Intruder Alarms

With over 30 years’ experience supporting businesses across the UK, we know that burglary and unauthorised access threaten more than just assets—they disrupt operations, compromise safety, and damage reputation. That’s why our intruder alarm solutions go beyond basic deterrence, combining advanced detection, smart monitoring, and tailored response protocols—helping you meet insurance requirements, reduce risk, and maintain complete confidence that your premises are secure around the clock

Speak to one our Security specialists to find the best solution for you.

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Trusted by some of the UK’s leading companies

Areas & Sectors we service

At FMSG, we’ve made a conscious decision to focus our services within select UK counties—not to limit our reach, but to raise our standards. By operating within a defined region, we’re able to maintain exceptional service standards, respond faster, support our teams more effectively, and build stronger, longer-lasting relationships with our clients. It’s not about covering more ground—it’s about delivering more value where it matters most.

Over the last three decades we have become experts in a variety of sectors, some of our specialisms include:

  • Manufacturing
  • Private Airfields
  • Sporting & Stadia
  • Single and Multi-Site Office Complexes
  • Large Industrial Estates
  • Vehicle Dealerships
  • Hotels
  • Haulage & Transport
  • Student Accommodations
  • Golf & Spa Complexes
  • Estate Agents
  • Schools and Colleges
  • Retailers
  • Solicitors and Accountants

With our Intruder Alarm Solutions, you can...

Deter criminal activity

Unsecured premises are far more likely to attract opportunistic theft and vandalism, which can lead to costly disruption and reputational damage.
Our intruder alarms serve as a visible deterrent while providing rapid detection of unauthorised access. By acting as both a warning and a defence, they help stop crime before it has a chance to impact your people, assets, or operations.

Meet insurance requirements

Many insurers require accredited and properly maintained alarm systems as a condition of cover, and non-compliance can leave businesses exposed to legal or financial risk.
FMSG installs and maintains fully compliant intruder alarm systems designed to meet insurance and regulatory standards. This not only safeguards your protection in the event of a claim but also gives you the confidence that your premises are secured to the highest benchmarks.

Protect your assets and operations

Theft or forced entry doesn’t just cause immediate financial loss—it can also compromise critical equipment, disrupt productivity, and create long-term operational setbacks.
Our tailored intruder alarm systems provide reliable, site-specific protection that minimises risk to valuable assets and keeps your business running with minimal downtime. By protecting what matters most, you can maintain continuity even in the face of security threats.

Gain peace of mind with 24/7 protection

Security incidents rarely happen during office hours and leaving your premises vulnerable overnight or on weekends can be a costly gamble.
FMSG’s monitored intruder alarm systems provide continuous protection around the clock, instantly alerting key personnel or emergency responders the moment a threat is detected. With our proactive monitoring and support, you can rest assured your site is safeguarded at all times.

Our Intruder Alarm Solutions Encompass

We evaluate your premises to identify vulnerabilities, high-risk areas, and potential access points—recommending intruder alarm solutions that protect people, assets, and business operations while supporting compliance with insurance and regulatory standards.

Site Security Assessments

We evaluate your premises to identify vulnerabilities, high-risk areas, and …

Alarm systems are tailored to your site, operational requirements, and risk profile—ensuring optimal sensor placement, reliable coverage, and seamless integration with access control, emergency exits, and monitoring services.

Intruder Alarm Design

Alarm systems are tailored to your site, operational requirements, and …

From warehouses and factories to offices and retail spaces, we install robust intruder alarm systems that safeguard staff, equipment, and business continuity—delivering dependable protection across every type of site.

Industrial & Commercial Intruder Alarms

From warehouses and factories to offices and retail spaces, we install robust intruder alarm …

Regular inspections and proactive servicing ensure intruder alarm systems remain fully operational, compliant, and ready to respond at any time—minimising downtime and maintaining peace of mind.

Maintenance Plans

Regular inspections and proactive servicing ensure intruder alarm systems remain fully …

Our accreditations

Explore our full range of Fire & Security solutions

At FMSG, we’re proud to deliver a comprehensive range of fire and security solutions built around the needs of modern businesses. Whether it’s cutting-edge fire detection systems, CCTV surveillance, intruder alarms, or access control, we tailor every project to your site, risks, and operational requirements—helping you protect people, safeguard assets, and maintain compliance with confidence.

To get started with your intruder alarm solution please request a quote.

We are always on hand to answer any questions, so please feel free to contact us on 03333444570 or fill out our contact form below.

Yes. Most commercial insurers require a system that meets BS EN 50131 standards, typically categorised as Grade 2 (for general retail/offices) or Grade 3 (for high-risk sites like warehouses or pharmacies). A Graded system ensures the alarm has the appropriate level of anti-masking technology and tamper protection. FMSG provides a full risk assessment to ensure your installation meets your insurer’s specific requirements, protecting you from “non-disclosure” claims in the event of a break-in.

A “Bell-Only” alarm relies on neighbours or passers-by to alert the authorities, which is often ignored. A Monitored Intruder Alarm is connected to an Alarm Receiving Centre (ARC) 24/7. When a sensor is triggered, the ARC immediately verifies the signal and can initiate a Police Response (via a URN) or alert your designated keyholders. This ensures a guaranteed response even when your premises are unoccupied at night or during weekends.

Absolutely. Modern “Smart” intruder alarms allow you to arm and disarm your system remotely from any smartphone. You can receive real-time push notifications if a specific zone is triggered, see which staff member set the alarm last, and even integrate the system with your CCTV or Access Control. This gives business owners total visibility and control over their site security without needing to be physically present at the keypad.

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