Plumbers in Central Coast

Central Coast Council does. Building Commission NSW is the state's plumbing regulator under the Plumbing and Drainage Act 2011, with the Plumbing Code of Australia as the technical standard, but its inspection area does not extend to the Central Coast — NSW's own local-regulators page places the coast outside it and names the council as the local plumbing regulator. That is unusual even within NSW: Newcastle and Wollongong councils both declined the delegation, so their inspections stay with Building Commission NSW, while Lake Macquarie and Cessnock councils took it on. It means the inspecting authority behind a Central Coast plumbing job is the council, not the state body.

Only if they also hold the plumbing licence. Home Building Regulation 2014 cl 15(1) puts a condition on every contractor licence in a building category: the holder "must not do any specialist work involved, and must instead enter into a subcontract with the holder of a contractor licence in the relevant category of specialist work", unless that same holder is licensed in the specialist category too. A parallel rule in cl 16(1) applies to supervisor certificates. So a builder can contract for the whole bathroom, but the plumbing inside it has to be done by someone licensed for plumbing — worth asking who that subcontractor is, and checking their licence separately.

It is a separate category, so it has to be confirmed rather than assumed. The Home Building Regulation 2014 lists plumbing work, draining work, water plumbing work, gasfitting work and LP gasfitting work as distinct specialist categories, and the Act borrows the definition of gasfitting work from the Gas Supply Act 1996 rather than defining it itself. The register returns the categories a licence actually authorises, which is the field to read: ask for the licence number, look up the classes it carries, and check that the gas side is among them before the job starts.

The Notice of Work is lodged before work starts and sets out the plumbing and drainage work to be done and who is doing it. The Certificate of Compliance is lodged at completion or before final inspection; it confirms the work complies with the Act, the Regulation, the Plumbing Code of Australia and the deemed-to-satisfy requirements of AS/NZS 3500, and — the part that matters later — it "identifies the plumber or drainer as the responsible person for that work". A copy goes to the owner or builder. Not every job needs a Notice of Work: emergency work, small jobs such as replacing a tap or hot water system, and bathroom renovations that do not move the fixtures are outside it. NSW publishes no deadline in days for either document.

Not all of them. Section 6(2) of the Home Building Act 1989 switches off the contract-formalities provisions — ss 7, 7AAA, 7AA, 7B and 7BA — where the work has to be done promptly because delay would otherwise create "a hazard to the health or safety of any person or to the public or … damage to property", and complying with those sections is not reasonably possible in the time available. What does not switch off is the licensing requirement, or the 10% cap on deposits in s 8, which carries no threshold and no emergency carve-out. So an after-hours burst pipe can be attended without a signed contract in hand; it cannot be attended by an unlicensed contractor.