Best Solar Installers in Castle Hill
Compare the top solar installers in Castle Hill, NSW, ranked by our composite reputation score.
Updated October 2026 · Based on 2,679 real Google reviews across the 41 solar installers
Top Solar Installers in Castle Hill, NSW
The short answer
As of October 2026, the 3 highest-ranked solar installers in Castle Hill, NSW on the Starworks directory are iSpark Electrical - Lucky Solar (5.0 stars from 273 Google reviews), Hills Solar (5.0 stars from 213 Google reviews) and Hills Natural Solar (5.0 stars from 116 Google reviews).
Starworks ranks 41 solar installers in Castle Hill, NSW, holding 2,679 Google reviews between them. Across the 41 the median rating is 5.0 stars from a median of 41 reviews. Of the 41, 37 are rated 4.5 or better and 10 have passed 100 reviews.
Every figure here is computed from Google review data that Starworks collects for solar installers in Castle Hill, NSW, recalculated when this page rebuilds. Placement on this list cannot be bought.
Bangar Energy - Solar Panels & Battery Storage system Installers
Read 96 reviews · Score: 81/100
POWERGRID SOLAR
Read 77 reviews · Score: 75/100
Sunday Solar
Read 44 reviews · Score: 46/100
Utility Solar- Renewable Energy at Your Doorstep
Read 12 reviews · Score: 21/100
SunSolar Energy Pty Ltd - Solar Installation Company Norwest NSW
Read 8 reviews · Score: 8/100
What customers wrote about solar installers in Castle Hill
Real Google reviews of businesses ranked on this page. Reviewer names are never shown.
“Philip from the sales team was great he was upfront about the cost to add more panels and a battery to my exciting solar system also the upgrade to my switch board. I wasn't home on the day the panels were installed but…”
“I recently had solar panels installed by AHE GROUP and I’m happy with the entire experience. Andrew and his team were professional, knowledgeable, and efficient from start to finish. They explained the process clearly…”
“We would like to express our heartfelt gratitude to Jason, Datta, and the entire team for their incredible work on our solar installation. From the very beginning to the final installation, they were kind, supportive…”
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Frequently Asked Questions
Common questions about solar installers in Castle Hill.
Who are the best solar installers in Castle Hill?
As of October 2026, the 3 highest-ranked solar installers in Castle Hill, NSW on the Starworks directory are iSpark Electrical - Lucky Solar (5.0 stars from 273 Google reviews), Hills Solar (5.0 stars from 213 Google reviews) and Hills Natural Solar (5.0 stars from 116 Google reviews). Every figure here is computed from Google review data that Starworks collects for solar installers in Castle Hill, NSW, recalculated when this page rebuilds. Placement on this list cannot be bought.
How many solar installers does Starworks rank in Castle Hill?
Starworks ranks 41 solar installers in Castle Hill, NSW, holding 2,679 Google reviews between them. Across the 41 the median rating is 5.0 stars from a median of 41 reviews. Of the 41, 37 are rated 4.5 or better and 10 have passed 100 reviews.
What star rating should I expect from a good solar installer in Castle Hill?
The median Google rating across the 41 solar installers Starworks ranks in Castle Hill, NSW is 5.0 stars, and 37 of them sit at 4.5 or above. A rating at or near that median is ordinary for solar installers in Castle Hill, NSW rather than a warning sign on its own, and a rating well above it only means much when enough reviews stand behind it.
How many Google reviews does an established solar installer in Castle Hill have?
The median solar installer Starworks ranks in Castle Hill, NSW carries 41 Google reviews, and 10 of the 41 solar installers have passed 100.
How does Starworks rank solar installers in Castle Hill?
Starworks gives every solar installer in Castle Hill, NSW a reputation score out of 100 from three things: its Google star rating (up to 47 points), how many reviews back that rating (up to 35), and whether customers can reach it by website and phone number (up to 18). Review volume is the one part that can subtract: below 15 reviews it costs points, because a near-empty review record gives a stranger very little to go on. No score falls below 0 and placement cannot be bought. The score measures the strength of a business's public review record rather than the quality of its work, so it is worth reading the reviews as well, and every listing links to them on Google.
Why does a solar installer in Castle Hill with all 5-star reviews score lower than one with a lower rating?
Because review volume counts as well as rating, and below 15 reviews it counts against you. Five perfect reviews are encouraging but thin evidence; three hundred reviews averaging 4.7 tell a stranger far more about what to expect on the day. That is a judgement about how much proof exists, not about the quality of the work, and a newer solar installer with a handful of excellent reviews may still be the right choice in Castle Hill, NSW. The star rating and review count sit next to every score so you can weigh both yourself.
Why does the same solar installer not appear several times on this list?
Some businesses run more than one Google listing, often one per suburb they service. Those are the same company, so Starworks groups them and shows the business once, using the listing with the strongest review record. That is why this page opens with 41 distinct solar installers in Castle Hill, NSW rather than a longer list of repeats.
How often is this list of solar installers in Castle Hill updated?
This ranking of solar installers in Castle Hill, NSW rebuilds on a 30-day cycle and prints the date of its last rebuild above the list, which for the current version is October 2026. Ratings and review counts are re-read from Google over time rather than on a fixed schedule, so an individual figure here can be older than the rebuild date.
How can I improve my solar installer business ranking in Castle Hill?
Collect genuine customer reviews consistently, and keep a working website and phone number on your Google listing, because those are the three inputs the score reads. There is no placement to buy on this page. For scale: the median solar installer Starworks ranks in Castle Hill, NSW carries 41 Google reviews at 5.0 stars.
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