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High-Quality Intruder Alarm Installation & Maintenance in Northern Ireland and Across the UK

We install and maintain intruder alarm systems to help protect your business premises from break-ins, theft, and unauthorised access. Our systems are shaped to your site, budget, and risk level for your peace of mind that your property is secure, day and night.
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Certified
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Protect Your Premises with Certified Intruder Alarm Services

We provide a complete service, from system design and installation to routine maintenance and rapid repairs. If you're upgrading an older system or starting fresh, we'll make sure your intruder alarm is reliable, effective, and fully monitored if needed.

All work is carried out by qualified engineers and meets UK security standards (EN 50131 & PD6662). We work with the latest technology and offer full support for single-site businesses and multi-location setups across Northern Ireland and the wider UK.
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Serving Northern Ireland & the UK

We install and service intruder alarms across Northern Ireland, including Belfast, Newry, Derry/Londonderry, Lisburn, and Bangor. We also support national clients with properties throughout the UK.

What We Offer

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Intruder Alarm Installation

We install wired and wireless systems designed to your building layout and needs. This includes control panels, door/window sensors, motion detectors, and sirens, all designed for fast, secure protection.
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Intruder Alarm Maintenance

We provide regular inspections, battery replacements, and full system checks to keep your alarm running smoothly. Maintenance ensures your system is ready to act when you need it most.
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Intruder Alarm Servicing

Our engineers carry out performance tests, fault diagnostics, and system updates. We log every visit, so you're always inspection-ready and fully compliant with insurer requirements.
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What Makes Us Different

Why Choose FireHow for Intruder Alarm Installation and Maintenance

Professional, prompt, and reliable intruder alarm installation & maintenance.
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Installed to UK Security Standards

All systems meet EN 50131 and PD6662 standards, so you stay compliant with insurance and legal requirements.
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Designed Around Your Site

We design your intruder alarm setup to match your building’s layout, access points, and risk level.
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Ongoing Maintenance & Support

We provide full servicing, battery checks, and performance testing to keep your alarm working when it counts.
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Fast Call-Outs When Something’s Not Right

If your system goes offline or needs attention, we act quickly so you're not left unprotected.
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Fast Response Across NI and the UK

Based in Northern Ireland, we respond quickly and support businesses across the UK with efficient service.
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Straightforward Pricing

Our quotes are fixed and clear, no hidden costs or unnecessary extras.
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Support for All Property Types

We match the right intruder alarm to your setup, with options for retail, offices, and industrial spaces.

Intruder Alarms for All Types of Premises

We protect a wide range of buildings, including:
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Shops & Retail Premises
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Warehouses & Distribution Centres
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Offices & Business Units
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Schools & Colleges
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Healthcare Facilities
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Industrial Sites
No matter the size or type of building, we install a system that fits.
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Stay Compliant & Covered

Insurers often require regular intruder alarm maintenance. We help keep your records up to date and your system in top condition, so you're covered in the event of a claim.

We'll also help you meet the standards set by:
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EN 50131 (European Standard for Intruder Alarms)
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PD6662 (UK Implementation Standard)
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NSI or SSAIB certification requirements (if applicable)
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Need More Than Just an Alarm?

We offer full fire and security support under one roof:
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Fire Alarm Installation & Maintenance
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CCTV Systems
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Emergency Lighting
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Fire Risk Assessments
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Fire Extinguisher Servicing
See how FireHow can help keep your business protected from every angle.
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Need Alarm System Parts or Accessories?

Visit our online shop for essential intruder alarm components, accessories, and upgrade parts.
We stock a range of items to help you keep your system running at its best, from replacement sensors and control panels to batteries and sirens. All products are hand-picked for quality, compatibility, and ease of use.

If you're topping up your kit or replacing a faulty part, our online store is open 24/7 for fast, easy ordering.
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FAQs

Intruder Alarm
Installation & Maintenance

Monitored systems offer 24/7 response from a remote centre. It’s highly recommended for higher-risk sites or if your building is unoccupied at night.

At least once a year for most systems. Regular checks help avoid false alarms and ensure fast response in real emergencies.

Yes. Many systems include mobile app control for arming, disarming, and receiving alerts in real time.

We can take over the maintenance and servicing of existing systems, even if we didn’t install them.

We install both wired and wireless systems from trusted brands, depending on your site and budget.

Yes, we can integrate your intruder alarm with fire alarms, CCTV, and access control systems for a fully connected security setup.

Most intruder alarm systems include a backup battery, so your property stays protected during short power outages. We check and replace batteries during regular maintenance visits.

We can usually carry out installation within a few days of your initial consultation, depending on the size and complexity of the site.

Monitored vs Unmonitored Intruder Alarms

Not sure which type of system is right for your site? Here's a quick comparison to help you decide:

Monitored Systems

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24/7 alert response
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Remote notifications via app
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Alerts sent to response team
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Police or keyholder response
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Ideal for high-risk or remote sites

Unmonitored Systems

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Siren only
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Audible alarm at the site
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No third-party alert
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Relies on people nearby hearing it
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Suitable for lower-risk, occupied premises
We’ll help you choose the right option based on your risk level, budget, and site needs.

Upgrade Your Site Security with Expert Alarm Services

Our intruder alarms are built to match your risk level, giving you security that’s smart, reliable, and fully compliant.
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