One of the most important decisions when specifying an intruder alarm system is whether it should be professionally monitored. For Gloucestershire businesses, the choice between monitored and unmonitored systems has significant implications for response times, insurance compliance, and overall security effectiveness.
Unmonitored (Bells-Only) Systems
- Activate an external sounder and strobe when triggered
- Rely on passers-by or neighbours to notice and report the alarm
- No automatic notification to keyholders or emergency services
- Lower ongoing costs as there is no monitoring subscription
- May not satisfy insurance requirements for higher-risk premises
Monitored Systems
- Connected to an Alarm Receiving Centre (ARC) staffed 24/7
- Automatic notification to keyholders and, where applicable, police
- Verified alarm systems can receive a police response
- Monthly monitoring subscription applies
- Required by most commercial insurance policies for higher-value premises — see our guide on insurance requirements for intruder alarms
Which Is Right for Your Business?
The right choice depends on several factors including the value of assets on site, the location and visibility of the premises, insurance requirements, and your tolerance for risk. Remote or isolated premises particularly benefit from monitored systems, as there may be no one nearby to hear a bells-only alarm. For residential monitoring in Taunton, read our guide on why local intruder alarm monitoring is essential.
Reducing False Alarms
One concern with monitored systems is the risk of false alarm charges. However, modern detection technology and proper system design significantly reduce false activations. Our guide to false alarm reduction tips covers the practical steps you can take to maintain reliable detection.
Integrating with Other Security Systems
Monitored intruder alarms work most effectively as part of a layered security approach. Combining alarm monitoring with CCTV verification and access control creates a comprehensive security solution. Read about integrated security systems to understand how these technologies work together.
Affinity Fire & Security Monitoring Services
We install both monitored and unmonitored intruder alarm systems for Gloucestershire businesses. As a specialist installer, our monitored systems qualify for police response and meet the highest insurance requirements. We can advise on the most appropriate solution for your risk profile.
Talk to a Local Engineer
If you would like honest advice, a clear written quote, or help with compliance paperwork,get in touch with our team. We are a small, experienced South West team, and we look after every customer properly — no pushy sales, no hidden extras, and documentation you can rely on.



