Every solar company in Perth can call itself “the best”. Some point to awards. Some point to installation volume. Some just say it louder than the next guy. But solar isn’t a purchase you judge on install day. It’s a 10–20 year relationship with your roof, your power bills, and (when something eventually needs attention) your installer.
Here’s the uncomfortable truth: the “best” solar company is the one you’ll still be able to reach when you actually need them.
Contents
So this page does 3 things:
- Gives you a data-driven shortlist of Perth/WA installers with strong, publicly available customer satisfaction signals.
- Gives you a simple framework to stress-test any quote (even if they’re not on the shortlist).
- Considers operational history.
Because in a fragmented market, “number one” doesn’t mean dominance. SunWiz notes the market share of the #1 retailer in any given year has been only about 3–4% since 2018. That’s not a criticism. It’s a warning label: you can’t outsource your decision to someone else’s marketing claim.
How to use this page
Step 1: Pick 3 installers (not 1).
Step 2: Read the lowest reviews first (that’s where you see aftercare behaviour). A little negative sentiment is a good sign for mature businesses—realness.
Step 3: Ask one question that reveals the truth: “When something fails, what is your actual warranty process and typical response time?”
Step 4: Verify business assurance (licences, codes, certifications) rather than trusting logos.
Step 5: Only then compare prices.
If you do nothing else, do steps 2 and 4. They eliminate most bad outcomes.
Qualification approach
- Perth/WA established (as indicated on public installer profiles)
- At least 100 SolarQuotes ratings (to avoid “perfect score on a tiny sample”)
- Operational history 5 years or greater (an improved value guarantee)
- Listed below with SolarQuotes’ overall rating and number of ratings as at 5 January 2026
Why SolarQuotes? It’s one of the longest-running solar review datasets in Australia, and states its installer database contains 76,000+ genuine reviews of 2,700+ Australian installation businesses gathered since 2009.
Top 10 solar companies in Perth, WA (Lite)
SolarQuotes with lite filters applied
All-time ratings (more than 100 reviews) x Business history (over 5 years) x Based in Perth (metropolitan area). A note about “ratings vs. reality”: This is not a definitive measure; rather, it serves as a general guideline for using the broadest local installer dataset with strict submission criteria.
- Lite filters:
- +5 years
- +100 reviews
- Perth-based
SolarQuotes screening x all-time reviews x current status:
1. Perth Solar Warehouse — 4.9/5 (703 ratings, Legendary)
2. Koala Solar — 4.9/5 (557 ratings, Legendary)
3. Positive Energy — 4.9/5 (339 ratings, Legendary)
4. Fritts Solar — 4.9/5 (285 ratings, Legendary)
5. Solaire Connect — 4.6/5 (322 ratings, Gold)
6. Empower Solar — 4.7/5 (113 ratings, Silver)
7. e-Solar — 4.8/5 (190 ratings, n/a)
8. Perth Solar Force — 4.6/5 (665 ratings, n/a)
9. Regen Power — 4.8/5 (944 ratings, n/a)
10. Sunterra — 4.6/5 (474 ratings, n/a)
Important. Ratings can’t tell you everything: installer capability for your particular project, individual expectations, timelines, and even how actively a company asks for reviews can affect scores. The value of this table is that it provides a considered shortlist from a reputable industry aggregation source for further investigation.
Review scores often differ across platforms
Different platforms have different collection methods and business tools. For example:
Solar Choice publishes review guidelines stating reviews are collected and published independently, and that manufacturers/installers have no ability to edit, remove or influence reviews (and it says incentives are disclosed).
Other platforms openly offer businesses subscription tools to increase review volume through invitations. Trustpilot Business promotes bulk and automatic review invitations.
ProductReview.com.au provides guidance and tools for businesses to request reviews, including “Manual Invitation Campaigns” via its platform.
None of that automatically makes a platform “bad”. But it does mean you should cross-check. Don’t treat any single star rating as reality, treat it as a clue. Also worth noting: SolarQuotes installer pages include advanced filters like “Low Rated” and “1 Year Follow Up”, which can help you look beyond install-day happiness into longer-term experience.
In a now mature industry, there’s an improved filter sequence for fine-tuning your ideal solar installer, alongside past reviews and away from the marketing hype with advanced search:
Advanced screen one
Customer experience
Reviews that prove behaviour over time. If solar and batteries are an investment, your decision framework should be built around risk reduction, not hype.
Earliest review timeline.
What to look for: a long, visible timeline of customer feedback.
What it means for you: the longer the public track record, the harder it is for a business to “reset” its story. It’s also your best hint about aftercare maturity.
Averages across platforms
What to look for: similar sentiment across at least two credible sources (e.g., SolarQuotes + Google, or SolarQuotes + Solar Choice).
What it means for you: a strong operator usually looks steady everywhere. A weak operator often looks “amazing” in one place and meaningfully worse in another, your job is to find out why.
Enough reviews to matter
What to look for: a sample size that reduces the odds of luck. To further refine the results, we’re considering more than 400 reviews across measured platforms.
What it means for you: 10 perfect reviews can be real. It can also be fragile. Hundreds of reviews generally give you a more stable signal of what you’re walking into.
What to look for: consistency across diverse platforms where customers visit frequently.
What it means for you: Diverse opinons including that of non-purchasing customers. For this aspect Google provides a greater holistic customer cross section experience.
Advanced screen two
Business assurance
Verifiable business attributes ensure the company can support you after installation. Reviews tell you how customers felt. Assurance tells you whether the business has the structure to support you when it counts. It’s also a company’s investment towards an elite calibre of committed business. A quantifiable vision for the future.
Energy Safety (WA): EC Number.
Why it matters: In WA, electrical work must be done by appropriately licensed people, and you can verify licences via government tools.
How to verify: use WA’s Online Licence Search / Building and Energy licence and registration search. Note: This is either registered under the ACN of a company or a sole trader.
What this means for you: you’re reducing compliance risk and increasing accountability.
Assurance value: 1
Why it matters: NETCC is designed to raise consumer protection standards for solar, batteries, EV chargers, and other new energy technologies, and to provide a public “Find an Approved Seller” tool.
How to verify: use the NETCC “Find an Approved Seller” search.
Extra context: Clean Energy Council states there are 2,000+ approved sellers.
Assurance value: 1
Why it matters: ISO is not a “solar badge”. It’s evidence of audited management systems; process, documentation, and repeatability. That tends to show up as better handover, fewer loose ends, and more consistent aftercare (not guaranteed, but correlated).
Relevant ISO standards for top-rated solar installation companies in Perth:
- ISO 9001: quality management.
- ISO 14001: environmental management
- ISO 45001: occupational health & safety management
How to verify: use IAF CertSearch to validate accredited certificates where available.
Assurance value: Quality 1 | Environment 1 | Safety 1
Real operational presence, not a mailbox, residential address, or a CBD shell.
Why it matters: aftercare is logistics. A real local operation streamlines site visits, repairs, and escalations.
How to verify: check the address, look for evidence of an operating facility, and confirm the trading entity.
Assurance value: 1
How long has the business been organisationally active in solar energy.
Why it matters: solar is long-horizon. Companies come and go. A longer operating history doesn’t guarantee perfection, but it can reduce the risk of being orphaned.
How to verify: ABN Lookup is the public view of the Australian Business Register and lets you check entity details.
Assurance value: >10 years: 2 | 5-10 years: 1 | <5 years: 0
Top 10 solar companies (Advanced)
Perth, Western Australia
Slice through the noise. The leading solar companies in Perth provide certification, satisfaction, and business history to consider.
Three context layers shift the perspective away from review ratings alone, improving organisational depth to warranty certainty. In a weighted scenario, certification and deeper business history account for 30% of the total weighting criteria applied to 70% of customer satisfaction ratings across comparative platforms. Excluding business history younger than 5 years and/or with fewer than 400 combined reviews. All solar companies’ tabled have common base filters. You choose the advanced screening aspects important to you.
- Common attributes:
- +5 years
- +400 reviews
- NETCC-certified
- Local HQ
| Alphabetical order: | Solar Quotes | EC licence | +10 yr business | Quality 9001 | Safety 45001 | Enviro 14001 | |
|---|---|---|---|---|---|---|---|
Empower solar | 4.7 (113) | 4.9 (594) | |||||
Koala Solar | 4.9 (703) | 4.9 (926) | |||||
MLEC | 4.5 (111) | 4.9 (1174) | |||||
Perth Solar Warehouse | 4.9 (703) | 4.9 (926) | |||||
Perth Solar Force | 4.6 (665) | 4.9 (501) | |||||
Positive Energy | 4.9 (339) | 4.9 (345) | |||||
Regen Power | 4.8 (944) | 4.9 (1277) | |||||
Solargain | 4.3 (1086) | 4.6 (507) | |||||
Sunterra | 4.6 (474) | 4.7 (278) | |||||
Westsun | 4.6 (123) | 4.9 (273) |
*Westsun had a “Hacking & Deletion event” forcing a Google listing reset. Data from the previous agregations confirm the total number of reviews recorded with no dilution in review consistency or organisational change. Regen Power mentions ISO9001 certification on its website. IAF CertSearch could not validate the accredited certificate under the business name or affiliated organisation (please contact to add).
Also worth knowing about
Perth based solar companies
These installers meet the base criteria above but have a narrower public assurance stack. Typically, that means ISO certification has not been publicly verified via IAF CertSearch, or operational history is less than 5 years. This isn’t a quality judgment; many of these businesses produce excellent work. It’s a snapshot of what’s verifiable in public records right now.
| Alphabetical order: | ||
|---|---|---|
Always Solar | JFK Group | Talk Energy |
Australis | Kluem Electrical | Technaus |
Clean NRG | Perth Solar Direct | Unisol |
Connect Solar | SEM Solar | Vista Electrical |
Future Solar WA | Solar4Ever | |
iBreeze | Sundrop Electricals | |
Regional leaders. Non metropolitan Perth: Green Wave (South West), Lite Force Electrical (Pilbara).
Verification tookit
Bookmark these. They’re the same tools every credible review site uses, and they’re free to anyone:
| Check | Tool |
|---|---|
WA electrical licence | |
NETCC Approved Seller status | |
ISO certification | |
Trading entity/ business history | |
Customer reviews (long timeline) | |
Customer reviews (broad cross-section) | Google Business Profile search |
Five questions to ask every installer
And when to walk away
1. “If my system stops producing, what happens next?”
2. “Who handles manufacturer warranty claims, you or me?”
3. “Do you use subcontractors? If yes, how do you control quality?”
4. “What’s excluded from your price?”
5. “If Western Power requirements change between quote and install, what happens to my quote?”
A good answer is specific. A vague answer is itself an answer.
Signals to walk away from
- Key promises won’t be put in writing.
- The trading entity on the quote doesn’t match the entity you researched.
- Pressure to sign today to keep a discount.
- The lowest reviews show a pattern of avoidance or blame-shifting (a one-off bad review is normal; a pattern is a warning).
- The business won’t tell you who is responsible for aftercare.
Frequent questions
Is this list “the definitive top 10” for Perth?
No. It’s a transparent shortlist based on verifiable criteria. Treat it as a starting point and apply the framework above to any installer you’re considering, including the ones on this page.
Why are SolarQuotes ratings often lower than other review platforms?
Different collection methods, different customer expectations, and different invitation tools shift outcomes. SolarQuotes also includes follow-up reviews 12 months after install, which tend to surface issues that don’t show on install day. Cross-check at least two credible platforms (SolarQuotes plus Google is a reasonable baseline) and read the low reviews for behaviour patterns.
Is it safer to choose a larger, older company?
Often, but not always. Maturity can mean refined processes. It can also mean higher volume and more edge cases. That’s why you verify assurance and read low reviews—those show how the business behaves in adverse scenarios.
Established businesses more often than not receive mixed customer opinions, even if minimal.
Do ISO certifications mean an installer is “better”?
Not automatically. ISO standards are designed around documented systems and continual improvement. In practice, that can correlate with fewer loose ends and more consistent delivery. Treat it as one signal among several, not as a guarantee.
