Commercial Fire Alarm Installation in London
Fire alarm installation, upgrades and servicing for London offices, shops, restaurants, warehouses and blocks of flats. Conventional and addressable systems to BS 5839-1, commissioned and handed over with a full certificate pack and logbook. Free site survey.
- Free survey, no obligation
- Fixed written quote
- Certificate issued after every visit
- BS 5839 Compliant
- Certificated Every Visit
- 24/7 Monitoring Available
- Full Documentation
Fire Detection Technologies
Smoke Detection
Optical and ionisation detectors for early fire warning in offices, corridors, and common areas.
Heat Detection
Rate-of-rise and fixed temperature detectors for kitchens, plant rooms, and dusty environments.
Manual Call Points
Break-glass units for manual alarm activation positioned at exits and escape routes.
Sounders & Beacons
Audible and visual alerting devices ensuring everyone is warned in case of fire.
Wireless Systems
No cables required — perfect for listed buildings and retrofit installations.
Addressable Systems
Pinpoint exactly which detector triggered for faster response and reduced investigation time.
From Assessment to Protection
Site Survey & System Design
We survey your premises, read your fire risk assessment and determine the appropriate BS 5839 system category.
System Design
We design a BS 5839-compliant system with the right detection and alerting for your building.
Install & Commission
Professional installation, full testing, and certification. Complete handover documentation.
Fire Alarm System Types
Conventional Systems
Cost-effective solution for smaller premises. Zones indicate area of activation.
Addressable Systems
Each device has unique address. Pinpoint exact location of fire or fault.
Wireless Systems
No cables required. Ideal for listed buildings and difficult retrofit scenarios.
What BS 5839-1 Asks of a Commercial Building
If you own, manage or run business premises in London, the Regulatory Reform (Fire Safety) Order 2005 makes you the responsible person. Your fire risk assessment sets the category of fire alarm the building needs, and BS 5839-1 sets how it must be designed, installed, commissioned and maintained.
The current edition, BS 5839-1:2025, tightened a few things that matter day to day: smoke detection rather than heat in rooms where people sleep, a cause-and-effect document handed to the user, any variations from the standard written into the logbook, and a certificate for every modification, including panel firmware updates.
We fit and service conventional and addressable systems, take over systems installed by other firms, and leave you with paperwork your insurer and fire risk assessor can follow.
Which Category Does My Building Need?
Office or shop?
Usually L2 or L3, as set by your fire risk assessment. Insurers often add a P category.
Restaurant or takeaway?
Heat detection in the kitchen and smoke detection elsewhere, so cooking does not set it off.
Warehouse or workshop?
Set by the fire risk assessment, with manual call points on the escape routes and property cover if your insurer asks for it.
Block of flats?
Many purpose-built blocks have no communal alarm by design. It depends on the building's fire strategy.
System failing its service?
We can usually upgrade rather than replace, and we will quote both so you can compare.
Managing a block? See fire alarms for blocks of flats. Letting HMOs? See HMO fire alarms for landlords.
Commercial Fire Alarms Across London
We install and maintain fire alarms in business premises across all 32 London boroughs from our base in Tooting, SW17.
Already have a system? See our fire alarm maintenance contracts. Looking for a local engineer? See fire alarm installation by borough.
Why Invest in Fire Detection?
Life Safety
Early detection gives occupants time to evacuate safely and emergency services time to respond.
Property Protection
Faster fire response means less damage to your building, equipment, and stock.
Legal Compliance
Meet your obligations under the Regulatory Reform (Fire Safety) Order 2005.
Insurance Requirements
Most commercial insurers require adequate fire detection. We ensure you're covered.
Addressable Systems: Know Exactly Where
When a detector activates, you need to know exactly where. Addressable systems show the precise location on the control panel — no guessing, no time wasted searching. Essential for larger buildings.
- Individual device identification
- Faster fire location
- Reduced false alarm investigation
- Fault location for maintenance
Wireless: Perfect for Heritage & Retrofit
Can't run cables? Don't want to damage historic fabric? Wireless fire systems offer full BS 5839 compliance without the cables. Battery-powered devices communicate via radio — clean, quick installation.
- No cable installation
- Preserves building fabric
- Quick installation
- Easy to expand later
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Protect Your People & Premises
Get a free site survey and BS 5839 system design. We'll ensure your building has the right fire detection to meet regulations and protect lives.
Free surveys, fixed written quotes, no obligation