Business Details
39 Years
experience
Emergency
services
Trusted Security & Fire Systems Solutions in Belfast
Established in 1987, Diamond Systems has grown from a local Belfast enterprise to a trusted provider of advanced fire and security solutions across Northern Ireland and beyond. As a second-generation family business, we combine over 35 years of industry expertise with NSI Gold accreditation to deliver tailored systems that protect lives and assets. Our comprehensive services encompass fire detection, CCTV surveillance, intruder alarms, access control, and emergency communication systems, supported by certified training programs. We prioritise innovation, maintaining partnerships with global manufacturers to ensure future-proof solutions.Our commitment to 'large enough to cope, small enough to care' ensures clients receive both technical excellence and personalised service. With 24/7 monitoring capabilities and rapid response teams, we provide continuous protection for commercial and residential properties. Our proven track record includes landmark projects at City Quays 3, The Odyssey Complex, and Sage Gateshead. Backed by long-term client relationships and industry recognition, we remain focused on intelligent design, rigorous compliance, and proactive maintenance to meet evolving safety challenges.
Services
CCTV Surveillance
Intruder Alarms
Fire Detection
Access Control
Emergency Communication
Details
- Year established: 1987
Highlights and features
- 35+ years' experience in fire and security systems
- NSI Gold-accredited engineering team
- 24/7 emergency monitoring and rapid response
- Tailored solutions for commercial and residential properties
- Partnerships with leading global equipment manufacturers
Associations and certifications
- NSI Gold
What people say
Professional, efficient
Highly recommend
Exceptional service
Annual inspections to high standard
Trusted preventative maintenance
Services
Fire Detection Systems
We design and install advanced fire detection systems meeting BS 5839 standards. Our solutions include addressable and conventional systems with emergency lighting integration. Regular maintenance ensures compliance and operational readiness for commercial properties.
CCTV Surveillance
Our high-resolution CCTV systems feature remote access and analytics capabilities. Tailored installations for retail, industrial, and residential properties include HD cameras, NVR storage, and 24/7 monitoring options with alarm verification.
Intruder Alarms
NSI Gold-approved intruder alarm systems with multi-zone detection. We provide graded solutions from basic premises protection to insurance-approved commercial systems with 24/7 monitoring and instant police response options.
Access Control
Electronic access control solutions including biometric readers, proximity cards, and mobile credentials. Systems integrate with fire safety protocols and support multi-site management through centralised software platforms.
Emergency Communication
Voice evacuation and emergency communication systems compliant with BS 5839-8. Solutions include disabled refuge systems, public address integration, and multi-language evacuation messaging for complex buildings.
People
Angela Bennett
Joint Managing Director
With over 20 years in fire and security systems, Angela leads strategic development at Diamond Systems. She oversees major projects and client relationships, maintaining the company's second-generation family values while driving technological innovation and NSI Gold compliance standards.
Questions
What fire and security accreditations do you hold?
We maintain NSI Gold accreditation, the UK's highest standard for fire and security providers, ensuring compliance with BS 5839 and other industry regulations.
Do you offer 24/7 emergency support?
Yes, our emergency support line operates 24/7 with rapid response teams available for urgent fire or security system issues outside regular business hours.
What areas do you cover?
While based in Belfast, we deliver systems across Northern Ireland, Republic of Ireland, and mainland UK, with recent projects in Cardiff and Kent.
Can you service both commercial and residential properties?
We provide tailored solutions for both sectors, from large-scale commercial installations to high-end residential security and fire detection systems.
What maintenance options are available?
We offer planned preventative maintenance contracts with quarterly inspections, system health checks, and priority call-out services to ensure ongoing compliance.
Videos
