10 Signs of a Broken Sewer Line (and What to Do Next)

Sewer lines rarely fail overnight — they broadcast warnings for months. Here are the ten signs, roughly in the order homeowners meet them.

The 10 warning signs

1. Multiple slow drains. One slow fixture is a clog. Several at once points at the main line.
2. Gurgling sounds. Air escaping through water traps when other fixtures drain — a classic partial-blockage symptom.
3. Sewage odors in the house, yard, or near cleanouts.
4. Recurring backups in the lowest drains — especially if snaking "fixes" it for a few weeks at a time.
5. Unusually lush, green patches along the pipe's path. Leaking wastewater is fertilizer.
6. Soggy or sunken ground over the line, even in dry weather.
7. Pest activity — rats and insects follow broken sewers.
8. Mold or moisture on lower walls and floors from under-slab leaks.
9. Foundation movement — new cracks, doors that stopped closing; long-term leaks disturb the supporting soil.
10. A spike in your water bill when the leak is on a pressurized line.

Three or more of these at the same time is not a coincidence. Stop paying for repeat drain-snaking and get the line scoped — a camera inspection costs a few hundred dollars and ends the guessing.

What happens after the inspection

If the camera finds root intrusion, cracks, or failed joints in a structurally sound pipe, CIPP lining renews it without digging. Collapsed or badly offset pipe points to pipe bursting. Either way, modern repair means your yard is not the price of a working sewer — see how it works on our services page, or find a specialist near you in our service areas.