Fire Alarm Services in London

The service can include new fire alarm installation, additions, alterations, detector or call point changes, system testing, planned maintenance, fault assessment and agreed repairs. The exact scope depends on the property and system.

BS 5839-1:2025 applies to fire detection and alarm systems in non-domestic premises. BS 5839-6:2019+A1:2020 applies to domestic premises. The correct scope depends on the building and agreed fire safety requirements.

The category or grade cannot be selected from property size alone. It depends on the building use, occupancy, fire risk assessment, evacuation approach and purpose of the system.

Yes, a new system can be installed within an agreed design and service scope. We need the property details, required coverage, access information and any fire risk assessment or design brief available.

Existing systems can be assessed for additions, alterations or replacement equipment. Compatibility, device capacity, wiring, records and the reason for the change affect what can be included.

Depending on the agreed design, the work may include control equipment, smoke or heat detectors, manual call points, sounders, visual alarm devices, standby power and agreed interfaces.

Testing and planned maintenance can be arranged for existing systems. The visit may include accessible device checks, panel indications, power supplies, standby batteries, fault records and agreed functional tests.

The maintenance schedule depends on the premises, system, applicable standard, manufacturer information and fire safety arrangements. We confirm the agreed service scope before the appointment.

We review the available system information, inspect accessible equipment, complete the agreed tests, record faults and explain any repair, replacement or further investigation recommended.

Yes. Tell us about occupants, working hours, restricted areas and any planned alarm tests so access and disruption can be managed before the visit.

This page covers electrical work on fire detection and alarm systems. A fire risk assessment or fire strategy is separate unless it is specifically included in the agreed service scope.

Testing identifies the system condition and reported faults. Replacement parts, repairs, additional devices and wider alterations are agreed and quoted separately where required.

Provide the postcode, property type, building use, existing panel or alarm type, known faults, approximate device count, access restrictions and any fire risk assessment, zone plan or service records available.

An active alarm or suspected fire is not a routine service request. Follow the building’s emergency procedure and contact the emergency services where fire is suspected. Report system faults separately once the immediate situation is safe.