Decatur homes are on DeKalb County water, and DeKalb owns the service line from the main through the meter. From the meter to the house, the pipe is the owner's, and the City of Decatur requires a separate plumbing permit for the work regardless of value. Call the number on this page to be connected with a local plumber in Decatur.

Why do Decatur water lines fail so often?
Age. Decatur is the historic DeKalb County seat, and its housing is among the oldest anywhere around Atlanta. The median home was built in 1975, about 54% predate 1980, and roughly 23% were built in 1939 or earlier, in close-in neighborhoods like Oakhurst and the streets around the square and Agnes Scott. A line that old may be galvanized steel scaled shut inside, a run of mixed materials from several past repairs, or tangled with roots from big shade trees. DeKalb's 2026 report advises extra flushing for homes with lead or galvanized service lines, and the county's "Check your line" inventory lets you see what's recorded for your address.
Who fixes what?
DeKalb Watershed owns the line from the main to the meter, including the meter, and the property owner is responsible from the meter to the home's plumbing. Water in the meter box goes to DeKalb's 24-hour emergency repair line, 770-270-6243. Everything past the meter is a job for a plumber you hire. One wrinkle: Decatur-mailing ZIPs reach far beyond city limits into unincorporated DeKalb. The water utility is the same, but permits outside the city come from DeKalb County instead.
What does the permit process look like?
Inside the city, Decatur's Design, Environment & Construction Division requires a separate trade permit for plumbing, drainage, sewer or gas work no matter the job's value. Applications go only through the Community Core online portal. A plumber who works in Decatur regularly will know the process and usually pulls the permit as part of the job. Given the age of most lines, expect the plumber to talk through a full replacement, possibly bored under old walks and tree roots, rather than a patch.
Local note
Many Decatur lots are narrow with mature trees, brick or stone walks, and porches facing the street. Ask whether a new route around those features would cost less than digging through them and restoring them afterward. On a line this old, it's also worth asking the plumber to look at the main shutoff valve and the first few feet of pipe inside the house, since an old gate valve that won't close fully can make any future repair harder. If the house is on a crawl space, the section where the line rises through the foundation is a common weak point and is easy to inspect while the plumber is there.
Water Line Repair questions in Decatur
How do I find out what my service line is made of?
Is a permit needed to repair or replace a water service line here?
When is replacing the whole line smarter than patching one spot?
Can tree roots damage a pressurized water line?
More plumbing services in Decatur
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