About Us

Our Roots

Diamond was founded in 1987 by Tom Snoddon, a Belfast born and bred entrepreneur who saw a niche in the market for a local company with the capabilities to deliver complex fire and security projects, to a highly professional standard. The company’s original maxim was “Large enough to cope, small enough to care”. This personal level of service has been ever present throughout over 30 years in business, and our customers feel supported and protected. Diamond is a leading provider of high quality commercial security and life safety systems, including Fire Detection and Alarm Systems, CCTV, and Intruder Alarm Systems.

Our Growth

Sheer grit and determination saw Diamond survive not one, but two recessions. Huge changes in technology during our growth demanded a constant focus on innovation, research, and development. The ability to remain agile enabled us to respond to our customer’s ever-changing requirements with future-proof solutions. Early adoption of third-party approval with the leading industry body, and trading partnerships with innovative global equipment manufacturers, enabled our Belfast business to deliver world-class security and life safety projects. Today we are a second-generation family business with a reputation for excellence and innovation, always with the customers’ needs at the forefront of all our solutions.

Our Promise

Diamond take security and life safety projects seriously, and we will never compromise on safety. From concept through to conclusion, the customer’s needs and operational requirements are always pivotal to the design and delivery of the solutions we provide. Intelligence features throughout our entire process, from the selection of products and solutions we offer, through to the design, installation, commissioning and ongoing maintenance of the systems we deliver. The solutions provided by Diamond are future-proof and robust. Our customers make an intelligent choice in choosing Diamond as their security and life safety partner.

Our Mission

Our Mission is to protect lives and safeguard assets with intelligent security and life safety systems. Diamond strive to make your place of work, study, entertainment, or sleep, a safer place to be.

Alarm Maintenance and Monitoring by Diamond Systems


Why not contact us to compare our rates to what you are currently paying for maintenance and monitoring.


Find out more