How Often Should a Fire Alarm Be Serviced?

There are three layers to keeping a fire alarm system maintained. The first is a weekly test, carried out by the occupier, in which a different manual call point is operated each week to confirm the panel and sounders respond. This takes a few minutes and must be recorded in the fire safety logbook.

The second layer is periodic servicing by a competent contractor. BS 5839-1 recommends inspection and servicing at intervals not exceeding six months, so most buildings are visited twice a year, with larger or higher-risk systems serviced more frequently. The third layer is an annual inspection and test of the whole system, which the same servicing contractor usually folds into the schedule of visits across the year.

Weekly user tests can be done by a trained member of staff. Servicing, however, must be carried out by a competent person, which in practice means a specialist fire alarm contractor. BAFE SP203-1 is the recognised third-party certification scheme covering the design, installation, commissioning, and maintenance of fire detection and alarm systems, and many insurers and public-sector clients now expect it.

Whoever carries out the work should leave a clear service record and a certificate. A building with a maintenance contract but a weak paper trail can still fail an inspection, because the responsible person must be able to demonstrate that the system has been properly maintained.

Every test, service, fault, and false alarm should be logged. Good records are not just a compliance formality, they help the servicing engineer spot recurring problems, such as a detector in a kitchen or plant room that triggers frequent false alarms and erodes confidence in the system.

If your building suffers repeated false alarms, raise it at the next service visit. The fix is often a change of detector type or position rather than a wholesale system replacement, and reducing unwanted alarms is part of keeping the system effective.