Dee Why at a glance
Apartments first
81.9% of the suburb's occupied homes were flats or apartments at the 2021 Census, and just 15.3% separate houses.
Nearly half rent
47.3% of Dee Why homes were rented in 2021, against 32.6% for NSW as a whole.
Protected trees
Dee Why sits wholly inside the Northern Beaches council area. Trees there, private ones included, are protected under a state planning policy, and removal outside a development application still needs a Council permit.
Sewer damage isn't a reason
Council's list of removals it won't approve includes damage to sewer pipes. It may allow root pruning to reduce damage to built structures.
When roots reach the sewer
Sydney Water puts roots that enter the junction at the point of connection on the property owner's side, and the owner's pipes run right up to that connection. Add Council's tree rules and a root-choked sewer line in Dee Why becomes a pipe job first.
A drain specialist can show you the roots on camera, clear them, and talk through a lasting fix such as pipe relining or replacing the damaged length. If the repair means cutting big roots, ask Council about root pruning before anyone starts.
Blocks of units
Most Dee Why plumbing problems happen in shared buildings. Where a private pipe serves more than one owner, Sydney Water says every owner sharing it is responsible. Check with your strata manager before booking, and if you rent, tell your agent in writing.
The NSW paperwork
Drainage is specialist work in NSW, so the plumber needs a contractor licence for it whatever the job costs. Unless it's an emergency or minor work, a Notice of Work is lodged before plumbing or drainage starts, and drainage jobs also need a Sewer Service Diagram. At the end, the plumber lodges a Certificate of Compliance and gives a copy to whoever arranged the work.
For the next step, see blocked drains in Sydney or tree roots in drains. We'll match the job with a licence-checked drain specialist who covers Dee Why.
What we would do
Before you agree to any root job in Dee Why, ask to see the camera footage and where the roots are getting in. If they're in Sydney Water's part of the line, the plumber should report it rather than clear it on your bill. If they're in your own pipe, put the money into the joint or the pipe, because Council won't sign off on removing the tree for that reason.