The Installer Matters as Much as the Equipment
Most people spend hours comparing solar panels and battery brands before they get a quote. Far fewer spend the same amount of time checking the company doing the installation. Knowing how to choose a solar installer matters just as much as the equipment on your roof.
That is worth reversing. A quality product installed poorly will underperform. A quality install of solid mid-to-premium equipment will outperform a premium product put in by the wrong hands. And when something needs attention five years down the track, it is your installer, not the manufacturer, who you will call first.
Here is what to look for when choosing a solar installer in Perth, and the signs that should make you think twice.
SAA Accreditation — and What It Actually Means
Solar Accreditation Australia (SAA) is the current national accreditation body for solar installers. It replaced the Clean Energy Council’s accreditation program in 2024, with CEC installer accreditation formally ending in May 2024.
Individual installers hold their own SAA accreditation, in addition to the business entity. Any installer who cannot provide their SAA accreditation number on the spot is a concern. You can verify accreditation directly on the SAA register at saaustralia.com.au.
This matters for your rebate. Only SAA-accredited installers can create the Small-scale Technology Certificates (STCs) that fund the federal point-of-sale discount on solar and battery systems. An unaccredited installation means no rebate.
NETCC (New Energy Tech Consumer Code) approval is a further credential worth looking for. It shows the company has been independently vetted as a solar retailer, on top of the individual installer accreditation.
It is the Company’s Standards That Matter, Not Whether They Use Their Own Crew
A common piece of advice is to favour installers who use their own in-house employees over those who use subcontractors. The reality is more nuanced.
Many of the best solar companies in Perth, including those with consistently top-rated customer reviews, work with carefully selected installation partners, chosen specifically because they meet higher standards. The quality of the outcome depends on who the company chooses to work with, how they vet those partners, and what accountability exists when something is not right.
The right question is not “do you use your own staff?” It is: “how do you select and manage your installation partners, and what happens if something is not done to standard?”
Quality installation partnerships also show up in pricing. A quote that comes in significantly below others is not usually a better deal. It is a signal that something in the chain has been cheapened. Solar and battery is a long-term investment. The cost of a substandard install compounds over time.
Workmanship Warranty and System-Wide Cover — Two Different Things
Most people focus on panel and battery product warranties. Equally important are the warranties the installer puts on their own work.
Workmanship warranty covers the physical installation: mounting, wiring, roof penetrations, conduit, switchboard connections. This is the installer’s commitment to their own work, separate from any product warranty.
System-wide cover extends to the balance-of-system components, such as the inverter, isolators, cabling, and monitoring hardware, that sit outside the main panel and battery product warranties. These are the components most likely to need attention in the early years if anything goes wrong.
Ask for both in writing before you sign, and check the process for making a claim. A warranty that exists only as a verbal assurance is not a warranty.
After-Sales Support — Who Do You Call When Something Goes Wrong?
The solar industry has a well-documented problem with installers who disappear after the job is done. Companies that have grown quickly, relied on volume, or have thin margins often lack the resources to support customers properly after installation.
Ask directly: do you have a dedicated after-sales support program, or do I contact the manufacturer if there is a problem? The answer tells you a lot.
A genuine after-sales program looks like this: proactive system monitoring so issues get identified before they become problems, a single point of contact for warranty and performance queries, and a team that manages the manufacturer relationship on your behalf rather than leaving you to navigate it alone.
Perth has specific considerations here. WA’s grid rules and monitoring requirements under CSIP-AUS mean your system needs to maintain communication with Western Power’s network. You want an after-sales partner who understands local requirements, not a national support team unfamiliar with WA’s regulatory environment.
WA-Specific Knowledge: Not All Installers Understand the Perth Market
Western Australia operates a separate electricity market to the rest of the country. Western Power and Synergy manage the South West Interconnected System (SWIS), not the NEM operators. This means WA has its own export rules, tariff structures, rebate programs, and grid connection requirements.
A generic national installer quoting in Perth may not understand:
- Synergy’s export limits and the DEBS structure: the Distributed Energy Buyback Scheme pays different rates for peak and off-peak export, and export limits apply per property.
- CSIP-AUS compliance: new solar and battery installations must maintain smart inverter communication with Western Power’s network, under rules that came into effect in 2026.
- The WA Residential Battery Scheme: a $1,300 rebate for SSL-enrolled batteries, with specific eligibility and VPP enrolment requirements.
- The Cheaper Home Batteries Program in a WA context: how CHBP rebates interact with WA-specific STC deeming periods, and what current values actually are.
These details matter when your system is being designed and quoted. An installer who gets them wrong will design a system that does not fully capture available savings or rebates.
“Tier 1” Means Nothing — Here is What Does
“Tier 1” is a financing classification originally developed by Bloomberg New Energy Finance to assess manufacturer bankability for project finance. It has nothing to do with product quality, reliability, or after-sales support. A Tier 1 panel can still fail. A Tier 1 manufacturer can still have poor Australian support.
What actually matters when evaluating the brands an installer works with:
- How long have they been operating in Australia? A brand with a decade-plus track record in the Australian market has proven local viability. Parts are available. Service teams exist.
- Do they have a meaningful Australian presence? Local warehousing, local technical support, and Australian-based warranty processing make a real difference when you need help. A brand that is technically available in Australia but effectively managed from overseas is a different proposition.
- What is their after-sales reputation locally? Check reviews specifically about warranty claims and support responsiveness, as well as initial product performance.
- Are they genuinely new to Australia, or just new to you? Some brands are recent arrivals but have invested heavily in establishing Australian operations. Others have been listed locally for years but remain effectively offshore businesses. The distinction matters.
An installer who works exclusively with mid-to-premium products, and can explain why they have chosen each brand in their range, is a better sign than one offering whatever is lowest at the time.
Best Practice Installs: What Quality Looks Like
The difference between a quality installation and a poor one is not always obvious when you watch it happen or see photos on the day. It shows up later.
Signs of a best practice installation:
- Clean cable management: cables routed neatly, secured properly, not draped across the roof or left loose in the roof cavity.
- Correct rail sizing and mounting: rail systems chosen and positioned for the actual roof type, pitch, and panel weight, not a one-size-fits-all approach.
- Proper roof penetration sealing: any penetrations through the roof sealed to stop water ingress. This is one of the most common sources of long-term problems from rushed installations.
- Switchboard work done to standard: clean labelling, appropriate isolators, connections made correctly with no improvised workarounds.
- Commissioning and system handover: the system gets tested, monitoring is set up and confirmed working, and you are walked through how to read your data before the installer leaves.
If a quote does not mention installation methodology and gives you no information about how the job will be done, ask. A company confident in its work is happy to explain it.
Rebate Management: Does the Installer Handle It or Leave It to You?
Perth homeowners installing solar and battery in 2026 have access to a meaningful stack of rebates: the federal Cheaper Home Batteries Program (CHBP) applied at point of sale, the WA Residential Battery Scheme ($1,300 for eligible SSL-enrolled batteries), and Plenti no-interest finance for eligible households.
Ask your installer: do you handle the CHBP point-of-sale discount and WA Battery Scheme enrolment as part of the installation, or do I need to manage that separately?
A company that manages rebate administration as part of the process removes the risk of missing out because of a paperwork error or missed deadline. A company that leaves it to you to navigate is asking you to take on unnecessary complexity.
The Positive Energy Solutions Difference
Positive Energy Solutions has been installing solar and battery systems in Perth for years, built on a simple principle: do the job properly, support the customer properly, and the reputation looks after itself. The results speak for that approach.
Beyond the awards, what sets Positive Energy Solutions apart in the Perth market:
- Local Perth company: based in Osborne Park, with a showroom you can walk into, talk to someone who knows the WA market, and see equipment in person before you commit.
- Old school customer service: a team that answers the phone, follows up, and treats every installation as if the reputation depends on it — because it does.
- Industry experience: consultants and installation partners with years of hands-on Perth experience, not a national call centre processing enquiries.
- Mid-to-premium products only: Positive Energy Solutions works with Tesla, Sungrow, SigEnergy, Fronius, and iStore — all chosen for Australian track record, local support, and system performance.
- Omnidian after-sales: dedicated after-sales support through Omnidian, providing proactive monitoring and a single point of contact for the life of your system.
- 10-year installation workmanship warranty, in writing, covering the installation — plus manufacturer product warranties, with Positive Energy Solutions as your single point of contact.
- Full rebate management: CHBP point-of-sale discount, WA Battery Scheme enrolment, and Plenti finance options all handled as part of the process.
What to Look For: Your Solar Installer Checklist
Request Your Quote From Positive Energy Solutions
Positive Energy Solutions provides tailored solar and battery quotes for Perth homes — designed around your usage, your roof, and the rebates you are eligible for. Visit the showroom in Osborne Park, call the team, or submit an enquiry online.
- Why Getting a Battery With Your Solar Makes More Sense Than Adding One Later — /solar-battery-together-perth-2026
- What Is the Cheaper Home Batteries Program and How Does It Work in Perth? — /lower-cost-home-batteries-program-perth-2026
- Is a Solar Battery Worth It in Perth? — /is-solar-battery-worth-it-perth-2026
- How to Choose a Solar Battery in Perth — /how-to-choose-solar-battery-perth
- WA Solar Battery Rules 2026 — /wa-solar-battery-rules-2026
Related guides
- Award-Winning Solar Installer in Perth: How Positive Energy Earned Its Reputation
- EUPD Research Top PV Installer Award Perth: Why Positive Energy Solutions Was Recognised
- PES Is a Tesla Certified Installer in Perth: What That Means for Your Powerwall 3
- Before Your Solar Is Installed in Perth: What to Expect From Sign-Off to Installation Day
Frequently Asked Questions
How do I verify SAA accreditation?
Go to saaustralia.com.au and search for the installer by name or accreditation number. Individual installers hold SAA accreditation. The person who will actually do the work should be accredited, not just the company brand name.
Is the lowest-cost solar quote worth considering?
Not if it is significantly below the market rate. Solar and battery installation involves electrical work on your home, grid connection compliance, and long-term performance. Companies that undercut meaningfully are typically doing so by using lower-cost equipment, faster installs with less care, or lower-quality installation partners. Get at least three quotes, and be sceptical of any that stand out at the low end.
What is the difference between a solar retailer and a solar installer?
A solar retailer is the company you sign the contract with. They design and sell the system. A solar installer is the accredited tradesperson who physically installs it. In some cases these are the same company. In others, the retailer manages the process and uses installation partners. Both the retailer (NETCC, New Energy Tech Consumer Code approval) and the individual installer (SAA accreditation) should hold relevant credentials.
Do I need to be home during the installation?
For most residential installations, yes — at least for part of the day. The installer will need switchboard access, and someone should be present for the final commissioning walkthrough so you understand how to use the monitoring system and what to expect from your system’s performance.
How long does a solar and battery installation take in Perth?
A standard solar-only installation typically takes one day. A combined solar and battery installation generally takes one to two days depending on system size and switchboard complexity. Your installer should give you a clear timeline at the time of quoting.
About the Author
Jason Wiktorowicz
Sales Manager, Positive Energy Solutions | Perth, WA
Jason has been at the centre of Western Australia’s energy transition for over a decade. As Orchestration Lead on Project Symphony — WA’s largest virtual power plant pilot — and Stream Lead on Project Encore, he worked directly with AEMO, Western Power and Energy Policy WA to shape how distributed energy resources connect and operate on the SWIS. That work included developing and rolling out CSIP-AUS, now mandatory for all new WA grid connections. He also led Emergency Solar Management (ESM), the first program of its kind in WA, VPP for Schools (VPP4S), which provided direct market benefits through Supplementary Reserve Capacity, and REBAR, the WA Residential Battery Rebate scheme.
His earlier career spanned Synergy, Infinite Energy and Curtin University’s Sustainability Policy Institute, where he co-authored peer-reviewed research on net-zero urban precincts, solar integration and peer-to-peer energy trading, published in the journal Urban Planning in 2018.
At Positive Energy Solutions, Jason leads sales with a focus on system design accuracy and long-term performance. Positive Energy Solutions installs solar and battery systems, EV chargers and heat pumps, and holds partner accreditations with Fronius, SigEnergy, iStore and SunPower. Connect with him on LinkedIn.
