Fire Alarm Testing: Weekly Checks vs Servicing

“Fire alarm testing” can mean several different things. Mixing them up is a common cause of gaps in maintenance.

Routine user checks

These are short checks carried out by someone at the premises, usually weekly. A typical check involves operating one manual call point to confirm that the control panel responds and the alarm sounds, then recording it in the log book. The call point used is normally rotated so that different ones are tested over time. Staff need to know who is doing it, how to warn the building beforehand, and what to do if it does not work. If the system is connected to a remote alarm receiving centre, the centre should be told before the test so it does not treat the signal as a real fire.

It confirms basic operation. It does not tell you whether every detector is working, whether batteries are healthy or whether the building has changed in a way that affects detection.

Professional servicing

A service visit is a planned inspection and test by a competent engineer. It normally includes reviewing the log book and fault history, checking the control panel and standby batteries, testing a proportion of devices so that all are covered over the period, checking audibility and any links to other systems, and recording defects and recommendations. For non-domestic premises, BS 5839-1:2025 recommends servicing at intervals of approximately six months, and also covers the records to be kept.

Commissioning

Commissioning is the one-off testing and verification when a system is new or significantly altered. It is not the same as a service. See fire alarm commissioning explained.

Why one does not replace another

Routine checks do not replace servicing, because they do not test the whole system.
Servicing does not replace routine checks, because it happens only periodically.
Neither replaces commissioning after significant changes.

How often?

The standard's recommendation for non-domestic systems is a visit about every six months. The arrangement for a particular building also depends on the system, its design, the fire risk assessment and any insurer or licensing requirements, so it should be agreed and recorded for that building.

If you need servicing, see fire alarm servicing and maintenance.

This article is general information, not advice for a particular building. What a building needs depends on its use, fire strategy, risk assessment and the requirements that apply to it. Standards are revised from time to time, so check that you are working from the current edition.

Related service: Fire Alarm Servicing & Maintenance

Frequently Asked Questions

Do I still need a service visit if we test the alarm weekly?

Yes. A weekly test is a basic check by someone at the premises. It does not cover the full inspection and testing that a competent engineer carries out at a service visit.

Who is responsible for fire alarm testing?

The responsible person for the premises is accountable for ensuring the system is maintained. Day-to-day checks are often delegated to a named member of staff, and servicing to a competent contractor.

How often should the alarm be serviced?

For non-domestic systems, BS 5839-1:2025 recommends inspection and servicing at intervals of approximately six months, with every device tested at least once over the course of a year. The arrangement that is right for your premises also depends on the system, your fire risk assessment, your insurer and any licence conditions, and any departure from the standard should be agreed and recorded.

What should go in the log book?

Weekly tests, alarms (real and false), faults, service visits and any changes to the system or the building. A good log book makes servicing quicker and more accurate.

Fire Alarm Testing: Weekly Checks Versus Professional Servicing