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06/10/2025 • by Alice P
A smoke alarm can only save lives if it’s working properly.
Testing it regularly is the simplest way to make sure it’ll respond in an emergency.
Whether you live in a small flat or a large house, taking a minute to test your alarms can make all the difference.
Smoke alarms are the first line of defence against fire.
Over time, dust, battery drain, or even accidental damage can affect performance.
A quick test helps confirm the sensor, battery and sounder are all working.
It also gives you peace of mind that your system will alert you in time should smoke be detected.
The UK Fire & Rescue Services recommends testing your alarms once a week.
If that feels too frequent, aim for at least once a month, but make it part of your routine, like checking the thermostat or taking the bins out.
This may be something you want to add to your home calendar or put a simple note somewhere to remind yourself to do it.
Landlords should test before each new tenancy, and social landlords should check during property inspections.
First, let everyone in the home know you’re testing. The alarm will be loud, so give a quick heads-up to anyone inside (and pets, if possible).
Press and hold the test button
You’ll usually find this on the front or side of the unit. Hold it down until you hear the alarm sound. A loud, continuous tone means it’s working.
Check all interlinked alarms
If you have a wireless or hardwired interlinked system, every connected alarm should also sound. If one doesn’t, check the batteries or connection.
If it doesn’t sound, take action
Replace the batteries if possible, or try vacuuming gently around the vents to remove dust. If it still doesn’t work, replace the alarm immediately.
Wipe down the alarm
Lightly clean with a dry cloth to remove any dust build-up that could affect the sensors.
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Even with regular testing, smoke alarms don’t last forever.
The majority of alarms need replacing every 10 years. Check the manufacturer’s date printed on the back or side of the unit. If it’s older than a decade, or if it starts to beep intermittently despite new batteries, it’s time to upgrade.
If you’ve installed an interlinked domestic smoke alarm kit, like the WisuAlarm Interlinked Smoke & Heat Alarm Pack, you can test all alarms from one device.
Simply press the test button on any unit, and all alarms in the network will activate together.
If you have a WisuAlarm Internet Gateway, you can test your smoke alarms from the WisuAlarm App.
Testing your smoke alarms takes less than a minute, but it’s one of the most important home safety checks you can do.
Whether you’re a homeowner, tenant, or landlord, regular testing keeps your household protected and compliant with UK fire safety guidance.
30/05/2024 • by Lynsey B
