Why a contractor licence is required in NSW - and what it means when someone doesn't have one

The legal position

In NSW, electrical work - which solar and battery installation unambiguously is - may only be contracted by the holder of a contractor licence issued under the Home Building Act. This is separate from an individual electrician's qualification: the licence attaches to the entity you contract with, and it's what authorises them to advertise for, quote, contract and take money for that work.

It exists because electrical contracting done badly kills people and burns houses. The licence brings the operator inside a system of accountability: NSW Fair Trading oversight, insurance requirements, and a defined complaints and rectification pathway.

What unlicensed activity looks like

It isn't just unlicensed people on your roof. Advertising solar installation services, signing customers up, or taking deposits for the work without holding the licence is itself unlawful conduct - which means some of the risk is upstream of installation, in the sales layer. Lead-generation outfits and pop-up sellers who contract in their own name without a licence, then subcontract the physical work, are operating outside the framework even if a licensed electrician eventually appears.

Ask directly: whose name is on my contract, and what is that entity's contractor licence number? Then check it on the NSW Fair Trading public register. It takes two minutes.

What it means for you if you use one

The consequences don't stay with the operator. Contract with an unlicensed entity and you can lose access to the statutory protections the licensing system provides - the defined defect-rectification pathways and insurance arrangements that exist precisely for when things go wrong. Your home insurer may also take a close interest in who performed electrical work if a claim ever touches it.

You may still have Australian Consumer Law rights, but enforcing them against an entity that was willing to trade unlicensed - and may not exist next year - is a very different proposition from a licensed contractor with something to lose.

There's also the rebate dimension: STCs and the battery rebate carry installation and compliance requirements. Non-compliant work puts the paperwork, and potentially the incentives, at risk.

How to protect yourself

Get the contracting entity's name and licence number before signing anything, verify it on the register, and confirm the licence class covers the work. Confirm the installers who attend are SAA-accredited. Keep the compliance documentation you're given at completion - it matters for warranty, insurance and eventual sale of the property.

For transparency: Zero 4 Energy contracts under NSW Contractor Licence 359730C, and every installation is performed by SAA-accredited installers using CEC-approved products. We publish the number precisely so you can check it.