Service Area · DeKalb County
Generac generator service in Dunwoody, GA.
Atlanta Generac Maintenance services Generac home standby generators in Dunwoody, GA, from Dunwoody North and Georgetown to Dunwoody Club Forest and the streets around Brook Run Park. Dunwoody is served by Georgia Power and known for its tree canopy, which is exactly why so many outages here start with a tree on a line.
Call (770) 758-3506 Request an estimatePower
Georgia Power serves Dunwoody and all of DeKalb County.
Permits
Electrical and gas work goes through Dunwoody Community Development, Permits & Inspections.
Fuel
Atlanta Gas Light distributes natural gas in DeKalb County, so many homes can fuel a generator with gas.
Trees and outages in Dunwoody
Dunwoody takes its trees seriously. The city describes roughly 150 miles of public rights of way under a dense canopy of pines and hardwoods, and it has been a Tree City USA for 13 consecutive years as of 2025. That canopy is a big part of the city's character, and it is also the most common reason Dunwoody homes lose power.
Local outage reports keep pointing at trees. During Tropical Storm Zeta in October 2020, Dunwoody police reported a dozen streets and intersections with trees down. When Hurricane Helene's remnants passed in September 2024, trees came down on wires on streets including Hidden Branches Circle, Valley View Road, and Laurelwood Drive. In June 2026, a single tree at Peeler Road and Cherring Drive cut power to more than 500 Georgia Power customers.
Many residents still remember the April 1998 tornado, an F2 that damaged an estimated 5,000 homes and took thousands of trees; the Dunwoody Preservation Trust later replanted 20,000. Big storms are rare, but tree-caused outages are routine, and a standby generator covers both.
Georgia Power service and outage tracking
Georgia Power serves all of Dunwoody, so there is one outage map to bookmark: the Georgia Power outage map. On a typical day, an outage on your street is probably a local tree or equipment problem; during a regional storm, restoration can take longer as crews work across metro Atlanta. In 2020, more than 17,000 customers in the Sandy Springs–Dunwoody Perimeter Center area lost power during Zeta.
For storm warnings and preparation guidance across the county, follow the DeKalb Emergency Management Agency. City news and road closures are posted on the City of Dunwoody website.
Permits for generators in Dunwoody
Dunwoody handles stand-alone electrical and gas work as trade permits through Community Development, Permits & Inspections. A standby generator installation involves an electrical connection, a transfer switch, and usually a gas line, so expect trade permits for that work. If the electrical service itself changes, the city also requires a Temporary Power Letter.
For questions about larger projects on a single-family lot, the city's residential single-family permits page is the starting point. Routine maintenance, oil changes, and battery replacement on an existing generator do not need permits.
Dunwoody homes, stream buffers, and placement
Most Dunwoody neighborhoods date from the 1960s and 1970s. Dunwoody North, begun in 1963, has ranch, split-level, and two-story homes, and Dunwoody Club Forest grew up around the country club after 1969 with large two-story brick houses. Homes of that era often have original or older panels, so a panel review is part of planning a generator.
Placement has a local wrinkle. Dunwoody's tree regulations do not require a removal permit on most of a single-family lot, but within the 75-foot stream buffer a permit and a certified arborist's report are required, and buffer violations can bring fines. If your yard backs onto a creek, the generator pad should stay well outside the buffer.
Around Dunwoody: villages, parks, and Perimeter
Dunwoody became a city in 2008, but its neighborhoods are older. Georgetown was built in the early 1960s, Dunwoody North began in 1963, and both Dunwoody Village, with its Williamsburg-style storefronts, and Perimeter Mall opened in 1971. Other familiar areas include Winters Chapel, Tilly Mill, and Dunwoody Club Forest. The city is bounded by I-285 to the south, Fulton County to the north and west, and Gwinnett County to the northeast.
Parks anchor many neighborhoods: Brook Run Park, at roughly 100 acres, and the Dunwoody Nature Center are among the largest green spaces. Like the rest of the city, they sit under a mostly pine and hardwood canopy. Outages can still be large here: in September 2021, close to 4,000 Georgia Power customers in Dunwoody lost power in a single event.
Natural gas is widely available. Atlanta Gas Light is the gas distributor throughout DeKalb County, and customers buy gas from certified marketers, as the Georgia Public Service Commission explains. A standby generator can connect to that service, though a larger generator may need a bigger gas meter.
Generator care through the Dunwoody year
- Spring: pine pollen coats enclosures. Clear the air intake during scheduled maintenance.
- Summer: storms and falling limbs bring the most outages. After a long run, check whether an oil change is due.
- Fall: leaves pile against enclosures. An inspection catches blocked vents and pest nests before winter.
- Any time: if the house stays dark while the generator runs, the transfer switch may need repair.
Common generator questions in Dunwoody, answered
Georgia Power serves Dunwoody and all of DeKalb County, so the Georgia Power outage map is the one to check during an outage. Many Dunwoody outages are caused by trees falling on lines, which Georgia Power crews repair street by street. Regional storms can take longer to restore.
A permanently installed standby generator involves electrical and usually gas work, which Dunwoody handles as trade permits through Community Development, Permits & Inspections. If your electrical service changes, the city also requires a Temporary Power Letter. Portable generators used with cords do not need permits.
On most of a single-family lot, Dunwoody does not require a tree removal permit. Within the 75-foot stream buffer, removal needs a permit and a certified arborist's report, and buffer violations can be fined. If your property backs onto a creek, place the generator outside the buffer.
Usually. Atlanta Gas Light distributes natural gas throughout DeKalb County, and Dunwoody ZIP codes 30338, 30350, and 30346 are in its service area. A standby generator can connect to your existing gas service, though a larger generator may need a bigger meter. Homes without gas can use propane.
Generac recommends service every 200 run-hours or two years on air-cooled home units. With Dunwoody's tree cover, a yearly inspection is worth adding, because leaves, pine straw, and pests collect in and around enclosures. Check run-hours after any long outage.
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