Stop Searching. Start Choosing.
Top5.nz

Best Heat Pump Installers in Dunedin

We assessed 14 heat pump installers in Dunedin and ranked the top 5 on their public review record: rating quality, review volume, and how recent the reviews are. How we rank →

Last updated: 1 Jul 2026

lightbulb

Before you hire

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 Dunedin

The five highest-scoring businesses from 14 analysed. Ranked on independent signals only. Scroll for our take on each, plus what to ask before you hire.

  • 1

    Davies Heat & Cool

    ★ 4.8 365 reviews +19 Top5 Score 181 +2
    5★ 324 4★ 31 3★ 5 2★ 2 1★ 3

    Davies Heat & Cool handles installation from quote to handover without surprises, with crews solving problems on-site rather than returning later. Installers clean and tidy up after themselves, leaving homes in better condition than they found them.

    Reviews most often describe: Straightforward heat pump installs where you want minimal hassle

    • ✓ Solves install complications without callbacks
    • ✓ Cleans roof-mounted units and indoor components
    • ✓ Long-term clients return for repeat work

    location_on 1 Donald Street, Kenmure, Dunedin

    map Map Is this your business?
  • 2

    NJ Electrical and Hvac services limited

    ★ 5.0 67 reviews +5 Top5 Score 160 +2
    5★ 66 4★ 1

    One reviewer explicitly states they're engaging this team for a heat pump install based on positive electrical work, suggesting capability in that space. Nicky communicates pricing upfront, adjusts his schedule to meet timelines, and his team works extended hours to complete jobs thoroughly rather than cutting corners.

    Reviews most often describe: Dunedin homeowners wanting heat pump install with skilled electrician oversight

    • ✓ On-the-spot estimates and upfront pricing
    • ✓ Adjusts schedule to meet customer deadlines
    • ✓ Works into evening to finish jobs fully

    location_on 10 Bellevue Place, Port Chalmers, Dunedin

    map Map Is this your business?
  • 3

    HeatCo Ltd

    ★ 4.9 90 reviews +5 Top5 Score 156 +1
    5★ 87 3★ 1 2★ 1 1★ 1

    Stefan's team takes time to understand your space and needs rather than upselling extra units you don't require, which several customers specifically valued during the quote stage. Installation crews work quickly and leave sites neat, with Stefan staying communicative throughout and available for follow-up questions after handover.

    Reviews most often describe: Homeowners replacing aging heat pumps who want honest advice

    • ✓ Declines unnecessary second heat pump installations
    • ✓ Installation completed within days of approval
    • ✓ Stefan available for post-installation support calls

    location_on 92 Gordon Road, Mosgiel, Dunedin

    map Map Is this your business?
  • 4

    FeaturEnergy Limited Heat Pumps Dunedin

    ★ 4.9 78 reviews +8 Top5 Score 155
    5★ 76 4★ 1 1★ 1

    Hire them if you need someone to compare your options against competitor quotes and steer you away from oversized or overpriced units. Tabreez conducts a site assessment with a qualified tradesperson before quoting, so you get sizing advice before installation begins.

    Reviews most often describe: Homeowners choosing between heat pump models and sizing options

    • ✓ Compares quotes from rival installers
    • ✓ Brings plumber to initial inspection
    • ✓ Explains operation and app setup post-install

    location_on 4 Cockerell Street, Brockville, Dunedin

    map Map Is this your business?
  • 5

    McClelland Heat Pumps & Refrigeration Ltd

    ★ 4.7 53 reviews Top5 Score 148 +5
    5★ 48 4★ 1 1★ 4

    If you need a heat pump installed quickly without delays, this business keeps Fujitsu units in stock and completes jobs within days rather than months. Quote turnarounds happen within hours, and installers work around difficult locations without creating mess or requiring follow-up visits.

    Reviews most often describe: Urgent heat pump installations and same-day replacements

    • ✓ Stock heat pumps for fast installation
    • ✓ Quote callback within one hour
    • ✓ Tidy installations in tight spaces

    location_on 137 Main South Road, Green Island, Dunedin

    map Map Is this your business?

Before you hire a heat pump installer in Dunedin

Common themes, pricing patterns, and watch-outs drawn from customer reviews and independent research.

What does heat pump installation typically cost in New Zealand? expand_more

A standard single split-system heat pump, supply and installation combined, runs between $2,000 and $4,500 for a single 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 cost more again, with some Dunedin reviewers noting the investment pays back through lower power bills and whole-home comfort. The Warmer Kiwi Homes programme, administered by the Energy Efficiency and Conservation Authority (EECA), offers subsidies of up to 80% for eligible low-income homeowners, so check that before accepting any quote.

Full heat pump installation cost guide, with sources

How do I know if a heat pump installer is qualified and certified? expand_more

The most important check 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 of which you can verify on the EWRB public register. Ask the installer for their registration number before you commit, because some Dunedin operators use a separate electrician for this work and you should confirm that person is registered too. On refrigerant handling, there is no government occupational licence for refrigeration and air conditioning technicians in New Zealand, so ask what industry certification the technician holds, as competence credentials are managed through the industry-backed Refrigerant Licence Trust Board rather than a statutory register. Also ask which brands the installer is authorised to fit, because manufacturer accreditation is separate from any registration and directly affects whether your warranty is valid.

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 square meterage, ceiling height, insulation, window area, and Dunedin's colder South Island climate, rather than relying on a rough guess at the time of quoting. As a starting point, expect around 100 to 125 watts of heating capacity per square metre, meaning a 20 to 30 square metre bedroom suits a 3 kW unit while a 50 to 70 square metre open-plan living area needs 5 to 7 kW, sized toward the higher end in Otago. One Dunedin reviewer learned the hard way that being sold an undersized unit meant the heat pump ran constantly and failed to heat the space adequately, with the cost of labour making the upgrade expensive, so push any installer to show their sizing calculation before you sign off on a unit.

What are the warning signs of a heat pump installer you shouldn't hire? expand_more
  • –An installer who cannot or will not provide their Electrical Workers Registration Board registration number before starting work is a red flag, as that registration is legally required for mains connection work.
  • –Vague or evasive answers about what refrigerant handling qualification their technician holds suggest they may not have the industry certification expected by equipment wholesalers.
  • –Poor follow-up after installation, including unanswered calls over multiple days or weeks, has appeared in Dunedin reviews and is a sign of how warranty or fault issues will be handled later.
  • –An installer who recommends a unit size without visiting your home or measuring your rooms is skipping the heat load assessment that proper sizing requires.
  • –Watch for installers who do not disclose upfront that a slightly larger unit costs only a little more in labour, leaving you locked into an underpowered system.
  • –Repeated return visits that fail to diagnose a fault, followed by blaming the house wiring without sending a registered electrician to confirm it, points to inadequate technical follow-through.
What should you ask before hiring a heat pump installer? expand_more
  • –Ask for their Electrical Workers Registration Board registration number and check it on the EWRB public register before agreeing to anything.
  • –Ask what refrigerant handling qualification the technician holds, as this is an industry credential rather than a government licence, and a credible installer will answer without hesitation.
  • –Ask which brands they are authorised to install, because fitting a unit outside the manufacturer's accredited installer network can void the product warranty.
  • –If you are applying for a Warmer Kiwi Homes subsidy through the Energy Efficiency and Conservation Authority (EECA), confirm the installer is accredited under that programme before proceeding.
  • –Ask how they determine the right unit size and request a written heat load calculation, not just a rough kilowatt estimate based on a glance at the room.
  • –Confirm exactly what the quoted price includes: indoor unit, outdoor unit, all pipework, electrical connection, a test run, and any consent or compliance costs, so there are no surprises on the invoice.

More top heat pump installers in Dunedin

The next five highest-scoring heat pump installers in Dunedin. Worth considering if your first choices aren't available.

  • 6

    HRV Otago Southland

    ↑ 1
    ★ 4.5 63 reviews Top5 Score 145 +4
    5★ 49 4★ 4 3★ 4 2★ 2 1★ 4

    Installers excel at explaining system options upfront and executing smooth single-visit installations that clients notice working overnight. One reviewer experienced inconsistent service across jobs, with a second visit involving oversold products and installation against stated preferences.

    Reviews most often describe: Homeowners replacing wall units or wanting underfloor vented systems

    • ✓ Explains system options before commitment
    • ✓ Single-installer jobs completed in hours
    • ✓ Inconsistent follow-up service between visits

    location_on 15 Saint Albans Street, Bradford, Dunedin

    map Map Is this your business?
  • 7

    Otago Heating and Ventilation

    ↓ 1
    ★ 5.0 27 reviews Top5 Score 142
    5★ 27

    Josh handles initial site visits with attention to practical problems, then delivers quotes with multiple options before installation. He arrives on time and finishes quickly while keeping worksites tidy and minimising disruption to your day.

    Reviews most often describe: Homeowners wanting multiple heat pump installs with clear advice

    • ✓ Offers multiple install options at quote stage
    • ✓ Arrives and completes on schedule
    • ✓ Cleans up thoroughly after installation

    location_on 60 Factory Road, Mosgiel, Dunedin

    map Map Is this your business?
  • 8

    Future Energy Dunedin

    ★ 4.8 26 reviews +2 Top5 Score 140 +2
    5★ 23 4★ 2 1★ 1

    Hire them if you want a heat pump installed to a standard that building inspectors explicitly praise, with tradespeople who finish on schedule. They maintain contact after installation rather than disappearing once the job is done.

    Reviews most often describe: Homeowners wanting ducted heat pumps installed quickly with follow-up support

    • ✓ Completed installations within 2-3 weeks of quote
    • ✓ Inspector noted installation quality as exceptional
    • ✓ Offered follow-up support years after install

    location_on 329 Kaikorai Valley Road, Bradford, Dunedin

    map Map Is this your business?
  • 9

    Otago Air Conditioning - Dunedin's heat pump specialists

    ★ 5.0 11 reviews Top5 Score 130 +1
    5★ 11

    Leon guides customers through heat pump choice based on their home's needs rather than pushing a single option, then installs to schedule without callbacks. Multiple clients have used him across two or more separate jobs, suggesting his fixes hold up long-term.

    Reviews most often describe: Homeowners wanting system selection advice plus reliable installation

    • ✓ Helps choose right system size and type
    • ✓ Completes on promised date
    • ✓ Keeps progress updates during install

    location_on 313 Green Island Bush Road, Blackhead, Dunedin

    map Map Is this your business?
  • 10

    Warm and Cool

    ★ 4.1 27 reviews Top5 Score 129
    5★ 18 4★ 2 3★ 2 2★ 2 1★ 3

    Warm and Cool adapts quickly to on-site changes and completes tight timelines without cutting corners on difficult builds. Ross provides ongoing after-sales troubleshooting and support for systems with intricacies that require depth of experience to dial in properly.

    Reviews most often describe: Complex multi-level homes and tricky retrofit installations

    • ✓ Handles location changes mid-installation without delay
    • ✓ Troubleshoots complex system issues months or years later
    • ✓ Serves Central Otago clients from Dunedin base

    location_on 223 Kaikorai Valley Road, Bradford, Dunedin

    map Map Is this your business?

Related Dunedin rankings

architecture Architects construction Builders electrical_services Electricians plumbing Plumbers roofing Roofers solar_power Solar Installers format_paint House Painters bathroom Bathroom Renovators kitchen Kitchen Renovators foundation Concrete & Driveway Contractors fence Deck & Fence Builders All Dunedin rankings arrow_forward

About this ranking

How are Dunedin's top Heat Pump Installers chosen? expand_more

We assess every Heat Pump Installers business in Dunedin against public ratings and review data using a consistent, published method. See how we rank for the full methodology. Top 5 and Also Recommended positions are merit-based and cannot be purchased. At the last update, scores in the top 5 ranged from 148 to 181 points.

How often are rankings updated? expand_more

Rankings are refreshed regularly. This list was last updated in 1 July 2026.

Can a business pay to appear in this list? expand_more

No. Top 5 and Also Recommended positions are merit-only and cannot be purchased. Verified businesses may be able to update their listing details in future, but this will never affect ranking positions.

Why isn't my Heat Pump Installers business listed? expand_more

We pull from local search results for each category and city. If you're missing, the most common reasons are an incorrect Google Business category or too few recent reviews. At the last update, the lowest-ranked business in the top 10 had 11 reviews. Check where you rank or read how rankings work.