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From full-scale installations to EICR testing — reliable, compliant, and trusted by businesses.

McMillan Electrical provides professional electrical services across Redhill, Reigate, Merstham, and Earlswood, supporting offices, schools, retail parks, and landlords.
We handle everything from EICR inspections and fire alarm systems to full commercial installations — all NICEIC-certified and BS 7671 compliant.

We have been providing top-notch electrical services to homeowners, landlords, and businesses for over 20 years. Our team is comprised of certified professionals who are passionate about delivering high-quality work and exceptional customer service. We pride ourselves on our reliability, professionalism, and commitment to excellence.
NICEIC-approved & fully insured
20 + years’ experience in commercial, retail, and landlord projects
Fast response times across Surrey
Fully compliant with BS 7671
5★ reviews from offices and schools
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"We worked with Ron and his amazing team on a big rewiring and lighting project on a listed residential property. They were onsite for 3-4 months and Ron diligently checked in on the team and project most mornings. They were a pleasure to have around - a great choice of contractor. Highly recommended!"

"We highly recommend McMillan Electrical. Really good communication with us from getting the quote to doing the job. They were polite and always checked with us where we wanted things etc, really professional and trustworthy."

"Ron and his team were fantastic. They were punctual, efficient, thorough and reasonably priced. My house was upgraded significantly and I was left very happy with the results. Will use them again and recommend them to anyone"
In Redhill and Reigate, businesses and property owners rely on McMillan Electrical to keep their buildings running safely and efficiently. Our NICEIC-approved team works with offices, warehouses, and landlords to maintain compliance and prevent electrical disruptions.
These are some of the most common issues we uncover and fix in local commercial properties:
Outdated lighting and control gear in offices
Emergency lighting not meeting BS 5266
Overloaded warehouse circuits
Poor bonding and earthing systems
Missing surge protection for IT equipment
Thermal faults in high-load panels
Gaps in EICR or compliance documentation
We keep your property safe, efficient & inspection-ready.

Everything you need to know about our trusted electrical services across Redhill & Reigate and surrounding areas.
Absolutely — all work meets NICEIC and BS 7671 standards.
Yes — we provide scheduled electrical maintenance to help businesses and landlords stay compliant and prevent costly breakdowns.
We do — including offices, schools, warehouses, and new home installations.
We also serve Dorking, Horley, Crawley, and Banstead.

Call McMillan if you notice:
Repeated circuit trips or blown fuses
Burning smell or overheating consumer units
Flickering lights or load fluctuations
Faulty EV charger or socket outlets
Failed EICR report items (C1/C2)
Data or lighting system disruptions
Early repairs prevent downtime and ensure compliance.
Electrical safety begins at home. Our Redhill and Reigate electricians help local homeowners protect their families, prevent electrical faults, and stay fully compliant with essential safety checks like these:
Test smoke alarms & RCDs monthly
Upgrade old fuse boards to RCBO units
Replace worn sockets and cables
Use surge protection on major appliances
Book an EICR every 5 years for peace of mind

Reigate Business Park
Located on the edge of town, Reigate Business Park is home to a range of modern offices and service-based companies. It’s a key area where we support local businesses with reliable electrical installations, maintenance, and compliance testing to keep operations running smoothly.
Redhill Aerodrome Industrial Estate
A well-known hub for logistics, manufacturing, and storage, Redhill Aerodrome Industrial Estate plays an important role in Surrey’s commercial network. Our team assists industrial clients here with power distribution, lighting systems, and electrical safety checks tailored to high-demand environments.
Priory Park
A favourite among residents and visitors, Priory Park in Reigate is known for its open green spaces, café, and family-friendly facilities. It’s a reminder of the vibrant community spirit we’re proud to support through safe, dependable electrical work across the area.
Reigate High Street & Redhill Town Centre
From historic shopfronts in Reigate to the growing mix of retail and residential spaces in Redhill, these town centres reflect the heart of local life. We’re proud to help maintain safe electrical systems that keep these spaces bright, efficient, and welcoming.
We’re proud to power the businesses, community spaces, and homes that keep Redhill and Reigate thriving — helping Surrey stay safe, connected, and future-ready.
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