Plumbing courses in Australia: Cert III, costs and where to study

The qualification: Certificate III in Plumbing (CPC32420)

The national qualification for plumbers is the Certificate III in Plumbing, code CPC32420. It is listed as current on training.gov.au as at September 2026 (it replaced the older CPC32413). If a provider is advertising an older code, ask why.

The apprenticeship normally runs 4 years. It is competency based, so if you can prove the skills earlier, you can finish earlier. You spend most of your time on the tools with your employer and attend trade school in blocks or on set days, usually one stream at a time: water, sanitary, drainage, gas, roofing and mechanical services.

Heads up: Cert III alone does not make you a licensed plumber. Every state and territory has a plumbing regulator, and after your apprenticeship you register or get licensed with them. More on that below.

What you will actually learn

CPC32420 Certificate III in Plumbing is a big qualification: 58 units minimum, with 43 of them core. That is because a general plumber covers six areas in one trade: water, sanitary, drainage, gas, roofing and mechanical services. Here is what all those units actually mean you will be doing.

• •Start with the safety stuff that keeps you alive: working safely at heights and on roofs, trench support so an excavation never caves in on you, confined spaces awareness and first aid.
• •Get sharp with the basics: reading plans, calculating quantities, marking out, levelling a site, and using every hand and power tool in the ute properly.
• •Cut and join sheet metal, weld poly pipe with fusion gear, run oxy equipment, and fabricate copper and other non-ferrous pressure piping. Old school metalwork skills plumbers still use daily.
• •Water services: set out and rough in complete water lines, connect storage tanks, install pumpsets, and fit backflow prevention devices so dirty water can never siphon back into the drinking supply.
• •Water heating: install and commission gas, electric and solar hot water systems, then adjust the controls and tempering valves so the water comes out safe (CPCPWT3022).
• •Sanitary plumbing: plan the layout of a whole house's waste system, fabricate and install sanitary stacks and discharge pipes, then fit off the toilets, basins and tapware at the end.
• •Drainage: lay below ground sanitary drains to perfect fall, install stormwater and sub-soil drainage, put in inspection openings, clear blockages, and even install on-site wastewater treatment plants for rural properties.
• •Gas fitting: size and install consumer gas piping, purge lines, install flues and ventilation, set up LPG storage, and install and commission Type A gas appliances like cooktops and heaters (CPCPGS3061). This is precise work because the stakes are real.
• •Roof plumbing: fabricate and install roof drainage, gutters and external flashings, flash penetrations through roofs and walls, and collect and store roof water. Pick the roofing stream and you add roof sheeting, wall cladding and complex flashings.
• •Fire services: fabricate and install fire hydrant and hose reel systems, with electives in residential sprinkler systems.
• •Mechanical services stream: steel pressure piping, ducting and air handling units, insulation, and refrigerant handling basics for split systems. This is the path into big commercial plant rooms.
• •Electives on top: irrigation systems, domestic water treatment, sewerage pumpsets and elevated work platforms, depending on what your RTO offers and where your employer's work is.

Year by year: how the training usually runs

Every employer and RTO runs this a bit differently, and the exact stage split varies between states. Completion is competency based too, so a switched-on apprentice with good site experience can finish faster. Treat this as the typical shape of a 4 year plumbing apprenticeship, not a promise.

• •First year: TAFE covers the foundations: safety, tools, materials handling, levelling, reading plans, sheet metal work and basic drainage. On site you are the extra pair of hands: digging and shoring trenches, cutting and running pipe, loading the ute and watching how a job gets set out. By the end you should be trusted with simple tasks solo, like clearing a blocked drain or prepping a rough-in while your tradesperson checks your work.
• •Second year: training moves into the bread and butter: setting out water services, laying below ground sanitary and stormwater drainage, and welding poly and copper pipework. On the job you are roughing in water lines and laying drains to fall with less hovering, and your workbook or profile of on-site evidence starts filling up fast. First full fixture fit-offs usually happen this year.
• •Third year: the technical stuff arrives: gas piping and appliances, hot water systems and their controls, sanitary stack design, roof drainage and flashings. On site you can run a whole rough-in on a house while your licensed plumber signs off the notifiable work, and you start commissioning heaters and appliances under supervision. This is the year it clicks that you actually know the trade.
• •Fourth year: TAFE wraps up the advanced units: backflow prevention, fire hydrant and hose reel systems, Type A gas appliance commissioning and any stream units like roofing or mechanical, plus gap training and final assessments. On the job you are close to running jobs yourself, quoting small works and directing first years. Finish the Cert III and your time, and you can apply for your tradesperson registration or licence with your state regulator. Most states then want CPC40920 Certificate IV in Plumbing and Services before you can get a full licence or contractor licence and sign off your own work, so plan on that extra study if you want your own business.

Before you start: the Cert II pre-apprenticeship

If you have not got an apprenticeship yet, a Certificate II in Plumbing (Pre-apprenticeship) is a solid move. In Victoria, Tasmania and some other states it runs under the Victorian accredited code 22701VIC, which replaced 22569VIC. Other states have their own versions, so search the course name on training.gov.au or ask your local TAFE.

It usually takes around 12 to 16 weeks full time. You learn basic pipework, tools, safety and site skills, and you come out with a White Card and something real to show employers. Plenty of bosses use the pre-app as their tryout for apprentices.

It is not compulsory, and it usually does not shorten your apprenticeship by much, if anything. Its real value is getting you hired. Pre-apprenticeship courses are often free or heavily subsidised: Victoria has run plumbing pre-apps on the Free TAFE list, and Fee-Free TAFE places have covered pre-app courses in other states. Check the live state pages because lists change every year.

How you actually sign up (it is not like uni)

You do not enrol in a plumbing apprenticeship like a uni degree. The order is: first you get hired by a plumber or a group training organisation as an apprentice, then the paperwork follows the job.

Once you are hired, an Apprentice Connect Australia Provider (the free government service that replaced the old Australian Apprenticeship Support Network) does the sign-up with you and your boss. Your training contract gets registered with the state training authority, and you and your employer pick the RTO, which is usually the local TAFE or an industry training centre. Find a provider through apprenticeships.gov.au.

Still at school? Ask about a school-based apprenticeship. You start the Cert III part time in Years 10 to 12, get paid for work days, and convert to full time when you finish school.

What the course costs, state by state

Here is the state of play for apprentice training fees as at September 2026. These change with budgets, so always check the live state page before you count on a number.

• •NSW: fee-free. Apprenticeships funded under Smart and Skilled have no student fees if you commence before 30 June 2027. Check the Skills NSW fee-free apprenticeships page.
• •VIC: subsidised, not free. You pay a Skills First rate per nominal hour plus materials. As a guide, Victoria University lists subsidised tuition of around $7,500 across the whole Cert III plus materials fees, spread over the 4 years. Rates differ between TAFEs, so check yours.
• •QLD: free if you are under 25. Free Apprenticeships for Under 25s covers training fees for priority trades including plumbing for commencements before 30 June 2027. Otherwise fees at TAFE Queensland are about $1.60 per nominal hour, and there is a separate Free Construction Apprenticeships program for over 25s. Check the qld.gov.au pages.
• •WA: capped low fees. Plumbing sits under Lower fees, local skills, with 2026 course fees capped at $400 a year for apprentices under 25 or concession holders, and $1,200 a year otherwise, plus resource fees. Check Jobs and Skills WA.
• •SA: subsidised through Skills SA, with the government paying most of the cost and employers commonly picking up the gap fee. Exact fees depend on units each semester. Check the My Training (Skills SA) site and TAFE SA.
• •TAS: low or no fees. TasTAFE says apprentices under 19 on 1 January are unlikely to pay a tuition fee for that year. Older apprentices should ring TasTAFE for their fee. Fee-Free TAFE in Tasmania covers pre-app courses but not apprentices themselves.
• •ACT: subsidised at CIT. Skills Canberra subsidises skills-shortage apprenticeships and requires a minimum student fee of $350, with a 50 per cent reduction for concession card holders. Check the CIT fees pages for the current plumbing figure.
• •NT: subsidised through a Northern Territory Government funded place at CDU, and some courses have free tuition under the NT Free TAFE priority list. Check CDU fees and payments for the live figure.

Who actually pays the fees

In the states where fees still exist, you often will not pay them yourself anyway. Lots of employers pay apprentice training fees as standard, and group training organisations usually build fees into the deal.

Under the award that covers most plumbing apprentices (the Plumbing and Fire Sprinklers Award), the employer generally has to reimburse your training fees and textbook costs for the apprenticeship, unless they paid the provider up front, as long as you are making satisfactory progress. Check your exact award and clause on the Fair Work website before you sign anything, and sort out who pays fees before day one, not after the invoice lands.

Where you can study it

The main public providers are TAFE NSW, the Victorian TAFEs (for plumbing think Victoria University Polytechnic, Melbourne Polytechnic, Holmesglen and Box Hill), TAFE Queensland, South Metropolitan and North Metropolitan TAFE in WA, TAFE SA, TasTAFE, CIT in Canberra and Charles Darwin University in the NT.

Plumbing also has strong industry-run training centres. PICAC (the Plumbing Industry Climate Action Centre) runs purpose-built plumbing campuses in Victoria and Queensland, and The Service Trades College Australia in Brisbane is backed by the plumbing industry. Master Plumbers associations in several states also run or partner on apprentice training and group training schemes.

To see every RTO approved to deliver the course, search CPC32420 on training.gov.au and open the list of providers, then filter by your state.

Can you do it without an apprenticeship? Basically no

Some trades let you pay full fee and do the Cert III in a classroom. Plumbing is not really one of them. The qualification is built around on-the-job evidence, and most RTOs will only enrol you in CPC32420 if you are employed as a plumbing apprentice.

Even if you found a full-fee institutional course, it would not get you licensed. State regulators require supervised work experience in the trade on top of the qualification before they will register you, and full fees run into serious money: Victoria University lists the non-subsidised Cert III at around $33,000 as at 2026. An apprenticeship pays you while you train and ticks the experience box at the same time.

The exceptions are experienced overseas plumbers coming through a skills assessment and gap training, and qualified tradies from related trades doing recognition of prior learning. If that is you, talk to the regulator in your state first, then an RTO.

After Cert III: the Cert IV and your licence

To work unsupervised, sign off on your own work or run your own show, you register or get licensed with your state plumbing regulator: the Building and Plumbing Commission in Victoria (it took over from the VBA), NSW Fair Trading and Building Commission NSW, the QBCC in Queensland, the Plumbers Licensing Board under Building and Energy in WA, Consumer and Business Services in SA, CBOS in Tasmania, Access Canberra in the ACT, and the Plumbers and Drainers Licensing Board in the NT.

In most states, moving up from registered tradie to licensed plumber or contractor means completing the Certificate IV in Plumbing and Services (CPC40920), or at least specific units from it. Victoria requires prescribed Cert IV units for licensing, and NSW uses it on the path to a Qualified Supervisor Certificate or Endorsed Contractor Licence. Gasfitting is licensed separately in some states too.

You do not need to worry about the Cert IV on day one, but it is worth knowing the ladder: Cert II gets you hired, Cert III plus your apprenticeship makes you a tradesman, Cert IV plus regulator sign-off makes you a licensed plumber who can contract in your own right.

Costs beyond the course fees

Budget for more than tuition. You will need hand tools, and most apprentices build their kit up over the first couple of years. Check your award on the Fair Work site too, because employers must supply or pay allowances for certain tools and protective gear.

Other costs to expect: boots and PPE, textbooks and workbooks the TAFE charges as materials fees, your White Card course, and licence or registration application fees with your state regulator when you finish.

• •Some states and employers offer tool allowances or rebates for apprentices, and these schemes come and go, so search your state training site for apprentice tool support before you buy the big kit.
• •The Australian Government offers support like the Australian Apprenticeship Support Loan and, for eligible apprentices who move for work, Living Away From Home Allowance. Your Apprentice Connect provider sorts the applications.
• •For wages, never rely on a mate's numbers. Apprentice pay rates depend on your award, year level and age. Use the Fair Work pay calculator at calculate.fairwork.gov.au.