Commercial Electricians In Northern Ireland
Commercial Electricians
In Northern Ireland

Projects Wired Right. First Time, Every Time.

McCullagh Electrical are a team of specialist commercial electricians in Northern Ireland.
We execute large-scale projects and provide precise compliance work across the country.

Our mission is to deliver high-calibre, reliable and timely electrical services to commercial projects across all of Northern Ireland.

Seasoned Experts

Decades of experience. No shortcuts. No cut corners. Just expert work, done right the first time.

Certified & Qualified

NICEIC certified and professionally trained to the highest safety and quality standards.

Clean & Tidy Ethos

Clean, considerate, and professional. We leave every space exactly as we found it — or better.

Regional Service

Fast, reliable service across Northern Ireland. Trusted by businesses, builders, and contractors alike.

What Sets Us Apart?

We’re A Family Dedicated To Electrical Services

With over 40 years of combined electrical experience, our family came together to create McCullagh Electrical

We established this company with a clear mission: “To provide precise, reliable and timely electrical services to commercial projects across Northern Ireland.”

  • Family-Run with a personalised, tailored approach.
  • Precise Estimations for large-scale projects, ensuring budget control.
  • Fully Certified, insured and compliant with all industry standards.
  • Timely & Reliable services means your project is completed on schedule.
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Retail
Location
Belfast
Duration
5 Months
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Construction
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Office
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Elite Services delivered outstanding results. Their professionalism and expertise made a significant impact on our project. I am impressed and would highly recommend them.

Laura
Rodriguez
Project Manager
Elite Services

Visionary Group provided exceptional service. Their team was dedicated and went above and beyond to ensure our satisfaction. I am grateful for their hard work and commitment.

Daniel
Martinez
Visionary Group

Dynamic Marketing took our brand to the next level. Their strategies were effective and tailored to our needs. I am pleased with the outcome and would recommend them to others.

Jessica
Garcia
Dynamic Marketing

Smart Solutions helped us streamline our operations. Their expertise and support were invaluable. I am very satisfied with the results and would work with them again.

Chris
Miller
Smart Solutions

Innovative Designs brought our ideas to life. Their creativity and professionalism made the entire process enjoyable. I highly recommend them to anyone looking for design services.

Sarah
Brown
Innovative Designs

Future Vision provided us with outstanding service. Their team was knowledgeable and attentive, ensuring that all our needs were met. I am truly impressed with their work.

David
Wilson
Future Vision

NextGen Technologies exceeded our expectations. Their attention to detail and commitment to excellence were evident throughout the project. I am grateful for their support and expertise.

Emily
Davis
NextGen Technologies

Working with Global Enterprises was a game-changer for our business. Their innovative approach and dedication to client success made all the difference. I would recommend them to anyone.

Michael
Johnson
Global Enterprises

Creative Solutions transformed our marketing strategy. Their insights and expertise helped us reach new heights. The results speak for themselves, and I couldn't be happier with the outcome.

Jane
Smith
Creative Solutions

I had a fantastic experience with Tech Innovations. Their team was professional, responsive, and delivered exactly what we needed. I highly recommend their services to anyone looking for quality and reliability.

John
Doe
Tech Innovations
Trusted Electrical Services For Northern Ireland

Expert Electricians For Construction & Commercial Projects

McCullagh Electrical are a team of specialist electricians serving commercial and construction projects across Northern Ireland. We deliver our high-standard of work with integrity, precision, and a clear focus on client needs. Our aim is to continue our expansion through quality of work, not project volume.

Blue and white outline of a lightning bolt symbol, illustrating concepts like electrical wiring, rewiring, and power systems.

Complete Wiring & Rewiring Services

Safe, compliant wiring and rewiring for new build projects, extensions, and property renovations.

White outline icon of a checklist on a sheet of paper with a blue pencil to the right, suggesting writing or completing an electrical compliance or PAT certification form.

PAT Testing & EICR Certification

Fast, compliant Electrical Installation Condition Reports (EICRs) and PAT Testing.

Blue outline of a wrench overlaid on a white outline of a screwdriver in a cross formation representing commercial electrical fit-outs

Commercial Fit-Outs & Installations

Full fit-outs, power, lighting, and containment systems for commercial spaces.

Blue and white outline icon of a construction hard hat, representing electricians and electrical subcontractors working on new build construction projects.

Electrical Services for Construction

Reliable subcontracting for both new build and commercial projects.

White outline of two meshing cogs with blue lightning bolt sparks flying out, symbolising electrical maintenance, repairs, and system upgrades.

System Upgrades & Maintenance

Extensive electrical upgrades and ongoing maintenance to reduce fires and keep your business safe.

White outlined icon of a residential house with a blue lightning bolt symbol at its centre, signifying domestic and residential electricians in Northern Ireland.

Domestic Installations and Services

Skilled domestic electricians for home rewires, repairs, and installations.

Our Specialist Service

New Builds Projects, Done Right

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.

An image of a new home under construction with electrical contractors on site. The sun rises or sets gently in the background, behind the house.

Dependable Commercial
Electricians in Northern Ireland

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.

Call: 0793 629 1729
No obligations, just expert advice
Explore Our Services
Learn what we do best

Our Gallery of Work

Explore a selection of our completed projects, showcasing the quality and precision that define McCullagh Electrical.

Construction
Fit-Outs
Testing

Electrical Subcontracting for New Build Commercial Premises in Belfast

Full subcontracted electrical installation for a newly built commercial facility, including first and second fix, distribution board, and final tests.
Domestic
Construction

Implementing Energy Efficient Lighting

Explore energy-efficient lighting solutions to reduce consumption and enhance sustainability.
Construction

Exploring Renewable Energy

An overview of renewable energy systems, including solar, wind, and hydroelectric power.
Domestic
Maintenance
Wiring

Creating a Smart Home

Discover various smart home automation projects to enhance convenience and energy efficiency.
Domestic
Maintenance

Designing Effective Home Lighting

Explore the principles of home lighting design to enhance ambiance and functionality in living spaces.
Domestic
Maintenance
Construction

Essential Electrical Tools

A guide to essential tools for electrical work, including their uses and safety precautions.
Testing
Wiring
Construction

Wiring Diagram Essentials

Learn how to create effective wiring diagrams for various electrical projects.
Testing

Staying Safe with Electricity

Essential safety tips for working with electricity to prevent accidents and ensure a safe environment.
Your Project Journey, Made Simple

Four Simple Steps to Your Completed Electrical Project

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.

1

Initial Consultation

Reach out via phone, WhatsApp, email, or our contact form to discuss your project requirements.

2

Receive a Detailed Quote

We’ll assess your project and provide a detailed, no-obligation quote, ensuring clarity on scope and budget.

3

Work Commences

Our skilled electricians begin work, following a tailored plan to ensure quality and efficiency on-site.

4

Project Handover

Once work is completed, we clean behind ourselves and conduct a thorough inspection to ensure compliance, safety, and satisfaction.

The Power Behind McCullagh Electrical

A Family Run Team Of Skilled Electricians

With over 40 years of combined experience, our family run team is dedicated to providing exceptional electrical services for commercial and construction projects across Northern Ireland.  We’re passionate about delivering reliable results and growing alongside our clients.

Jane Smith
Lead Developer

Jane is a skilled software engineer with a passion for developing innovative solutions and mentoring junior developers.

Sara Lee
Marketing Specialist

Sara excels in digital marketing strategies and has a knack for crafting compelling content that engages audiences.

Mike Johnson
UX/UI Designer

Mike focuses on creating user-friendly interfaces and enhancing user experiences through thoughtful design.

David Brown
Data Analyst

David analyzes complex data sets to provide actionable insights that drive business decisions and improve performance.

Avoid Delays. Choose A Team Of
Proactive, Communicative Electricians.

Stay Ahead Of Costly Problems, Download Our Free Electrical Checklist

Give us a ring, or send us a message. We're always happy to run through your project scope to see how our services can best help you.

Get In Touch With Us
Clear answers from qualified professionals.
A Look Behind The Scenes

Life Outside the Job

Our team is made up of people with diverse passions and hobbies. From extreme sports to exploring the world and everything in between, here’s a look at what keeps us inspired beyond the workplace.

Ready For Necarne Endurocross

Race day prep starts with respect for the machine. Every bolt checked, chain tightened, and filter cleaned. Precision matters at Necarne.

P37 at Roof of Africa '24

12.5 hours of racing across 3 brutal days in the Maseru Mountains. First time in the competition and finished P37 out of 288.

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Editing is where the magic happens, as it involves piecing together footage to create a coherent story. Editors work closely with direcff

Capturing the Vision e

Cinematography is the art of capturing images on film or digital media. Cinematographers use various techniques, such as lighting

Creating Immersive Environments

Set design plays a crucial role in filmmaking, as it helps to create the world in which the story unfolds. Designes universe.

Exploring the Creative Process

Filmmaking is a complex art that involves various stages, from scriptwriting to post-production. Each phase r
Your Local Electrical Experts

Get in Touch With Us

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.

Opening Hours

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:

  • xx/xx/xx — xx-xx
  • xx/xx/xx — xx-xx
  • xx/xx/xx — xx-xx
Monday
06:00-18:00
Tuesday
06:00-18:00
Wednesday
06:00-18:00
Thursday
06:00-18:00
Friday
06:00-18:00
Saturday
06:00-13:00
Sunday
Closed

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:

  • xx/xx/xx — xx-xx
  • xx/xx/xx — xx-xx
  • xx/xx/xx — xx-xx
Opening Hours
Monday
06:00-18:00
Tuesday
06:00-18:00
Wednesday
06:00-18:00
Thursday
06:00-18:00
Friday
06:00-18:00
Saturday
06:00-13:00
Sunday
Closed

WhatsApp

07936291729

Location

Our Location
Areas Served

Your Questions, Answered

Find answers to common queries about our services, process, and how how we work.
If you need more information, just give us a call or fill in our enquiry form.

Find answers to common queries about our services, process, and how how we work. If you need more information, just give us a call or fill in our enquiry form.

How frequently should I have my electrical system serviced?

It is recommended to have your electrical system serviced at least once every three to five years. However, if you notice any issues or if your building has undergone significant changes, more frequent inspections may be necessary.

What are emergency electrical services?

Emergency electrical services are available for urgent situations that require immediate attention, such as power outages, electrical fires, or exposed wiring. It's important to have a reliable electrician on call for such emergencies.

What are energy-efficient lighting solutions?

Energy-efficient lighting solutions include LED lights and smart lighting systems that reduce energy consumption while providing adequate illumination. These solutions can significantly lower electricity bills and enhance the sustainability of your business.

What are the benefits of hiring commercial electrical services?

Hiring commercial electrical services ensures that your electrical systems are installed and maintained by professionals. This can lead to increased safety, compliance with regulations, and improved energy efficiency, ultimately saving you money in the long run.

What does commercial electrical work entail?

Commercial electrical work involves the installation, maintenance, and repair of electrical systems in commercial buildings such as offices, retail stores, and warehouses. This type of work requires specialized knowledge of electrical codes and safety regulations.

What factors affect the cost of commercial electrical services?

The cost of commercial electrical services can vary based on factors such as the complexity of the job, the materials used, and the electrician's experience. It's best to get a detailed estimate before proceeding with any work.

What should I look for when hiring an electrician?

When hiring an electrician, consider their qualifications, experience, and customer reviews. Ensure they are licensed and insured, and ask for references to verify their work quality. It's also important to get multiple quotes to compare pricing.

Why are electrical inspections important?

Electrical inspections are crucial for ensuring the safety and efficiency of your electrical systems. They help identify potential hazards, ensure compliance with local codes, and can prevent costly repairs down the line.

Still have questions?

Visit our contact page to get in touch and ask a question.

Ready to Power Your Project?

Contact the McCullagh team for dependable service and expert advice tailored to Northern Ireland’s commercial needs.

Expert electrical solutions, delivered with integrity.

Talk To The Team
Ready when you are
View Our Recent Work
See how we bring projects to life