When I first decided to go solar in Perth, I figured the hard part would be picking a panel brand or figuring out what size system to get.
But no — the hardest part was finding a solar installer I could actually trust.
I’m not just talking about someone with a flashy website or a Facebook page full of stock images. I wanted someone who would actually turn up, do the install properly, explain things in plain English, and be there when things needed fixing later on.
So, after a whole lot of calling around, reading reviews, asking on community groups, and chatting to people in my neighbourhood, I found a few solar installers who stood out — for the right reasons.
Here’s my roundup of the top 5 solar companies in Perth as of 2025, based mostly on what real customers (and a few neighbours) had to say. No fluff, no sponsorships — just honest impressions.
1. Solar Naturally – Most Recommended in My Suburb
Website: solarnaturally.com.au
Head Office: Wangara, WA
Google Rating (2025): 4.8 ⭐ (1,900+ reviews)
I can’t even count how many times this name popped up when I asked about solar in Perth. My cousin in Cannington used them in 2023 and swears by their service.
They weren’t the cheapest, but they explained every detail like I was five. No dodgy sales tricks. Plus, the install crew was in and out in half a day.
She’s had zero issues in 2 years. System’s performing above expected output. Their after-sales support? Apparently excellent.
What stood out:
- Real in-person quotes
- Excellent documentation
- Tier-1 panels & Fronius inverters as standard
Drawback: Higher-end pricing
2. Clean NRG Solar – Best for Battery Installs
Website: cleannrg.com.au
Office: Osborne Park, WA
Google Rating (2025): 4.9 ⭐ (650+ reviews)
If you’re leaning toward adding a battery — especially a Tesla Powerwall — Clean NRG is worth calling. They’re one of the Tesla Certified Installers in WA and have loads of experience with backup systems.
Worth every cent. The guys did a flawless install, and the backup gateway switches over instantly when the grid drops.
What stood out:
- Specializes in battery & backup systems
- Certified for Tesla & Sonnen
- Fantastic post-install app training
Drawback: Not the cheapest. Bookings take longer due to demand.
3. Infinite Energy (Now Solargain Group) – Most Established
Website: infiniteenergy.com.au (redirects to solargain.com.au)
Google Rating (2025): 4.5 ⭐ (1,500+ reviews)
Infinite Energy used to be one of WA’s biggest solar brands. They were recently absorbed into Solargain — which is actually a good thing because now you get national-level stock and service combined with local WA knowledge.
System’s been humming along for 5 years. I did have a glitchy inverter at one point, but they swapped it out under warranty with no fuss.
What stood out:
- Long track record
- Solid warranties (25-year panels, 10-year inverter)
- Bigger team = faster installs
Drawback: Less personalized. May not offer latest battery tech.
4. Westsun Solar – Hidden Gem with Great Prices
Website: westsunsolar.com.au
Office: Bibra Lake, WA
Google Rating (2025): 4.7 ⭐ (420+ reviews)
Westsun is one of those companies that doesn’t spend big on ads but gets lots of word-of-mouth referrals. A bloke I met at Bunnings told me he used them and paid under $4,500 for a 6.6kW system in 2024.
Small team. Straight shooters. No upselling. Installers rocked up on time, didn’t smoke on the job, cleaned everything up. Done and dusted in five hours.
What stood out:
- Competitive pricing
- Family-owned vibe
- Real reviews, not overhyped
Drawback: Less known outside the south metro area. Shorter office hours.
5. Empower Solar Perth – Best for First-Time Solar Buyers
Website: empowersolarperth.com.au
Google Rating (2025): 4.9 ⭐ (220+ reviews)
Empower isn’t a huge outfit, but they’re known for hand-holding first-time buyers through the process. My retired neighbour Barbara used them in 2022 and raves about how patient they were.
I had no idea what I was doing. But they explained everything, never rushed me. Even came back a week later to show me how the app worked.
What stood out:
- Great for people new to solar
- Detailed breakdowns and friendly service
- Small systems welcome
Drawback: Not ideal for large installs or complex roofs. Smaller team.
Final Thoughts: Which One Should You Call?
Honestly? Call two or three and get them to quote. Solar is one of those things where the installer matters more than the brand sometimes.
If you want:
- Premium & reliable: Solar Naturally
- Battery-ready + Tesla certified: Clean NRG
- Big brand stability: Infinite Energy / Solargain
- Budget-friendly but good quality: Westsun Solar
- Gentle guidance & support: Empower Solar Perth
Whichever you go with, make sure they:
- Are CEC accredited
- Offer at least a 5-year install warranty
- Provide clear documentation
- Don’t pressure you into upgrades you don’t need
Want My Quote Comparison Template?
I made a Google Sheet to compare quotes side by side: pricing, brands, inverter types, warranties, and response times. If you want a copy, just leave a comment or shoot me a message.
Hope this list helps — and if you’re about to join the solar club, welcome aboard. Sunshine’s free, mate. Might as well use it.
