Heat Pump Installation Cost in NZ

Published 2026-06-02 · Taupō Electricians

What a heat pump install involves

A heat pump install is two trades working together: the refrigeration technician mounts the indoor head and outdoor unit and runs the pipework, and the electrician handles the power side. That electrical work is what makes it safe and compliant — and it's a step plenty of cheap quotes skim over.

The electrician's job is to run a dedicated circuit from your switchboard to the unit, fit the right breaker and isolating switch, confirm your board has the spare capacity, and certify the connection. For a single high-wall heat pump it's straightforward; for a multi-room ducted system it's a bigger electrical job.

The electrician's role: circuit, switchboard, certification

• Dedicated circuit — a heat pump shouldn't share a circuit with other loads; it needs its own protected run
• Switchboard capacity — older Taupō boards are often full or still on ceramic fuses, so a switchboard upgrade may be needed first
• Isolation & safety — an isolating switch so the unit can be safely worked on later
• Certification — a Certificate of Compliance for the electrical work, which matters for insurance

What you'll pay in 2026

As a guide, a supplied-and-installed single high-wall heat pump in NZ runs roughly $2,500–$4,500 in 2026, and a ducted whole-home system $10,000–$20,000+. The electrical portion is a slice of that — but if your switchboard needs upgrading to take the new circuit, budget another $1,500–$3,500 on top. Every home is different, so we quote on site.

Sizing for cold Taupō winters

This is where a lot of people get caught out. The central North Island sees frosts and single-digit days through winter, so an underpowered heat pump runs flat-out and never quite warms the room. A unit sized for the room volume, ceiling height and insulation will heat comfortably and run cheaper. We'll make sure the electrical supply matches the unit you actually need — not the smallest one that fits the budget.

How we can help

• Home electrical & heat pump wiring
• Switchboard upgrades