The exact questions to ask before signing with a solar installer, so you avoid subcontracted installs, poor workmanship, and warranty headaches.
1. Are They Licensed Electrical Contractors?
Solar systems involve serious electrical work. Confirm the company employs its own licensed, Level 2 accredited electricians rather than acting purely as a sales business.
2. Who Actually Installs the System?
Ask directly whether the company subcontracts installation. Many well-marketed solar companies sell the job then hand it to the lowest-bidding subcontractor — this is where quality control breaks down.
3. What's Their Google Review History Like?
Look beyond the star rating to review volume, recency, and how the company responds to any negative feedback.
4. What Panel and Inverter Brands Do They Use?
Confirm the brands are on the Tier-1 manufacturer list and ask about local warranty support — a great product with no local backing is a real risk.
5. How Do They Size the System?
A reputable installer will assess your actual usage and roof, not just sell you the biggest system that fits your roof space.
6. What's Included in the Price?
Ask for an itemised quote covering panels, inverter, mounting, cabling, switchboard work, and any structural assessment — vague, bundled pricing often hides corners being cut.
7. What Happens If Something Goes Wrong?
Ask who you call for warranty support in five years' time, and confirm the company will still be around and accountable.
8. Do They Handle Compliance and Grid Connection?
Confirm the installer manages your DNSP grid connection application and compliance certificate as part of the job.
9. Can They Show Local Work?
Ask for examples of recent installs in your suburb or similar properties — a company with genuine local experience will have plenty to show.
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