Top 7 Reasons Why Your Fire Alarm Keeps Going Off

You’re mid-meeting, coffee in hand, and WAH WAH WAH — the fire alarm erupts like it’s auditioning for a disaster movie.

Sanjay Saggar avatar

Top 7 Reasons Why Your Fire Alarm Keeps Going Off (And How to Fix It!)

You’re mid-meeting, coffee in hand, and WAH WAH WAH — the fire alarm erupts like it’s auditioning for a disaster movie. No smoke, no fire, no toast left in the toaster. Just chaos. Sound familiar?

If your fire alarm is the office’s loudest drama queen, it might be time to investigate why. Below are the top 7 reasons fire alarms go off unnecessarily — and what you can do to make it stop.

Understanding Fire Alarm Systems

Fire alarm systems are a legal requirement under the Regulatory Reform (Fire Safety) Order 2005 for most commercial premises. But false alarms aren’t just annoying — they can lead to complacency, downtime, and hefty call-out fees from the fire brigade.

Let’s break down the culprits.

1. Low Battery Issues

Low battery = high-pitched squealing. Some alarms start chirping, others go full nuclear. Either way, swap the battery regularly or risk your alarm howling like a caffeinated banshee at 2am.

2. Dust and Debris

Construction site? Just had the office refurbed? Dust particles love crawling into your detectors, confusing the sensors like a moth to a flame. Clean your detectors with a hoover nozzle (gently!) or compressed air.

3. Humidity and Temperature Changes

Steam rooms and fire alarms don’t mix. Bathrooms, kitchens, and hot attics can trigger false alarms thanks to steam or heat gradients. Reposition or upgrade to heat detectors in steamy spaces.

4. Faulty Smoke Detectors

Old or poorly manufactured alarms can develop a mind of their own. If your detector is over 10 years old or randomly shrieking like a possessed parrot, it’s time to replace it.

5. Improper Installation

A smoke detector next to the toaster is just asking for trouble. Placement is critical. Alarms should be located per BS 5839-1 standards, not “where the ladder could reach that day.”

6. Electrical Faults in Wired Systems

Hard-wired system with gremlins? Loose connections or power surges can trigger alarms. Get it checked by a competent engineer before your entire office invests in earplugs.

7. Lack of Maintenance

Fire alarm maintenance isn’t optional — it’s the law! Regular inspections (at least twice a year minimum) ensure your system isn’t trying to gaslight you. Literally.

When to Replace Your Fire Alarm

If it’s older than your intern or keeps crying wolf, a replacement might save you money, stress, and a potential prosecution.


Final Thoughts

False alarms might be common, but they’re not something to ignore. Whether it’s poor placement, rogue wiring, or simply a dusty detector, we can get to the bottom of it fast — and keep you legally compliant.

🔥 Need your fire alarm checked, serviced or replaced?

Visit www.firesafetycompany.com or call us now on 01748 811992

We’ll silence the madness before your fire alarm gets you evicted.