How Often Should Burglar Alarms Be Serviced?
Aug 19, 2025
A burglar alarm is only effective if it works when you need it most. While installation provides peace of mind, ongoing maintenance is essential to ensure your system continues to perform reliably. But how often should a burglar alarm be serviced? And does the answer differ for homeowners and businesses?
At C&C Security Systems, we provide alarm servicing and monitoring across London, helping both residential and commercial customers stay protected. In this guide, we’ll explain the recommended service intervals, why servicing matters, and what you can expect from a professional alarm maintenance visit.
Why Alarm Servicing Matters
Just like a car, a burglar alarm needs regular check-ups to remain reliable. Without proper maintenance, alarms may develop faults, fail to trigger, or suffer from false alarms. For London homeowners and businesses, the consequences can be costly — both in terms of property loss and insurance compliance.
Benefits of alarm servicing include:
- Ensuring your system works when you need it.
- Reducing false alarms.
- Identifying faults before they become serious.
- Extending the life of your alarm system.
- Meeting insurance requirements.
Recommended Servicing Frequency
The general guideline for burglar alarm servicing is:
- Residential Properties: Once every 12 months (annual servicing).
- Commercial Properties: Twice every 12 months (every 6 months).
These intervals are recommended by most insurers and professional security bodies.
Why the difference? Businesses often face higher risks and may require stricter compliance with insurance or regulatory standards.
What Happens During an Alarm Service?
A professional alarm service typically includes:
- System Inspection: Checking sensors, keypads, sirens, and wiring.
- Battery Testing & Replacement: Ensuring backup batteries work properly.
- Signal Testing: Verifying wireless or monitored connections are strong.
- Trigger Test: Confirming alarms activate correctly and notify keyholders.
- Software Updates (if smart system): Updating apps or firmware for best performance.
- Service Report: A certificate or log confirming the system is in working order.
At C&C Security Systems, we provide written reports after every service — useful for both homeowners and business insurance purposes.
Signs Your Alarm Needs Servicing Sooner
Even if your annual service isn’t due, call for professional maintenance if you notice:
- Frequent false alarms.
- Sirens not sounding or delayed.
- Keypad or sensors not responding.
- Warning lights or error messages.
- Reduced battery life in wireless sensors.
These are red flags that your system could fail when you need it most.
Insurance and Alarm Servicing
Many London insurers require proof that burglar alarms are regularly serviced by an NSI or SSAIB-approved installer. Failing to maintain your alarm could:
- Void your insurance policy.
- Lead to higher premiums.
- Reduce payout eligibility in the event of a claim.
That’s why regular servicing isn’t just good practice — it’s often a legal and financial necessity.
FAQs About Alarm Servicing
You can test your system, but insurers require professional servicing for full compliance.
Most residential services take around 30–60 minutes. Commercial systems may take longer depending on complexity.
Basic services start from around £70–£120. Monitoring or repairs may add extra costs.
Yes. At C&C Security Systems, we maintain most major alarm brands regardless of who installed them.
Why Choose C&C Security Systems for Alarm Servicing?
- Over 15 years of experience servicing London alarms.
- Accredited engineers, insurance-approved servicing.
- Fast, reliable callouts for urgent repairs.
- Maintenance contracts available for homes and businesses.
- Written reports for insurance compliance.
Final Thoughts
our burglar alarm is only as reliable as its last service. For homeowners, an annual service keeps your family safe and your insurance valid. For businesses, six-monthly checks provide reassurance and compliance with industry standards.
Book Your Alarm Service in London Today
Don’t wait until your alarm fails. Book a professional alarm service with C&C Security Systems and ensure your property stays protected.
📞 Call us today on 020 3553 2364
📩 Or request your free servicing quote online
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👉 Alarm Maintenance & Monitoring London
👉 Burglar Alarm Installation London
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