Updated October 2026
Collaroy runs along the beach between Dee Why and Narrabeen, with apartment blocks lining Pittwater Road and the beachfront, older houses in the side streets and the steep rise of Collaroy Plateau behind. Sand, salt and shared pipework are the recurring themes. Beaches Blocked Drains is a local referral service. We connect you with licensed local drain plumbers who service Collaroy.
Why Collaroy drains block
Beachside streets sit on sand, and sand gets everywhere: gullies, outdoor showers, floor wastes and stormwater pits. Where a pipe joint is cracked, sand can wash into the line and settle until waste catches on it.
The apartment blocks along the beach and main road share sewer stacks between many units. Wipes, grease and food scraps from one floor can block the line for everyone below. Older blocks may have original cast iron or clay pipework that has corroded or cracked.
Water comes down the hill too. Stormwater from Collaroy Plateau heads toward the flat land behind the beach, and in heavy rain low streets near the lagoon end can struggle to drain.
What the plumbers we refer usually do
A CCTV drain camera shows whether the problem is sand, roots, grease or a broken pipe, and in strata buildings it shows whose pipe it is. Jet blasting flushes sand and grease out properly. Pipe relining can repair a damaged stack or private line without opening walls.
What it costs in Collaroy
A standard clear typically runs $150 to $400. A combined camera and jetting job typically runs $350 to $900. Strata jobs involving shared pipework are usually arranged through the building manager. You get a price before work starts.
If water is coming up through a floor drain, see emergency blocked drains.
Frequently asked questions
Our unit block's drains keep blocking. What should strata do?
A camera inspection of the common stacks shows the cause and condition. Jetting clears grease and debris, and relining is an option if the pipe is damaged.
Why does sand keep turning up in our drains?
It comes in through outdoor showers, gullies and cracked joints. A fine grate on outdoor drains and repairing any cracked sections keeps most of it out.
Who handles flooding from the street?
Northern Beaches Council looks after street drainage. Your private pits and pipes are your responsibility.