Fire Alarm Servicing and the Person in Control

Installing a fire alarm system creates an obligation that outlasts the installer. Somebody has to keep it working, keep evidence that it works, and be able to produce that evidence when a fire officer, an insurer or a solicitor asks for it.

Where the duty sits

Irish fire safety legislation places a duty on every person having control over a premises to take reasonable measures to guard against the outbreak of fire and to ensure the safety of people on the premises. That duty attaches to control of the building rather than to ownership, which catches out landlords and tenants in roughly equal numbers.

Workplace health and safety legislation adds employer duties on top, and building control requirements apply at the point a building is constructed or materially altered. In practice, more than one party often holds a slice of the responsibility, and the gaps between them are where systems fall out of maintenance.

The first thing to establish for any building is who that person is, by name. If nobody can answer that question, the answer in an investigation will be whoever was closest to the decision.

Routine testing and servicing

Two separate things happen to a working system, and they are often confused.

User testing is done by people on site, weekly, and takes a few minutes. A manual call point is operated to confirm the system responds, rotating through the call points so that each is tested in turn over time. The result goes in the logbook.

Servicing is done by a competent engineer at defined intervals, and is a different exercise entirely - inspecting condition, function-testing devices to a planned schedule, checking standby power, reviewing the logbook and picking up faults that a weekly test will never reveal. The servicing regime, including the intervals, is set out in I.S. 3218 and should be stated in your maintenance contract. It is worth checking that the contract you hold actually matches what the standard asks for rather than a frequency someone chose commercially.

Note that the Irish and UK regimes are not identical. If your maintenance provider works across both jurisdictions, confirm which standard your contract is written against.

The logbook

The logbook is the evidence. It records weekly tests, service visits, faults, false alarms and any modification to the system. An unmarked logbook does not mean nothing happened; it means nothing can be proved to have happened, which amounts to the same thing when it matters.

Keep it on site, keep it current, and make sure whoever does the weekly test knows they are meant to write in it. This is the single most common failure in otherwise well-maintained buildings.

False alarms are a maintenance issue

Persistent false alarms are treated as an inconvenience until people start ignoring the sounders or disabling zones, at which point the system has stopped protecting anyone. They usually indicate detector type or siting that does not suit the environment, contamination, or a change of building use that the system was never revisited for.

The 2024 edition of the standard simplified its false alarm guidance. If a system generates repeated unwanted alarms, that is a design or maintenance problem to be diagnosed, not a nuisance to be tolerated.

Training

The Fire Alarm Course for Beginners covers system fundamentals and what maintenance involves. For the UK side of a cross-border operation, see Level 3 BS 5839-1.

For the documentation that should exist from handover onward, see the Annex B confirmation documents.