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Best Solar Installers in Hamilton

We assessed 11 solar installers in Hamilton and ranked the top 5 on their public review record: rating quality, review volume and how recent the reviews are. The 10 listed below hold 450 Google reviews between them. No business can pay for a place in these rankings. Last updated 6 August 2026. How we rank →

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Before you hire

Solar panel quality and installer experience vary significantly. Ask for the payback period calculation based on your actual power bills, check whether they use tier-1 panels, and confirm what happens to your warranty if the installer goes out of business.

Top 5 Solar Installers in Hamilton

The top 5 solar installers in Hamilton are Harrisons Solar, 2E Electrical, Waikato Wide Electrical, CSR Electrical, and Eco Shine, ranked by Top5 score. Scroll for our take on each, plus what to ask before you hire.

  • 1

    Harrisons Solar - Waikato

    ★ 4.9 150 reviews +17 Top5 Score 170 +4
    5★ 146 4★ 2 1★ 2

    Harrisons Solar coordinates full residential solar installs covering panels, battery storage, and Tesla Powerwall systems, with a consultant visiting in person before any commitment is made. Their back-office team handles all paperwork and council compliance, so customers report the process feeling straightforward even when the system takes two stages or spans multiple years.

    Reviews most often describe: Homes wanting panels, battery and ongoing support

    • ✓ Consultant visits the site before quoting rather than pricing remotely
    • ✓ Office team manages all documentation and compliance paperwork for customers
    • ✓ Follow-up calls and support continue well after the system goes live
    map Map Is this your business?
  • 2

    2E Electrical

    ★ 4.9 142 reviews +2 Top5 Score 163
    5★ 129 4★ 9 3★ 2 2★ 1 1★ 1

    2E Electrical turns around electrical jobs quickly, with staff sending photos to remote or absent clients and coordinating directly with property managers when access is needed. Booking is handled by phone or email, and electricians arrive on time with the problem diagnosed and sorted in a single visit.

    Reviews most often describe: Clients needing fast response and clear communication

    • ✓ Sends photos to clients who cannot be on site themselves
    • ✓ Electricians arrive on time without needing follow-up calls
    • ✓ Responsive to urgent call-outs, on site within 15 to 20 minutes

    location_on 18F Perclo Place, St Andrews, Hamilton

    map Map Is this your business?
  • 3

    Waikato Wide Electrical - Solar Power Specialists

    ↑ 2
    ★ 4.9 38 reviews Top5 Score 147 +1
    5★ 36 3★ 1 2★ 1

    Waikato Wide Electrical gets solar arrays on roofs fast, often completing full installations in a single day, and Mike's willingness to share detailed knowledge about system sizing and expected output helps households commit with confidence. One customer tracked $3,385 in energy savings over 12 months and found the system performed exactly as predicted at quote stage.

    Reviews most often describe: Buyers wanting competitive pricing and proven savings

    • ✓ Installs completed within a single day on multiple jobs
    • ✓ Pricing came in lower than two or three competing quotes
    • ✓ Mike explains system specs and expected savings before any commitment

    location_on 1782 Te Pahu Road, Karamu

    map Map Is this your business?
  • 4

    CSR Electrical

    ↑ 2
    ★ 4.9 32 reviews +2 Top5 Score 143 +1
    5★ 31 2★ 1

    CSR Electrical walks clients through multiple system design iterations before any work begins, covering panel selection, battery options, and system sizing to match actual household needs. When something goes wrong on site, like a ceiling damaged during installation, they organise the repair without being pushed to do so, and stay after hours if commissioning a large inverter and battery setup needs it.

    Reviews most often describe: Households wanting thorough pre-install guidance and tidy execution

    • ✓ Installer walks customers through system design options before committing
    • ✓ Post-install handover includes a run-through of monitoring apps
    • ✓ Transparent itemised quotes with no hidden costs or bundled pricing

    location_on 22 Gilbek Place, Te Rapa, Hamilton

    map Map Is this your business?
  • 5

    Eco Shine Solar Panel Cleaning - Hamilton

    ↑ 2
    ★ 5.0 21 reviews +1 Top5 Score 142 +3
    5★ 21

    Eco Shine cleans solar panels, installs bird netting, and carries out system condition checks that generic cleaning companies cannot provide. After every visit, they send before-and-after photos and a written report so owners can see exactly what condition their panels are in and whether generation is being affected.

    Reviews most often describe: Solar owners wanting maintenance, cleaning and bird proofing

    • ✓ Before and after photos plus written report sent after every clean
    • ✓ Proactive contact when an earlier booking slot opens up
    • ✓ Arrival time updates given on the day of the job
    map Map Is this your business?

Before you hire a solar installer in Hamilton

Drawn from 125 customer reviews collected for this page. The first answer is what it costs.

What does a solar installation typically cost in New Zealand? expand_more

A standard 5kW to 6.6kW residential solar system costs between $10,000 and $14,000 installed, covering panels, inverter, and labour. Larger systems up to 10kW can reach $18,000 to $20,000 depending on roof complexity and inverter brand. Adding battery storage, such as a Tesla Powerwall 3, typically adds $10,000 to $14,000 on top of the base system cost. There is no government rebate scheme in New Zealand as of 2025, so the full cost comes out of pocket or through financing.

Full solar installation cost guide, with sources

How do I check if a solar installer is properly accredited? expand_more

Every installer connecting a solar system to the grid must hold a current Registered Electrician licence, which you can verify through the publicly searchable EWRB register at ewrb.govt.nz before signing anything. Ask the installer directly for their EWRB registration number and look it up yourself rather than taking their word for it. SEANZ membership and SolarCert certification are voluntary but meaningful extras, as they signal specialist solar knowledge beyond the basic electrician licence and help with grid connection approvals from your local lines company. An installer who holds EWRB registration alongside a recognised credential like SolarCert gives you a stronger basis for confidence in both workmanship and compliance.

How accurate are the payback period and savings estimates I'm being given? expand_more

A realistic payback period for a residential solar system in New Zealand sits between 8 and 12 years, but that figure shifts significantly based on how much of your solar generation you actually use yourself. Export buy-back rates from retailers currently sit around 8 to 17 cents per kWh, while you pay 28 to 35 cents to import power, so the savings estimates given to you by an installer should be based on your self-consumption pattern, not a generic household average. Ask the installer to show you the assumed export percentage and self-consumption rate in their model, and check whether the estimate accounts for your actual daily routine. Adding battery storage can push payback beyond 15 years, so battery decisions deserve separate scrutiny of the numbers.

What are the warning signs of a solar installer you shouldn't hire? expand_more
  • –Billing practices that lack transparency, such as invoices with no itemised breakdown of labour or additional workers, are a clear signal to probe further before agreeing to terms.
  • –An installer who fails to call when running late, or goes silent when you try to reach them during a problem, points to support failures that will frustrate you post-installation.
  • –Site constraints, such as difficult roof access or proximity to the meter, should be identified at the quoting stage, not revealed as surprises on installation day.
  • –A salesperson who makes a strong impression but hands off to an installation crew with noticeably lower standards is a pattern worth watching for.
  • –Scope gaps, such as a contract that turns out not to cover the full area discussed, suggest the agreement was not documented carefully enough before work began.
  • –Vague or unconfirmed timelines at the quoting stage often translate into disorganised scheduling and disruption on the day of installation.
What should you ask before hiring a solar installer? expand_more
  • –Ask for the installer's EWRB registration number and whether they hold SEANZ membership or SolarCert certification, then verify the EWRB number yourself at ewrb.govt.nz.
  • –Ask what self-consumption rate and export buy-back rate the savings estimate is based on, and whether it reflects your household's actual usage pattern and daily schedule.
  • –Confirm whether a system walkthrough and app setup are included after installation, since understanding how to monitor your system affects how well you can manage your power use.
  • –Ask who handles warranty claims after installation, specifically whether it is the installer or the product manufacturer, and what the response time commitment is.
  • –Get clarity on two separate warranties: the workmanship warranty covering the installation itself, and the component warranties covering panels, inverter, and battery.
  • –Ask whether the installer will help you identify the best power plan and buy-back rate from retailers once the system is live, as some do this as part of their aftercare.

Solar Installers ranked 6 to 10 in Hamilton

They scored below the top 5 on the same public review record.

  • 6

    MV Solar & Electrical

    ↑ 2
    ★ 5.0 24 reviews +4 Top5 Score 141 +2
    5★ 24

    MV Solar & Electrical installs residential solar systems, including 13kW arrays and 20-panel setups, with multiple customers returning for further electrical work after their solar install. Matt leads a named crew including Luke and Jack, who show up on agreed dates, communicate clearly through the job, and price the work fairly.

    Reviews most often describe: Repeat clients wanting trustworthy solar and electrical work

    • ✓ Crew members named and known to clients across multiple visits
    • ✓ Arrives on time and completes work on the agreed schedule
    • ✓ Customers return for additional electrical work after solar install

    location_on 39 Forsyth Street, St Andrews, Hamilton

    map Map Is this your business?
  • 7

    EFS Solar

    ★ 4.9 14 reviews Top5 Score 135
    5★ 12 4★ 2

    EFS Solar steers clients away from oversized systems, sizing installations around actual usage goals rather than upselling capacity that won't pay off. Hamish and the wider team carry customers through every stage, from initial call to post-install app setup, with multiple touchpoints so nothing gets handed off without explanation.

    Reviews most often describe: Households wanting honest sizing advice and full support

    • ✓ Sales team actively advises against buying more than you need
    • ✓ Installs completed within three hours with minimal disruption
    • ✓ Post-install support from named contact Hamish available ongoing

    location_on 35 Clem Newby Road, Burbush, Hamilton

    map Map Is this your business?
  • 8

    Go Green Solar & Electrical LTD.

    ↑ 1
    ★ 5.0 11 reviews Top5 Score 131
    5★ 11

    Go Green Solar installs panels, inverters, battery systems including Tesla Powerwall, and heat pump hot water cylinders, with Radek personally visiting before quoting and handling the installation himself. He checks which power company and tariff will suit your setup after the job is done, and has navigated pushback from local power companies to deliver systems at higher spec than originally quoted.

    Reviews most often describe: Clients wanting hands-on advice, install, and aftercare

    • ✓ Radek visits in person to assess needs before quoting
    • ✓ Post-install follow-up includes power company and tariff advice
    • ✓ Systems delivered on agreed day, budget, and specified scope

    location_on 128D Otonga Valley Road, Waikato, Raglan

    map Map Is this your business?
  • 9

    Ecosmart New Zealand Limited

    ↑ 1
    ★ 4.7 10 reviews Top5 Score 127
    5★ 9 2★ 1

    Ecosmart installs grid-tied and battery-backed solar systems across the country, including large multi-stage setups combining panels, battery banks, and inverters sized to cover pools, hot water, and whole-household loads. Daryn personally handles the metering changes, grid export arrangements, and app setup, so clients in rural areas with frequent outages can run independently without managing the paperwork themselves.

    Reviews most often describe: Rural and off-grid homes needing battery independence

    • ✓ Installations completed on time and sites left clean every time
    • ✓ Battery systems sized to carry households through overnight and outages
    • ✓ App monitoring set up so clients can track usage remotely after install

    location_on 8 Hounsell Road, Burbush, Hamilton

    map Map Is this your business?
  • 10

    Lightforce Solar - Waikato

    ★ 4.5 8 reviews Top5 Score 125
    5★ 7 1★ 1

    Lightforce Solar takes on substantial residential installs, including triple-phase 39-panel arrays paired with Sigenergy battery storage, and completes smaller 5kW garage roof systems in a single day. Customers who compared multiple quotes found them the strongest on value, and fitters leave sites spotless with no tidying up left to the homeowner.

    Reviews most often describe: Larger systems where competitive pricing and clean execution matter

    • ✓ Installs completed in a single day on smaller residential systems
    • ✓ Competitive pricing confirmed by customers who got multiple quotes
    • ✓ Staff answer detailed technical questions directly during the sales process

    location_on 436A State Highway 26, Newstead

    map Map Is this your business?

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About this ranking

How are the top solar installers in Hamilton chosen? expand_more

We build this page from Google Maps results for solar 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. See how we rank for the full method.

How often are rankings updated? expand_more

Every category and city is recrawled on a rolling cycle, about once a month. This page was last checked on 6 August 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. Verifying a business is free. A subscription adds a website link on the card, a public profile page, and competitor and ranking history in the owner's dashboard, none of which affects ranking position. See what a subscription includes.

Why isn't my business listed? expand_more

We build this page from Google Maps results for solar 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. At the last update, the smallest review count among the 10 businesses listed here was 8. Check where you rank or read how rankings work.