The Age Factor
Sydney has some of Australia's oldest residential plumbing infrastructure. Homes in Newtown, Glebe, Erskineville, Redfern, Balmain, Drummoyne, Concord and similar suburbs routinely have drain systems 80–100+ years old.
What Old Pipes Mean for You
Terracotta and Earthenware Pipes
Pre-1960s homes typically have clay or terracotta drain pipes. These develop cracks and joint gaps over decades, become brittle and are highly vulnerable to root intrusion. They are not suitable candidates for high-pressure jetting without a prior CCTV inspection.
Small Diameter Lines
Older drain specifications were based on household loads that didn't include modern appliances. Some older Sydney homes have 75mm drain lines where current standards specify 100mm. Less capacity means blockages occur faster.
Grease-Coated Pipes
Decades of cooking grease, soap and organic matter build up on older pipe walls. Even a "cleared" drain may be running through a substantially narrowed pipe.
Multiple Previous Owners, Multiple Patches
Older properties often have a patchwork of repairs, different pipe materials jointed together, and amateur DIY work that creates additional failure points.
The Right Approach for Older Properties
Any recurring or severe blockage in a pre-1970 Sydney home warrants a CCTV inspection before hydro jetting. Understanding the pipe condition before applying pressure prevents causing damage to already fragile infrastructure.
Don't Ignore Slow Drains
In older homes, a slow drain is an early warning. Addressing it before it becomes a full blockage — or a pipe failure — is significantly cheaper.