How Often Should a Burglar Alarm Be Serviced?
A burglar alarm spends most of its life waiting.
That can make it easy to forget about maintenance until the keypad shows a fault, a detector battery runs low or the external siren activates unexpectedly.
Regular servicing is intended to find problems before the day you actually rely on the system.

How often should you service a home burglar alarm?
For many domestic systems, an annual service is a sensible routine.
The correct frequency can depend on the type of system, manufacturer recommendations, monitoring arrangements, environmental conditions and any requirements linked to insurance or a particular risk.
If your alarm has not been checked for several years, it is worth arranging an inspection even if it appears to be working normally.
What does an alarm service include?
A proper service is more than pressing a button on the keypad.
The engineer should inspect the system, check for recorded faults, test relevant detection devices and confirm that the alarm responds as expected.
Depending on the equipment, checks may include:
Control equipment and keypad condition.
Detector operation.
Door contacts and perimeter devices.
Internal and external sounders.
Backup battery condition.
Wireless device battery status.
Radio communication where relevant.
App or communication functions where included.
System date, time, event history and programming issues.
Visible signs of damage, contamination or tampering.
The exact procedure depends on the system installed.
Why do alarm batteries matter?
Many alarms have more than one type of battery.
The main control equipment normally has standby battery backup. Wireless detectors and other devices may have their own batteries.
Batteries deteriorate with age. A system may continue appearing normal while a battery is losing capacity, which is why proactive replacement and testing can be worthwhile.
A service gives the engineer a chance to spot developing battery problems before they become emergency call-outs.
What if the alarm is working fine?
That is the best time to service it.
Preventative maintenance is intended to reduce the likelihood of failure, not simply repair a system that has already stopped working.
It is similar to maintaining a boiler or vehicle: normal operation today does not guarantee every component is in ideal condition.
Warning signs that your alarm needs attention
Do not wait for the next annual service if you see a fault message or repeated problem.
Common reasons to call an engineer include low-battery warnings, unexplained beeping, tamper faults, detectors that do not appear to respond, false alarms, communication failures or an external sounder that behaves unexpectedly.
If the system has been switched off because of a recurring fault, the protection is obviously reduced until the issue is resolved.
What about old burglar alarms?
Older systems can often be serviced or repaired, depending on parts availability and condition.
However, there comes a point where repeated repair costs are better spent on an upgrade.
A modern system may offer improved wireless devices, app notifications, image verification and easier expansion. An engineer should be able to explain whether repair or replacement makes more financial sense.
Do monitored alarms need servicing?
Remote monitoring does not remove the need for physical maintenance.
The communication path may be functioning perfectly while a detector, battery or sounder has an issue. Servicing checks the alarm system as a whole.
Where an app or communication service is used, that function should also form part of the overall health check.
Why use a local alarm company?
Security systems are long-term products.
The installer you choose may be the company you call years later when you need a battery, an extra sensor, a change to the programming or help after moving into the property.
At Midland Alarm Services East, ongoing support is part of the service. We install and maintain systems across Rugby, Leicester, Lutterworth, Northampton and surrounding areas.
How much does an alarm service cost?
Service costs depend on the company, system and any replacement parts required.
When comparing prices, check what is actually included. A basic visual check is not the same as a thorough preventative maintenance visit.
If parts or batteries are likely to be additional, ask the engineer to explain the cost before proceeding.
Keep your alarm ready
A burglar alarm is installed for the day something goes wrong. Routine servicing helps make sure the system has not quietly developed a problem during the months or years when nothing happened. If it has been a while, our alarm servicing team can carry out a full health check.
If you cannot remember the last time your alarm was serviced, that is usually a good sign that it is worth checking.
Frequently asked questions
Should a wireless alarm be serviced every year?
Annual servicing is a sensible general routine for many systems, but follow the manufacturer and installer recommendations for your equipment.
How long do alarm batteries last?
Battery life varies by battery type, device use, temperature and equipment. The system may provide low-battery warnings, but routine checks are still recommended.
Can you service an alarm installed by another company?
Often yes, depending on the make, model, engineer access and system condition.
Can you upgrade an old alarm during a service visit?
Potentially. An engineer can assess whether the existing equipment is suitable for repair, expansion or replacement.
Book an alarm service
Midland Alarm Services East provides burglar alarm servicing across Rugby, Leicester, Lutterworth and Northampton. Call 01788 708 035 to arrange a visit.

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