Riverdale is served by Clayton County Water Authority (CCWA) for water and sewer, so a sewer line replacement in Riverdale means new pipe for the private lateral from your house to CCWA's sewer. About a third of the city's homes predate 1980, and the rest are mostly from the 1980s and 1990s. Call the number on this page to be connected with a local plumber in Riverdale.

When to stop clearing and start replacing
- A main-line clog that keeps coming back
- Water rising in a tub when the toilet flushes
- Gurgling from several fixtures
- A wet strip or sewer smell between the house and the street
- Camera footage showing a sag, a crushed section or roots at several joints
A single defect is usually a repair. Several, or a long stretch that holds water, usually mean a new lateral.
Local conditions in Riverdale
Riverdale is a western Clayton County city just south of the airport, founded as a railroad stop in 1886. The median home dates to 1990 and about 33.2% predate 1980, according to ACS 2019-2023 estimates. That mix produces both kinds of failure: clay or cast iron in the older homes, cracked and root-filled after decades, and plastic in the newer ones, which sags or separates when soil settles.
CCWA provides sewer throughout Clayton County and its six cities. Its 770-960-5200 line handles customer service and after-hours sewer backups, so call it if wastewater is coming up in the street or neighbors are affected. CCWA's published split, main to meter, is for the water line; ask CCWA to confirm where its sewer responsibility ends before work near the street.
What affects cost
- Length and depth of the lateral to CCWA's sewer
- Trenchless where the slope holds, excavation where it doesn't
- Driveways, fences and trees above the route
- Interior drain pipe replaced in the same job
- City permit and inspection
What happens when you call
You'll be connected with an independent local plumber who works in Riverdale. A camera inspection usually comes before a price. Riverdale's Department of Community Development handles plumbing through its Trade Permit Application, which covers plumbing, electrical and mechanical work; Building & Permitting Services can be reached at 770-909-5486. The plumber normally files and schedules the inspection before the trench is closed, and you should ask for the before-and-after footage. Keep it with the permit record; it's the clearest proof of what was replaced if you sell the house later, and it helps the next plumber who works on the line.
Sewer Line Replacement questions in Riverdale
Who issues the permit for replacing a sewer line here?
Why would a fairly new house need its sewer line replaced?
When sewage backs up, should I call the utility or a plumber first?
Can a sewer line be replaced without a long open trench?
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