What Happens If You Ignore a Sewer Lateral Leak?
What Happens If You Ignore a Sewer Lateral Leak?
A sewer lateral issue is easy to deprioritize since it’s often just a slow drain you can snake yourself and move on. Here’s what tends to happen if the underlying problem – usually root intrusion or a deteriorating pipe joint – is never actually addressed.
It Gets Worse Gradually, Then Suddenly
Root intrusion is a progressive problem – a small crack lets in a small root, which grows and widens the opening, letting in more roots. A lateral that’s been slow-draining for months can transition to a full blockage relatively quickly once the roots reach a critical mass inside the pipe. See our tree roots and underground pipes piece for the mechanics.
Snaking Becomes a Recurring Cost
Snaking or hydro-jetting clears the immediate blockage but doesn’t fix the crack or joint that let the roots in. Without addressing that root cause, homeowners can end up paying for the same clearing service every several months indefinitely – a recurring cost that eventually exceeds what a proper repair would have cost.
Backups Get More Disruptive
An untreated lateral issue tends to progress from occasional slow drains to actual sewage backups into the home – a significantly more disruptive and unpleasant situation than a slow drain, and one that often happens at an inconvenient time rather than on a predictable schedule.
It’s Still Your Liability
City of Torrance policy holds the property owner responsible for the entire lateral line, including the section under the public street. That doesn’t change whether you address the issue now or after it’s become a full collapse – it just changes the cost. See our sewer lateral detection page for the full process and repair options.
