A sewer backup is a miserable, unsanitary emergency. When it keeps happening, snaking the line each time is just a temporary patch — the real cause is still there. Here's what's likely going on.
Tree root intrusion
Roots are drawn to the moisture and nutrients in sewer lines and grow in through tiny cracks and joints. Once inside, they expand and catch debris, causing repeated backups. This is the most common cause in older neighborhoods.
Grease and buildup
Years of grease, soap, and debris coat the pipe walls, gradually narrowing the line until backups become routine. Hydro-jetting removes this buildup that snaking leaves behind.
Structural problems
A pipe that's cracked, collapsed, or sagging (a 'belly') collects waste and blocks flow. No amount of clearing fixes a structural defect — it needs repair or replacement.
Municipal issues
Sometimes the problem is in the city's main, not your line. If backups coincide with heavy rain, an overwhelmed municipal system or a connection issue may be involved.
The permanent fix
A camera inspection identifies the true cause. From there, the fix might be root removal, hydro-jetting, trenchless repair, or replacement — but you'll finally stop paying to clear the same backup over and over.
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