Electricians are responsible for some of the most critical systems in any building — yet many homeowners and employers have only a vague understanding of what the job actually involves. This matters, because knowing what an electrician does (and doesn’t do) helps you hire the right person, understand what you’re being quoted for, and know when something has been done well.
The Core Scope of Electrical Work
A registered electrician in New Zealand is qualified and licensed to install, maintain, and repair electrical wiring, systems, and fixtures in buildings. This spans a wide range: rough-in wiring during construction, switchboard installation and upgrades, lighting and power circuit installation, connection of appliances and equipment, testing and certification of electrical work, and fault finding and repair.
New Zealand law requires that most electrical work be carried out by or under the supervision of a registered electrician. This isn’t bureaucratic formality — incorrectly installed electrical systems are a leading cause of house fires, and the consequences of a fault can be catastrophic.
Different Types of Electricians
Not all electricians do the same work. The main categories relevant to building and construction in New Zealand are:
- Registered electricians: The standard qualification, covering residential and commercial installation work.
- Electrical inspector/certifier: Authorised to issue certificates of compliance for completed electrical work.
- Industrial electricians: Specialise in high-voltage systems, industrial motors, and process control equipment.
- Telecommunications/data technicians: While data cabling isn’t the same as electrical work, many electricians also work in this space.
What a Residential Electrician Does on a New Build
On a new residential build, an electrician typically completes the work in two stages. The first fix (before lining) involves running all the cable through the framing — power circuits, lighting circuits, data cabling, and connections to any specialist systems. The second fix (after lining) involves fitting all the outlets, switches, light fittings, and the switchboard, then testing and certifying the completed installation.
Hiring the Right Electrician
Always verify that your electrician holds a current registration and practising licence with the Electrical Workers Registration Board. Ask whether they carry professional indemnity and public liability insurance. Get a written quote that specifies the scope of work, materials to be used, and the certificate of compliance that will be issued on completion. The cheapest electrician is rarely the best value when you consider the lifetime of the installation and the liability for any defects.