An industrial electrician installs, tests and maintains the electrical systems in workshops, factories, warehouses and larger commercial units, rather than homes. The work centres on three-phase power, machinery, distribution boards and panel work, fit-outs and ongoing maintenance, at a scale and power level beyond domestic wiring. It is a different discipline from a house electrician, and it is worth understanding the difference before you book anyone.
How is an industrial electrician different from a domestic one?
The core skills overlap, but the environment and the power are not the same. A domestic electrician works on the single-phase wiring in your home, sockets, lighting, a consumer unit, an EV charger. An industrial electrician works on systems that run a business, often on three-phase supplies, with far higher loads, bigger cabling, motors and machinery, and switchgear that bears little resemblance to a domestic fuse board. The stakes are different too, because downtime on a commercial site costs money by the hour, so reliability and getting things back running fast matter as much as the install itself. The same person can be skilled at both, what changes is the type of installation in front of them.
What is three-phase power and why does it matter?
Most homes run on single-phase electricity, one live supply that comfortably handles lighting, sockets and household appliances. Larger premises and heavier equipment need three-phase power, which delivers three live supplies together and can carry much greater loads smoothly. Big motors, industrial machinery, large compressors, commercial kitchens, car ramps and three-phase EV or fleet charging all tend to need it. Working safely on three-phase is a defining part of industrial work, the cabling, the distribution and the protection are all sized and arranged differently from a domestic job, and the fault levels are higher. It is one of the clearest lines between a home electrician and one set up for heavy commercial and industrial sites.
What does an industrial electrician actually do?
The day-to-day spans installation, fault-finding and maintenance. Typical work includes:
- Distribution boards and panel work, the larger commercial equivalent of a consumer unit, distributing power around a site and protecting circuits.
- Machinery and equipment connections, wiring in motors, production machinery, compressors and fixed plant, often three-phase.
- Commercial and workshop fit-outs, taking a unit or workshop and installing the power, lighting and sockets a business needs to operate.
- Lighting installations, including low-bay and high-bay lighting in workshops and warehouses, plus emergency lighting.
- Testing, inspection and maintenance, keeping installations safe, compliant and running, and finding faults fast when something stops.
- Fault-finding under pressure, diagnosing why a machine or circuit has gone down and getting it back on, which is its own fault-finding skill at commercial scale.
It is as much about keeping a working site running as it is about new installation.
What kind of premises need an industrial electrician?
The work tends to live in places where power does real work rather than just lighting rooms, workshops, garages, factories, warehouses, units on industrial estates, commercial kitchens, gyms and similar. A vehicle workshop is a good example, needing three-phase supplies for ramps and equipment, robust low-bay lighting across the floor, emergency lighting, and plenty of well-placed sockets and machinery connections, all installed to commercial standards and certified. The heavier the machinery and the higher the load, the more specialist the work becomes.
Where does Snelling Electrical fit in?
Snelling Electrical is based in Dalgety Bay and works mainly across domestic, EV and light commercial jobs in Fife and Edinburgh. On the commercial side that means shops, offices and small business units, the electrical installation a small business actually needs, lighting, power, sockets, fault finding, testing and maintenance, all certified. Jack visits the site, scopes the job properly against what the business uses power for, and provides a written quote within 24 hours, the same person who then does the work and signs it off. You can see the commercial side on the commercial page.
Where a job is genuinely heavy industrial, large three-phase machinery, major distribution or factory plant, that is specialist territory, and Jack will tell you honestly if it sits outside his scope rather than take on something that is not the right fit. Being straight about that is part of doing the job properly.
How do I know if I need an industrial or a commercial electrician?
If the work is in a business premises, involves three-phase power, machinery or larger lighting and distribution, or has to keep a site running with minimal downtime, it is commercial or industrial work rather than a domestic job. The practical step is the same either way, get someone qualified to look at the site, understand how the business uses power, and scope it properly. A quick conversation usually makes it obvious which it is, and for shops, offices and small business units across Fife and Edinburgh, Snelling Electrical covers it, so there is no need to work it out before you call.