Mableton's sewer is run by Cobb County Water System, while the city now issues its own plumbing permits, including for sewer line repairs. With roughly a third of homes built before 1980, clay and cast iron laterals are a common source of backups. Call the number on this page to be connected with a local plumber in Mableton.

Who do I call in Mableton when sewage backs up?
That depends on where the blockage is. Cobb County Water System provides water and sewer service in Mableton, and its emergency line, 770-419-6201, handles sewer backups and broken water lines in the public system. If neighbors are backing up at the same time, start there. If it's only your house, the problem is more likely in your own building sewer, and that's a job for a plumber.
Why are laterals failing in older Mableton neighborhoods?
Mableton is an older rail-era community along Veterans Memorial Highway, and much of its housing went up between the 1960s and 1980s. About 35% of homes were built before 1980, with a median around 1988. Laterals from that period are often cast iron, which corrodes and scales on the inside, or clay, whose joints loosen over time and invite roots. Near Nickajack Creek and other wooded areas, tree roots are a frequent finding on camera. Newer subdivisions mostly have PVC, where sags and construction damage are more typical.
Warning signs include water rising in a tub when a toilet flushes, gurgling after laundry, drains slowing throughout the house, and clogs that keep coming back.
Has cityhood changed the permit process?
Yes. Since becoming a city, Mableton runs its own Building Division at 6116 Mableton Parkway, and its plumbing permits specifically cover water, sewer and gas line installations or repairs. Applications are accepted only through the city's Cloudpermit portal, not Cobb County's system. A plumber who works in Mableton regularly will know the process, and the permit means the repair is inspected before it's buried.
A local note
Water service stayed with Cobb County after cityhood, so your bill and the emergency number didn't change. What did change is where the permit comes from. If a contractor mentions pulling a county permit for a job inside Mableton, ask them to double-check.
Before the plumber arrives, stop running water, find the cleanout if you can (often a capped pipe near the foundation), and note which drain backed up first. Those details help the plumber decide whether to clear from inside or outside, and how far to send the camera.
Sewer Line Repair questions in Mableton
Does sewer line work need a permit here?
Who do I call if the backup might be in the public sewer main?
What is the sewer pipe under a house this age likely made of?
Why do tree roots keep getting into my sewer line?
More plumbing services in Mableton
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