A failing sewer line is one of the most expensive plumbing issues a homeowner can face. In older Staten Island and South Brooklyn neighborhoods, clay, cast iron and Orangeburg lines are still common. When these age, crack or collapse, the symptoms show up long before a full backup.

Here’s how to identify sewer line issues early and avoid major damage.

Clear Warning Signs of Sewer Line Problems

• Multiple drains slow at the same time, especially basement fixtures.

• Gurgling sounds from toilets or tubs when another drain is used.

• Sewage odors outside near foundation vents or inside lower-level bathrooms.

• Recurring backups, even after snaking.

• Soggy or sunken areas in the lawn above the line.

• Toilet bubbling, a sign of negative pressure in the line.

Why It’s Common in Staten Island and Brooklyn

Many homes in 103xx and 11209 / 11214 / 11228 still rely on aging clay or cast-iron sewer lines. Tree roots from mature neighborhood trees often penetrate joints. Older homes with finished basements also hide early symptoms until the issue becomes severe.

Heavy rain events can also highlight partial collapses or bellies in the line.

What Homeowners Should Do Next

• Schedule a sewer camera inspection if you see more than one symptom.

• Replace or repair damaged sections before selling or renovating.

• For buyers: always ask for a sewer scope on older homes or homes near large trees.

• For sellers: addressing issues early prevents renegotiations or failed closings.

Sewer line problems don’t fix themselves, catching them early saves thousands and protects the home.

—

Joseph Ranola | Five-Star Staten Island & South Brooklyn Realtor® (30 + Google reviews)
Associate Broker · Matias Real Estate | Founder · Bridge & Boro Team
Serving 103xx and 11209 / 11214 / 11228 | $25 M + closed volume
📞 917-716-1496 | ranolarealestate.com