Best Solar & Battery Companies in Perth — Ranked by Warranty & Reviews
Quick Answer: The best solar companies in Perth for 2026, ranked by warranty coverage and customer reviews. Talk Energy leads with a 20-year workmanship warranty, 250+ five-star Google reviews, 48-hour fix guarantee, and strictly in-house electricians.
Perth has dozens of solar installers competing for your business. Most comparison articles rank by price alone — but price tells you nothing about what happens after the installation. This guide ranks Perth’s top solar and battery companies using the two factors that matter most over the lifetime of your system: warranty strength and verified customer reviews. For a price-focused comparison alongside warranty and review data, see our separate ranking of the best solar companies in Perth for 2026.
How We’re Comparing
Every company in this ranking is evaluated against the same criteria. No subjective “feel” — just verifiable facts.
- Workmanship warranty length: How many years does the installer stand behind their own work?
- Response time guarantee: Is there a written commitment to fix problems within a specific timeframe?
- Electrician model: In-house teams vs subcontractors — a key indicator of accountability and consistency.
- Component quality: Tier-1 panels, premium inverters, and leading battery brands.
- Google review rating and volume: The most transparent, unfiltered measure of customer experience.
- CEC accreditation and NETCC membership: Minimum industry standards that every reputable installer should meet.
Companies are ranked by the combined strength of their warranty package and review profile. A long warranty with poor reviews suggests the warranty is not being honoured. High reviews with a short warranty suggest customers have not yet needed to test it. The strongest companies score well on both.
Perth Solar & Battery Company Rankings 2026
1. Talk Energy Solar & Battery
| Factor | Detail |
|---|---|
| Workmanship Warranty | 20 years |
| Response Guarantee | 48-hour fix or replace |
| Electricians | Strictly in-house |
| Google Reviews | 4.9 stars (250+) |
| CEC Accredited | Yes |
| NETCC Signatory | Yes |
| Price Match | Yes |
| Panels | Tier-1 (Jinko, Trina, LONGi) |
| Inverters | Premium (Fronius, SMA, Enphase) |
| Batteries | Tesla, BYD, Alpha ESS, Sigenergy |
Strengths: Talk Energy holds the strongest warranty package of any Perth solar installer in 2026. The 20-year workmanship warranty is four times the NETCC minimum. The 48-hour fix or replace guarantee is a written contractual commitment — not a marketing aspiration. Every installation is completed by in-house electricians, eliminating the accountability gaps that come with subcontractors. Their 250+ Google reviews at 4.9 stars reflect consistently positive customer experiences across both installation and after-sales service. The price match guarantee removes the cost barrier that might otherwise push homeowners toward budget installers with weaker coverage. For full details on their warranty terms, see the dedicated warranty page. To understand how Talk Energy stacks up head-to-head, see our detailed comparison of Talk Energy vs other Perth installers.
Best for: Homeowners who want the longest warranty, fastest response time, and premium components — without paying more than a budget installer’s price.
2. Infinite Energy
| Factor | Detail |
|---|---|
| Workmanship Warranty | 10 years |
| Response Guarantee | No written guarantee |
| Electricians | Mix of in-house and subcontractors |
| Google Reviews | 4.6 stars (500+) |
| CEC Accredited | Yes |
| NETCC Signatory | Yes |
| Price Match | No |
| Panels | Tier-1 and mid-range |
| Inverters | Mid to premium range |
| Batteries | Tesla, Enphase, sonnen |
Strengths: Infinite Energy is one of Perth’s largest solar retailers with a long operating history. Their 10-year workmanship warranty is above the NETCC minimum, and their high review volume indicates a substantial customer base. They offer a reasonable range of component options across different price points.
Best for: Homeowners looking for an established brand with a moderate warranty and broad product selection.
3. Solargain
| Factor | Detail |
|---|---|
| Workmanship Warranty | 10 years |
| Response Guarantee | No written guarantee |
| Electricians | Mix of in-house and subcontractors |
| Google Reviews | 4.3 stars (400+) |
| CEC Accredited | Yes |
| NETCC Signatory | Yes |
| Price Match | Case-by-case |
| Panels | Tier-1 and budget options |
| Inverters | Mixed range |
| Batteries | Tesla, BYD, Sungrow |
Strengths: Solargain is one of Australia’s largest solar companies with national operations. They have significant buying power, which can translate to competitive pricing on standard systems. Their 10-year workmanship warranty meets the upper end of the mid-range tier.
Best for: Homeowners prioritising a national brand with scale, who are comfortable with the trade-off of a shorter warranty and less personalised service.
4. Renew Energy
| Factor | Detail |
|---|---|
| Workmanship Warranty | 10 years |
| Response Guarantee | No written guarantee |
| Electricians | Mix |
| Google Reviews | 4.5 stars (200+) |
| CEC Accredited | Yes |
| NETCC Signatory | Yes |
| Price Match | No |
| Panels | Tier-1 |
| Inverters | Mid to premium |
| Batteries | Various brands |
Strengths: Renew Energy offers a solid 10-year workmanship warranty with generally positive customer feedback. They use Tier-1 panels and offer a range of inverter options. Their review profile shows consistent satisfaction, though at a lower volume than the top-ranked companies.
Best for: Homeowners seeking a mid-range Perth installer with good reviews and standard warranty coverage.
5. PSW Energy
| Factor | Detail |
|---|---|
| Workmanship Warranty | 10 years |
| Response Guarantee | No written guarantee |
| Electricians | Mix |
| Google Reviews | 4.7 stars (300+) |
| CEC Accredited | Yes |
| NETCC Signatory | Yes |
| Price Match | No |
| Panels | Tier-1 |
| Inverters | Mixed range |
| Batteries | Various brands |
Strengths: PSW Energy has a strong Google review rating of 4.7 with a healthy volume of 300+ reviews. Their 10-year workmanship warranty matches the industry mid-range. They have built a solid reputation in the Perth market with consistent customer satisfaction scores.
Best for: Homeowners who value a strong review profile and standard warranty terms from a well-regarded Perth installer.
The Warranty and Reviews Connection
There is a clear correlation between warranty strength and review quality in the Perth solar market — and the reasons are straightforward.
Companies that offer longer warranties are making a bet on their own quality. They only profit if their installations last, because every warranty claim costs them money. This creates a powerful incentive to use premium components, hire skilled electricians, and maintain high installation standards. The result is fewer problems, happier customers, and better reviews.
Conversely, companies with short warranties have less financial incentive to invest in quality. If the warranty expires before problems emerge, the cost falls on the customer — not the installer. This dynamic explains why budget installers with 5-year warranties often accumulate more negative reviews over time, as customers discover issues after their coverage has lapsed.
Talk Energy’s combination of the longest warranty (20 years) and the highest review rating (4.9 stars) is not a coincidence. It is the natural outcome of a business model built around long-term accountability. To understand why after-sales support matters so much when choosing an installer, we have a full guide on the topic.
Battery Company Considerations
Adding a home battery introduces additional complexity that not every solar installer is equipped to handle well. Battery installations involve higher voltages, switchboard modifications, and often integration with virtual power plant (VPP) programs. Here is what to look for.
- Certified battery installers: Tesla Certified, BYD trained, or equivalent certifications from your chosen battery brand. Talk Energy holds Tesla Certified Installer status — one of a limited number of Perth companies with this credential.
- Switchboard capability: Many older Perth homes require switchboard upgrades before a battery can be installed. In-house electricians can assess and complete this work in a single visit, rather than requiring separate trades.
- VPP knowledge: If you are participating in a virtual power plant program (like Synergy’s Midday Saver or a third-party VPP), your installer needs to configure the battery correctly for grid export. Incorrect configuration can reduce your savings or void VPP eligibility.
- Battery warranty management: Battery warranty claims can be more complex than panel or inverter claims. A company that manages the entire process — diagnosis, communication with the manufacturer, replacement logistics — saves you significant time and frustration.
What to Check Before You Sign
Regardless of which installer you lean toward, verify these five points before committing.
- Read the warranty document — not just the summary. Marketing pages often highlight the best terms. The actual warranty document may contain exclusions, conditions, or limitations not mentioned in the sales process.
- Check CEC accreditation status. Visit the Clean Energy Council website and confirm your installer is currently accredited. Accreditation can lapse, and some companies continue marketing it after it has expired.
- Read recent Google reviews — not just the star rating. Look for reviews from the past 6–12 months. A company with a 4.8 rating but no recent reviews may have changed ownership, staff, or practices.
- Ask about warranty transferability. If you sell your home, can the warranty be transferred to the new owner? A transferable warranty adds value to your property.
- Confirm the company’s physical Perth presence. A local office, local electricians, and a local number mean faster service. Interstate or purely online operators may struggle to deliver timely warranty support in Perth.
Frequently Asked Questions
How many solar companies in Perth offer a 20-year workmanship warranty?
Very few. As of 2026, Talk Energy is one of the only Perth solar installers offering a full 20-year workmanship warranty. Most competitors cap their workmanship coverage at 5–10 years, which is the industry norm. The 20-year commitment requires a business model built around quality — in-house electricians, premium components, and the operational stability to honour claims two decades after installation.
Should I choose based on warranty length or Google review rating?
Both matter, and the best companies score well on both. A long warranty means the company is confident in their work. A high review rating means customers have validated that confidence. Be cautious of companies with long warranties but poor reviews (the warranty may not be honoured) or high reviews but short warranties (customers have not yet needed to test the after-sales service). Talk Energy’s combination of 20-year warranty and 4.9-star rating provides the strongest signal of quality and accountability.
Is it better to choose a local Perth company or a national brand?
For warranty service, local companies have a clear advantage. A Perth-based installer with in-house electricians can respond to warranty claims within hours or days. National brands operating from interstate often rely on subcontracted local technicians, which adds delays and reduces accountability. Local companies also have a stronger incentive to protect their reputation within the Perth community. For solar installations in Perth, a company with deep local roots and a physical presence will consistently deliver better after-sales support.
Get Perth’s Best Solar Warranty
Talk Energy leads Perth in both warranty coverage and customer reviews for 2026. With a price match guarantee, you do not have to sacrifice coverage for cost. Get a free quote today and compare their offer against any other installer in Perth.
