Updated October 2026
Clontarf covers the flat southern approach to the peninsula, between Hays Inlet and Bramble Bay, with the Houghton Highway crossing at one edge and the mangroves at the other. Most of the housing is lowset brick and fibro from the 1960s and 70s on generous flat blocks, with townhouses and duplexes filling in along the main roads. Moreton Bay Blocked Drains is a local referral service, connecting Clontarf residents with QBCC-licensed local drain plumbers we work with.
Why Clontarf drains block
Flat ground is the defining issue. Drains rely on fall, and in a suburb this low there is very little of it. Waste and stormwater move slowly, and anything they carry settles rather than being flushed through. Lines silt up over years until a moderate blockage becomes a full stop.
The soil does not help. Clontarf sits on sandy and silty ground close to tidal flats, and fine material washes into stormwater pits and pipes. Near the inlet, the water table sits high enough that groundwater can find its way into cracked pipe, which keeps roots interested and keeps the line damp.
The housing age adds the rest. Homes connected in the 1960s and 70s commonly have clay sewer lines, and the street trees planted when those estates went in are now mature enough to reach them.
What clearing a blocked drain involves
The licensed drain plumbers we work with clear the line, then use a CCTV drain camera to check whether the problem was a one-off or a bellied section holding water. Jet blasting is the right tool for silt and grease because it scours the pipe wall instead of punching through. Pooling in the yard after rain is usually a blocked stormwater job rather than a sewer one.
A standard clear typically costs $150 to $400. A camera inspection runs $249 to $600, or $350 to $900 combined with jetting. Root clearing typically costs $250 to $600. Relining typically costs $3,000 to $8,000 or more. Every plumber quotes before work starts.
Frequently asked questions
The back yard stays wet for days after rain. Is that the drains?
Often it is a blocked or silted stormwater line, sometimes combined with very little fall. A camera inspection shows whether the pipe is blocked, broken or simply too flat.
Why does my drain smell near the gully outside?
A smelly overflow relief gully usually means the main line is partly blocked and close to backing up. The gully is designed to overflow outside before waste comes up indoors, so do not cap it.
Does the high water table affect my pipes?
It can. Groundwater seeps into cracked joints, which keeps the soil around them damp and makes the line a target for roots. A camera shows whether water is entering the pipe.
Drain backing up in Clontarf? Get a fast quote and we will connect you with a QBCC-licensed local drain plumber.