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rom EICR testing to full-scale installations — reliable, compliant and delivered on schedule.

McMillan Electrical supports the commercial and residential communities of Horsham, including Foundry Lane, Horsham town centre, Broadbridge Heath and the surrounding business parks.
From retail units and offices to light industrial units, schools and managed homes, our local team delivers fast, compliant electrical work backed by full NICEIC certification.

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 across commercial and residential work
BS 7671 compliance guaranteed on every job
Fast response for Horsham and surrounding areas
5★ feedback from local businesses, landlords and homeowners
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"Ron, James et al were great - full house rewired, were tidy, very fast, and a great price! We were living in the house at the time, they were understanding working around our boxes and mess. Very happy to recommend."

"Ron and Teun were very professional, and the work was completed to a high standard. Very satisfied with the work and service and would highly recommend."

"It has been a pleasure working with Ron and his team. His prices were fair, the service throughout was great and the work was carried out to a high standard. The team also tidied up afterwards. I'd definitely recommend and will be using Ron again."
As trusted commercial electricians in Horsham, we help local businesses, landlords and facilities managers stay compliant and avoid costly downtime. Our team regularly tracks down and fixes the recurring electrical issues we see in offices, shops, warehouses and industrial units across the town, including:
Aging fluorescent lighting and non-compliant fixtures
Overloaded circuits in warehouses or offices
Emergency lights not passing tests
Poor earthing and bonding
Surge protection missing for IT systems
Thermal hot spots causing energy loss
Outdated switchgear failing compliance checks
We keep your site efficient, safe & audit-ready.

Everything you need to know about our trusted electrical services across
Horsham and surrounding areas.
Yes. We regularly work on Foundry Lane and other industrial areas in Horsham, carrying out EICRs, distribution upgrades, LED conversions and ongoing maintenance for warehouses and workshops.
Yes. McMillan Electrical is fully NICEIC-approved, and all work is carried out to BS 7671 standards, giving landlords, facilities managers and homeowners in Horsham peace of mind.
We do. Our team looks after industrial and commercial sites, schools and offices, as well as domestic properties needing rewires, board changes, EV chargers or additional circuits.
From Horsham we also serve Broadbridge Heath, Southwater, Billingshurst, Crawley and surrounding villages, supporting offices, warehouses, managed blocks and family homes.

Call McMillan if you notice:
Tripping RCDs or frequent breaker faults
Burning smells or hot consumer units
Flickering lights under load
EV charger faults or data dropouts
Failed EICR (C1/C2) issues
Emergency lighting malfunctions
Fix small faults before they become costly shutdowns.
Electrical safety starts at home. Our Horsham electricians help homeowners prevent hazards and stay compliant with simple, effective safety checks like these:
Test smoke alarms & RCDs regularly
Replace old fuse boards with modern RCBO units
Use surge protection on appliances
Ensure IP-rated fittings in bathrooms/outdoors
Schedule an EICR every 5 years

Foundry Lane Industrial Area
A key hub for warehouses, workshops and trade businesses in Horsham. We’re here regularly, helping local firms stay safe and compliant with EICRs, upgrades and planned maintenance.
Horsham Town Centre & Swan Walk
From high-street shops to offices and cafés, Horsham town centre relies on dependable electrics to keep tills running and customers safe. We support retailers and landlords with testing, upgrades and new installations.
Horsham Park & The Rec
A popular green space and community area, Horsham Park is a reminder of the town’s strong community feel — the same community we’re proud to support with safe, reliable electrical work in nearby homes and businesses.
We’re proud to keep Horsham’s businesses, community spaces and homes running smoothly — so the town stays well-lit, safe and moving forward
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