Cobb County is not a single housing stock. A brick ranch near the Square, a 1990s two-story off Barrett, a Smyrna townhome, and an Acworth house with a shop each ask different questions of the electrical system. This guide is for homeowners who want a county-level map of those questions—not a DIY wiring manual.
Start with our Cobb County electrician hub, then use the city page that matches your address: Marietta, Kennesaw, Smyrna, or Acworth.
Nix Electrical is a licensed, family-owned contractor. We quote the work you asked for. Related findings and optional upgrades stay in separate buckets. That policy is written out on No Upsells. Ever..
What usually brings Cobb homeowners to an electrician
Most calls fall into a few buckets.
Something failed. A breaker that will not reset, a dead kitchen circuit, or lights that dip when the air conditioner starts belong under troubleshooting first. The panel may be involved. It is not automatically a 200-amp replacement.
A report flagged the electrical system. Buyer and seller inspections often mention the panel, GFCI devices, or “recommend electrician.” Those notes are a starting list. Our electrical inspections page explains what we actually look at. A companion article covers what a Cobb inspection report means for your panel.
You are adding load. Level 2 charging, a kitchen, a shop, or pool equipment can outgrow a 100-amp service or a full breaker directory. EV charger installation and panel upgrades are separate scopes. We will not sell a service change because a charger consult was booked.
You are remodeling. Open walls are the cheap moment for new home runs. That work lives under renovations, with panel work only when capacity or obsolete equipment requires it.
Marietta
Marietta mixes older neighborhoods, in-town infill, and later subdivisions. Older services, mixed grounding, and additions that were never reflected on the panel directory are common. If you are listing or buying near the Square or East Cobb, a licensed walkthrough before you budget repairs is usually worth more than guessing from photos.
Kennesaw
North Cobb houses often have finished basements, extra HVAC, and driveway charging in the same decade. The question is whether the panel has spaces and whether the service size matches simultaneous loads—not whether every house “should” be 200 amps.
Smyrna
Townhomes and tighter closing calendars show up here. Inspection comments need a written electrician’s response that separates required items from optional ones so the contract does not balloon. Home inspection repairs and the Realtors page cover that timeline.
Acworth
Northwest Cobb and lake-adjacent properties add shops, docks, and outdoor kitchens. Those loads are real. They still get a load conversation, not a default package. Confirm we cover your street from the city page or by calling.
Permits and inspections
Cobb County and its cities issue electrical permits for new circuits, service changes, and much of the work that is not a like-for-like device swap. We pull permits when the job requires them and meet the inspector. Requirements can differ slightly by address; we confirm that during the estimate.
How to use this site
- County overview: Cobb County
- Residential services for the full menu
- Fair panel-upgrade quotes if you already have a number from another contractor
Call (470) 681-7660 or use Book Now. Free estimates. Licensed and insured.