Protecting people and property with systems that perform when it matters most, since 1987.
We offer advanced security solutions to protect your premises from threats. Our services include:
Protect your employees, customers, and assets with industry-leading life safety solutions:
Regular maintenance and monitoring ensure your systems work when you need them most:
We provide certified training to ensure compliance and system effectiveness:
Discover how we’ve helped businesses and organisations across Northern Ireland with bespoke security and fire safety solutions.
Who We Are
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.
More About Us
We pride ourselves on providing an exceptional service to our clients, read what our clients have to say about working with us.
News
The Terrorism (Protection of Premises) Act 2025, more commonly known as...
Read more >
Construction sites are prime targets for theft, vandalism, and trespassing. With...
Read more >
There’s a common misconception in commercial properties that once a fire alarm...
Read more >
View all News
Head Office Location