Quick Answer
For most homes in Northern Ireland, we recommend a wireless alarm system with smartphone app control and professional monitoring. The two brands we work with most are Ajax (for app experience and expandability) and Orisec (for hybrid wired/wireless flexibility). For a typical 3-4 bedroom home: expect to pay around £800-£1,500 for a professionally installed, monitored system. Always get at least three quotes and make sure the installer is SSAIB-certified.
A professionally installed intruder alarm is one of the most effective deterrents against burglary. Homes without alarms are statistically more likely to be targeted, and homes with visible alarm systems are less likely to be broken into at all.
This guide helps Northern Ireland homeowners understand their options and choose the right system.
Types of Alarm Systems
1. Bells-Only Alarm
The most basic type. When triggered, the alarm sounds loudly but doesn’t notify anyone.
– Pros: Low cost, simple
– Cons: No notification if you’re away, relies on someone hearing it
– Our view: Not recommended for most homes. If no one’s there to hear it, what’s the point?
2. Dialler Alarm
When triggered, automatically calls programmed phone numbers (usually your mobile).
– Pros: Notifies you if away, relatively affordable
– Cons: Can generate false calls to police, reliance on phone line
– Our view: Better than bells-only, but not as reliable as modern monitoring
3. Monitored Alarm
Connected to an Alarm Receiving Centre (ARC) that monitors your alarm 24/7 and contacts you and/or the police when triggered.
– Pros: Professional response, police notification (if confirmed), insurance benefits
– Cons: Ongoing monitoring costs (typically £15-30/month)
– Our view: The right choice for most homeowners serious about security
4. Smart Alarm (App-Controlled)
Modern wireless alarms that connect to your smartphone, allowing you to arm/disarm remotely and receive notifications.
– Pros: Full control from anywhere, easy to use, flexible
– Cons: Typically requires broadband
– Our view: Excellent choice for most homes. Ajax and Orisec both offer app control.
Wired vs Wireless Alarms
Wireless Alarms
Communicate via radio signals. Battery-powered sensors communicate with the hub.
– Pros: Faster installation, less disruptive to install, easier to expand
– Cons: Battery replacement needed (every 3-7 years depending on device)
– Recommended for: Most homes, especially where running cables is difficult
Wired Alarms
Sensors connected to the control panel by cables.
– Pros: More reliable (no radio interference), no battery changes
– Cons: More disruptive to install, harder to expand
– Recommended for: New builds, major renovations, large commercial premises
Hybrid Alarms
Combine wired and wireless elements. For example, a wired system with wireless sensors in difficult-to-wire locations.
– Pros: Best of both worlds
– Cons: More complex
– Recommended for: Properties with some existing wired infrastructure
What to Look For in a Home Alarm
1. SSAIB Certification
Always choose a SSAIB-certified installer. This means:
– The company has been independently audited
– Their installations meet UK standards
– You’re eligible for police response (if monitored)
– Your insurance may require it
2. Police Response
For police response, your system needs to be:
– SSAIB-certified (or equivalent)
– Monitored by an approved ARC
– Confirmed by two activation signals (to reduce false alarms)
Note: In Northern Ireland, PSNI responds to confirmed alarm activations from verified monitored systems.
3. Mobile App Control
Modern alarms connect to apps on your phone. Look for:
– Arm/disarm remotely
– Receive push notifications
– View system status
– Add/remove sensors
– Multiple user access
4. Pet-Friendly Sensors
If you have pets, ensure the system has pet-immune motion detectors. Ajax’s MotionProtect Pet ignores animals up to 20kg, for example.
5. Monitoring Options
Consider whether you want:
– Self-monitoring: App notifications only
– Professional monitoring: ARC monitors 24/7 and contacts you/the police
How Much Does a Home Alarm Cost in Northern Ireland?
| System Type | Typical Cost |
|---|---|
| Basic bells-only (DIY) | £200-£500 |
| Smart alarm, self-monitored | £400-£800 |
| Professionally installed, monitored | £800-£1,500 |
| Commercial-grade system | £1,500+ |
Important: These are equipment and installation costs. Monitoring is a separate monthly cost.
What affects price:
– Number of sensors required
– Whether you choose wired or wireless
– Monitoring contract length
– Brand and features
The Brands We Recommend
Ajax
Ukrainian security brand with excellent app experience. Best for:
– Users who prioritise app control
– Homes with pets (excellent pet immunity)
– Those who want expandability (up to 200 devices)
– Modern, sleek hardware design
Models:
– Hub: Up to 100 devices, basic app
– Hub 2: Up to 100 devices, photo verification
– Hub 2 Plus: Up to 200 devices, Wi-Fi/LTE, most features
Orisec
UK-manufactured, professional-grade systems. Best for:
– Customers wanting wired/wireless flexibility
– Larger properties with more zones
– Those preferring traditional installer model
– Commercial installations
Features:
– Hybrid wired/wireless architecture
– Established UK support
– Competitive pricing for larger systems
Common Add-Ons
Motion Sensors
Detect movement inside the property. Pet-friendly options available.
Door/Window Contacts
Trigger when doors or windows are opened. Essential for perimeter protection.
Glass Break Detectors
Detect the sound of breaking glass. Useful for ground floor windows.
Smoke/Heat Detectors
Integrated fire detection. Some systems can integrate with your existing fire alarms.
Panic Buttons
Wall-mounted or personal panic buttons for emergencies.
CCTV Integration
Many alarms can integrate with CCTV systems for visual verification.
Frequently Asked Questions
Q: Do I need planning permission for an alarm external siren?
A: Generally no for domestic properties. However, if you’re in a listed building or conservation area, check with your local council. External sounders should be positioned to minimise disturbance to neighbours.
Q: Will an alarm reduce my home insurance?
A: Many insurers offer discounts for professionally installed, monitored alarm systems. Keep your SSAIB certificate as proof. Let your insurer know once installed.
Q: Can I install an alarm myself?
A: You can, but DIY systems won’t qualify for police response and won’t be SSAIB-certified. Professional installation ensures proper placement, signal testing, and certification.
Q: How long does a professional installation take?
A: For a typical 3-bedroom home: 2-4 hours for wireless systems. Wired systems take longer.
Q: What happens if I move house?
A: Both Ajax and Orisec systems are portable. You can uninstall and reinstall at your new property. Notify your monitoring station of the address change.
Q: Do alarms really deter burglars?
A: Yes. Visible alarm boxes and signage are proven deterrents. Most burglars will move on if they see an active alarm system.
Summary
| Choose Bells-Only if… | Choose Monitored if… |
|---|---|
| Very tight budget | You want professional response |
| Someone is usually home | You’re away from home regularly |
| You accept the limitations | Insurance discount matters |
| Peace of mind is important |
Ready to Choose?
Advanced Overwatch installs home alarm systems across Northern Ireland. We provide free surveys and competitive quotes for professionally installed, SSAIB-certified systems.
Contact us for a free survey — we’ll assess your property and recommend the right alarm system for your home.
