Johns Creek water and sewer come from Fulton County, which repairs the service line from the main to the meter. Past the meter, a hidden leak is the homeowner's, and a plumber can confirm it and pinpoint the spot. Call the number on this page to be connected with a local plumber in Johns Creek.

Are Johns Creek homes reaching the age for leaks?
Many are. About 67% of homes here were built between 1980 and 1999, and the median build year is 1995. Fewer than 5% predate 1980. That means most houses still have their original water heater connectors, supply hoses, shower valves and service lines, now 25 to 45 years old. Leaks at that stage usually start small, at a fitting or valve, and show up on the bill or as a stain long before anything fails outright.
Where does the county's responsibility stop?
At the meter. The City of Johns Creek does not provide water or sewer; Fulton County Public Works serves north Fulton, including Johns Creek, from the Tom Lowe Atlanta-Fulton County Water Treatment Plant, which happens to sit inside the city. The county repairs the water service line from the main to the meter, and the owner is responsible from the meter to the house. For sewer, the owner is responsible for the lateral from the home to the property line. Drinking water emergencies in north Fulton go to 770-640-3040, and sewer issues after hours to 404-612-3061.
Does a leak repair need a city permit?
If it involves plumbing work, yes. Johns Creek requires a city Trade Permit for any plumbing or gas work, applied for through the city's Customer Self-Service portal, and permit technicians can be reached at 678-512-3250. A plumber replacing a service line or rerouting supply pipe will typically handle that application.
What the plumber does
An independent plumber who works in Johns Creek will usually begin at the meter, then close the house valve to see whether the yard line or the interior is losing water, and finally isolate branches and listen until the leak is narrowed to a small area.
A local note
Large lots and landscaped yards mean irrigation is common, and a cracked lateral can hide for weeks under mulch. Run one meter check with the controller off and another during a cycle. Fulton County requires testable backflow devices to be tested every year by a certified tester, and you can check your service line material at fcpwleadcopper.com. Before the plumber arrives, find the main shutoff, make sure it still turns, and note any warm floors or stains so the search can start in the right place.
Leak Detection questions in Johns Creek
Are hidden leaks more common in older homes here?
Is a leak at the meter box my problem or the utility's?
Do I need a permit to repair a leaking pipe?
Can a running toilet really raise my water bill?
More plumbing services in Johns Creek
Leak Detection nearby
Helpful guides
Sources
- Fulton County Water Services: start service
- Fulton County Water Services: emergency repairs
- Fulton County: water and sewer service laterals
- Fulton County 2026 Water Quality Report
- Fulton County: backflow prevention
- City of Johns Creek: online permit portal guide
- Johns Creek housing by year built (ACS 2019-2023 via Point2Homes)
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