Best Heat Pump Installers in Hamilton
We assessed 46 heat pump installers in Hamilton and ranked the top 5 on public rating quality, review volume and how recent the reviews are. The businesses listed below hold 1,723 Google reviews between them. No business can pay for a place in these rankings. Last updated 30 September 2026. How we rank →
Before you hire
Heat pump specialists range from installers of single high-wall units to ducted systems, and most also service existing units. Connecting a heat pump to mains power is prescribed electrical work, so confirm your installer is listed on the Electrical Workers Registration Board register before booking. Refrigerant handling is covered by industry certification rather than a government licence, so ask what qualification the technician holds. Ask installers which brands they are authorised to install, what the manufacturer warranty covers, and what the running cost estimate is for your space.
Top 5 Heat Pump Installers in Hamilton
The top 5 heat pump installers in Hamilton are #1 Goldstar Heat Pumps, #2 Superheat, #3 Enlighten Electrical, #4 Oxygen Air, and #5 2E Electrical, ranked by Top5 score. Scroll for our take on each, plus what to ask before you hire.
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1
Goldstar Heat Pumps
★ 4.9 501 reviews +17 Top5 Score 189 +15★ 471 4★ 23 3★ 3 1★ 4Goldstar Heat Pumps covers single-room wall units, multi-unit installs, ducted underfloor systems, and aircon replacements, with staff like Andrea scoping the job thoroughly by phone before anyone comes out. Installers like Dekota walk customers through how to use the system before leaving, and where initial installation issues arise, the team returns to resolve them until the outcome is right.
location_on 18b Haig Street, Frankton, Hamilton
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2
Superheat Electrical and Air-Conditioning
★ 5.0 129 reviews +6 Top5 Score 1685★ 129Superheat coordinates split-system wall units, multi-head installations, and ducted Mitsubishi systems, with the admin team scoping options and tailoring quotes before any work begins. On the day, crews tackle genuinely difficult jobs like plaster walls and awkward cable runs, then follow up after completion to confirm everything is running well.
location_on 38C Pukete Road, St Andrews, Hamilton
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3
Enlighten Electrical
★ 5.0 147 reviews Top5 Score 1655★ 143 4★ 4Enlighten Electrical fits homeowners wanting EV charger installs, workshop wiring, downlights, and fuse box upgrades handled by a team that keeps clients informed throughout the job. Lance and crew are noted for explaining what they are doing as they go, leaving sites clean and tidy, and responding quickly to follow-up questions after the work is done.
location_on 177d Morrinsville Road, Newstead, Hamilton
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4
Oxygen Air
↓ 1★ 4.6 199 reviews +2 Top5 Score 162 +15★ 166 4★ 18 3★ 3 2★ 1 1★ 11Oxygen Air gets multi-room ducted systems and large multi-unit heat pump jobs finished in a single day, with quotes that walk through several options at different price points rather than pushing one direction. Sales staff like Nathan and Bevan are noted for giving honest, pressure-free advice, and install crews regularly stay behind to test airflow, adjust settings, and explain controls before leaving.
location_on Unit B/77 Tasman Road, Te Rapa, Hamilton
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5
2E Electrical
★ 4.9 142 reviews Top5 Score 1625★ 129 4★ 9 3★ 2 2★ 1 1★ 12E Electrical suits property owners who can't be on site, sending photos of heat pump issues discovered during routine servicing and coordinating directly with property managers for access. Rachael and the admin team handle booking and communication end to end, so the job is arranged by phone or email without the owner needing to be present.
location_on 18F Perclo Place, St Andrews, Hamilton
Before you hire a heat pump installer in Hamilton
Drawn from 221 customer reviews collected for this page. The first answer is what it costs.
What does heat pump installation typically cost in New Zealand? expand_more
Supply and installation for a single split-system unit runs from $2,000 to $4,500 for a standard room or living area. Multi-head systems covering several rooms range from $5,000 to $12,000 or more depending on the number of indoor units.
Ducted systems, which several Hamilton installers have fitted according to reviews, sit at the higher end and can exceed $20,000 for a whole-home setup. Always confirm the quote covers the indoor unit, outdoor unit, pipework, electrical connection, and a test run.
How do I know if a heat pump installer is qualified and certified? expand_more
The statutory requirement to check first is electrical: connecting a heat pump to mains power is prescribed electrical work under the Electricity Act 1992, so the person doing it must be registered with the Electrical Workers Registration Board (EWRB) and hold a current annual practising licence, both verifiable on the EWRB public register. Ask the installer for their EWRB registration number before signing anything, then look it up yourself.
On refrigerant handling, there is no government occupational licence for air conditioning technicians in New Zealand, so ask what industry certification the technician holds through the Refrigerant Licence Trust Board, which is the recognised trade credential in this field. Manufacturer accreditation is a separate and practical concern: fitting a unit outside the brand's authorised installer network can void the product warranty, so confirm the installer is authorised for the brand they are quoting you.
How do I know if the heat pump I'm being sold is the right size for my room? expand_more
A legitimate sizing assessment accounts for your room's floor area, ceiling height, insulation quality, window area, and your location's climate, not just a rough rule of thumb, though a starting point of 100 to 125 watts per square metre of living space is a common industry guide. One Hamilton installer reviewed here was praised for advising a customer to go with a larger unit for occasional-use heating, showing that usage patterns matter alongside room dimensions. Undersizing leaves a unit running flat-out without reaching target temperatures in winter, while oversizing causes short cycling and poor humidity control, so push back if a salesperson cannot explain the calculation behind their recommendation.
What are the warning signs of a heat pump installer you shouldn't hire? expand_more
- –Cannot or will not provide an Electrical Workers Registration Board registration number when asked directly.
- –Vague about what refrigerant handling industry certification their technician holds, or dismisses the question entirely.
- –Salesperson quotes a placement for the unit that the install team then changes on the day without prior discussion, a pattern seen in more than one Hamilton review.
- –Installation leaves structural or cosmetic damage, such as gib dust, roof timber cut without disclosure, or dirty boots on carpet, with no plan to remedy it.
- –After-sales communication drops off sharply once payment is made, including unreturned calls, ignored complaint emails, and fault repairs left unresolved for months.
- –Repeated no-shows or last-minute cancellations on booking day, with no proactive contact to the customer.
What should you ask before hiring a heat pump installer? expand_more
- –What is your Electrical Workers Registration Board registration number, and can I verify your current practising licence on the EWRB public register?
- –What industry certification does your refrigeration technician hold for handling refrigerants, and through which body was it issued?
- –Which brands are you authorised to install, and will fitting this unit preserve the full manufacturer warranty?
- –Are you accredited under the Warmer Kiwi Homes programme run by EECA (Energy Efficiency and Conservation Authority), and can you help me check whether I qualify for a subsidy?
- –How have you calculated the right kilowatt capacity for my room, and what factors such as insulation, ceiling height, and window area have you accounted for?
- –Does this quote include the indoor unit, outdoor unit, all pipework, electrical connection, a post-installation test run, and site cleanup, or are any of those charged separately?
Also recommended heat pump installers in Hamilton
Ranked 6 to 10 on the same public review record.
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6
Eastside Refrigeration Ltd
↓ 2★ 4.6 97 reviews +13 Top5 Score 162 +15★ 83 4★ 4 3★ 4 1★ 6Eastside Refrigeration covers new heat pump installation, annual servicing, and keeping older units running well past the decade mark. Their admin team proactively contacts clients when servicing is due, and technicians routinely explain maintenance tips and optimal use settings on the day rather than leaving that to the customer to figure out.
location_on 29 Gilchrist Street, Avalon, Hamilton
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7
Connect Electrical 2015 Ltd
★ 4.9 133 reviews Top5 Score 1625★ 126 4★ 4 3★ 2 2★ 1Connect Electrical recently completed a two-day ducted heat pump installation using a three-person crew who handled all rubbish removal and left the site clean on completion. Dan coordinates quotes quickly, often visiting the site within a day of the initial request, and the team keeps clients updated through to installation without needing to be chased.
location_on 1/129 Ingram Road, Hamilton
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8
X Electrical - Electrician Hamilton
★ 5.0 112 reviews Top5 Score 1615★ 110 4★ 2X Electrical turns around heat pump installations quickly, with crews noted for arriving promptly, completing work in a single visit, and leaving the site clean. Jaxon and the team communicate clearly about how the job will proceed beforehand, and go out of their way to make sure clients are comfortable with the outcome before leaving.
location_on 47 Fuchsia Lane, Hamilton
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9
Alectrics Electrical | Electrician Hamilton
★ 5.0 81 reviews Top5 Score 1575★ 80 4★ 1Alectrics completes heat pump installations from first contact to finished job within a week, with quotes provided promptly and pricing that matches the final invoice. Hugo visits the site beforehand to scope requirements, and the install crew follows through with tidy workmanship and clear communication throughout, so clients are not chasing updates or dealing with surprises on the day.
location_on 3B Newton Place, Frankton, Hamilton
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10
HRV Waikato
↓ 4★ 4.1 182 reviews +1 Top5 Score 1555★ 123 4★ 17 3★ 8 2★ 7 1★ 27HRV Waikato installs combined heat pump and home ventilation systems, with installation crews like Brijesh and Will testing the system on completion and keeping customers updated throughout the job. Where communication breaks down, the team has shown willingness to reach out, apologise, and re-engage to get things back on track.
location_on 13 Kahu Crescent, Te Rapa Park, Hamilton
About this ranking
What the 10 heat pump installers listed above hold, at the 30 September 2026 check.
We first assessed heat pump installers in Hamilton in March 2026 and have rechecked the ranking five times since. Goldstar Heat Pumps has held first place at every check, and Superheat and Oxygen Air have been in the top 5 alongside it throughout. Across the 14 locations we assess heat pump installers in, the 140 businesses listed have a median rating of 4.9, and one-star reviews are 2.1% of their total.
What has changed since March 2026? expand_more
- Sep 2026
Scoring method updated. Enlighten Electrical entered the top 5 at #3. 2E Electrical entered the top 5 at #5. Eastside Refrigeration left the top 5, down to #6. Connect Electrical, X Electrical and Alectrics entered the list.
- Aug 2026
- Jul 2026
Scoring method updated. Eastside Refrigeration entered the top 5, up from #10. HRV Waikato entered the list at #6.
- May 2026
Eastside Refrigeration entered the list at #10.
- Apr 2026
- Mar 2026
First check. Goldstar Heat Pumps #1.
How are the top heat pump installers in Hamilton chosen? expand_more
We build this page from Google Maps results for heat pump installers in Hamilton. Each one is scored on its public rating and review record. Businesses outside the area, or whose reviews describe a different line of work, are left out, and a business whose main Google category is a different trade is held back until a person has checked what it does. A business whose website no longer resolves and that has had no Google review for six months is treated as dormant and left off the page until either changes. Every category and city is rechecked on a rolling cycle, about every two to three months. A location with a subscribing business is rechecked every month, and the whole page updates with it. See how we rank for the full method.
What does a business subscription offer? expand_more
No business can pay for a place in these rankings. Claiming and verifying a listing is free. It adds a phone number to the card and a small trust bonus (+3 points) to its score, for confirming a real operator stands behind the listing. The owner also gets a dashboard showing how their score is made up. A paid subscription provides an enhanced card with more ways to reach the business, including a website link and a detailed profile page. It also refreshes this page monthly and adds ranking history and competitor analysis to the owner's dashboard. The subscription adds nothing to the score. Claim your listing or see what a subscription includes.
Why isn't my business listed? expand_more
We build this page from Google Maps results for heat pump installers in Hamilton. The usual reasons for missing out are a Google Business category that does not match, too few reviews to score near the top, or an address outside the area we cover. Sometimes we miss a business that should be here. Check where you rank first. If you are not there and think you should be, get in touch.