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Electrical jobs

Commercial electriciansFit-outs, maintenance, and the paperwork a business keeps.

Commercial electrical work runs from a café fit-out to tracking down a tripping circuit in a workshop. The rules are the same national ones that cover homes: whoever does or supervises the work must be registered and hold a current practising licence, and every job ends with certificates. What changes is the scale, three-phase supply, specialised areas and the records a business is expected to keep.

Find the specialist for this job

  1. Your postcode and a few quick questions
  2. We match a licence-checked local electrician who specialises in your kind of job
  3. They call you to talk it through. No obligation to go ahead.
  • Practising licence and insurance checked before they hear about your job
  • One specialist for your kind of job, not a list of five to ring around
  • Only the electrician who takes your job gets your contact details
A commercial ceiling with suspended LED batten lights, a cable tray and air-conditioning ducts.
Photo: Muharrem Alper on Pexels

Updated 29 October 2026 · Written by the Sparky Next Door team · How we check our facts

The jobs that come up

Fit-outs for shops, offices and hospitality. Lighting upgrades. Extra circuits and outlets as a business grows. Three-phase supply for machinery or a commercial kitchen. EV chargers in the car park. Fault-finding when a circuit keeps tripping and costing you trading time.

Some sites need more than a general electrician. The Electrical Workers Registration Board (EWRB) classes work in medical, hazardous and mining locations as high-risk. From 1 September 2026, Electricians and some other classes need an extra endorsed class, from their next licence renewal, to work in mining operations, medical cardiac protected areas, hazardous areas or on mains parallel generation systems. If your site has any of those, ask about the endorsement up front.

Check the people, not just the company

New Zealand licenses electrical workers as individuals. For each person who'll do or supervise the work, check their registration class and a current practising licence, which has to be renewed every 2 years. Their licence ID carries a photo, the class, a registration number and an expiry date, and the digital version has a QR code linking to the public register.

Some larger organisations hold an EWRB Employer Licence, which lets their own staff do prescribed electrical work under the organisation's safety and quality systems. People on contracts for service can't work under it, so subcontractors each need their own licence.

Apprentices are normal on commercial jobs. Supervision has to come from a licensed worker in the same scope of work, and anyone supervising more than two trainees at once needs an endorsed supervision class.

Certificates and high-risk work on a business site

Every job should end with an Electrical Safety Certificate (ESC). New or extended circuits and sub-boards also get a Certificate of Compliance (CoC). High-risk work, such as mains work, solar PV or a higher-capacity switchboard, needs an independent inspection by a licensed electrical inspector, who issues a Record of Inspection.

Records of Inspection are logged on WorkSafe's Electricity and Gas High-risk Database, which you can search by address. WorkSafe says those records aren't the certification itself, only part of what's in it, so keep the real documents on file. Electrical workers must keep certification records for 7 years, which helps if yours go missing.

If the electrical work is part of a consented fit-out, the electrical certificate (an energy work certificate) must go in with the application for the code compliance certificate. Agree early whether your builder or your electrician is handling that.

What the scope should spell out

  • Every circuit, outlet and light, drawing by drawing.
  • Which parts are general work and which, if any, are high-risk and need an inspector.
  • Who deals with the lines company if the supply has to change.
  • Working hours, shutdowns and how long the power will be off.
  • Who'll be on site: the licensed workers, any apprentices, and who supervises them.
  • The certificates you'll receive, and who in your business they go to.

Contracts, disputes and consumer law

The Consumer Guarantees Act covers services bought for personal, domestic or household use. A business job may fall outside it, which makes a clear written scope and contract matter more, not less.

If something goes wrong, start with the electrician or company that did the work. The EWRB can look at the safety and compliance of the work, but it can't make anyone fix it and can't settle payment or contract disputes. The Disputes Tribunal deals with claims up to $60,000, including whether a tradesperson has done work properly.

Your staff, and the licensed part

You can

  • Report damaged leads, cracked plugs and anything warm or sparking, and take it out of use.
  • Reset a tripped breaker or RCD once, and call an electrician if it trips again.
  • Keep switchboards clear and easy to reach.
  • Book regular test and tag for portable appliances if your workplace does it.

Leave to a licensed electrician

  • Fixed wiring, new circuits and switchboard work.
  • Repairs to appliances used at work. WorkSafe's appliance-owner code only covers domestic appliances kept mainly for the owner's own use.
  • Any electrical work by employers or employees, unless they're registered and hold a current practising licence.

Getting matched

Tell us the job, the kind of premises and your town. We'll match you with one licence-checked electrician who does commercial work of that kind, and they'll go through the scope with you before quoting.

If it were our business

We'd get the scope in writing before anything starts: every circuit, which parts are high-risk, who talks to the lines company, and when the power will be off. Then we'd check the licence of each person who turns up, not just the company name on the van, and file every certificate where the next manager can find it.

Want a specialist to sort it?

Tell us the job and your postcode. We match the licence-checked local electrician who does this kind of work, and they call you. No ring-around, and your number goes to them alone.

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Questions

Straight answers.

How do I check a commercial electrician is licensed?

Ask each person for their licence ID, check the photo and expiry date, and look them up on the EWRB public register. The register also shows whether they've been disciplined in the last three years. How to check a licence walks through it.

Do we need three-phase power?

Machinery, big kitchens and some EV chargers may need it; plenty of offices and shops don't. It depends on what you run. Three-phase power upgrades explains what's involved.

What if we never receive the certificates?

Ask in writing. The EWRB can discipline electrical workers for certification that isn't supplied in the required timeframe, and its complaint guidance lists the certificate, or your request for one, among the documents to send with a complaint.

Can our maintenance person do small electrical jobs?

Only if they're registered and hold a current practising licence. WorkSafe says employers and employees can't do electrical work in a workplace otherwise.

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Pop in your postcode and answer a few quick questions. We find the licensed local specialist for the job.

In your city

Commercial electricians near you

Where this information comes from

Rules change, so check with the EWRB, WorkSafe or Tenancy Services if something matters to your job. How we write and check these pages.

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