Family-run & local
You deal with people who put their name on the work — not a call centre. Local, accountable and proud of every installation.
About GDC
Protecting what matters most
At GDC Fire & Security, we provide professional fire and security solutions for businesses across Belfast and Northern Ireland. As a multi-award-winning, family-run company, we combine technical expertise, quality workmanship and exceptional customer service to help protect your people, property and business.
Our story
Built on trust, backed by accreditation
At GDC Fire & Security (NI) Ltd, we're a multi-award-winning, family-run business dedicated to protecting people, property and businesses across Northern Ireland, the Republic of Ireland and mainland UK.
We specialise in the design, installation, commissioning, maintenance and repair of fire and security systems, including CCTV, intruder alarms, access control and fire detection. As an SSAIB, BAFE + PSA accredited company, we deliver solutions that are fully compliant, dependable and tailored to the unique needs of every client.
What sets us apart is our personal approach. We believe in building long-term relationships through honest advice, meticulous attention to detail and exceptional customer service. Whether it's a single-site installation or a nationwide maintenance contract, our experienced team is committed to delivering the highest standards of workmanship and ensuring every project is completed professionally, efficiently and with care.
- SSAIB, BAFE + PSA accredited installations
- Free, no-obligation surveys & clear written quotes
- Domestic & commercial · 24/7 · 365 support
What we stand for
The way we work
Accredited, always
SSAIB for intruder, CCTV and access control; BAFE for fire alarms. Every system is installed and certificated to recognised standards.
There when it matters
Monitoring and support available 24 hours a day, 365 days a year — because alarms don't keep office hours, and neither do we.
End-to-end service
Supply, install, commission, maintain and repair — one team responsible for your system across its whole life, not just day one.
Accreditations
Independently inspected & approved
Accreditation isn't a logo on a van — it means our work is independently audited against recognised industry standards.
Intruder alarms · CCTV · Access control · NIRE140
The SSAIB is a leading certification body for security service providers in the UK and Ireland. Our SSAIB registration means our intruder alarm, CCTV and access control installations are independently inspected against recognised security standards.
Fire alarm systems · Registered ID 302579
BAFE is the independent register of quality fire safety service providers. Our BAFE registration covers the design, installation, commissioning and maintenance of fire detection and alarm systems — so your premises stay safe and compliant.
Our ethos
"To provide a professional, cost-effective service with a strong emphasis on customer satisfaction and attention to detail."
Our core values
What we stand for
Integrity
We operate with honesty, transparency and professionalism, always doing the right thing for our clients.
Attention to detail
We take pride in delivering precise, high-quality workmanship, ensuring every installation is completed to the highest standard.
Excellence
We strive for excellence in everything we do, delivering reliable solutions without compromising on quality.
Reliability
We provide dependable fire and security solutions backed by responsive support and engineers you can trust.
Customer commitment
We build long-lasting relationships by delivering exceptional service and putting our customers at the heart of everything we do.
Innovation
We embrace the latest technologies and industry best practices to provide smarter, more effective fire and security solutions.
Awards & community
Proud of our work, proud of our people
NI Electrical Awards
Recognised as a Specialist Contractor at the NI Electrical Awards — a mark of the quality and care our engineers bring to every installation.
Lisburn & Castlereagh City Business Awards
Recognised for Business Success at the Lisburn & Castlereagh City Business Awards — celebrating growth built on doing right by our customers.
Northern Ireland Prestige Awards
Recognised in the Northern Ireland Prestige Awards for our standards of service, workmanship and customer care.
Three Best Rated
Rated one of the region's Three Best Rated fire & security companies — every year from 2022 through 2026.
Sponsorship & community
Giving back to our community
We're proud to support local sport, animal welfare and charities close to our hearts.
Cage Conflict
Proud sponsors of Cage Conflict, one of Northern Ireland's leading MMA promotions.
Matthew Elliot
Sponsors of professional MMA fighter Matthew Elliot, backing local sporting talent.
Belfast Junior MMA League
Supporting grassroots sport as sponsors of the Belfast Junior MMA League.
Gundog Rescue & Rehoming
Proud sponsors of Gundog Rescue & Rehoming, helping dogs find loving homes.
Marie Curie
Supporting the Marie Curie Cancer Fund for Children and the families it helps.
Epilepsy Ireland
Proud to support Epilepsy Ireland and the vital work they do across the island.
Testimonials
Trusted by homes & businesses
Rated 5 stars by homes & businesses across NI
★★★★★
The service from start to finish has been very professional, with every little detail looked after. Couldn't recommend them more highly.
★★★★★
Their commitment to top-notch service and diligent scheduled checks is truly commendable — extensive knowledge and experience.
★★★★★
Top-class installation and maintenance of our intruder alarm and fire safety system — and GDC helped us save over £1,000 a year.
Why GDC
Accredited expertise, local service
30+
Years combined experience
24/7
Monitoring & support
100+
5-star Google reviews
100%
Family-run & local
Let's talk about protecting your property
Book a free, no-obligation survey with our accredited Belfast team.