Specialists in Fire & Security

Helping people stay safe and compliant, since 1987.

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Our Services

Security Systems

Tailored Solutions for Homes & Businesses

We offer advanced security solutions to protect your premises from threats. Our services include:

  • Intruder Alarms
  • CCTV Surveillance
  • Access Control
  • Perimeter Security
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Life Safety Systems

Ensuring Compliance & Safety

Protect your employees, customers, and assets with industry-leading life safety solutions:

  • Fire Alarm Systems
  • Emergency Lighting
  • Disabled Refuge Systems
  • Gas Detection & Suppression
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Maintenance & Monitoring

24/7 Protection & Rapid Response

Regular maintenance and monitoring ensure your systems work when you need them most:

  • 24/7 Alarm Monitoring
  • Planned Preventative Maintenance
  • Emergency Call-Outs
  • System Health Checks
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Compliance & Training

Empowering Businesses & Teams

We provide certified training to ensure compliance and system effectiveness:

  • Fire Safety Training
  • Security System Training
  • First Aid & Emergency Response
  • Fire Warden Training
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Proven Expertise in Security & Fire Solutions

Discover how we’ve helped businesses and organisations across Northern Ireland with bespoke security and fire safety solutions.

City Quays 3, Belfast

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City North Hotel, County Meath

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AJ Power, Craigavon

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The Odyssey Complex, Belfast

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Who We Are

Diamond protect lives and safeguard assets with intelligent life safety and security systems.

Diamond Systems is a second-generation family business, NSI Gold-accredited, and trusted across Northern Ireland and beyond. Our expertise in security and life safety systems ensures the highest level of protection for homes and businesses.

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What Our Clients Say

We pride ourselves on providing an exceptional service to our clients, read what our clients have to say about working with us.

“At United Feeds, we trust Diamond Systems. This is why we continually put the safety of our people and assets in their hands.”
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“Diamond are our partner for both our security and fire alarms. They are professional, efficient and deal with any requests quickly.”
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“Have used this company for many years and would happily recommend to anyone seeking a professional and efficient service. They have always been helpful and carry out all our annual inspections to a high standard.”
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“Trusted, preventative maintenance of our Fire Detection and Alarm System. Highly Recommend!”
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News

Latest Posts

ICC Belfast to Host The Responsibility to Protect Conference in March 2026

On Wednesday 25 March 2026, industry leaders, regulators and safety specialists...

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Martyn’s Law: What Schools, Colleges & Universities Need to Know

Martyn’s Law – officially the Terrorism (Protection of Premises) Act 2025...

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Why NI Businesses Are Switching to P50 Fire Extinguishers

Most workplaces still rely on traditional steel fire extinguishers without giving...

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