Fire Alarm Servicing and Maintenance: What Happens on a Visit

What the engineer does on a visit

More than pressing a call point and listening for the bell.

1. 1Read the logbook. We look at what has happened since the last visit: false alarms, faults, work done, and anything the user has flagged.
2. 2Check the panel. Fault and disablement indicators, event log, power supply and the standby batteries. Batteries are load tested, and voltage alone is not accepted.
3. 3Test a share of the devices. A proportion of detectors and call points are tested at each visit, rotated so that all are proved within the year. We record which ones.
4. 4Check sounders and visual alarms. Every sounder is heard and, where required, sound levels are checked.
5. 5Run cause and effect. Linked equipment such as door releases, lifts, ventilation and signalling to a monitoring centre is tested against the cause and effect chart.
6. 6Look for changes. New partitions, changed use or storage against a detector can mean the coverage no longer matches the building.
7. 7Sign off. A logbook entry and a service certificate, plus a short list of any defects with a price to put them right.

Anything unsafe is flagged to the responsible person before we leave. A fault left on a panel is a fault waiting for the next fire.

The weekly test is yours, the service is ours

They are two different things and both are needed.

The weekly test is done by someone on site. One call point is operated, a different one each week, at about the same time, and the alarm sounds. The test is recorded in the logbook. It proves the panel, sounders and one call point work. It does not prove the detectors, and it does not test the batteries. Our guide on how to do a weekly fire alarm test walks through it.

The engineer's service is the evidence that the whole system is working to the standard. Article 17 of the Regulatory Reform (Fire Safety) Order 2005 requires fire safety equipment to be maintained in efficient working order, and a service record is how you show it. Our page on how often fire alarms need servicing adds the detail, and fire alarm testing covers testing on its own.

Taking over a system someone else installed

We start with a condition survey, not a promise.

Many new clients have a system installed by someone else, or maintained by a company that has gone. Before we agree a contract, we visit, read the logbook and test the system. The report covers:

• What is installed, the panel make and age, and whether parts are still available
• Faults, disablements and devices that do not respond
• Whether the category and coverage still match the building and the fire risk assessment
• Whether drawings and certificates exist, and if not, what we will do to recreate a record
• Anything that will need repair, with a price, so you know before you sign

If a system is beyond sensible repair, we say so. Our guide to when to replace a fire alarm system sets out the signs, and commercial fire alarm installation describes what a replacement involves.

False alarms: part of the service

A good service visit cuts nuisance alarms and does more than log them.

We review the event log for repeat devices, then look at the cause. Dust, steam from a shower or kitchen, cooking, insects, failing detectors and poor positioning are the usual suspects. The fix may be cleaning, moving a detector, changing its type or adjusting sensitivity within what the standard permits. If your alarm keeps going off, read why a fire alarm keeps going off. We do not disable devices to hide a problem.

What a fair maintenance contract includes

Check what is in it before you compare prices.

• Two visits a year as a minimum, with the devices tested on a rotation that covers all of them in 12 months
• A logbook entry and certificate after every visit
• Clear terms on call-outs: what is included, what is charged and at what rate
• A stated price for repairs found on a visit, agreed before the work starts
• Named panels and systems covered, and a clear exclusion for anything not on the list
• No long lock-in with auto-renewal that you cannot get out of

We keep the figures for contracts on one page: fire alarm maintenance contract cost. If you are comparing offers, how to compare fire alarm servicing quotes helps you line them up.

Who looks after the system between visits

BS 5839-1 expects a named person.

The responsible person should appoint someone to look after the system, keep the logbook and arrange the service. If that person leaves, the system still needs an owner. Tell us and we update the contact on our records. The wider picture is on the fire alarms page.

Sources

• Regulatory Reform (Fire Safety) Order 2005 (legislation.gov.uk)
• Fire safety in the workplace: your responsibilities (GOV.UK)

Updated October 2026 by Sebastian Grabowski, DC Fire & Security, 2 Winsdon Court, Luton LU1 5LZ.