Heat pump installation in Whangarei
Getting a heat pump installed comes down to two things: the right size for the room, and an installer who sites it properly so it dries the house out as well as warms it.
What it costs
Prices below are supplied and fitted, covering the unit, brackets, pipework, the electrical connection and the tidy-up. Three things move the price: how far the pipe has to run, how easy the wall and the outdoor spot are to reach, and how big a unit the room needs.
| Type | Supplied & fitted | Suits |
|---|---|---|
| High-wall single room | $2,000 to $2,900 | Around 2.5kW, and the cheapest of the lot to buy and to fit. |
| High-wall main living area | $2,900 to $4,200 | A 5 to 6kW unit, which is what a standard living area usually takes. |
| High-wall large or open-plan | $3,800 to $5,800 | A 7 to 8kW unit for a knocked-through living, dining and kitchen space. |
| Multi-split 2 to 3 rooms | $5,000 to $9,500 | Several rooms off one outdoor unit. Good for a bungalow where ducting isn’t practical. |
| Multi-split 4 or more rooms | $9,500 to $14,000 | One or two outdoor units feeding heads through the bedrooms as well as the living area. |
| Ducted whole home | $12,000 to $25,000+ | Even heat through the house with nothing visible but the grilles. Easiest where there’s roof space. |
You'll get a firm price once your installer has the right measurements and details of your job. Costs can vary a lot, and the cost page goes into why.
What’s included in the price
Supply and install is handled as one job, so there's no chasing a separate supplier and sparky.
- The heat pump, sized to your room
- Wall brackets and the outdoor mount
- Insulated pipework and the condensate drain
- Electrical connection and certification
- Commissioning and a run-through of the controls
- A tidy-up before they leave
- Manufacturer warranty on the unit
- Removal of the old unit, if you're replacing one
How a heat pump installation works
A single high-wall is usually done in a day, start to finish.
Free quote
Tell us which rooms you want warm and a bit about the house. You'll get options and a price, usually before the end of the same day.
Site visit
Your installer measures up, checks the glazing and insulation, and works out where the indoor and outdoor units should sit.
The install
Three to five hours for a single high-wall. Longer for multi-room or an awkward wall. You get a realistic time at quote stage.
Commissioning
The system is tested, the electrical work certified, and you're shown how to run it so it heats well without stinging the power bill.
Which type of heat pump suits your home
Most Whangarei homes end up with a high-wall in the main living area, but it's not automatic. If you want the whole house even, or there's nowhere sensible to hang a unit, one of the other types of heat pump will serve you better.
High-wall
The default and the cheapest. Mounts high on the wall and heats one room well. The constraint in the older villas through Kensington and the Avenues is finding a wall with enough clear run above the furniture.
Floor console
Sits at skirting height and pushes warm air across the floor, which suits villas with high ceilings. Also the answer when picture rails and sash windows leave no wall space to spare.
Ceiling cassette
Recessed into the ceiling and blows in four directions, so it covers an open-plan space evenly. You need the ceiling cavity for it, which rules out some flat-roofed homes.
Multi-split
One outdoor unit running two to four indoor heads. Tidier than several separate systems, and on a coastal site it means one outdoor unit to protect from salt instead of three.
Ducted
Ducts through the roof space to grilles in every room. Nothing visible and even heat throughout, and the option worth pricing in the newer Ruakaka and One Tree Point builds with the roof volume for it.
What size heat pump do you need
This matters more than brand or price, and it's where most disappointing installs go wrong.
Bedroom or single room
About 2.5kW.
Main living area
5 to 6kW.
Large or open-plan
7 to 8kW.
Those suit a room in reasonable shape. Single glazing, uninsulated walls or a lot of west-facing glass and you go up a size.
Two rooms the same size can need different units
A single-glazed villa in Kensington or Riverside loses heat steadily all evening, so it needs more capacity than a tight newer build at One Tree Point with insulation and double glazing. Houses down on the flat near the Hatea, where cold air pools and the morning fog hangs about, ask a little more of the unit again.
Why buying big backfires here
An undersized unit runs flat out and never quite gets there. An oversized one is worse in a climate like ours: it reaches the set temperature fast, shuts down, and leaves the moisture in the room, so the windows fog up again as soon as it stops. Warm and still clammy.
A correctly sized unit holding a low steady output is what actually dries a Whangarei house out. You can get a rough figure yourself with the heat pump sizing calculator, then your installer confirms it on site against the glazing, the insulation and which way the room faces.
Replacing an old heat pump
On the coast, a replacement comes round sooner than you'd expect.
If your existing unit is ten or more years old, struggling, or throwing error codes, replacing usually works out better than repairing. Parts for older models get scarce, and efficiency has moved a long way. Near the water there's a second reason: salt eats the aluminium fins on the outdoor unit, and once they have gone chalky and started crumbling the unit can't shed heat properly no matter what you do to it.
Existing pipework can sometimes be reused if it's the right size and in good condition, which brings the cost down. More often it's replaced, because an old pipework contaminated with the previous refrigerant shortens the life of a new system. Your installer will tell you which applies once they have had a look. Removing and disposing of the old unit is included in the quote.
If someone else fitted your current unit, that's fine. Your installer will still come out, look at what is there and quote you on a replacement.
Consent and electrical work
You don't need building or resource consent for a standard high-wall heat pump. A ducted system in a new build or a major renovation is usually covered by the consent for that work rather than needing its own. Whangarei District Council is the authority on any of that, so check with them if your situation is unusual.
The electrical side does have to be done properly. The hard-wiring is carried out by a registered electrician and certified, and the refrigerant work by someone holding an approved filler licence, which is a legal requirement in New Zealand. Both are handled as part of the install and you get the paperwork.
Two situations worth raising before work starts: heritage-listed homes, and units in a body corporate or cross-lease where there may be rules about where an outdoor unit can go. Your installer will flag either at quote stage rather than on the day.
Looking after your heat pump
A heat pump does a lot of the drying-out work through a Whangarei winter, so a clean filter and a clear outdoor coil make a real difference to how well it runs and how long it lasts. A wash and a check once a year is usually enough.
If you're near the coast, add one habit: rinse the outdoor coil with fresh water every few months. A garden hose on a gentle setting, from the side, never a water blaster. It takes two minutes and it's the single best thing you can do for the unit's life.
Your local installer services and repairs the systems they installed, so they know how yours was sized and what's behind the wall. Book a service or see what is involved.
Common questions about heat pump installation
How much does heat pump installation cost in Whangarei?
A high-wall unit supplied and fitted runs from about $2,000 to $2,900 for a single room, $2,900 to $4,200 for a main living area and $3,800 to $5,800 for a large or open-plan space. Multi-split systems covering two to three rooms are $5,000 to $9,500, and whole-home ducted starts around $12,000. How far the pipework has to go, and how easy the wall and outdoor spot are to reach, are what move the price within those ranges.
How long does it take to install a heat pump?
Most single high-wall installs take three to five hours, so you're warm the same day. A long stretch of pipework, a tricky wall or more than one unit can stretch it to a full day. Multi-split and ducted systems take longer and are planned in advance. You get a realistic time at the quote stage.
What size heat pump do I need?
It depends on the room's floor area and ceiling height, how much glazing it has, how well insulated the house is and which way it faces. As a rough guide a bedroom might need 2.5kW, a living area 5 to 6kW and a large or open-plan space 7 to 8kW, and an uninsulated older Whangarei house needs to go a size up on what the floor area alone suggests. The sizing calculator gets you a ballpark in a minute.
Should I buy a bigger unit to be safe?
No, and in a damp climate it's the common mistake. An oversized unit reaches temperature quickly, shuts off and leaves the moisture in the room, so the windows fog again as soon as it stops. A correctly sized unit running steadily on low dries the house far better.
Where should the heat pump go in the room?
The indoor unit goes high on a wall in the room you use most, clear of doors and furniture, blowing along the length of the space rather than straight at where you sit. The outdoor unit needs air around it and a short way back to the indoor head, and near the coast it belongs on the landward side of the house.
Can I install a heat pump myself?
No. Handling refrigerant requires an approved filler licence in New Zealand, and the hard-wiring has to be done and certified by a registered electrician. A DIY install also voids the manufacturer's warranty. You can do some of the prep, like clearing the wall and sorting access, but the install itself is a licensed job.
Do I need consent to install a heat pump?
Not for a standard high-wall unit. The electrical work is certified as part of the install. If your home is heritage listed, or you're in a body corporate or cross-lease with rules about outdoor units, check those before booking. Whangarei District Council is the authority on anything to do with consent.
What does a heat pump cost to run?
A correctly sized unit heating a living room through a Whangarei winter typically adds somewhere between $25 and $60 a month to the power bill, depending on how many hours you run it and how leaky the house is. Heat pumps deliver roughly three to four units of heat per unit of electricity, which is why they cost less to run than any plug-in heater.
Get a price for your place
Tell us the room and the state of the house, and your local installer will size it properly and quote you a fixed price.