Fire alarm testing and maintenance explained
A complete guide to fire alarm testing and maintenance obligations under BS 5839-1 — weekly tests, servicing frequency, log books, and who can legally carry out the work.
A fire alarm system that is never tested may appear to work but fail silently. Faults develop gradually — a detector sensitivity drifts, a battery degrades, a sounder circuit develops a high resistance — and without regular testing and servicing these faults go undetected until the system is called upon in an actual fire. BS 5839-1 sets out a comprehensive maintenance regime designed to ensure the system works when it matters.
What BS 5839-1 Requires
The standard establishes a layered maintenance regime with obligations at different intervals — daily, weekly, monthly, six-monthly, and annually. Each layer addresses different aspects of system health, from the basic visual checks that any responsible person can carry out to the detailed technical testing that requires a competent specialist contractor.
| Interval | Who carries out | What is checked |
|---|---|---|
| Daily | Nominated responsible person | Panel checked for fault or alarm indications; any faults reported immediately |
| Weekly | Nominated member of staff | One manual call point tested on rotation; result recorded in log book |
| Monthly | Nominated responsible person | Visual inspection of all accessible devices; check for physical damage or obstruction |
| Six-monthly | Competent specialist contractor | Full inspection and test of all devices, circuits, panel functions, battery, and sounders; full service report issued |
| Annually | Competent specialist contractor | Full service as above plus review of system adequacy against current fire risk assessment; any changes in building use or layout addressed |
Explore the guides
Testing and Maintenance Guides
Weekly fire alarm test procedure
Step-by-step guidance on carrying out the weekly manual call point test, notifying the ARC, and recording the result correctly.
Fire alarm servicing checklist
What a competent contractor should inspect and test at each six-monthly service visit — and what to check if you receive a service report.
Log book requirements
What must be recorded in the fire alarm log book, how long records must be kept, and what the log book tells an inspector.
Who can service a fire alarm?
What competence is required to carry out fire alarm servicing, what BAFE certification means, and what to look for when appointing a contractor.
Fire alarm maintenance frequency
How often fire alarm systems must be serviced, what affects the required frequency, and the consequences of missed service visits.
Maintenance Records and Legal Compliance
The Regulatory Reform (Fire Safety) Order 2005 requires the responsible person to maintain fire precautions in efficient working order and good repair. A fire alarm log book containing records of all weekly tests, faults, false alarms, and service visits is the primary evidence that this obligation is being met. An enforcing authority inspecting your premises will ask to see the log book — a missing or incomplete log book is an immediate indication of non-compliance and can trigger an enforcement notice.