Top Solar & Battery Companies in Perth: The Homeowner’s Guide
Choosing solar in Perth used to be about finding the cheapest panels. Today, it’s about finding a partner who will still be answering the phone in ten years.
With Western Australia’s energy grid changing and battery storage becoming the new standard, your choice of installer is the most important part of the investment. At Your Energy Answers, we’ve looked past the flashy marketing to find the companies that consistently deliver on quality, local service, and long-term support.
Here is our curated list of the top solar installers in Perth.
1. Perth Solar Warehouse
Remaining at the top of our list, Perth Solar Warehouse continues to set the gold standard for West Australian solar. What makes them stand out isn’t just their high volume of 5-star reviews, but their transparency. They treat solar as a long-term relationship, offering a “no-fluff” approach to system design and a heavy focus on aftercare. If you want a company that has the infrastructure to support you long after the installation day, they are the clear frontrunner.
2. Solar2020
A standout for those who prefer a personalised, boutique experience, Solar2020 earns the number two spot. Known for their “solar professionals” approach, they excel at custom-tailored designs rather than “one-size-fits-all” packages. With over a decade of industry experience and a reputation for using premium components like REC and Jinko, Solar 2020 is the go-to for homeowners who want a meticulous installation and direct communication with experts who know Perth’s unique climate.
3. Koala Solar
Koala Solar has maintained an incredible reputation in the Perth metro area for years. They are widely praised for their friendly, local service and consistent reliability. They strike a great balance between competitive pricing and high-quality workmanship, making them a safe and popular choice for the average family home.
4. Positive Energy
As their name suggests, this company has built a massive following through customer satisfaction. They focus heavily on the “experience” of going solar, ensuring that the transition from your first quote to your first reduced power bill is seamless. Their high ratings across multiple review platforms reflect a deep commitment to getting the job done right the first time.
5. Regen Power
One of the longest-standing names in the WA solar industry, Regen Power brings a level of institutional knowledge that is hard to beat. They handle everything from standard residential roofs to massive commercial projects, giving them a broad range of expertise. Their longevity in the market provides a layer of security that “here today, gone tomorrow” companies simply can’t offer.
6. Westsun Energy
Westsun has built a strong reputation for technical excellence. They are often cited for their professional communication and high standards of electrical work. Whether you are looking for a straightforward solar array or a complex battery-backup system, Westsun’s team has the technical “know-how” to execute it safely and efficiently.
7. Perth Solar Force
A major player in the local market, Perth Solar Force is known for its efficiency and scale. They have a massive presence in WA, which allows them to offer great value and quick turnaround times. They are a solid choice for homeowners looking for a well-established brand with a proven track record of thousands of successful installs.
How to Choose Your Best Match
While these companies represent the “best of the best,” the right choice for your home depends on a few simple factors. Here is the Your Energy Answers checklist for a stress-free solar journey:
Look for “Real” Local Presence: Ensure the company has a physical office and warehouse in Perth. Aftercare is about logistics; if a part fails, you want an installer who can drive to your house, not a call centre in another state.
Prioritise the Warranty Process: Every company promises a 10 or 25-year warranty. The real question is: “If my inverter stops working, who do I call, and how long until someone shows up?” Choose companies that handle their own warranty claims rather than referring you to the manufacturer.
Battery Readiness: Even if you aren’t buying a battery today, make sure your system is “Battery Ready.” Ask your installer to show you exactly how a Tesla Powerwall or Sigen system would integrate into your setup later.
Check the “Bottom” Reviews: Don’t just look at the 5-star ratings. Read the 1 and 2-star reviews to see how the company responds when things go wrong. A company that takes responsibility and fixes mistakes is far better than one that ignores them.
The Verdict
Perth is one of the best places in the world for solar energy, but the “best” system is only as good as the person who installs it. By choosing a high-performing local leader like Perth Solar Warehouse or Solar 2020, you aren’t just buying panels—you’re buying peace of mind for the next two decades.
