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Generator Installation · Marietta, GA

Generator Installation in Marietta, GA

Ice storms and summer storms in Cobb County bring down trees on lines, and outages can last days in Marietta's wooded neighborhoods. Many homeowners want backup for the refrigerator, heat or air, and a sump pump.

  • Call now to check electrician availability in your area
  • Independent, licensed electricians
  • Serving Marietta Square, Whitlock Avenue, Church Street–Cherokee Street and more

What's different about generator installation in Marietta

A portable generator connected through an outdoor inlet and panel interlock covers essentials, while a natural-gas standby generator with an automatic transfer switch runs automatically. Generators must run outdoors and away from windows. Marietta Power, Georgia Power or Cobb EMC owns the service depending on the address, and permits come from the City of Marietta or Cobb County.

Historic homes can have knob-and-tube or cloth wiring, and mid-century homes often have 100 amp panels. Newer subdivisions add EV chargers and generators.

Weather and the utility in Marietta

Marietta has hot, humid summers with thunderstorms and mild winters, but ice storms can coat trees and lines, and the January 2014 winter storm paralyzed metro Atlanta. Marietta Power, run by the city's Board of Lights and Water, serves much of the city and handles meters, service drops and reconnection; Georgia Power and Cobb EMC serve surrounding areas.

Permits in Marietta
Electrical permits inside city limits come from the City of Marietta's development services; Cobb County handles unincorporated areas. Georgia licenses electrical contractors through the State Construction Industry Licensing Board.
Electric utility
Marietta Power (city-owned) or Georgia Power / Cobb EMC, depending on address
Where we connect you
14 ZIP codes in Marietta, including Marietta Square, Whitlock Avenue, Church Street–Cherokee Street, Kennesaw Mountain area, Polk, Powers Park

Signs it's time to call

  • Frequent outages from storms, ice or heat
  • Medical equipment, sump pumps or freezers that cannot lose power
  • A portable generator with no safe way to connect
  • Planning a whole-home standby unit

How the job usually goes

  1. 1. Size the load

    Circuits that must stay powered are listed and the generator sized.

  2. 2. Choose the connection

    Inlet and interlock, manual transfer switch or automatic transfer switch.

  3. 3. Install and inspect

    Permitted installation, gas connection by a licensed fitter where needed, and inspection.

Full details on generator installation, including what you can safely check yourself.

What moves the price in Marietta

Electricians set their own prices. Local permit fees, utility coordination and the age of the home all play a part, along with:

  • Portable inlet versus standby system
  • Generator size
  • Transfer switch type
  • Distance from panel and gas source
  • Pad, permits and inspection

Stop and call an electrician if

  • ✕ Never backfeed through an outlet
  • ✕ Never run a generator in a garage

Generator Installation in Marietta: questions

Do I need a permit for generator installation in Marietta?

In most cases, yes. Electrical permits inside city limits come from the City of Marietta's development services; Cobb County handles unincorporated areas. Georgia licenses electrical contractors through the State Construction Industry Licensing Board. The electrician normally pulls the permit and arranges the inspection.

Is an interlock kit legal?

Listed interlock kits are accepted in many jurisdictions when installed with a permit. Your electrician will know the local rule.

What electrical issues are common in Marietta homes?

Electricians in Marietta most often see: old wiring in historic district homes; ice-storm and summer storm outages; panel capacity in mid-century homes.

More electrical help in Marietta

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