Most people know when they need an electrician. Fewer know which kind. The difference between a commercial and industrial electrician comes down to where they work, what equipment they handle and how complex the job is, and domestic electricians are different again. At Entire Trades, we do domestic, commercial and industrial electrical work across Maitland, the Hunter Valley and the Central Coast, so we're asked this a lot. This guide explains the three in plain terms, with a focus on NSW licensing, safety and what it means for your job.

Key Takeaways

• Domestic, commercial and industrial electricians in NSW all hold the same core electrical licence. What sets them apart is experience and extra training.
• Commercial electricians work in offices, shops, schools, clinics and similar buildings. Industrial electricians work in factories, processing plants, workshops and other sites with heavy machinery and control systems.
• The main differences between commercial and industrial electrical work are the equipment, the control systems, the safety procedures and the scale of the job. Neither is "better". They solve different problems.
• Domestic (residential) electricians work in houses and units, mostly on single-phase power, lighting, power points and safety switches.

Domestic vs Commercial vs Industrial: Quick Comparison

Put simply, domestic electricians wire homes, commercial electricians wire buildings where people work, shop or learn, and industrial electricians wire the facilities where things get made or processed. All three work under the same licensing system in NSW, but the sites, systems and clients are different.

Domestic

• Typical sites: houses and units in suburbs like East Maitland, Rutherford and across the Hunter Valley
• Typical systems: single-phase power, lighting and power points, safety switches, smoke alarms
• Typical clients: homeowners and landlords
• Typical job length: a few hours to a couple of days

Commercial

• Typical sites: shops, offices, schools, medical clinics, cafes and restaurants, strata common areas
• Typical systems: larger switchboards, three-phase supply, emergency and exit lighting, data cabling, security systems
• Typical clients: business owners, facility managers, builders, strata managers
• Typical job length: days to months, plus scheduled maintenance

Industrial

• Typical sites: manufacturing plants, food processing facilities, quarries, pumping stations, heavy workshops
• Typical systems: motors, variable speed drives, programmable logic controllers (PLCs), automation and control panels, heavy-duty switchgear
• Typical clients: plant managers, maintenance managers, production supervisors
• Typical job length: ongoing maintenance, planned shutdowns and breakdown call-outs

Whatever the site, anyone doing electrical wiring work in NSW needs a valid electrical licence, whether it's a ceiling fan in a Maitland home or a motor control upgrade at a Hunter Valley plant. For more on each type of work, see our residential electrician Maitland, commercial electrician Maitland and industrial electrician Maitland pages.

What Does a Commercial Electrician Do?

A commercial electrician installs and maintains the electrical systems in business and public buildings. These buildings have more people in them, draw more power and carry stricter workplace compliance obligations than a typical home.

Around the Hunter, commercial work includes shops in Maitland and Green Hills, cafes and restaurants, childcare centres, medical clinics, offices and strata common areas. Typical commercial electrical work includes:

• Installing and upgrading main switchboards and distribution boards
• Running three-phase circuits for air conditioning, commercial kitchen equipment and machinery
• Installing and maintaining emergency and exit lighting
• Test and tag of portable equipment, and RCD testing
• Data and communications cabling
• Lighting upgrades and fit-outs

Commercial electricians work from building plans and coordinate with builders, air conditioning installers and other trades, often on projects that run for weeks on one site. Much of the work in occupied buildings is scheduled outside trading hours so staff and customers aren't disrupted. If you're hiring for a business, our guide on how to choose the right commercial electrician covers what to look for.

What Does an Industrial Electrician Do?

An industrial electrician keeps machinery and production running. A commercial electrician looks after building services. An industrial electrician looks after the electrical systems that drive machines and processes.

In the Hunter Valley, industrial sites include food and beverage processing, quarries, heavy workshops and utilities such as pumping stations. The equipment is very different from a home or office:

• Large motors and motor control centres
• Variable speed drives and soft starters
• PLCs and automation that control how a production line behaves
• Sensors, limit switches and other field devices wired back to control panels
• Heavy-duty cabling, cable trays and terminations
• Switchgear rated for industrial loads

Much of an industrial electrician's time goes into fault-finding on control systems and preventive maintenance, because unplanned downtime on a production line is expensive. Many also do commissioning and testing during planned shutdowns, and they carry specialised diagnostic gear for motors, drives and controls.

Commercial vs Industrial Electrician: Work Environment

The biggest practical difference between commercial and industrial electricians is the environment they work in. The licence is the same. The day-to-day is not.

Commercial electricians usually work:

• Indoors in finished or partly finished buildings
• On fit-outs and refurbishments with site inductions
• In tenanted buildings where work has to be quiet and tidy, often after hours
• Alongside business owners, school staff and centre managers

Industrial electricians usually work:

• In noisy plants with rotating machinery and live production lines
• Under permit-to-work systems and lock-out/tag-out procedures
• Around shift work and planned shutdowns
• With stricter PPE and access controls, sometimes including confined spaces

Both environments are tightly controlled for safety. Commercial sites are more public-facing. Industrial sites are more process-focused.

Commercial vs Industrial: Types of Electrical Systems

Commercial electrical systems are designed to run a building, and industrial electrical systems are designed to run machines and processes. That shapes everything from the equipment to the drawings on the job.

Commercial systems:

• Usually three-phase supply feeding multiple distribution boards
• Lighting and power circuits, air conditioning connections, security and access control, emergency lighting
• Cable routes through ceiling spaces, risers and conduit
• Compliance with the Wiring Rules and building requirements for occupied spaces

Industrial systems:

• Three-phase systems supplying motors and process equipment
• Control wiring, field devices and safety circuits such as emergency stops and interlocks
• Larger loads and switchgear, and on some sites high-voltage equipment that needs specialist competency

The drawings differ too. Commercial electricians work from building services and ceiling plans. Industrial electricians work from control schematics and machine wiring diagrams. If three-phase power is new to you, our guide to 3 phase power in Australia explains the basics.

Domestic vs Commercial Electrician

Whether you need a domestic or commercial electrician mostly depends on the type of property and the scale of the job.

A domestic electrician works in houses and units and handles:

• New homes and renovations around Maitland
• Switchboard upgrades, safety switches and smoke alarms
• Extra power points, LED lighting, ceiling fans and hot water circuits
• Fault-finding and repairs

Domestic jobs usually take hours to a couple of days, and the client is the homeowner.

Commercial electrical installations are bigger and have more requirements: larger loads, emergency and exit lighting, commercial kitchen power, multi-tenancy metering, and more documentation and maintenance scheduling for workplaces with staff and customers on site. The main differences between domestic and commercial electrical installation are scale, documentation and the extra rules that apply to buildings open to the public.

Licensing, Training and Regulation in NSW

In NSW, domestic, commercial and industrial electricians all start with the same apprenticeship and core qualification, and they need the same electrical licence to do wiring work. Specialisation comes from experience and extra training, not a different licence class.

• Electrical licences are issued by NSW Fair Trading. Entire Trades holds NSW Electrical Licence 370051C.
• Electrical installations must comply with AS/NZS 3000, the Wiring Rules.
• A Certificate of Compliance for Electrical Work is issued when notifiable electrical work is finished. From 1 July 2026, these are submitted through the NSW eCert portal.
• Level 2 ASP (Accredited Service Provider) authorisation is needed for work on service lines, metering and connections to the network. That's relevant to commercial and industrial jobs that involve supply upgrades. Our article on what a Level 2 electrician is and when you need one explains more.

Industrial work often needs training beyond the base licence. Hazardous areas, high-voltage equipment and complex automation all call for specialist competencies. Whoever you hire, choose a contractor who is licensed, insured and gives you documentation for the work.

Safety and Risk: Commercial and Industrial Compared

Electric shock, arc flash, fire and equipment damage are real risks on commercial and industrial sites, but the hazards differ.

Commercial settings:

• Public safety comes first in shops, offices and schools where staff, customers and children are present
• Emergency and exit lighting needs regular testing and maintenance
• Regular RCD testing and test and tag help keep the installation safe between services

Industrial settings:

• Moving machinery, higher fault energy and multiple energy sources (electrical, hydraulic, pneumatic) raise the risk
• Lock-out/tag-out, isolation checks and risk assessments come before any work on equipment
• Safe Work Method Statements and permit-to-work systems are standard

Both sectors work under WHS laws and the Wiring Rules, and industrial sites usually add their own site-specific procedures and inductions. Entire Trades is fully insured and follows safe work practices on every domestic, commercial and industrial job.

How Commercial and Industrial Electricians Work With Other Trades

On commercial and industrial jobs, electrical work rarely happens on its own.

On an office fit-out or shop refurbishment, a commercial electrician works alongside builders, air conditioning installers, data installers and security specialists, with site meetings and programs keeping everyone on track.

Industrial electricians work with mechanical fitters, production supervisors and engineers, with timing planned around production windows and shutdowns. When a conveyor motor fails, the electrician works with the maintenance team to isolate it, find the fault and get the line running again.

Both need good communication: reading drawings, recording changes, handing over documentation and explaining systems to the people who'll use them. Because we work across residential, commercial and industrial sites, mixed-use and expansion projects are easier to coordinate.

Choosing Between Commercial and Industrial Electrician Careers

For apprentices and young electricians, commercial and industrial work suit different people.

Commercial work may suit someone who likes structured building sites, working from plans and seeing projects come together. It involves more contact with business owners and building managers, and plenty of variety.

Industrial work may suit someone who's interested in how machines and processes run and enjoys fault-finding under pressure on motors, drives and control systems. It can involve shift work and breakdown call-outs.

Plenty of electricians move between domestic, commercial and industrial work over their careers, building on the same trade qualification. If you want a broader look at the trade, see Electricians 101: what they are and what they do.

How Entire Trades Supports Domestic, Commercial and Industrial Clients

Entire Trades is a family-owned electrical business based in Maitland, serving the Hunter Valley and Central Coast since 2017. We do domestic, commercial and industrial electrical work.

• Domestic: repairs, renovations, safety upgrades and switchboard work
• Commercial: offices, shops, schools, hospitality venues and strata common areas
• Industrial: workshops, light industrial plants and processing facilities

Our credentials:

• NSW Electrical Licence 370051C
• Level 2 ASP authorisation
• Fully insured
• Certificate of Compliance issued for electrical work
• Free, written, itemised quotes before work starts

Call us on (02) 4905 0901 if you're not sure which kind of electrician your job needs. You can also read more on our commercial and industrial pages.

Commercial vs Industrial Electrician: Which Do You Need for Your Job?

Whether you need a commercial or industrial electrician depends on the site and the equipment, not the address.

• A shop refit, office expansion, classroom upgrade or restaurant kitchen usually calls for a commercial electrician.
• Production lines, large motors, conveyors, automated equipment and control panels usually call for an industrial electrician.
• Mixed sites, such as a warehouse with offices and a small production area, may need both skill sets on the one project.

We can look at your job, tell you whether it's domestic, commercial or industrial work, and send the right people. You don't have to guess. Call (02) 4905 0901 for a free, itemised quote.

Frequently Asked Questions

Can one electrician do domestic, commercial and industrial work in NSW?

Yes. A licensed electrician in NSW can legally work on domestic, commercial and industrial installations, because the licence doesn't split by sector. Most electricians build deeper experience in one or two areas, and complex industrial, high-voltage and hazardous-area work needs extra training and site inductions.

Is commercial electrical work more technical than domestic work?

Commercial jobs are usually bigger, with more detailed drawings and documentation, three-phase supply, emergency lighting and workplace safety obligations. But tracking down a fault in an older home with decades of DIY changes can be just as tricky. Look for a licensed electrician with experience in your type of property.

When do I need an industrial electrician instead of a commercial electrician?

You generally need an industrial electrician when the job is about machinery, production lines, process controls or plant-wide power, rather than building services like lighting, air conditioning and power points. Installing or fault-finding a conveyor, a variable speed drive or a process pump are typical examples.

Do commercial and industrial electricians use different tools?

Many of the tools are the same, such as multimeters, insulation resistance testers and hand tools. Industrial electricians are more likely to carry diagnostic gear for motors, drives and control systems, and may need heavier-duty PPE and access equipment for the site.

How can I check an electrician is properly licensed and insured in NSW?

Use NSW Fair Trading's online licence check to confirm an electrician's licence number and details. Ask for proof of insurance, a written quote, and a Certificate of Compliance for notifiable work. Entire Trades holds NSW Electrical Licence 370051C and provides free, written, itemised quotes on every job.