Strata buildings are complicated because so many pipes and drains are shared. When a blocked drain happens, you need to know quickly whether to contact your strata manager or call an emergency plumber.
Yours or the Body Corporate's?
If the blocked drain is inside your unit and only your unit is affected, it is yours to fix. Kitchen grease, bathroom hair, the wrong thing flushed down the toilet. Lot owner responsibility.
If the problem involves shared plumbing rather than something that only serves your unit, the body corporate is generally responsible. That covers sewer lines, drainage stacks, and most floor drains that are wired into the building’s shared infrastructure.
Floor drains catch a lot of people out because the opening is inside your unit, but the pipe underneath it usually tells a very different story. The opening is inside your apartment but the pipe typically travels through the building slab and serves multiple lots. That makes it common property. The Queensland Government’s body corporate maintenance page confirms the body corporate must maintain common infrastructure including shared drainage, and that obligation does not go away because the repair is inconvenient.
What Australian Law Says
The rules may be written under different laws in Queensland and New South Wales, but the general approach is similar. If the plumbing only serves your lot, it is usually your responsibility. If it forms part of a shared system used by multiple residents, it is managed by the body corporate or owners corporation.
NSW Fair Trading’s plumbing guidance adds something important: all drainage work must be carried out by a licensed plumber. No DIY. Non-compliant drain work in a strata building can void your insurance and create problems when you sell. Not worth the risk.
Why Strata Drain Blockages Get Complicated Fast
Shared sewer stacks connect multiple units together. One partial blockage in the wrong place can back up through several apartments before anyone realises what is happening. By the time sewage shows up in a bathroom two floors down, the damage is well and truly done. That is why the Institute of Plumbing Australia recommends regular drain camera inspections in strata buildings. Catching a partial blockage early costs a fraction of what a full sewage backup across multiple units ends up costing.
Need documentation for your body corporate or insurer? Ezy-Plumb provides written fault reports so the responsibility question gets resolved without the back-and-forth.
What to Actually Do Right Now
Your best bet is getting a licensed plumber out with a drain camera to see what’s actually going on. They’ll pinpoint the blockage, find the cause, and hand over a written report. That bit of paper is gold—it proves whether the fix is on you or the Body Corporate, so you have the proof you need either way. Also, don’t just dump random chemicals down the line or sit around hoping the clog magically disappears. In a strata block, that just ruins the pipes and makes the mess worse.
Ezy-Plumb does blocked drain repairs and camera inspections in strata properties across Australia. Call Ezy-Plumb and get a straight answer on what you are dealing with.
FAQs
Q: Who is responsible for a blocked drain in strata?
Ans: Lot owner if it is inside your unit only. Body corporate if it is a shared drain or common property pipe.
Q: Is my floor drain my responsibility?
Ans: Usually not. Floor drain pipes typically run under the slab and serve multiple units, making them common property and the body corporate’s job.
Q: Can I unblock a strata drain myself?
Ans: Not recommended. Drainage work needs a licensed plumber. DIY work in strata can affect your insurance and compliance status.
Q: The body corporate is ignoring my drain complaint. What should I do?
Ans: Put it in writing, escalate to a general meeting, or contact your state’s Fair Trading authority for mediation.
Q: How do plumbers find the exact location of a blockage?
Ans: A drain camera inspection. It shows exactly where the blockage is and what caused it, which matters a lot if a dispute follows.
