Updated October 2026
Forestville is a settled suburb of postwar and 1960s homes on the plateau, bordered by Garigal National Park and the bushland falling toward Middle Harbour. Many of the original brick and fibro homes have been extended, and many still have the original sewer line running underneath. Beaches Blocked Drains is a local referral service. We connect you with licensed local drain plumbers who service Forestville.
Why Forestville drains block
Age is the main factor. Earthenware sewer pipe from the original build has now had decades of ground movement, and the joints have opened. Roots from established gardens and the national park edge move in and grow into a mat that catches waste.
Soil adds to it. Parts of the plateau have clay-rich ground that moves with the seasons, and homes on the edges toward the bush can be on steeper, rockier ground where pipes crack instead of bending.
Leaf litter is the stormwater problem. Homes near the park collect bark and leaves in gutters and pits, and a partly blocked stormwater line shows up as overflowing downpipes in heavy rain.
What the plumbers we refer usually do
They start with a CCTV drain camera on any blockage that has happened before. Jet blasting clears roots and leaves. If the camera finds cracked joints, pipe relining seals them without digging up an established garden.
What it costs
A standard clear typically runs $150 to $400. Tree root clearing typically runs $250 to $600. A CCTV inspection typically runs $249 to $600. Relining typically starts around $3,000. The quote comes before any work.
Sewage backing up inside? See emergency blocked drains.
Frequently asked questions
How do I know if roots are in my drain?
Repeat blockages, gurgling and an overflowing gully outside are the usual signs. A camera inspection confirms it and shows the pipe condition.
Will clearing roots fix it for good?
Not if the pipe is cracked. Roots regrow from the same entry point, usually within six to eighteen months. Relining seals the entry points.
We back onto the national park. Any special considerations?
Leaf litter and roots are the main ones. Keep gutters and pits clear, and have the stormwater line checked if downpipes overflow.