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Home Rewiring · South Carolina
Rewiring replaces old branch-circuit wiring, such as knob-and-tube, ungrounded cloth-insulated cable or 1960s–70s aluminum branch wiring, with modern grounded copper cable. It can be done room by room, and an electrician will tell you which circuits matter most.
Hurricane season on the coast and fast inland growth drive generator, surge and EV work.
Across the Southeast, homes deal with heat, humidity, frequent thunderstorms and hurricane season near the coast. Permit offices, utilities and housing stock differ by city, which affects how home rewiring is planned and scheduled. These local guides cover the South Carolina cities where we have written specific notes.
South of Broad and the Ansonborough, Harleston Village and Wagener Terrace neighborhoods hold homes spanning nearly three centuries, and their wiring often includes knob-and-tube and cloth cable alongside modern circuits. Charleston's humidity, termites and periodic flooding are hard on old insulation in crawl spaces.
Utility: Dominion Energy South Carolina (some outlying areas: Berkeley Electric Cooperative)
Shandon, Elmwood Park, Earlewood and Cottontown hold many of Columbia's homes from the early 1900s to the 1940s, and some still have knob-and-tube or cloth wiring mixed with circuits added when central air arrived. Rewiring usually comes up during renovation, when an insurer asks, or after the 2015 flood exposed wiring in damaged homes.
Utility: Dominion Energy South Carolina (some outlying areas: electric cooperatives)
Former textile mill villages in Greenville, such as Monaghan, have small frame houses built in the early 1900s, and many have been renovated in stages with wiring from different eras. Rewiring is commonly done during renovations, and crawl spaces usually give the electrician access.
Utility: Duke Energy
1. Assessment
Wiring type, condition and circuit layout are documented.
2. Plan and permit
Circuits are prioritized and the work is permitted.
3. Rewire
New cable is fished through walls and ceilings with minimal openings.
4. Inspection and patching
Rough-in and final inspections, then wall openings are closed.
Electricians set their own prices; local permit fees and utility requirements add to these factors.
Permits come from the city or county where the home is. For example: Charleston: Electrical permits inside city limits come from the City of Charleston's building inspections division; other municipalities and unincorporated Charleston County have their own. Columbia: Inside city limits, electrical permits come from the City of Columbia's building inspections; Richland and Lexington counties and nearby cities have their own. Greenville: Electrical permits inside city limits come from the City of Greenville's Planning and Development office; unincorporated areas are permitted by Greenville County.
Charleston: Dominion Energy South Carolina (some outlying areas: Berkeley Electric Cooperative). Columbia: Dominion Energy South Carolina (some outlying areas: electric cooperatives). Greenville: Duke Energy.
No. Many homeowners rewire in phases, starting with kitchens, baths and bedrooms.
Aluminum branch wiring can overheat at connections. Approved repairs (such as rated connectors) or replacement reduce the risk; an electrician can advise which fits.
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