When every solar company is a self-proclaimed number one, how do you genuinely discern the top 10 solar companies in Perth? Some companies reference a nominated quarter in a bygone era, citing solar installation volume as a leading accolade. Others have no justification, more so if they say it enough, you’re meant to believe it. In 2025, there’s a better way. With almost two decades of mainstream history to consider, a data-backed [all-time] answer exists.
Contents
Over the last two decades, the solar industry has matured, and there is no longer a specific methodology for the ideal purchasing sequence (even Aldi sells solar). With innovation over time, many businesses have evolved to cater to market segments who prefer different adoption methods away from the more stigmatising in-home sales consultations. In 2025, there is no longer a right or wrong adoption method towards sustainable energy.
Customers expect assured performance from a solar company. With varied adoption avenues, consider refining your shortlist through organisational depth to assist in improved warranty certainty from an invested local solar company. If two decades of voluminous implementation history have taught us anything, manufacturer product warranties are only as good as those of the solar installation company.
Before exploring this list of the top 10 solar installers in Perth, it’s important to recognise many great smaller solar businesses in Perth that, through less mainstream recognition avenues, play a significant part in sustainable energy adoption. For aspiring solar businesses seeking mainstream avenues, consider this lists weighted business assurances an organic growth template relevant to consumers away from review count number pumping.
This guide provides a perspective on Perth-based solar businesses with defined operating procedures and a high level of customer satisfaction in the public domain. All companies should be valued on individual merit.
Definitions
Many top-rated lists prove shallow in defining factors and organisational depth. Definitions provide a scope of industry benchmarks attributed towards a leading solar company in 2025 with broad customer appeal, assisting improved warranty certainty over a minimum 10-year warranty period.
| Categories | Reference |
|---|---|
CUSTOMER | |
Business location qualification | Greater Perth region (non CBD) |
Compared platforms | Google & SolarQuotes.com.au |
Minimum reviews | [all time] Greater than 350 combined |
Review count | [all time] Number of reviews total to the ‘Review date period’ |
Review date period | [all time] to 2nd Jan 2025 |
Average | The average review score between the ‘Compared platforms’ |
BUSINESS | |
NETCC | New Energy Technology Consumer Code signatory |
ISO: Q,S,E | International Organisation for Standardisation compliance:
|
EC | [Western Australia] Electrical Contractors licence |
HQ | Headquarters location |
Operation | Benchmark: 10 years [active] business operation |
We love numbers. They slice through sales spin and marketing hype, delivering data-inspired information for an informed buying decision. To justify the Review volume, a top 10 solar company must have comparative numbers on like-for-like platforms that all companies have in common—a relative playing field over the review period.
Tip: Once you’ve found your shortlist of top 10 solar companies, assess by the lowest reviews first and identify how a business handles aftercare in adverse scenarios to assist a purchasing decision between businesses. Clouding this method slightly, sub-5-year operational businesses are less likely to have negative sentiment to assess.
Top Solar Companies 1 to 5
There will be many perspectives on what justifies the top 10 solar companies in Perth. What’s most important is customer satisfaction over time, combined with solid business assurances to support a self-generated energy investment. Two final aspects to consider are local and established businesses where visiting a committed operation is possible.
1. Perth Solar Warehouse
- Digital friendly approach: Online prices and local knowledge base
- Leading business endorsements: EC, NETCC, ISO (Quality, Environment, Safety)
- No-pressure to buy quoting experience
Simplifying the adoption of new energy technology, Perth Solar Warehouse ticks the boxes of high reviews across the two common reviewing platforms that deliver customers the most significant level of transparency that all top 10 solar companies in Perth have in common. With a comprehensive online product suite, customers can browse at their convenience without being locked into an aggressive sales pipeline to receive an installation price.
Perth Solar Warehouse manages everything for users to surpass from day one, with full monitoring portal integration and an identifiable aftercare service. An average rating of 4.9/5 and a Review volume of over 1400 reviews from the last ten years ensure the buying confidence many seek. Additional company depth exists with ISO-certified (Quality, Environment and Safety) business management systems, NETCC consumer endorsement, and a licenced electrical business in Western Australia, providing the assurance most discerning shoppers seek.
Customer
Review count: 1397
First review: 2013
Google: 4.9/5
SolarQuotes: 4.9/5
Review Average: 4.9/5
Business
- NETCC: Approved
- ISO: Quality, Safety, Environment
- EC: 010771
- HQ: Local
- Operation: +10 years
Assurance: 8
Location: (South) 3/90 Discovery Dve, Bibra Lake, WA 6163
Visit: PerthSolarWarehouse.com.au
2. Regen Power
Regen has been around for a good period, and an early first review date reflects that. Diversity in minor review (low count) platforms is where concern could loom for some. Nevertheless, Regen Power makes the list of the top 10 solar companies in Perth due to a respectable overall average. With an improved customer review accumulation over the last two years, plus with new weighted business assurance layers factored Regen Power enjoys a three-position climb in 2025.
CUSTOMER
Review count: 1100
First review: 2010
Google: 4.8/5
SolarQuotes: 4.7/5
Review Average: 4.8/5
BUSINESS
- NETCC: Approved
- ISO: Quality
- EC: 11654
- HQ: Local
- Operation: +10 years
Assurance: 6
Location: (South) Canning Vale, WA 6155
Visit: regenpower.com
3. SolarGain
An industry stalwart that moves serious volume locally and nationally. SolarGain’s early solar advertisements remain in the minds of many. “Remember the name, SolarGain,” commentated by Dennis Lillee–a marketing masterstroke that lives on. The oldest review date, largest review size and commendable average over time. SolarGain is one of only three mainstream solar companies in Perth with ISO 9001 Quality certification for more assured business management profile.
CUSTOMER
Review count: 1430
First review: 2010
Google: 4.6/5
SolarQuotes: 4.3/5
Review Average: 4.5/5
BUSINESS
- NETCC: Approved
- ISO: Quality
- EC: 10367
- Local: Yes
- Operation: +10 years
Assurance: 6
Location: (North) Malaga, WA, 6090
Visit: solargain.com.au
4. Sunterra
Possessing a team of local in-house installation technicians, Koala Solar has consistency across the key reviewing platforms and a healthy sample size for comparison. An assurance towards a good level of customer focus. A smaller company by comparative installation volume, Koala’s approach to the ten-year mark will undoubtedly add confidence as a top 10 solar company in Perth.
CUSTOMER
Review count: 671
First review: 2011
Google: 4.7/5
SolarQuotes: 4.6/5
Review Average: 4.7/5
BUSINESS
- NETCC: Approved
- ISO: n/a
- EC: 12543
- HQ: Local
- Operation: +10 years
Assurance: 5
Location: (South) Canning Vale, WA, 6155
Visit: sunterra.com.au
5. Koala Solar
Possessing a team of local in-house installation technicians, Koala Solar has consistency across the key reviewing platforms and a healthy sample size for comparison. An assurance towards a good level of customer focus. A smaller company by comparative installation volume, Koala’s approach to the ten-year operation mark will undoubtedly add definition as a leading Perth company.
CUSTOMER
Review count: 697
First review: 2016
Google: 4.9/5
SolarQuotes: 4.9/5
Review Average: 4.9/5
BUSINESS
- NETCC: Approved
- ISO: n/a
- EC: 11654
- HQ: Local
- Operation: < 10 years
Assurance: 4
Location: (South) Yangebup, WA, 6164
Visit: koalasolar.com.au
Mid-point observation
Making it to the midway point of the top 10 solar companies in Perth, an identifiable trend emerges: SolarQuotes.com.au review scores are always lower. This will be the case when comparing every company’s SolarQuotes.com.au review to alternative platforms. The difference is deeper review criteria, and SolarQuotes.com.au follows up on customer reviews annually to better gauge solar company performance over time without Review Gating.
Many solar companies follow up on customer satisfaction after the point of sale. However, the true test of a business is how it cares for its customers over time. Purchasing a sustainable energy product is an investment in your energy security. Always align your investment with a company where you feel comfortable servicing your expectations as they arise.
Top Companies 6 to 10
Despite the varied observation points, all of these top 10 solar companies in Perth have established local roots with a reputation to uphold and, due to their ideal customer focus, are more likely to prove reliable in the event of a warranty scenario.
6. Empower
One of the youngest solar companies on the 2025 list, Empower has a track record of good customer satisfaction across key platforms and a comparable Review count for its age. Having endured healthy growth phases in recent history, Empower looks set to continue its momentum into 2025 by ensuring that its customers have access to technology that is considered the forefront of innovation. Customers should have confidence in moving forward with Empower Solar Australia.
CUSTOMER
Review count: 511
First review: 2018
Google: 4.9/5
SolarQuotes: 4.7/5
Review Average: 4.8/5
BUSINESS
- NETCC: n/a
- ISO: n/a
- EC: 14619
- HQ: Local
- Operation: < 10 years
Assurance: 4
Location: (South) Canning Vale, WA 6155
Visit: empowersolaraustralia.com.au
7. MLEC
A diverse electrical business, Google reviews of MLEC Solar grew rapidly in 2023 and 24. There is a slight mismatch in SolarQuotes.com.au customer experiences, which may raise some questions. However, MLEC displays signs of promising customer dedication since adding solar retail to its business in 2020. Focusing on business assurances beyond Google review accumulation in 2025 would prove advantageous for this high-volume company.
CUSTOMER
Review count: 1089
First review: 2020
Google: 4.9/5
SolarQuotes: 4.4/5
Review Average: 4.7/5
BUSINESS
- NETCC: n/a
- ISO: n/a
- EC: 11449
- Local: Yes
- Operation: +10 years
Assurance: 4
Location: (South) Canning Vale, WA, 6155
Visit: mlecsolar.com.au
8. Perth Solar Force
A young first review may slightly discourage a good overall average when comparing Perth Solar Force to other top 10 solar companies in Perth. A marketing-heavy, sales-intensive company appealing to a broad demographic of purchasers with in-house installers that many will consider. An option that provides in-home sales consultations. Acquiring ISO-certified business assurance surely is the next step for this West Australian top 10 volume operator with sub-operations in the South West and Geraldton.
CUSTOMER
Review count: 979
First review: 2016
Google: 4.9/5
SolarQuotes: 4.6/5
Review Average: 4.7/5
BUSINESS
- NETCC: Approved
- ISO: n/a
- EC: 12770
- Local: Yes
- Operation: < 10 years
Assurance: 4
Location: (North) Wangarra, WA, 6065
Visit: perthsolarforce.com.au
9. Westsun
Westsun are delivering impressive large-scale solar installations—a great sign. Meanwhile, they continue to have a steady presence in the business-to-customer department (smaller systems). Google to SolarQuotes.com.au reviews are a fraction mismatched. However, the overall Review average is commendable, with an early initial review date. Westsun knows its strengths and may be less prevalent than other mainstream providers, but they’re a proven Perth solar company with qualified installer roots.
CUSTOMER
Review count: 396
First review: 2014
Google: 4.9/5
SolarQuotes: 4.6/5
Review Average: 4.7/5
BUSINESS
- NETCC: n/a
- ISO: n/a
- EC:
- HQ: Local
- Operation: +10 years
Assurance: 4
Location: (North) Wangarra, WA, 6065
Visit: westsunenergy.com.au
10. Solaire Connect
To be fair, Solaire’s review average could be higher if they were a younger company. But that’s a testament to their time in business and first review date as younger companies actively follow up reviews. Ignore the Review count on this one. The first review date and balance across the essential reviewing platforms are the focus here. Solaire Connect has a good balance of assurance for its business size that customers can rely on.
CUSTOMER
Review size: 386
First review: 2011
Google: 4.8/5
SolarQuotes: 4.6/5
Review Average: 4.7/5
BUSINESS
- NETCC: Approved
- ISO: n/a
- EC:
- Local: Yes
- Operation: +10 years
Assurance: 4
Location: (North) Joondalup, WA 6027
Visit: solaireconnect.com.au
TABLE VIEW:
Using time, reviews, averages and establishment to distinguish the post-2020 race for reviews among digitally aware businesses. Annually audited assurances assist company depth away from review-only profiling. Arbitrarily defined, these are Perth-based solar companies with a review volume greater than 350 reviews on like-for-like qualified platforms exceeding greater than 5 years of business operating history.
Top 10 Solar Companies in Perth
| Company | SolarQuotes | First Review | Local | EC | 10yr | NETCC | ISO | |
|---|---|---|---|---|---|---|---|---|
1. Perth Solar Warehouse | 4.9 (768) | 4.9 (629) | 2013 | Q,E,S | ||||
2. Regen Power | 4.8 (698) | 4.7 (402) | 2010 | Q | ||||
3. SolarGain | 4.6 (383) | 4.3 (1047) | 2010 | Q | ||||
4. Sunterra | 4.7 (208) | 4.6 (463) | 2016 | |||||
5. Koala Solar | 4.9 (430) | 4.9 (479) | 2016 | |||||
6. Empower Solar | 4.9 (487) | 4.7 (101) | 2018 | |||||
7. MLEC Solar | 4.9 (994) | 4.4 (95) | 2020 | |||||
8. Perth Solar Force | 4.9 (334) | 4.6 (645) | 2016 | |||||
9. Westsun | 4.9 (273) | 4.6 (123) | 2014 | |||||
10. Solaire Connect | 4.8 (75) | 4.6 (311) | 2011 |
Interval Data: January 2 2025.
A local solar company (your installer) is the solar energy system’s most valuable warranty component. It’s your point of contact in a nonperformance scenario. Customer experience over an enduring history can aid assurance of a more dependable local solar company for responsive support and a dependable overall purchasing result.
Two sub-categories further shaped this list of the top 10 solar companies in Perth. Less than 350 combined reviews and/or solar companies with less than 5 years of business operational history. Here are the top 10 leaders in each subcategory.
Top 10 - Less than 350 reviews
Local Perth-based solar companies with fewer than 350 reviews yet demonstrate attributes likely to support a sustainable energy journey based on defined operations and history. These businesses have a track record in the Perth/South West region of Western Australia as locally proven solar companies.
| Company | SolarQuotes | First Review | Local | EC | 10yr | NETCC | ISO | |
|---|---|---|---|---|---|---|---|---|
1. Solar4Ever | 4.8 (84) | 4.6 (52) | 2011 | |||||
2. JFK Group | 5.0 (178) | 4.9 (79) | 2018 | |||||
3. Always Solar | 5.0 (38) | 4.7 (6) | 2019 | |||||
4. Unisol | 5.0 (100) | 5.0 (2) | 2018 | |||||
5. Australis | 4.9 (78) | 4.5 (16) | 2011 | |||||
6. Green Wave | 5.0 (175) | 4.9 (86) | 2020 | |||||
7. Solar My Home | 5.0 (134) | 4.8 (40) | 2018 | |||||
8. Clean NRG | 4.8 (75) | 4.5 (271) | 2010 | |||||
9. e-Solar | 4.9 (142) | 4.8 (174) | 2012 | |||||
10. SEM Solar | 4.9 (52) | 4.8 (123) | 2016 | |||||
Top 10 - Less than 5 years operation
The first five years are the most fragile periods for any business. However, if engaging one of these locally based Perth solar companies, don’t discount them based on operational history. Promising attributes are in development as reflected in their high review averages x volume.
Business assurance thins throughout the list, but this should improve with time. It’s always a positive sign to see emerging solar companies prioritise customer satisfaction from a sustainable energy investment. Consider these local solar companies rising, accruing respectable customer data over their business time line.
| Company | SolarQuotes | First Review | Local | EC | 10yr | NETCC | ISO | |
|---|---|---|---|---|---|---|---|---|
1. Positive Energy | 5.0 (205) | 4.9 (215) | 2022 | |||||
2. Fritts | 5.0 (231) | 4.9 (241) | 2021 | |||||
3. Kluem | 4.9 (85) | 4.8 (51) | 2021 | |||||
4. Sundrop | 5.0 (17) | 4.9 (26) | 2021 | |||||
5. Talk Energy | 4.9 (151) | 4.8 (2) | 2022 | |||||
6. Perth Solar Direct | 4.9 (51) | 2021 | ||||||
7. National Renewable | 4.8 (256) | 2021 | ||||||
8. Think Renewable | 4.5 (144) | 4.3 (6) | 2022 | |||||
| 4.5 (81) | 4.7 (161) | 2020 |
Since publishing, Sungain’s website lists the company as permanently closed.
Summary of definitions
Solar is a hyper-competitive, ultra-fragmented market, with leading-volume solar companies in Australia occupying no more than 4% of the total market share of installation capacity. With no definitive volume leader, consider refining your top solar company selection through two essential aspects to help you hone in on your ideal locally proven provider away from the noise.
1. Customer Experience
Customer experience/reviews are now available through various online review platforms. The one drawback is certain platforms can be skewed if not aware. Discerning review platforms ›
Earliest review: Date. An early review date provides interactional customer transparency within the Internet era (post-1995). Gauging a defined and interactional timeline assists transparent aftercare consideration.
Experience factor: A defined review timeline provides customer insights away from registered businesses in idle mode or profile resetting.
Review average. The average score between two credible review platforms. The most transparent customer experiences are known to exist on Google, SolarQuotes.com.au and SolarChoice.com.au.
Avoid platforms who use review gating mechanisms for premium subscription tiers: Product Review, Trust Pilot.
Experience factor: High-ranking solar companies have consistent customer experiences across all review platforms and profiles.
Review count. Volume of reviews assist popularity of a service and local demographic appeal.
2. Business Assurance
In 2025, company review profiling alone can prove less trustworthy than its intended purpose. So it’s important to understand a solar company’s audited depth in business assurance.
The disclaimer in any future finically motivated investment is usually “Past performance isn’t an indicator of future performance”. Therefore, safeguarding the qualification of a local solar company to support your sustainable energy purchase is essential. Assurance benchmarks designed to improve results. Use recognised business definitions away from marketed hype, memberships and award systems.
Energy Safety (WA): EC Number. There are two categorisations of solar companies in Perth:
- Solar ‘Sales’ companies.
- Technically aware solar providers with supportive electrical qualifications to assist in accurate design and aftercare.
Method: A company or business should be listed on the West Australian Governments Building and Energy licence and registration search.
Assurance factor: Electrically licensed businesses are insured to directly perform electrical work on your property.
Assurance value: 1
New Energy Technology Consumer Code (NETCC) endorsement acts as an audited customer safeguard of retail solar businesses who agree to abide by a fair play consumer code of conduct.
Method: A solar company should be listed using the NETCC—Find an approved seller tool.
Assurance factor: NETCC-approved businesses meet annually audited consumer protection requirements for selling sustainable energy technology in Australia.
Assurance value: 1
The International Organisation for Standardisation (ISO) is more commonly sought after in business-to-business assurances. Annually audited, it sets business quality parameters in nominated areas of operation and provides independent verification of a business’s operating procedures.
Certifications under the International Organisation for Standardisation relevant to solar companies:
- Quality management: ISO 9001:2015
- Safety management: ISO 45001:2018
- Environmental management: ISO 14001:2015
Method: A company should be listed on the Global ISO register or display a level of conformance in adoption.
Assurance factor: Solar companies meeting an international standard in operating procedures provides improved organisational insight. Compared to alternative certifications, meeting a recognised international standard is an invested and exhaustive process towards quality conscious business operations.
Assurance value: Quality 1 | Environment 1 | Safety 1
Primary business location (HQ): Greater Perth, Western Australia. Solar companies committed to local community are grassroots, established businesses with a primary headquarters and distribution facility in Western Australia.
Method: Ensure a visual of a branded operation. Local presence is a solar companies sign of investment to the greater Perth region and customer satisfaction.
Assurance factor: Companies with established operations in Western Australia are invested in the local community with a reputation to uphold.
Assurance value: 1
Self-generated sustainable energy is a mature industry in 2025 with mass market appeal first experienced in 2009. Market segments within the broader sustainable energy industry have evolved and a defined history that can weather market fluctuations becomes evident among leading companies.
Method: Referenced current [and previous—in evolved businesses] ABN/ACN timelines combined with operational business history.
Assurance factor: Greater than 10 years is regarded as an elite-level benchmark for sustainable energy businesses.
Assurance value: >10 years: 2 | 5-10 years: 1 | <5 years: 0
Continued reading
Comparing solar companies in 2025? There’s a cheat code to spotting businesses who focus on number pumping and review gating: Avoid deceptive solar companies with this 6 step guide ›
