A heat pump is only as good as the design and installation behind it. The right installer will size the unit correctly for Dunedin's cold climate, recommend the best placement for noise, airflow, defrosting and aesthetics, and install it neatly so it performs efficiently for years.
This page highlights the Top 5 heat pump installers in Dunedin, based on independent research into reputation, service quality, customer feedback and overall reliability.

The top 5 heat pump installers in Dunedin are 1. Otago Air Conditioning, 2. McClelland Refrigeration, 3. The Heating Company, 4. HeatCo Dunedin, 5. Davies Heat 'n' Cool. Below we explain why each made the list, compare them at a glance, and share how to choose.
This featured position sits above the editorial Top 5 and is clearly labelled. It does not influence the rankings below.
Otago Air Conditioning are Mitsubishi Electric accredited installers with 20+ years of heat pump installation experience, offering residential and commercial supply, installation and ongoing servicing. Their experience makes them a strong all-round choice.
McClelland Refrigeration is a Fujitsu Accredited Installer and Mitsubishi Electric service centre for Dunedin, providing residential heat pump supply, installation and ongoing service and support. They suit homeowners who value strong after-sales backing.
The Heating Company offers a wide range of heat pumps with advice, installation and ongoing cleaning and maintenance support. They suit homeowners who want choice and help selecting the right unit.
HeatCo is a locally owned heating specialist providing single split, multi-split and ducted installation by accredited installers and registered electricians, with a comprehensive 6-year warranty. They're a strong choice for whole-home and warranty-backed installs.
Davies Heat 'n' Cool are Daikin-certified supply and installation specialists providing heating, ventilation and air conditioning solutions. They suit homeowners after a quality Daikin install from a certified specialist.
A quick comparison of our Top 5 picks.
| Heat Pump Installer | Best for |
|---|---|
| Otago Air Conditioning | Experienced, accredited installs |
| McClelland Refrigeration | Accredited installs with service backing |
| The Heating Company | Choice of units with expert advice |
| HeatCo Dunedin | Whole-home and warranty-backed installs |
| Davies Heat 'n' Cool | Certified Daikin installs |
Independent, editorial, and reviewed regularly.
TopChoice rankings are editorially curated by our New Zealand team and reviewed periodically. We don't host our own reviews — our shortlists draw on public reputation signals from Google and other platforms, alongside our own research into each heat pump installer. We weigh up a combination of:
We don't accept payment in exchange for a place in the Top 5 — featured placements are separate and always clearly labelled. Rankings may change over time as businesses evolve.
In Dunedin's cold winters, sizing is everything. A unit that's too small will struggle and ice up on frosty mornings, while one that's too big can short-cycle and feel uneven. A good installer assesses your room, insulation and exposure rather than offering one-size-fits-all.
Decide whether a single high-wall unit, a multi-split, or a ducted whole-home system best suits your home, and confirm the quote covers electrical work, pipe runs, brackets, drainage and any ceiling work. Ask who handles servicing and warranty issues after the install.
It depends on the heat pump type (high-wall vs ducted), home layout, access, electrical requirements, and whether you're replacing an old unit. Get an itemised quote that confirms what's included.
Ducted can be a great option for whole-home comfort, but it's a bigger design and install job and needs proper planning. Some Dunedin providers explicitly offer ducted systems — it's often worth considering for a new build or full renovation.
Not always, but accredited installers can be important for warranty conditions and brand-specific standards, and several Dunedin providers promote accreditation and warranty benefits. It's worth confirming for peace of mind.
It depends on the room size, ceiling height, insulation and how exposed the space is — and Dunedin's cold winters mean sizing up is often wise. A good installer will measure and recommend a unit with enough capacity to heat comfortably on the coldest mornings without short-cycling.
The unit has likely entered defrost mode, reversing its cycle to melt ice off the outdoor unit. This is normal in Dunedin winters — don't turn it off, as it will resume heating automatically once the ice has cleared.
Yes. Regular cleaning and maintenance helps efficiency, air quality and reliability, and keeps the warranty valid. In Dunedin, an annual clean before winter is sensible. If the unit smells, leaks or struggles to heat, get it checked rather than running it harder.
Editorial disclosure: TopChoice is an independent editorial platform. Some pages may include clearly labelled featured placements for additional visibility. Featured placements do not influence rankings within our Top 5 lists.
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