Results Driven Commercial Electricians In Northern Ireland
Specialist electrical services for commercial and construction projects across NI — delivered with precision, speed, and integrity.
Let’s power your next project — get in touch today.
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Specialist electrical services for commercial and construction projects across NI — delivered with precision, speed, and integrity.
Let’s power your next project — get in touch today.
At McCullagh Electrical our speciality lies in electrical fit-outs, contracting, testing, and upgrades for commercial and construction projects across Northern Ireland. We complete every one of our projects with integrity, precision, and a clear focus on long-term reliability.
Whether it's a new build, extension or full renovation, we’ll handle your wiring and rewiring with precision, safety, and long-term reliability in mind. Our team follows industry best practices and use high-quality materials to future-proof your electrical systems for any upgrades or expansions.
BS7671 is the UK standard for safe electrical installations. It’s the guidelines required to install fixed cabling within a building and ensures occupant safety
Stay compliant and reduce risk with fast, certified PAT testing and Electrical Installation Condition Reports. We’ll help you avoid costly fines and downtime by ensuring your equipment and installations meet the latest safety standards. Minimal disruption, maximum peace of mind.
Landlords in Northern Ireland who fail to carry out an EICR every 5 years (or any remedial work) can receive a level 5 fine (unlimited maximum penalty).
From lighting and power to full containment systems, we deliver commercial electrical installations that meet regulations, deadlines, and your build spec. Our experienced team works closely with your project managers to ensure seamless integration and quality workmanship every step of the way.
A well-designed lighting system can cut your energy bills by up to 60% in commercial buildings.
We partner with contractors to deliver reliable, regulation-ready electrical work on commercial and new build sites, from first fix to final sign-off. Our flexible scheduling and clear communication keeps your build timeline on track and compliant at every stage.
We offer flexible subcontracting and provide end-to-end electrical services across all stages, from temporary power to final certification.
Keep your electrical systems efficient, compliant, and ready for the future. From upgrades to proactive maintenance, we keep your business running. Our ongoing support helps prevent unexpected failures, reduces energy costs, and extends system lifespan.
Faulty electricals cause 19,000+ UK home fires yearly and around 25% of commercial fires. It is vital you frequently maintain your systems and appliances.
Trusted by homeowners across Northern Ireland, our domestic electricians deliver safe, neat and reliable work — from full rewires to small repairs. We take pride in our clean and tidy ethos, striving to make every home electrical project hassle-free.
Faulty domestic wiring causes thousands of house fires annually. Routine checks and maintenance are essential for the safety of you and your family.
With over a decade of experience in commercial installations, new build projects are where we do our best work.
From accurate take-offs and planning to complete electrical fit-outs and final certification, we deliver safe, fully compliant systems that keep schedules on track.
Whether you're a contractor, architect, or developer, you can count on us to show up, plug in, and get the job done right — first time.
We believe in transparency and efficiency from start to finish.Our process is designed to give you peace of mind, ensuring every step is smooth and your project is delivered on time and to spec.
Reach out via phone, WhatsApp, email, or our contact form to discuss your project requirements.
We’ll assess your project and provide a detailed, no-obligation quote, ensuring clarity on scope and budget.
Our skilled electricians begin work, following a tailored plan to ensure quality and efficiency on-site.
Once work is completed, we clean behind ourselves and conduct a thorough inspection to ensure compliance, safety, and satisfaction.
From site readiness to third fix, McCullagh Electrical delivers expert, reliable solutions tailored for Belfast and Northern Ireland’s commercial projects.
Speak to the team today for a free site consultation, or explore our services to see how we keep projects running smoothly.
Working on a project and have a few questions? Call us or send a message on WhatsApp.
We’re here to help you move forward with clarity and confidence.
Due to the bank holiday on xx/xx/xx we will be closed.
We will reopen as normal on xx/xx/xx.
Christmas opening hours:
Contact the McCullagh team for dependable service and expert advice tailored to Northern Ireland’s commercial needs.
Expert electrical solutions, delivered with integrity.
