How Often Should a Fire Alarm Be Tested?
Fire alarm testing frequency depends on your building type and who occupies it. In the UK, BS 5839-1 sets out the requirements for commercial premises, while residential buildings follow a simpler schedule. Getting the frequency wrong leaves you non-compliant and, more importantly, puts people at risk.
Weekly Testing: The Minimum Requirement for Commercial Buildings
BS 5839-1 requires that the fire alarm system in commercial premises is tested weekly. This is a simple push-button or key-switch test — you activate one call point (rotating through different call points each week) to confirm the alarm sounds and the panel registers it correctly. The test takes just a few minutes and must be recorded in a fire log book. Weekly tests are typically carried out by a designated 'responsible person' within your organisation — you do not need a qualified engineer for this.
Six-Monthly Professional Inspections
In addition to weekly tests, BS 5839-1 recommends a full inspection by a qualified fire alarm engineer every six months. This is a more thorough check of the entire system — every detector, call point, sounder, and control panel is tested. The engineer will also inspect wiring, battery backup, and connections. High-risk premises (hospitals, care homes, large hotels) should schedule these inspections more frequently.
Annual Servicing and Certification
Once a year, your fire alarm system should receive a full service and the engineer will issue a fire alarm certificate confirming it meets the requirements of BS 5839-1. This certificate is often required by insurers, local authorities, and fire risk assessment reviewers. Without it, you may struggle to renew your insurance or pass a fire safety inspection.
Residential and HMO Requirements
For Houses in Multiple Occupation (HMOs), landlords must ensure smoke alarms are in working order at the start of each tenancy. The Smoke and Carbon Monoxide Alarm (England) Regulations 2022 require smoke alarms on every floor with a living space. Professional testing for residential alarms is not mandated by legislation, but annual checks are strongly recommended. Many local councils require evidence of testing for HMO licences.
What to Do if the Alarm Fails During Testing
If your fire alarm fails during any test — weekly, six-monthly, or annual — the fault must be reported and repaired as quickly as possible. A faulty fire alarm in a commercial building should be treated as a priority. You may need to put temporary fire watch procedures in place while the fault is being fixed, particularly in premises that are open to the public.