Best Solar Installers in Perth
Compare the top solar installers in Perth, WA, ranked by our composite reputation score.
Updated October 2026 · Based on 28,019 real Google reviews across the 170 solar installers
Top Solar Installers in Perth, WA
The short answer
As of October 2026, the 3 highest-ranked solar installers in Perth, WA on the Starworks directory are Koala Solar (5.0 stars from 598 Google reviews), Fritts Solar (5.0 stars from 317 Google reviews) and Regen Power (4.9 stars from 1,462 Google reviews).
Starworks ranks 170 solar installers in Perth, WA, holding 28,019 Google reviews between them. Across the 170 the median rating is 4.9 stars from a median of 38 reviews. Of the 170, 141 are rated 4.5 or better and 52 have passed 100 reviews. The most-reviewed carries 2,717 reviews, more than the top-ranked solar installer holds, which is why rating alone does not set the order.
Every figure here is computed from Google review data that Starworks collects for solar installers in Perth, WA, recalculated when this page rebuilds. Placement on this list cannot be bought.
Vista Electrical Controls - Solar Perth
Read 137 reviews · Score: 82/100
South Coast Auto Electrics
Read 535 reviews · Score: 73/100
Solar 1 Nation Electricals
Read 407 reviews · Score: 73/100
Eco Shine Solar Cleaning and Maintenance
Read 279 reviews · Score: 73/100
Power Source Solar Batteries Perth
Read 165 reviews · Score: 73/100
What customers wrote about solar installers in Perth
Real Google reviews of businesses ranked on this page. Reviewer names are never shown.
“Fantastic service from Koala Solar!I recently chose Koala Solar for my 6.6kW system installation and couldn't be happier. The customer service team kept me up to date with everything prior to installation. The…”
“Most excellent service. The additional battery upgrade was marred by the fact that the installers found an existing fault with my installation which prevented the upgrade from being successful. The company went above…”
“I first used Regen Power about 5 years ago to install a 6.66kw splar sytem on my roof. I then again used regen power when I recently installed a battery at our property to take advantage of the generous govement rebate…”
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Frequently Asked Questions
Common questions about solar installers in Perth.
Who are the best solar installers in Perth?
As of October 2026, the 3 highest-ranked solar installers in Perth, WA on the Starworks directory are Koala Solar (5.0 stars from 598 Google reviews), Fritts Solar (5.0 stars from 317 Google reviews) and Regen Power (4.9 stars from 1,462 Google reviews). Every figure here is computed from Google review data that Starworks collects for solar installers in Perth, WA, recalculated when this page rebuilds. Placement on this list cannot be bought.
How many solar installers does Starworks rank in Perth?
Starworks ranks 170 solar installers in Perth, WA, holding 28,019 Google reviews between them. Across the 170 the median rating is 4.9 stars from a median of 38 reviews. Of the 170, 141 are rated 4.5 or better and 52 have passed 100 reviews. The most-reviewed carries 2,717 reviews, more than the top-ranked solar installer holds, which is why rating alone does not set the order.
What star rating should I expect from a good solar installer in Perth?
The median Google rating across the 170 solar installers Starworks ranks in Perth, WA is 4.9 stars, and 141 of them sit at 4.5 or above. A rating at or near that median is ordinary for solar installers in Perth, WA 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 Perth have?
The median solar installer Starworks ranks in Perth, WA carries 38 Google reviews, and 52 of the 170 solar installers have passed 100. The most-reviewed of them carries 2,717.
How does Starworks rank solar installers in Perth?
Starworks gives every solar installer in Perth, WA 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 Perth 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 Perth, WA. 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 50 distinct solar installers in Perth, WA rather than a longer list of repeats.
How often is this list of solar installers in Perth updated?
This ranking of solar installers in Perth, WA 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 Perth?
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 Perth, WA carries 38 Google reviews at 4.9 stars.
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