Updated October 2026
Killarney Heights sits on a ridge above Middle Harbour, surrounded on most sides by bushland. Homes here are mostly from the 1960s and 70s, many on sloping blocks that fall away toward the reserves. That setting makes for quiet streets and a predictable set of drain problems. Beaches Blocked Drains connects Killarney Heights residents with licensed local drain plumbers.
What causes blockages here
- Bushland roots. Homes backing onto reserves have big trees close to their sewer and stormwater lines.
- Original clay pipe. Sewer lines from the original builds are earthenware with aged joints.
- Sandstone. Pipes laid over shallow rock cannot move with the ground, so they crack.
- Downhill sewer runs. Many lines fall toward the low side of the block or a rear easement, where access is down stairs or through bush.
- Leaf-filled stormwater. Gutters, downpipes and pits collect bark and leaves year round.
How it gets fixed
On these sloping, rocky blocks, the plumbers we refer usually lead with a CCTV drain camera and a locator to find the fault and its depth. Jet blasting clears roots and leaf debris. If the pipe is cracked, pipe relining is usually far cheaper than digging into sandstone on a slope.
Your line, the main and the easement
Sydney Water owns the sewer mains, including those running through easements at the back of many Killarney Heights blocks. You are responsible for your private line up to the connection point. A camera with a locator shows which side of that point the fault sits on.
What it costs
A standard clear typically runs $150 to $400. Tree roots in drains clearing typically runs $250 to $600. Camera and jetting together typically run $350 to $900. Relining typically costs $3,000 to $8,000 or more. You get a price before work starts.
Frequently asked questions
The main runs through our back garden. What if it blocks?
If the blockage is in the Sydney Water main, report it to Sydney Water. If it is in your private line before the connection, it is yours. The camera shows which.
Can relining work through sandstone areas?
Yes. Relining happens inside the existing pipe, so the rock around it is not disturbed. The camera confirms the pipe is a candidate.
How do we reduce leaf blockages?
Gutter guards, leaf diverters on downpipes and regular pit clean-outs make a big difference on bush-edge homes.