August is peak heat pump season in New Zealand. The power bills from June and July have landed, the house still feels cold at 7am, and thousands of Kiwi households are asking the same question: how much does a heat pump actually cost? The honest answer is “it depends” — but that’s not much use when you’re comparing quotes. So here are the real numbers for 2026: typical installed prices for high wall, floor console, multi-split and ducted systems, what makes one quote $1,500 dearer than another, and what should be included in the price. If you’d rather talk to a human, our heat pump installation team provides free, no-obligation quotes across Auckland.

Heat Pump Prices in NZ at a Glance (2026)

For most NZ homes, a single high wall heat pump — one indoor unit, one outdoor unit — costs between $2,500 and $6,500 supplied and installed in 2026. Where you land in that range mostly comes down to the size of the space you’re heating. Larger and more complex systems scale up from there.

System type Typical installed price (2026) Best suited to
High wall — small room (up to ~25 m²) $2,500 – $3,500 Bedrooms, studies, small offices
High wall — medium area (25–45 m²) $3,200 – $4,800 Lounges, standard living areas
High wall — large open plan (45 m²+) $4,500 – $6,500 Open-plan kitchen/living/dining
Floor console $2,800 – $4,800 Replacing old fires or night-store heaters
Multi-split (2 rooms) $5,500 – $7,000 Lounge plus a bedroom off one outdoor unit
Multi-split (3–4 rooms) $7,000 – $14,000 Several rooms without ductwork
Ducted (whole home) $8,000 – $18,000 Whole-home heating and cooling with zoning

Two caveats. These are typical ranges drawn from 2026 industry price guides and our own installed pricing — metro labour rates mean Auckland quotes often sit towards the upper end of each band. And “installed” is the word that matters: a unit price in a retail flyer is not a working heat pump on your wall.

Why Installation Is Roughly Half the Bill

A common surprise for first-time buyers: the unit itself is only around half of the total price. The rest is skilled, licensed work. Handling the gas-charged refrigerant pipework legally requires a licensed technician, and the electrical connection needs a registered electrician. On top of that sit mounting brackets, copper pipework, condensate drainage, controller setup, commissioning and warranty registration. That’s why a heat pump advertised for $1,500 at a retailer typically becomes a $3,000–$3,500 job once it’s properly installed — and why DIY installation isn’t an option in New Zealand. It’s illegal without the right licences, and it voids the manufacturer’s warranty.

Install complexity moves the price too. A “back-to-back” install, with the outdoor unit directly behind the indoor unit, is the cheapest configuration. Every extra metre of pipe run typically adds $50–$80, and awkward access or multi-storey mounting adds labour time.

What Moves Your Quote Up or Down

  • Capacity. A 2.5 kW unit for a bedroom costs far less than a 7–8 kW unit for an open-plan living area. Sizing should be calculated for the room, not guessed — see our heat pump sizing guide.
  • Brand and series. An entry-level model and a premium designer series from the same brand can differ by $1,500 or more.
  • Install access. Long pipe runs, upstairs units, difficult wall materials and tight outdoor spaces all add labour.
  • Extras. Wi-Fi control is built into most modern units, but standalone smart controllers and premium filtration add a few hundred dollars.

Ducted Heat Pump Costs by Home Size

Ducted systems are the whole-home option: one unit in the ceiling cavity, with ducts feeding discreet grilles in each room and zone control so bedrooms and living areas can run at different temperatures. In 2026, typical installed pricing lands at:

Home and zoning Typical installed price (2026)
Smaller home, 3 zones $8,000 – $10,000
Average family home, 4–5 zones $10,000 – $14,000
Larger home, 6+ zones, premium brand $12,000 – $18,000

Retrofitting ducted into an existing home can cost more than the same system in a new build, because ceiling-cavity access in older homes is often tight. A site visit is the only way to price it accurately.

What a Good Heat Pump Quote Should Include

The fastest way to tell two quotes apart is to check what each one actually covers. A quote that looks $600 cheaper often has an exclusion buried in it. Before you sign, make sure the price in front of you includes:

  • A sizing calculation, not a guess. The recommended capacity should be based on your room dimensions, glazing, insulation and aspect.
  • The full pipe run. Quotes often assume a short back-to-back run. If your outdoor unit needs to sit around a corner, that extra pipework should be priced in, not added later.
  • Electrical work. Some homes need a dedicated circuit or switchboard work. It should be identified at the site visit, not discovered on install day.
  • Condensate drainage and make-good. Where the water goes, and how any penetrations are sealed and tidied.
  • Commissioning and warranty registration. A unit that is charged, tested and registered with the manufacturer — this is what protects your warranty.
  • Rubbish removal and old unit disposal, if you are replacing an existing system.

Most single high wall installs are completed in half a day once the crew is on site, so the disruption is smaller than people expect.

A Cheap Quote Isn’t Always the Cheap Option

Over a 10–15 year life, the biggest costs of a heat pump are running costs and how long the unit lasts — not the install price. An undersized bargain unit runs flat out on cold nights, chews through power and wears out early. A poorly commissioned install can leak refrigerant within a few years. A well-sized, properly installed unit that costs a little more upfront usually works out cheapest over its life — and if you’re replacing a unit that’s 10–15 years old, a modern inverter model can cut heating power use meaningfully; see our heat pump replacement service. Whatever you install, an annual clean and check through our maintenance and repairs team keeps it running at the efficiency you paid for.

Frequently Asked Questions

How much does it cost to install a heat pump in NZ?

In 2026, a single high wall heat pump typically costs $2,500–$6,500 supplied and installed, depending on room size, brand and install complexity. Multi-split systems run roughly $5,500–$14,000, and whole-home ducted systems $8,000–$18,000.

Why does installation cost so much on top of the unit?

Because around half the price is licensed labour and materials: a licensed refrigeration technician, a registered electrician, copper pipework, drainage, commissioning and warranty registration. DIY installation is illegal in NZ and voids the manufacturer’s warranty.

How much does a ducted heat pump system cost in NZ?

Typically $8,000–$10,000 for a smaller 3-zone home, $10,000–$14,000 for an average family home with 4–5 zones, and $12,000–$18,000 for larger homes with 6+ zones. Retrofits can cost more than new builds due to ceiling access.

How long does a heat pump installation take?

Most single high wall installs are done in about half a day. Multi-split systems usually take a full day, and ducted installations run over several days depending on the number of zones and ceiling access.

How much does a heat pump cost to run?

Expect roughly 30–80 cents per hour on a cold evening for a well-sized unit, depending on your power plan and insulation. That’s far cheaper per unit of heat than plug-in electric heaters — our running costs guide has the full breakdown.

Get a Fixed Installed Price for Your Home

Price guides get you in the ballpark; a site visit gets you a real number. Air Conditioning Group installs Mitsubishi Electric, Daikin and Panasonic heat pumps across Auckland, and every quote is based on your actual room, wall and pipe run — so the price you’re quoted is the price you pay. Request a free quote online or call us on 0800 224 123 and get sorted before the next cold snap.