Licensed Plumbers in Queensland
licensed plumbers
5 cities · 8 licence classes · Data from Queensland Building and Construction Commission
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Browse licensed plumbers across Queensland's major cities.
QueenslandPlumber Statistics
Breakdown by Licence Class
- Plumbing and Drainage4,925
- Mechanical Services - Plumbing1,223
- Hydraulic Services Design204
- Irrigation141
- Plumbing And Draining Restricted To Plumbing13
- Plumbing And Draining Restricted To Skylight And Ventilator Installation11
- Plumbing And Draining Restricted To Tanks - Water Supply8
- Plumbing And Draining Restricted To Wall Cladding1
Breakdown by Financial Category
- Self Certification - Trade2,664
- No Financials Required1,697
- Self Certification - Builder/Trade1,421
- Category 1323
- Category 2267
- Category 362
- Estimated MR Cat 1-219
- Category 413
- Estimated MR SC113
- Estimated MR SC212
- Category 511
- Category 710
- Category 610
- Estimated MR Cat 3-74
Plumber Licensing in Queensland
Plumbers install, maintain, and repair the water supply, hot water, drainage, gas fitting, and sewerage systems that keep Australian homes and businesses running. From unblocking a kitchen drain to replacing an ageing hot water system or roughing-in pipework for a new bathroom, a licensed plumber ensures every connection meets the Plumbing Code of Australia and relevant state regulations. Homeowners most commonly need a plumber for leaking taps, burst pipes, toilet repairs, hot water unit replacements, and backflow prevention device testing. Because faulty plumbing can cause water damage, health risks from sewage, and even gas leaks, all regulated plumbing work in Australia must be carried out by a licensed professional who can issue a compliance certificate on completion.
Queensland Building and Construction Commission — Regulatory Overview
Queensland Building and Construction Commission is Queensland's principal regulator for the building and construction industry, responsible for licensing all plumbers who perform regulated work in the state. The QBCC issues and renews licences, sets minimum requirements for licensees, investigates complaints, and takes disciplinary action against non-compliant operators.
As of February 2026, Queensland Building and Construction Commission oversees 6,526 licensed plumbers across Queensland, covering 8 licence classes. This represents one of the most comprehensive licensing regimes in Australia, designed to protect consumers and maintain industry standards.
Plumber Licence Types in Queensland
| Licence Type | Description |
|---|---|
| Hydraulic Services Designer | Design of water supply, sanitary and stormwater drainage systems |
| Plumber and Drainer | General plumbing and drainage work including water supply, sanitary plumbing, and stormwater drainage |
| Mechanical Services (Plumbing) | Installation of mechanical plumbing services including heating and cooling piping |
Requirements to Become a Licensed Plumber in Queensland
- Certificate III in Plumbing (CPC32420 or equivalent)
- Completed 4-year apprenticeship
- Plumbing and drainage practical assessment
- Current public liability insurance (minimum $5 million)
- Financial requirements met (no serious financial failures)
Plumber Licence Costs in Queensland
Unlicensed plumbing work in QLD carries fines up to $46,575 for an individual. QBCC can also issue stop-work orders and require rectification of non-compliant work.
Exemptions — Plumber Work You Can Do Without a Licence
- Replacing a tap washer or shower head (like-for-like)
- Clearing a blocked drain using a hand plunger
- Connecting a washing machine or dishwasher to existing outlets
- Minor garden irrigation adjustments not connected to mains
How to Verify a Plumber in Queensland
Verifying a plumber's licence in Queensland is straightforward and should be done before engaging any tradesperson for work. You can use TradieVerify's free search tool to instantly look up any Queenslandplumber by name, licence number, or business name. Alternatively, you can search directly through Queensland Building and Construction Commission at https://www.qbcc.qld.gov.au.
When verifying, confirm: (1) the licence is current and active, (2) the licence class covers the type of work you need, (3) there are no conditions or restrictions on their licence, and (4) there is no disciplinary history. A legitimate plumber will have no hesitation providing their licence number for verification.
How to Hire a Plumber in Queensland
- 1Ask about their backflow prevention accreditation
If you need annual backflow device testing — required by most water authorities — confirm the plumber holds a current backflow prevention accreditation, as not every licensed plumber is endorsed to test and certify these devices.
- 2Check whether they cover both water and drainage
In several states, plumbing and drainage are separate licence classes. A plumber licensed for water supply work may not be licensed for sewer and stormwater drainage, so confirm their licence covers the type of work you need.
- 3Confirm they will issue a compliance certificate
Licensed plumbers are required to lodge a compliance certificate with the relevant authority for regulated work. Ask upfront whether they will provide one — it is your proof the job was done to code.
- 4Ask who supplies the fixtures and fittings
Some plumbers mark up materials significantly. Ask whether you can supply your own WaterMark-certified tapware and fittings, or get a separate materials quote so you can compare retail prices.
- 5Verify they carry specialist tools for your job
Jobs like CCTV drain inspections, pipe relining, or thermostatic mixing valve testing require specialist equipment. Ask whether the plumber owns this gear or will subcontract, as subcontracting can add cost and delay.
Red Flags When Hiring a Plumber
- Refuses to provide a compliance certificate:A licensed plumber is legally required to lodge a compliance certificate for regulated work. Refusal or claims that "it's not necessary for this job" when the work clearly involves new pipework or fixture installation suggests the tradesperson may not be properly licensed.
- No WaterMark-certified products:All plumbing products installed in Australia must carry the WaterMark certification. If a plumber proposes using uncertified imported fittings to save money, the installation will not comply with the Plumbing Code and could void your insurance.
- Cannot explain the drainage plan:For any work involving sewer or stormwater connections, a competent plumber should be able to explain how waste will flow, where vents are located, and how the work ties into existing drains. Vague answers suggest a lack of planning that can lead to blocked drains or failed inspections.
Typical Plumber Costs in Queensland
Common Plumber Jobs & Estimated Costs
| Job | Estimated Cost |
|---|---|
| Fix leaking tap or replace washers | $80 – $200 |
| Install or replace hot water system | $1,200 – $3,500 |
| Unblock drain (standard) | $100 – $350 |
| Replace toilet or cistern | $250 – $600 |
| Install new bathroom tapware | $150 – $400 |
Plumber Complaints & Disputes in Queensland
Queensland Building and Construction Commission (QBCC)
How to Lodge a Complaint
- 1Write to the tradesperson detailing the issue and requesting rectification within a reasonable timeframe (usually 14 days)
- 2If unresolved, lodge a complaint online via the QBCC website or call 139 333
- 3QBCC will assess the complaint and may arrange an inspection
- 4If the complaint is substantiated, QBCC can issue a direction to rectify the work
- 5If the tradesperson fails to comply, QBCC may take disciplinary action or use its insurance fund to cover rectification
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Frequently Asked Questions
What is a compliance certificate and will my plumber provide one?
A compliance certificate (sometimes called a certificate of compliance) is a legal document confirming the plumbing work meets the Plumbing Code of Australia and state regulations. Licensed plumbers are required to lodge one with the relevant authority for regulated work such as new installations, re-routing pipes, or installing a hot water system. Always ask for a copy — without it, you may have difficulty selling your property or making an insurance claim.
How do I know if my hot water system needs replacing or just repairing?
Storage hot water systems typically last 8–12 years, while continuous flow (instantaneous) units can last 15–20 years. Signs it is time to replace rather than repair include rusty water from the hot tap, rumbling or banging noises from the tank, visible corrosion on the unit, water pooling around the base, or if the unit is more than 10 years old and requires a costly part. A licensed plumber can inspect the sacrificial anode and thermostat to give you an honest assessment.
Can a plumber also do gas fitting work?
Many plumbers hold a combined plumbing and gas fitting licence, but this is not automatic. Gas fitting is a separate licence endorsement in most states. If your job involves gas appliance installation or gas pipe work, ask to see proof of a current gas fitting licence or endorsement — do not assume a plumbing licence covers gas.
What licence types are available for plumbers in Queensland?
Queensland offers 3 licence types for plumbers: Hydraulic Services Designer, Plumber and Drainer, Mechanical Services (Plumbing). Each licence class authorises different scopes of work, so check that your plumber's licence covers the specific work you need.
How much does a plumber licence cost in Queensland?
The application fee for a plumber licence in Queensland is $900–$1,500 depending on licence class. Renewal costs $900–$1,500 annually and must be renewed every 1 year.
What plumber work can I do without a licence in Queensland?
In Queensland, some minor plumber tasks are exempt from licensing requirements: Replacing a tap washer or shower head (like-for-like); Clearing a blocked drain using a hand plunger; Connecting a washing machine or dishwasher to existing outlets. Any work beyond these exemptions must be done by a licensed plumber.
How many licensed plumbers are there in Queensland?
As of February 2026, there are 6,526 licensed plumbers registered with Queensland Building and Construction Commission in Queensland. This includes all licence classes: Plumbing and Drainage, Mechanical Services - Plumbing, Hydraulic Services Design, Irrigation.
How do I verify a plumber's licence in Queensland?
You can verify any Queensland plumber's licence using TradieVerify's free search tool or directly through Queensland Building and Construction Commission at https://www.qbcc.qld.gov.au. Enter the plumber's name or licence number to confirm their registration status, licence class, and any disciplinary history.