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Can you do DIY Plumbing in Australia?

Leaking tap? Before you run off to get your tools and learn from a Youtuber to fix the leak, did you know that in Australia, it is illegal to do DIY plumbing work? Plumbing is a complex job and if you do not have the technical skills to resolve the root cause of the job, you can not only get fined but also end up shelling out money to fix your ‘repairs’. It might seem cheaper to do small plumbing jobs yourself but in the long run, you may be putting yourself at risk of a big mess! So save your time and call a licensed plumber to fix that leaking tap.

DIY plumbing is risky and ILLEGAL

Plumbing, electrical, and gas fitting work done by DIY-ers are against the law. It may seem cool to do the job yourself and save money in the process but unqualified persons may cause more harm than good. As a DIYer, you may be unaware of the health, legal and safety risks associated with plumbing or other trade works. Every state has its own building laws and if plumbing work is found to have been done by an unlicensed person, you may get a minimum fine of $32,000 under the Plumbing and Drainage Act 2018. DIY plumbing jobs are not hard to find – posting a photo on your social media platform can land you in hot water. And if your plumbers notice a DIY job, they can also report you for carrying out unlicensed plumbing work in your home. When you hire a licensed plumber, they provide you with a compliance certificate and their work will be covered by insurance. However, any damage caused by a DIY job will often void your insurance and cost you thousands of dollars to get rectified. When you want to sell your home, faulty work discovered in the pre-purchase building inspection will have to be fixed at your own expense by a licensed plumber. Also, if you install your hot water system, dishwasher plumbing or any other appliance yourself, it may void the product warranty.

Do NOT attempt these DIY plumbing jobs

  • Flexi hoses are one of the most common DIY fails – if you install it yourself, you may be sitting on top of a ticking time bomb
  • Any work conducted on a hot water system can put you at the risk of electrical shock, fire, leaks and voided warranty.
  • Cleared blocked drains without specialised equipment will often not remove the root cause of the blocked drains and the problem might become bigger than before.
  • Any work related to the drinking water system or sewerage systems requires licensed plumbers so avoid attempting it yourself

What plumbing works can you do?

According to the QBCC, unlicensed persons can perform the following plumbing works:


  • Changing a showerhead
  • Replacing a jumper valve or washer in a tap (fixing a leaking tap)
  • Replacing a drop valve washer, float valve washer or suction cup rubber in a water closet cistern
  • Installing or maintaining an irrigation watering system downstream from an isolating valve, tap or backflow prevention device on the supply pipe for the irrigation or lawn watering system

Sanitary Plumbing and Drainage

  • Cleaning or maintaining ground-level grates to traps on sanitary drains
  • Replacing caps to ground-level inspection opening on sanitary drains
  • Maintaining an above or below ground irrigation system to dispose of effluent from an onsite sewerage facility


  • Fire protection work for testing plumbing carried out by a holder of a ‘Fire Protection Occupational License’ or another QBCC license holder
  • Incidental Skilled Tasks like excavation or backfilling a trench

All other works must be carried out by a licensed and qualified plumber.

Get the right people to do the job

The moral of the story – hire a licensed plumber for any problem. Before you hire a plumber, make sure you check the following:

  • Are they licensed with the QBCC?
  • Are they qualified and experienced to resolve your plumbing problems?
  • Are they insured?
  • Check reviews on social media platforms

Our Brisbane plumbers are licensed, highly qualified, experienced and insured. From blocked drains to hot water repairspipe relining to gas installation, we can help you with any plumbing work. We are available 24 hours, 7 days a week servicing Brisbane, Logan and Redland Bay. For peace of mind and compliance with Australian standards and laws, contact Brisbane Plumbing and Drainage today.