How to Choose a Plumber in Australia (and What to Ask Before They Arrive)

A good plumber in Australia is licensed in your state, gives you a written quote before starting, and tells you the call-out fee before they get in the van. That is the whole test. Everything below is about how to check those three things quickly, whether you have water pouring through the ceiling right now or you are planning a hot water system replacement next month.

TL;DR

If it is an emergency, turn the water off at the meter first, then ring around. Ask every plumber for their licence number and their after-hours call-out fee and minimum charge before you say yes. For planned work, check the licence on your state regulator's website, get three written quotes, and make sure gas work is done by someone with a gas licence. Renters go through the property manager, not straight to a plumber. If it goes wrong, your state's fair trading body is where you complain.

If it is an emergency, do this first

Find your water meter. It is usually near the front boundary under a small plastic or metal lid, or on the wall of a unit block. Turn the tap or lever on the house side clockwise until it stops. That cuts water to the whole property and turns a flood into a puddle. Do it before you pick up the phone.

If water is near power points or light fittings, switch off the electricity at the switchboard too. Then ring a plumber.

What counts as a true emergency

Not every plumbing problem needs someone at 9pm on a Sunday. A burst pipe you cannot isolate, sewage backing up into the house, a gas smell, or no water at all to a home with kids or someone elderly: those are emergencies. A dripping tap, a slow drain or a running toilet are not, and after-hours rates for them is money you will not get back.

If the water is off at the meter and nothing is getting worse, ask whether it can wait until morning. Often it can, and the same plumber charges a lot less at 8am.

What to ask before you say yes

Before you agree to anything, ask these in order and write the answers down.

1. What is your licence number? A legitimate plumber will give it to you without hesitation. If they get cagey, ring the next one.
2. What is the after-hours call-out fee? This is a flat amount you pay for them to turn up, whether or not they fix anything.
3. Is there a minimum charge, and how many hours or minutes does it cover?
4. What is the hourly rate after that, and is it charged in 15 minute blocks or by the hour?
5. Do you charge for travel time?
6. When will you actually arrive?

They cannot quote the whole job over the phone because they have not seen it. They can tell you what walking through the door costs. If they will not, that is your answer.

Planned work: check the licence first

Plumbing is licensed work in every state and territory, and the check takes about two minutes. Do it before you ring anyone for a quote.

• Queensland: search the licensee register on the QBCC website.
• New South Wales: use the NSW Government's Verify a licence tool.
• Victoria: plumbers must be registered or licensed with the Victorian Building Authority (VBA). Search for "VBA find a practitioner" and check the name and registration number match what the plumber told you. Note the difference between a registered plumber (can work under supervision) and a licensed plumber (can sign off on their own work and issue compliance certificates).
• Western Australia: search the Plumbers Licensing Board licence register on the WA Department of Commerce site.
• SA, Tasmania, ACT and NT each have their own licensing body. Search your state name plus "plumber licence check" and use the government site.

Check the name on the licence matches the person or company quoting. A mate's licence does not cover the person in your bathroom.

Get three written quotes, and know what you are looking at

For anything beyond a simple repair, get three quotes in writing. Not because the cheapest wins, but because three quotes show you what the job should roughly cost and which plumber actually understood it.

Know the difference between a quote and an estimate. A quote is a fixed price for a defined scope of work. An estimate is a guess, and the final bill can move. Ask which one you are holding.

A good written quote lists:

• The plumber's name, licence number and ABN
• Exactly what work is being done, in plain terms
• Materials and fittings, including the brand and model of anything major like a hot water unit
• Labour, either as a fixed amount or an hourly rate with an expected number of hours
• What is not included (concrete cutting, tiling, electrical work, council fees)
• Payment terms and when a deposit is due
• How long the quote is valid for

If a quote is one line with a total on it, ask for the breakdown so you can compare it with the other two.

Gas work needs a gas licence

In most states, gas fitting is a separate licence from plumbing. Some plumbers hold both, some only one. If the job touches a gas hot water unit, a gas cooktop or any gas line, ask: "Are you licensed for gas fitting in this state?" and check that licence the same way.

Unlicensed gas work is dangerous and can void your home insurance. A plumber without the gas licence might still offer to do it because "it's only a small job". Do not let them.

The big one: replacing a hot water system

Hot water replacement is the most common large plumbing job in Australian homes, and it usually happens in a hurry because the old unit has died. Worth asking even when you are cold and cranky:

• What type are you recommending, and why? Electric storage, gas storage, gas continuous flow, heat pump and solar all suit different homes and different bills. The Australian Government's hot water systems guide explains the options without trying to sell you one.
• What is the energy rating of the unit you are quoting?
• Are there any state or federal rebates for a more efficient unit? Rebates change often and vary by state, so ask the plumber and check the current scheme yourself before you decide.
• Does the price include removal and disposal of the old unit?
• Will you need an electrician as well? Some heat pump and electric installs do, and that is a separate licence and a separate cost.

Drains, blockages and camera inspections

For a recurring blocked drain, a plumber may suggest a CCTV camera inspection. A small camera goes down the pipe and shows what is going on: tree roots, a collapsed section, a build-up of grease. It costs more than a quick machine clear, but it stops you paying for the same clear every six months. Ask to see the footage.

If the camera finds a broken pipe, treat the repair as a new job. Written quote first, and three of them if the number is large.

Warranty on the work

Ask what warranty the plumber gives on their labour, separate from the manufacturer's warranty on parts, and get it in writing on the quote or invoice. Some states require a compliance certificate for certain work. Keep your copy with the house paperwork.

Renters: go through your property manager

If you rent, your first call for anything short of a life-safety emergency is the property manager or landlord, not a plumber. They have their own tradies and they carry the cost of repairs that are not your fault. Arrange a plumber yourself without permission and you can end up paying for it.

For a genuine emergency, most leases and state tenancy rules let you organise urgent repairs if you cannot reach the property manager, up to a limit. Check your lease and your state's tenancy authority before you spend your own money.

Red flags

• No licence number, or a number that does not match on the register
• Cash only, or a big discount for cash
• Pressure to replace a whole unit or system when you asked about a repair
• No written quote, or refusing to break a quote down
• A price quoted before anyone has looked at the job
• Turning up in an unmarked van with no business name or ABN on the paperwork
• Asking for full payment up front

One of these is a reason to pause. Two is a reason to ring someone else.

If it goes wrong

Start with the plumber. Put the complaint in writing, say what you want fixed, and give them reasonable time to respond. Most disputes end there.

If they do not fix it, go to your state's consumer body. In NSW that is NSW Fair Trading. In Queensland, QBCC handles complaints about licensed plumbing work. In Victoria it is Consumer Affairs Victoria for the contract side and the VBA for the technical side. In WA, Consumer Protection and the Plumbers Licensing Board. Keep every quote, invoice, photo and text message. That paper trail decides these things.

We covered the general version of this in our guide on how to choose a tradie in Australia, and the electrical equivalent in how to choose an electrician.

Finding a plumber near you

Every plumber on The Local List is verified against the Australian Business Register, and listings show phone, hours and reviews so you ring the right person first time. Start with plumbers across Australia, or go straight to plumbers in Victoria. Many plumbers also install and service split systems, so if that is what you are after, the air conditioning category is worth a look too.

Or just search by your suburb and see who is close.