Fires remain one of the leading causes of workplace injuries in the UK. According to the latest update from the Home Office, there were 6665 workplace fires in 2024/25. While most of the incidents are quickly dealt with thanks to smoke alarms and modern fire extinguishers, many still result in injuries and even death.
In addition, fires on the worksite can destroy expensive equipment and cause heavy losses. Besides lost revenue due to downturns, it can also ruin your business reputation, making you lose many of your loyal customers. In fact, most businesses fail within 2 years of a major incident.
Simply put, you cannot afford to be complacent about workplace fire safety. Installing and maintaining smoke alarms can ensure early detection, allow you to safely evacuate employees and customers, and even save valuable equipment, if not the whole work site.
In this article, we will provide tips and advice on properly maintaining your smoke alarms and protecting your employees and business assets.
Are Smoke Alarms Mandatory in the UK?
All work sites in the UK are legally required to have smoke alarms. Under the Regulatory Reform (Fire Safety) Order 2005, employers in England and Wales must implement appropriate fire detection and warning systems.
What Are Some of the Common Causes of Workplace Fires
In the UK, the most common causes of workplace fires include faulty electrical equipment, overloaded power sockets, flammable liquids, combustible materials, and poor storage practices. In fact, over 60% of all workplace fires happen in only three sectors – industrial, retail, and food and drink premises.
But the leading cause of fire varies across these industries. It’s therefore important to understand the specific risks in your business so you can take the right precautions.
Fire Alarm Safety Tips for Work Sites
Start With the Right Smoke Alarm System
Not all business premises require the same type of fire detection. The option you choose must suit not only your industry but also the size and layout of your premises.
Optical alarms are suitable for offices and meeting rooms where slow-burning fires may occur. But if you run a kitchen or industrial work site, heat alarms are more appropriate since dust and fumes can trigger false alarms and cause unnecessary panic.
Interlinked systems are the most effective option in larger premises. This ensures that if one alarm detects smoke, the entire building is alerted.
Whichever option you choose, you must ensure it meets BS 5839 standards, which specify the design, installation, and maintenance of alarm systems in commercial and public spaces.
Installation is Just as Important
There is a reason the BS 5839-1 provides a code for installation. If you do it poorly, you can reduce the effectiveness of even the best smoke alarms.
In addition to the high-risk areas, you should also place fire detectors in escape routes, corridors, and stairwells. We recommend installing at least one alarm on each floor and, if possible, interconnecting them so they can all sound together.
Regularly Test and Replace Your Alarms
One reason many fires go undetected is faulty smoke alarms. You should test your smoke alarms at least once every week. This takes seconds, and you simply need to press and hold the test button. If the alarm is silent or produces a weak sound, it means either the battery needs replacing or the alarm is broken. Replace the battery and test it again to rule out a power issue before calling in a technician or replacing the unit.
For large work sites, it’s still advisable to engage a professional technician regularly to ensure your smoke alarm system remains compliant. Failure to do this can expose you to serious penalties during a fire safety audit.
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