Ask three NZ sparkies what an EV charger install costs and you'll get three answers between $1,200 and $8,000. All three can be right — they're describing different jobs. The number you're quoted depends on three things: tier of charger, age of your switchboard, and how far the charger is from where the power comes in.
§01The three tiers, by total cost
Tier 01 (wall socket / 16A outlet) is the cheapest path — you supply your own portable EVSE, the sparkie installs an outdoor-rated socket on a dedicated RCBO. Tier 02 (dedicated 7kW unit) is the most-installed in NZ. Tier 03 (three-phase 22kW) is fastest but only feasible if your house already has three-phase supply.
| Tier 01 — wall socket | $650 – $1,650 total |
| Tier 02 — dedicated 7kW | $2,300 – $4,600 total |
| Tier 03 — three-phase 22kW | $4,000 – $8,000 total |
§04Switchboard upgrade — the silent line item
If your house was built pre-1990 and still has the original fuseboard, you'll almost always need a switchboard upgrade before tier 02 or 03 becomes safe. That adds $1,200–$2,400 on top of the install. A good installer will inspect the board on the quote visit and tell you up front; a less-good one finds it on day-of-install and bumps the price.
§07Where the regional spread comes from
Auckland sits ~18% above national median. Queenstown ~28% above. Wellington ~6% above. Christchurch ~6% below, Dunedin ~9% below. Smaller centres usually save you on labour but pay more on hardware freight.
§09Where the money actually goes (Tier 02, $3,500 install)
| 7kW charger hardware | $1,400 – $1,800 |
| Cable, conduit, RCBO | $300 – $600 |
| Electrician labour (1 day) | $900 – $1,400 |
| Commissioning + CoC | $200 – $350 |
| Margin / overhead | 8–12% |