Commercial Intruder Alarm Systems
Commercial alarm systems and business alarm systems for businesses across Northern England, graded to BS EN 50131 and installed with NSI Gold certification.
National Security Inspectorate
Highest grade · Security & quality
Fire Safety Register
SP203-1 · Third-party certified
Fire Industry Association
Full member
Contractor Health & Safety
Accredited contractor
Commercial intruder alarm systems
Wired, wireless and hybrid commercial intruder alarms, each system graded and certificated to BS EN 50131 for the protection your premises and insurer require.
We specify commercial intruder alarms around your building, your risk profile and your insurance requirements. Whether you need discreet protection for an office, wide-area detection for a warehouse, or a scalable system across a multi-site estate, our security alarm systems combine the right detection technology with monitoring and police response.
Wired systems
Hard-wired detection for new-builds, refurbishments and larger premises where cabling can be installed cleanly. A dependable, interference-free option for permanent commercial installations.
Wireless systems
Fast, low-disruption installation for occupied or heritage premises where cabling is impractical. Encrypted, supervised radio sensors with long battery life and full grading.
Hybrid systems
Hybrid systems use a wired backbone with wireless devices for difficult zones, outbuildings and phased expansions without re-cabling the whole site.
Commercial & business burglar alarms
Whether you call it an intruder alarm or a burglar alarm, it's the same job: stopping a break-in before it costs you stock, equipment and downtime. Our commercial burglar alarms use the same graded detection and monitoring as our intruder systems, framed around the threat every business owner actually worries about.
For retail units, trade counters, warehouses and offices, business burglar alarms deter opportunists, detect forced entry and summon a fast, verified response. We'll match the level of protection to your stock value, footprint and insurance terms.
Intruder alarm installation
Security survey
A free site survey to assess risk, entry points, insurance terms and the grade of system your premises needs.
Design & quote
A clear, fixed-price specification covering detection zones, grade and monitoring, mapped to your building and budget.
Installation
Employed, accredited engineers install cleanly around your operation, with wireless options where cabling isn't practical.
Commission & certify
We test, commission, register your police URN and hand over full BS EN 50131 certification and documentation.
Every install is backed by a maintenance contract: planned servicing to BS EN 50131 with 24/7 emergency call-out, keeping your system compliant and your cover valid.
Monitored intruder alarms
An unmonitored alarm only makes noise. Monitored intruder alarms connect your system to a 24/7 Alarm Receiving Centre (ARC), so every activation triggers a verified response: keyholder, police or both, day or night.
We register your police Unique Reference Number (URN), set your escalation protocol and give you control of the system from your phone.
24/7 ARC monitoring
Signals handled by an NSI-approved Alarm Receiving Centre, every hour of every day.
Keyholding & response
Nominated keyholders alerted instantly, with optional keyholding and guard response.
Police response
Registered police URN with confirmed activation for a fast, prioritised response.
App control
Arm, disarm and check status from your phone, with alerts and a full event log.
Intruder & burglar alarm projects
Expect Distribution
Expect Distribution is a family-owned warehousing and logistics provider with four West Yorkshire sites, a 130-vehicle fleet and more than 500,000 sq. ft. of space. Centurion supported its intruder and security requirements as the business expanded.
What our clients say
Sectors we protect
Commercial & Office
Discreet graded intruder alarms with app control for workplaces, managed offices and business parks.
View sector →Retail
Burglar alarms, monitoring and verified response for stores, trade counters and retail parks.
View sector →Industrial & Warehousing
Grade 3–4 wide-area intruder detection and perimeter protection for logistics and manufacturing.
View sector →Education
Monitored intruder alarms integrated with access control and lockdown for schools and colleges.
View sector →Healthcare
Resilient intruder protection and controlled access for clinical environments and care homes.
View sector →Why businesses choose our intruder alarms
Three decades as a dedicated commercial security company, NSI Gold accredited, in-house and accountable from first survey to final BS EN 50131 certificate.
NSI Gold accredited
Every intruder alarm is designed and signed off to BS EN 50131 by NSI Gold third-party certified engineers. Your insurer and police force get the documentation they need as standard.
Commercial only
We focus entirely on business premises. Every system accounts for stock value, insurance terms and the realities of a working site, rather than stretching domestic kit across a commercial building.
End-to-end in-house
Survey, design, installation, commissioning and monitoring are delivered by employed Centurion engineers. The team that specifies the system stays accountable through handover.
Regional, rapid response
Engineers based across Yorkshire and the North mean faster maintenance visits and emergency call-outs. Local staff handle local sites without extended national call-centre delays.
Intruder alarm installation across Northern England
From our Huddersfield base, our accredited engineers install and monitor commercial intruder alarm systems across Yorkshire, the North West and the North East, with fast response times from locally-based staff.
Counties we serve
Popular locations
Related security solutions
CCTV Systems
HD surveillance with verified activation that confirms intruder alarms and cuts false police call-outs.
View CCTV systems →
Access Control
Fob, card and biometric entry that integrates with your intruder alarm for set/unset and lockdown.
View access control →
Fire Alarm Systems
BAFE-certificated fire detection to BS 5839-1, the life-safety half of a fully protected premises.
View fire alarms →Frequently asked questions
How much does a commercial intruder alarm system cost?
Cost depends on the size of your premises, the grade of system your insurer requires (BS EN 50131 Grade 2–4), whether it's wired, wireless or hybrid, and the level of monitoring. A small office system starts at a few hundred pounds; larger graded, monitored systems for industrial sites cost more. We provide a clear, fixed-price quote after a free security survey.
What grade of alarm does my business need?
Your grade is usually set by your insurer and your risk profile. As a guide: Grade 2 suits shops and small offices, Grade 3 covers higher-risk commercial and retail premises, and Grade 4 protects high-value or industrial sites. We confirm the right grade during your survey and certificate the system to BS EN 50131 so it satisfies your policy.
Do you offer monitored intruder alarms?
Yes. We connect your system to a 24/7 NSI-approved Alarm Receiving Centre, register your police Unique Reference Number (URN) and set your escalation protocol: keyholder, police response or both. Monitored intruder alarms turn an activation into a verified response whether your premises are occupied or not, and you can arm, disarm and check status from your phone.
Can the alarm integrate with CCTV and access control?
Yes. Verified CCTV confirms intruder activations and cuts false police call-outs, while access control can set and unset the alarm and trigger lockdown. Because we design, install and monitor all of it in-house, the same Centurion team owns the integration from survey to handover.
Can you take over a system another company installed?
In most cases, yes. We'll survey your existing intruder alarm, advise on any remedial work needed to bring it up to current BS EN 50131 standards, and put it on a planned-maintenance contract with 24/7 emergency call-out. We'll also tell you honestly whether a replacement is more cost-effective than ongoing repair of an ageing system.
Book your free security survey
Tell us about your premises and we'll recommend the right grade of intruder alarm with a clear, fixed price. As an NSI Gold accredited installer, every system is backed by certificated, in-house engineering, monitoring and clear handover documentation.