Heat pumps are one of the most efficient ways to heat a home, and in Whanganui, where Whanganui's mild, sometimes wet coastal climate and exposure to westerly weather off the Tasman, the right unit, correctly sized and installed, makes a real difference to comfort and power bills. Cold-climate performance and good placement are what separate a great install from an average one.
This page highlights the Top 5 heat pump installers in Whanganui, based on independent research into reputation, installation quality, servicing and reliability.

The top 5 heat pump installers in Whanganui are 1. RT Heat Pumps & Electrical, 2. Phillips Electrical, 3. Strong Electrical, 4. CME Services, 5. Trust Air HVAC. 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.
RT Heat Pumps & Electrical offer friendly, personal service for domestic and commercial heat pump solutions across Whanganui, with free quotes.
Whanganui-owned since 1991, Phillips Electrical are the leading Fujitsu accredited installers and the only locally based Heat Pump Group member, also covering air conditioning and electrical.
Strong Electrical are authorised suppliers, installers and service agents for Daikin and Mitsubishi Electric heat pumps in Whanganui, with 24/7 service.
CME Services offer heat pump installation, repairs and servicing in Whanganui, with free measure and quote on major brands including Mitsubishi, Gree and Toshiba.
Trust Air install Mitsubishi Electric, Fujitsu and Daikin heat pumps, including split, multi-split and ducted systems, across the Whanganui region.
A quick comparison of our Top 5 picks.
| Heat Pump Installer | Best for |
|---|---|
| RT Heat Pumps & Electrical | Heat pump supply and installation |
| Phillips Electrical | Accredited Fujitsu heat pumps |
| Strong Electrical | Daikin and Mitsubishi heat pumps |
| CME Services | Multi-brand heat pumps and servicing |
| Trust Air HVAC | Ducted and multi-split heat pumps |
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.
A heat pump is only as good as its sizing and installation. An undersized unit struggles in the cold, while poor placement wastes efficiency. In Whanganui, cool, damp winters make efficient heating and good moisture control worthwhile, so choose an installer who sizes the system to the room and recommends units rated for the conditions.
Ask about the brands they install, whether they handle the electrical work and consents, and what servicing they offer. A clear quote and a workmanship guarantee are both reasonable to expect.
Sizing depends on room volume, insulation, windows, aspect and how cold it gets. Whanganui's cool, damp winters mean units are sized to heat reliably and help manage moisture. A good installer will measure and size the unit properly rather than guessing, since an undersized heat pump will struggle on the coldest days.
Reliable brands installed and serviced by local Whanganui specialists are the sensible choice. Look for units with strong low-temperature heating output, and ask the installer which models they recommend and service locally so support is easy if you ever need it.
Cost depends on the unit, the type of system (high-wall, ducted or multi-room), and the complexity of the install and electrical work. Get an itemised quote that covers the unit, installation, any electrical work and GST, and ask what the warranty covers.
High-wall units are cost-effective for heating one space, while ducted systems heat the whole home discreetly but cost more. In Whanganui, whole-home heating is popular given the climate, so discuss your layout and budget with the installer.
Yes. Regular cleaning of filters and periodic professional servicing keep a heat pump efficient and extend its life, which matters when it runs hard through Whanganui winters. Many installers offer servicing plans.
Yes, most heat pumps both heat and cool, which is useful for warmer Whanganui summer days. If cooling matters to you, mention it so the installer recommends a unit and placement that does both well.
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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