Help keep firefighters available for genuine emergencies
Every time Buckinghamshire Fire & Rescue Service responds to an unwanted fire signal (UwFS), firefighters and fire engines are diverted away from real emergencies where lives, property and the environment may be at risk.While fire alarm systems are essential for protecting people and buildings, many unwanted fire signals are preventable. By taking a few simple steps, schools, businesses and other responsible persons can reduce unnecessary fire alarm activations while maintaining high standards of fire safety.
What is an unwanted fire signal?
An unwanted fire signal is when a fire alarm system activates but there is no fire requiring an emergency response.
These activations are sometimes referred to as false alarms, but they are often caused by everyday activities, maintenance work or poor fire alarm management rather than faults with the system itself.
Common causes include:
Fire alarm testing carried out incorrectly
Dust from maintenance or refurbishment works
Steam from kitchens, showers or cleaning
Cooking fumes
Aerosol sprays
Accidental operation of manual call points
Poorly maintained fire alarm systems
Detector contamination
Why does it matter?
Every unnecessary fire service attendance:
Reduces the availability of firefighters and appliances for genuine emergencies.
Places unnecessary demand on emergency services.
Disrupts staff, visitors and building occupants.
Can increase costs and disruption for your organisation.
Good fire safety management helps ensure that when an alarm activates, it is because someone genuinely needs assistance.
Practical steps to reduce unwanted fire signals
Review your Fire Risk Assessment
Whenever significant work or changes take place within your building, review your Fire Risk Assessment to ensure any additional risks are identified and managed.
This may include:
Refurbishment projects
Changes to escape routes
Temporary storage
Contractor activity
Fire alarm alterations
Manage building works carefully
Summer holidays are often used to carry out maintenance and refurbishment projects.
Construction dust and debris can easily activate smoke detectors.
If detectors need to be temporarily covered:
Carry out a suitable risk assessment.
Ensure appropriate temporary controls are in place.
Remove detector covers immediately once work is complete.
Reinstate the fire alarm system as soon as possible.
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Brief contractors
Anyone working on your premises should understand:
Your fire procedures
Evacuation arrangements
Assembly points
Fire alarm testing arrangements
Site-specific risks
Good communication helps prevent avoidable alarm activations.
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Train more than one member of staff
Don’t rely on one individual to manage your fire alarm system.
Ensure several members of staff know how to:
Test the alarm correctly
Report faults
Respond to activations
Contact maintenance providers
Liaise with your Alarm Receiving Centre (ARC)
Keep your fire alarm system maintained
Regular servicing and maintenance helps ensure your system operates correctly.
Investigate every unwanted fire signal to identify the root cause and prevent it happening again.
Tell your Alarm Receiving Centre
If your building is connected to an Alarm Receiving Centre (ARC):
Always notify them before:
Routine alarm testing
Planned maintenance
Building works
Make sure they have up-to-date contact details so alarms can be verified before emergency attendance is requested.
Need advice?
Our Business Engagement Team can provide help to responsible persons on effective fire safety management and reducing unwanted fire signals.