Who Is Responsible for Sewer Line Repair in Georgia, You or the City?

Sewage is backing up into your tub, the yard smells, and your first thought is probably “the city will fix this, right?” Sometimes yes. A lot of the time, no. In Georgia, like most of the country, the pipe under your yard is usually your problem, and the pipe under the street is the city’s. The trick is knowing where the line gets drawn, because that one detail decides who pays for a repair that can run a few hundred dollars or several thousand. Here is how the split works in Cobb County, the City of Marietta, and the City of Atlanta, plus what to actually do when wastewater starts coming back up.

The lateral versus the main: where your responsibility ends

Every sewer system has two parts that matter for this question. The first is the sewer lateral, which is the underground pipe that carries waste from your house out to the public sewer. The second is the main, the larger pipe that runs under the street and collects waste from a whole neighborhood. As a rule, you own the lateral and the sewer authority owns the main.

That sounds simple until you realize the lateral often runs past your property line and under the sidewalk or street before it reaches the main. In most Georgia jurisdictions you are still on the hook for that buried section, even though it sits under public ground. The handoff point is usually a cleanout, a capped access pipe installed near the property line or easement. Everything from that cleanout back toward your house is yours. Everything from the cleanout out to the main belongs to the authority. If you have ever wondered why a contractor wants to find your cleanout first, this is why. It tells everyone exactly where your half of the pipe starts.

How it works in Cobb County, Marietta, and Atlanta

The general rule holds across Metro Atlanta, but each authority words it a little differently, so confirm the details with whoever bills you for sewer service.

Cobb County Water System

Cobb County Water System owns and maintains the wastewater collection mains, generally pipes 8 inches and larger. The lateral that connects your home to that main is the property owner’s to maintain and repair. That includes keeping it clear of roots, grease, and debris. If you are in a Cobb city served by CCWS, such as Powder Springs, the same expectation applies: the homeowner maintains the line from the house to the main.

City of Marietta

Marietta runs its own sewer system under the city’s public works and water departments, and it follows the standard lateral-and-main division. The city maintains the public mains, while the service line from your home to the connection point is the property owner’s responsibility. Marietta’s sanitary sewer specifications govern how laterals must be built and connected, so any repair or new tap needs to meet those standards. When in doubt, a quick call to the city saves a guess.

City of Atlanta

Atlanta is the clearest on paper. The Department of Watershed Management installs a cleanout at the edge of the easement or property line. Ownership of the line from that cleanout to your house, including the cleanout itself, is the homeowner’s. Ownership of the line from the cleanout to the main is the City of Atlanta’s. If your backup is on the house side of that cleanout, it is your repair. If it is on the street side, report it to the city.

One thing worth repeating: these are the general frameworks, and policies get updated. Before you assume anything, confirm with the authority that serves your address. They can tell you who owns which foot of pipe.

What to do when sewage backs up

A backup is messy, but a calm order of operations protects your home and your wallet.

• Stop running water. No flushing, no laundry, no dishwasher. Every gallon you add has nowhere to go but back into the house.
• Find your cleanout. If sewage is coming out of the cleanout cap or you see it pooling near the property line, the blockage may be on the city’s side. Document it with photos.
• Call your sewer authority first if you suspect a main problem. If a neighbor is having the same issue at the same time, that points to the main, and the city should respond.
• Call a licensed plumber if the trouble is clearly inside your lateral. A&G can usually get out fast, with same-day scheduling when available during business hours.
• Keep people and pets away from the affected area and avoid contact with the water, which carries bacteria.

Why a camera inspection matters

Guessing where a sewer problem sits is how people end up digging up the wrong stretch of yard. A sewer camera inspection sends a waterproof camera down the line so we can see roots, cracks, bellies, grease, or a collapse, and pinpoint exactly how far down the pipe it is. That distance reading is what tells us whether the issue is on your lateral or past your cleanout toward the city main. It also gives you proof to show the authority if the problem turns out to be theirs. For anything involving a buried line out to the street, our main sewer line services cover the repair or replacement once we know what we are dealing with.

What sewer work costs around Atlanta

Prices swing based on pipe material, depth, and how much line is affected. In the Atlanta area a camera inspection generally runs from about $430 to roughly $1,500, with many homeowners landing near $900. Actual repair is usually quoted per foot, often in the range of $60 to $250 per linear foot, so a small spot fix costs far less than a full lateral replacement. The honest answer is that no two yards are the same, which is exactly why we camera the line before quoting a repair. You get a real number, not a finger in the air.

Frequently asked questions

Is the city ever responsible for my sewer line in Georgia?

Yes, but usually only for the public main and, depending on the jurisdiction, the section of pipe past your cleanout toward that main. In the City of Atlanta, the line from the cleanout to the main belongs to the city. Confirm your specific situation with your local sewer authority.

What is a sewer cleanout and why does it matter?

A cleanout is a capped pipe, often near the property line, that gives plumbers access to the lateral. It frequently marks the boundary between your responsibility and the authority’s. Knowing where yours is helps everyone figure out who owns the failing section.

Who pays if tree roots clog the line under the street?

If the roots are in the part of the lateral you own, even where it runs under the street, the repair is typically yours. If the blockage is in the public main, it falls to the sewer authority. A camera inspection settles the question by showing the exact location.

Does homeowners insurance cover sewer line repair?

Standard policies often exclude sewer lateral damage, though some insurers offer a separate service line endorsement that does cover it. Check your policy and ask your agent before you assume you are covered.

How do I know if the backup is my problem or the city’s?

Watch where it shows up. Sewage at a single fixture or coming up through a cleanout on your side of the property usually means your lateral. Multiple homes backing up at once points to the main. When it is unclear, a camera inspection gives a definite answer.

Can A&G handle the repair once you find the problem?

Yes. We inspect the line, locate the issue, and tell you whether it is on your side or the city’s. If it is yours, we handle the repair or replacement. Call us at (770) 627-4421 to set up an inspection.