Role Snapshot

ANZSCO Code: 334113 — Drainer
Role Variants: Drainer, Drainage Plumber, Sanitary Plumber, Stormwater Drainer, Sewer Reticulation Plumber, Civil Drainage Contractor
Parent Category: AU Trades & Construction Roles
Skill Level: 3
Core Skills Occupation List (CSOL): Yes — eligible for TSS 482 visa with an employer sponsor
Skills Assessment Body: TRA (Trades Recognition Australia)

🇳🇿Also available for New ZealandDrainlayer Roles in New ZealandNZQA · Skill Shortage→

In Australia, the Drainer trade (ANZSCO 334113) covers below-ground sanitary and stormwater drainage, sewer reticulation, and connection to mains — distinct from above-ground plumbing in most states, though the exact scope varies by jurisdiction. The rapid construction boom across South East Queensland and coastal NSW is creating significant demand for licensed drainage contractors on both residential subdivisions and civil infrastructure projects. Migrant NZ Drainlayers consistently find the AU market receptive once licensing is resolved, but the NZ-to-AU scope translation requires advance research specific to the target state.

• Excavating and installing below-ground sanitary drainage, stormwater drainage, and sewer reticulation
• Laying drainage pipework, pits, inspection chambers, and connections to public sewer and stormwater mains
• Testing drainage installations for compliance, including CCTV inspections on larger projects
• Completing compliance inspections and drainage certificates as required by state regulation
• Working on subdivision drainage for residential developers and civil contractors
• Installing and maintaining drainage on civil infrastructure projects (roads, schools, commercial buildings)
• Coordinating with plumbers, civil contractors, and local council water/sewer inspection teams

Typical employers: Civil construction contractors (Fulton Hogan AU, Downer Group, John Holland), residential plumbing contractors, local councils (water and sewer operations), state water utilities (Sydney Water, Yarra Valley Water, Urban Utilities QLD, SA Water, Water Corporation WA), large residential developers

Salary Benchmark

Typical Range: $70,000 – $130,000+ AUD per year, depending on state, licence type, and whether work is residential, civil, or utility-sector.

• Licensed drainer (mid-career): $80,000–$108,000
• Senior drainer / site supervisor: $108,000–$130,000+
• Civil drainage (large project): $95,000–$130,000

Source: SEEK AU — Plumber / Drainer Salary | Hays Salary Guide AU 2026 | Data reviewed May 2026

Civil infrastructure premium: Licensed drainers working on large civil projects (infrastructure corridors, water utility contracts, subdivision stages) consistently earn above residential benchmarks. Site supervisors on large drainage projects can reach the upper end of the range.

Cost of living: For an independent comparison, see Numbeo — Australia. TEFI provides clients with a detailed financial planning workbook to model living costs by city and lifestyle — ask Tate for a copy.

Where Demand Is Strongest

• South East Queensland (Brisbane, Gold Coast, Sunshine Coast) — The most active drainage market in Australia right now. The construction boom is driven by population growth and infrastructure investment ahead of the 2032 Brisbane Olympics. QBCC manages licensing and has a clear pathway for overseas-trained drainers.
• Sydney (NSW) — Metro tunnelling projects, residential growth corridors in Western Sydney, and ongoing infrastructure investment create sustained demand. NSW Fair Trading manages licensing.
• Perth (WA) — Rapid suburban expansion in Perth’s outer growth corridors. WA has a history of recognising NZ-trained trades in certain categories — check current mutual recognition provisions specific to drainage/plumbing. Building and Energy WA manages licensing.
• Melbourne (VIC) — Outer growth corridor construction (Werribee, Cranbourne, Mernda) and urban renewal projects. VBA manages licensing.
• Adelaide (SA) — CBD renewal, Northern Connector infrastructure, and residential growth in Adelaide’s northern suburbs. CBS manages licensing. Smaller but consistent market.

Licensing & Professional Registration

Read this section carefully before planning your move. The NZ Drainlayer licence covers a broader scope than the AU Drainer trade classification in most states. TRA assesses what you hold against AU equivalents — there may be scope gaps or category differences depending on the state. Research the target state’s drainage/plumbing licence scope carefully before applying.

Step 1 — TRA Recognition:
Trades Recognition Australia assesses your overseas trade qualification against Australian standards. This is the skills assessment required for visa purposes and is typically a prerequisite for state licence applications. Apply via tradesrecognitionaustralia.gov.au. Allow 6–10 weeks from application to outcome. When preparing your TRA application, clearly document the full scope of your NZ Drainlayer licence — what it covers, what you can sign off on, and your practical experience across residential, civil, and infrastructure drainage.

Step 2 — State Licence:
Each state issues its own licence for drainage/plumbing work. Key bodies:

• Queensland — QBCC (Queensland Building and Construction Commission): Issues drainage and plumbing licences. NZ Drainlayers are often assessed under the drainer classification in QLD, which aligns well with the work most want to do. qbcc.qld.gov.au
• New South Wales — NSW Fair Trading: Plumbing and drainage contractor licence. Scope covers sanitary drainage and stormwater. fairtrading.nsw.gov.au
• Victoria — VBA (Victorian Building Authority): Plumbing licence (drainage stream). vba.vic.gov.au
• Western Australia — Building and Energy WA: Plumbing and drainage licence. Check current WA-specific provisions for NZ-trained tradespeople. demirs.wa.gov.au
• South Australia — CBS (Consumer Business Services SA): Plumbing and gas fitting licence covers draining work. cbs.sa.gov.au

Important scope note: In some AU states, the drainage licence is combined with plumbing; in others it is separate. In most states, the NZ Drainlayer’s broader scope (which often includes some above-floor work in NZ) may not transfer cleanly into the equivalent AU category. Some NZ Drainlayers find their scope recognised under the full plumber classification in a given state; others land in the drainer classification. The outcome depends on the state and the detail of your TRA assessment. Be prepared for this variation and document your full NZ scope thoroughly.

Immigration Pathway

Skills assessment required: Yes — TRA (Trades Recognition Australia) for ANZSCO 334113.

Visa options:

• Temporary Skill Shortage (TSS) Visa — Subclass 482 (Medium-Term Stream) — Employer sponsor required. Duration: up to 4 years.
  Home Affairs — TSS Visa 482
• Skilled Independent Visa — Subclass 189 — Points-based, no sponsor required. Permanent residence directly.
  Home Affairs — Skilled Independent 189
• Skilled Nominated Visa — Subclass 190 — State nomination, points-based, permanent residence.
  Home Affairs — Skilled Nominated 190
• Skilled Work Regional Visa — Subclass 491 — Regional Australia, 5-year temporary visa with PR pathway.
  Home Affairs — Skilled Work Regional 491

Important: TEFI does not provide immigration advice. We recommend working with a registered Australian migration agent. We refer clients to New Zealand Shores — contact Fabien Maisonneuve at Fabien@newzealandshores.com and mention Tate sent you.

Migrant Readiness Signals

• TRA assessment completed or in progress: Your TRA application documents the full scope of your NZ Drainlayer licence — not just the title, but what you can sign off on, the types of drainage you have installed, and your civil vs residential mix
• Target state licence requirements researched: You know which AU state you are targeting and have reviewed that state’s drainage/plumbing licence categories and application pathway for overseas-trained applicants — QLD and WA have the fastest-moving markets right now
• Sewer vs stormwater vs civil drainage scope clearly communicated on CV: AU employers and licensing bodies need to understand the specific drainage types you have worked on — residential sewer reticulation, stormwater drainage, civil infrastructure drainage, and large-scale subdivision staging are all valued but attract different roles
• NZ vs AU scope differences acknowledged: You are aware that your NZ Drainlayer licence scope may not map directly to a single AU licence category and have prepared documentation of your full scope to support both TRA and state licence applications
• Construction boom regions targeted: SE QLD and WA are identified as priority markets — fastest licensing turnaround, highest volume of active drainage work, and genuine employer demand for licensed drainers

Where to Find Roles

• SEEK AU — search: “Drainer”, “Drainage Plumber”, “Sanitary Plumber”, “Sewer Plumber”, “Civil Drainage”. Filter by QLD, NSW, or WA for the highest-volume markets.
• LinkedIn — Useful for connecting with civil construction contractors (Fulton Hogan, Downer Group, John Holland) and residential plumbing groups. Less volume than SEEK for trade roles but good for contractor relationships.
• Trades Jobs Australia — Trade-specific board with drainage and plumbing listings. Useful supplement to SEEK.
• Master Plumbers Australia — Industry association with contractor directory. Useful for identifying licensed contractors actively hiring in your target state.

Direct to employer: State water utilities (Sydney Water, Yarra Valley Water, Urban Utilities QLD, Water Corporation WA) employ drainage tradespeople directly and advertise through their career portals. Civil contractors working on large infrastructure and subdivision projects are often best approached directly rather than through aggregator boards.

A note on cold applications: The drainage trade in Australia is relationship-based at the contractor level. Once you are licensed in your target state, the best pathway is direct contact with civil plumbing and drainage contractors and water utilities rather than volume job board applications. SE QLD in particular has active recruitment at the contractor level that does not always surface on SEEK. If you want to understand how to frame your NZ experience for AU employers, upload your CV for no-cost, practical feedback — Tate typically responds within one business day.

“In New Zealand my Drainlayer licence covered almost everything below the floor slab. In Queensland my scope was assessed as closer to their drainer classification rather than a full plumber — which was fine for the work I wanted to do. Understanding that difference before I arrived meant I wasn’t surprised by the licensing process.”