Emergency Plumbing Help in Dunwoody, Georgia
Dunwoody's housing is the most uniform in our metro: mostly 70s and 80s subdivisions, which means original-era plumbing hitting replacement age street after street. Water and sewer come from DeKalb County, and the city publishes a clean trouble-call guide that matches what you'll find here.
Who to call, and for what
Water and sewer: DeKalb County Department of Watershed Management
Dunwoody's trouble-calls guide routes water main leaks, sewer spills, brown water and loss of water to DeKalb's emergency line.
- DeKalb Watershed 24-hour emergency line, water and sewer770-270-6243
Gas leaks: Atlanta Gas Light
Smell gas? Leave first, phone from outside. 24-hour emergency number; the city says to call 911 and notify AGL.
- Atlanta Gas Light877.427.4321
A 24/7 plumber
For the repair itself. We're a referral directory, not a contractor; this button opens our request form and we pass it to a plumber.
What breaks in Dunwoody houses
Median build year 1984, just 6 percent built since 2010, almost nothing pre-war: Dunwoody is the metro's most concentrated stock of 40-year-old plumbing. Water heaters, polybutylene-era supply lines and original sewer laterals all come due around the same age. (Median build year 1984, 0.3% built before 1940, 6.0% since 2010; Census ACS 2019 to 2023.)
Freeze risk, the honest version
- By NOAA's 1991 to 2020 climate normals, Atlanta's Hartsfield-Jackson station averages 35.7 nights a year at or below 32 degrees, with the first freeze typically around November 20 and the last around March 15.
- Georgia EPD tells homeowners to be alert for pipe freezes whenever outdoor temperatures threaten the 20 to 30 degree range, because homes here are built for occasional cold, not constant cold.
- The December 2022 freeze is the local benchmark: Atlanta bottomed at 8 degrees on December 24 and stayed below freezing all day, and metro water systems reported frozen pipes, main breaks and boil water advisories in the days after.
When a hard freeze is coming: slow drip on faucets with exposed pipes, cabinet doors open, heat steady, hoses off. The frozen pipes guide has the full prevention and thawing list.
Worth knowing locally
- DeKalb's service-line split applies here: county owns main to meter, owner owns meter to house.
- DeKalb's sewers run under a federal consent decree extended to December 2027 with a 103-area priority fix list targeting repeat spill areas, context for any recurring backup conversation with the county.
Permits, before the big repair
Dunwoody treats a water heater replacement as a stand-alone trade component permit, issued over the counter, online or by mail. Its examples list names water heater replacements and plumbing repairs specifically.
City of Dunwoody Community Development, Permits and Inspections
4800 Ashford Dunwoody Road, Dunwoody, GA 30338
678-382-6700
Any plumber you hire should carry a Georgia license; check it free on the Secretary of State's license search.
ZIP codes we map to Dunwoody
Nearby pages
Sources
Every number and local fact above comes from one of these, read 2026/10. Spot something out of date? Tell us.
- City of Dunwoody: Trouble Calls Guide
- City of Dunwoody: Trade Component Permits
- DeKalb County Department of Watershed Management: Service Line Ownership
- DeKalb County: DeKalb Continues Work on Sewer Priority Fix List (Oct. 20, 2021)
- U.S. Census Bureau: American Community Survey 2019-2023 5-Year Estimates, Table B25035: Median Year Structure Built
- U.S. Census Bureau: 2019-2023 ACS 5-Year Narrative Profiles (places)
- NOAA NCEI: U.S. Climate Normals 1991-2020: Atlanta Hartsfield Intl Airport
- Georgia Environmental Protection Division: Guidance to Homeowners for Preventing and Dealing With Frozen Water Pipes (rev. Feb. 2014)
- National Weather Service Atlanta: December 2022 Climate Summary
- Clayton County Water Authority: Officials Seeing Slow Improvements in Tank Levels and System Pressures (Dec. 28, 2022)
- DeKalb County: Boil Water Advisory Remains in Effect for Parts of DeKalb (Dec. 27, 2022)