Lead-free taps Victoria 2026: what changed at home

Five months ago, on 1 May 2026, Victoria began applying a rule the national code does not require everywhere until 2028. Any brass or bronze plumbing product installed on a drinking water supply in Victoria now has to be lead free: no more than 0.25 per cent lead, measured as a weighted average, and marked with the Lead Free WaterMark.

For people in old houses, the rule is about what gets installed from that date. The state government's own announcement said most existing products "are safe to keep using". What changes is the tap, valve or hot water unit that goes in next.

What the rule says

The requirement is clause A5G4 of the Plumbing Code of Australia, part of the National Construction Code. The code defines lead free as a plumbing product or material in contact with drinking water that has "a weighted average lead content of not more than 0.25%". It applies to copper alloys, which in plumbing means brass and bronze.

Victoria's plumbing regulator, the Building and Plumbing Commission, says the requirement applies in Victoria from 1 May 2026 "following the Government's decision to adopt them", and that it means "only WaterMark-certified lead-free products can be installed in systems supplying drinking water." The date that counts is when the plumbing work starts: "Even if building permits or contracts were issued before 1 May 2026, the critical compliance date is tied to the commencement of plumbing work, not design or approval dates."

The regulator's list of affected products includes taps and mixers, water heaters, tempering and thermostatic mixing valves, backflow prevention devices, flexible hose assemblies and boiling and chilled water dispensers. The Australian Building Codes Board lists exemptions, including shower heads, shower mixer taps, washing machines and dishwashers, because they "do not have regular contact with drinking water, are not intended for drinking water use, or are excluded in line with international standards".

Victoria went first

Nationally, the Australian Building Codes Board set 1 May 2026 as the date after which only lead-free copper alloy products can be certified and manufactured. In December 2025 it extended the installation deadline: plumbers elsewhere "may continue to install existing WaterMark products until 30 April 2028", so that suppliers can sell down their stock. The board notes that each state and territory enforces the code and "may vary transition arrangements, including transition dates".

Victoria chose not to wait. Announcing the change on 30 March 2026, the Premier's office said Victoria would be "the first state in Australia to mandate lead-free plumbing products in new buildings". The Minister for Housing and Building, Harriet Shing, said: "This Australian-first requirement puts safety and better practice at the heart of every new build in Victoria."

The same release was careful about existing plumbing: "Most existing products already comply and are safe to keep using, however the new limit goes further by making sure families have safe drinking water."

Where lead comes from in an old house

Lead pipes are not the usual worry in Australia. The national environmental health committee, enHealth, says "it is unusual to find drinking water service pipes containing lead in Australia".

The lead that matters is in fittings and joints. enHealth's guidance says lead "is still used in the manufacture of a range of plumbing products, such as brass fittings", and that "some older homes and buildings may still have old copper pipes with lead-based solder", which licensed plumbers are no longer allowed to use. Lead can dissolve into water that has sat against brass for a long time. Hot water systems can carry more dissolved metal than cold, and the slight acidity of rainwater can make tank water more corrosive to plumbing.

enHealth also says town drinking water supplied to homes "is known to be safe", and that in Australia elevated blood lead levels "are rarely found to be related to lead exposure from drinking water". The group it singles out is infants fed formula made with contaminated water, because of how much water they take in for their size.

What enHealth suggests at home

The committee's advice for householders is short:

• Use water from cold taps only for drinking and cooking.
• Run the cold taps used for drinking and cooking for at least 10 seconds first thing in the morning.
• After more than 48 hours without use, such as coming home from holidays, run them for at least 2 minutes. That water can be collected and used for washing up.

It says there is generally no need to have household water tested for lead, and that new work should use components certified to WaterMark and AS/NZS 4020 with low lead content or none. In Victoria, since May, the last part is the rule.

If you are renovating

Plumbing work in Victoria has to be done by a licensed plumber, or by a registered plumber or trainee working under a licensed plumber's supervision, according to the Building and Plumbing Commission, which keeps a public directory of both. The Building Codes Board's WaterMark product database lets anyone check whether a product is certified and meets the lead-free requirement.

If a hot water system is part of the work, Victoria's rebate may help: see repair or replace.