarm systems across Gloucestershire, Bristol, Worcestershire and the West Midlands. Jump to your area:
Planning A Commercial Fire Alarm Project?
Get a free site survey and BS 5839-1 design quote. From single-site installs to networked multi-site estates — we'll scope it, deliver it and maintain it.