In today’s world, protecting your property — whether residential or commercial — is more important than ever. One of the most effective ways to deter break-ins and safeguard your premises is with a professionally installed intruder alarm system. At SR Fire & Security, we often receive questions from customers about how intruder alarms work, what options are available, and why they are a vital part of a complete security strategy. Here, we’ve pulled together some of the most frequently asked questions to help you better understand intruder alarms — and why working with a trusted provider matters.
What is an intruder alarm?
An intruder alarm is a system designed to detect unauthorised access into a building or area. When triggered, the system will either sound a loud alarm to deter the intruder and alert occupants, or silently alert a monitoring centre or keyholders for a rapid response. Intruder alarms provide critical protection for homes, businesses, and public buildings.
How do intruder alarms work?
Intruder alarms use a range of sensors, such as motion detectors, door and window contacts, and glass-break sensors, to monitor a property. When an unauthorised movement or breach is detected, the control panel triggers the alarm or notification response. Many modern systems can also be connected to smartphone apps for real-time alerts and remote management.
Are there different types of intruder alarms?
Yes, there are several types, including:
- Bells-only alarms: These sound a loud alarm on-site when triggered but do not alert anyone remotely.
- Monitored alarms: These are connected to an Alarm Receiving Centre (ARC) or directly notify you or designated keyholders when triggered.
- Smart alarms: These offer app connectivity, allowing you to arm, disarm, and monitor your property remotely.
- Wireless systems: These are quick and tidy to install with minimal disruption to your property.
Choosing the right type depends on your property type, your security needs, and your budget.
How often should intruder alarms be serviced?
It’s recommended that intruder alarms are professionally serviced at least once a year. Regular maintenance ensures that all components are working correctly, reduces the chance of false alarms, and ensures your insurance requirements are met. Some monitored systems may require twice-yearly servicing under certain insurance policies or compliance guidelines.
Do intruder alarms reduce insurance premiums?
Many insurance companies recognise professionally installed and maintained intruder alarm systems and may offer reduced premiums as a result. However, insurers often require the alarm system to meet specific standards (such as NSI Gold certification) and to be regularly serviced.
What happens if I move premises or renovate?
If you move or renovate your property, your intruder alarm system may need to be upgraded, expanded, or repositioned. It’s important to consult your security provider to ensure continued protection and compliance with any insurance conditions.
Why choose SR Fire & Security for your intruder alarm system?
At SR Fire & Security, we specialise in designing, installing, commissioning, and maintaining intruder alarm systems tailored to your specific needs. Whether it’s a simple alarm for a home, a complex monitored system for a commercial premises, or a smart solution linked to your mobile device, we ensure your property is protected to the highest standards.
We are NSI Gold accredited, meaning our work meets the highest standards of quality and compliance in the industry. Our systems are installed to current British and European standards, and we offer full ongoing maintenance contracts to give you complete peace of mind.
Our team is based locally in Newtownards and operates across Northern Ireland and beyond. We pride ourselves on a personal, client-focused approach, meaning you’re not just another number — you’re a valued client we’re proud to protect.
If you’re considering upgrading your intruder alarm or installing a new system, get in touch with us today. Let’s make sure your property is safe, secure, and protected — now and into the future.