Quick answer: Common causes of blocked drains in Sydney including tree roots, grease, wet wipes, ageing pipes, stormwater issues and collapsed lines. Every property is different, so the best next step is to describe the issue clearly and let a licensed plumber assess the cause before quoting the repair.
Tree roots and older pipes
Tree roots are a common cause of repeat blockages, especially around older homes and established suburbs with clay or damaged pipework.
Grease, wipes and daily use
Kitchen grease, wipes, hair and foreign objects can build up inside pipes and create slow drains, odours or complete blockages.
Stormwater and heavy rain
Stormwater systems can block with leaves, silt and debris. If water is backing up during rain, the issue may be outside the internal plumbing system.