Complete Rewiring

Knob-And-Tube, Cloth Wiring & Aluminum Branch Circuits

Knob-and-tube (K&T) wiring was the standard installation method in Charleston homes built before approximately 1945. While intact K&T can technically remain energized, it has no ground conductor, becomes brittle with age, and is incompatible with modern insulation, covering K&T with attic insulation creates a serious fire hazard. Most South Carolina insurance carriers refuse to write or renew policies on homes with active K&T circuits.

Cloth-insulated wiring from the 1940s through 1960s suffers from similar problems. The rubber insulation hardens, cracks, and falls away from the conductors, leaving bare copper exposed in walls. Aluminum branch circuit wiring installed during the 1965-1973 copper shortage expands and contracts at a different rate than copper terminations, loosening connections over time and creating a documented fire risk.

EmergenServe identifies all three of these legacy wiring systems during our pre-rewire assessment and provides a phased remediation plan that fits your budget and renovation timeline.

Phased Rewiring Vs Whole-Home Rewiring

Not every Charleston rewire requires gutting the entire house at once. EmergenServe offers phased rewiring plans where we replace the highest-risk circuits first, kitchen, bathrooms, laundry, and any K&T or aluminum runs, while leaving lower-risk circuits in place until your budget or renovation schedule allows full replacement. This approach is especially common in occupied historic Charleston singles where displacement is impractical.

Whole-home rewiring during a major renovation, on the other hand, is the most efficient and cost-effective approach. With walls already open, we can pull new copper home runs to every outlet, switch, and fixture; install dedicated circuits for kitchens, bathrooms, and laundry rooms per current NEC code; add AFCI and GFCI protection where required; and pre-wire for low-voltage data, AV, and smart-home systems.

• Knob-and-tube (K&T) wiring removal
• Cloth-insulated wiring replacement
• Aluminum branch circuit remediation
• Copper home runs to every device
• AFCI and GFCI code-compliant protection
• Dedicated kitchen, bath, and laundry circuits
• Smart home and low-voltage pre-wire
• Old-work, retrofit, and minimal-drywall techniques

Historic Charleston Homes & Plaster Wall Techniques

Charleston's historic single houses, Italianate row houses, and antebellum townhomes present unique rewiring challenges. Lath-and-plaster walls, mortise framing, and hand-hewn structural members make standard rewiring techniques destructive and expensive if attempted by an unfamiliar crew. EmergenServe has decades of experience working in historic Charleston structures and uses proven old-work techniques, fishing wire through chase walls, pulling through baseboards and crown molding, drilling diagonally between studs, and selectively patching plaster, to minimize wall damage.

We coordinate directly with Charleston's Board of Architectural Review (BAR) when working on historic district properties, and partner with respected local plaster restoration contractors for any repair work that exceeds simple drywall patching.

Permits, Inspections & Living Through A Rewire

Every whole-home or partial rewire in Charleston requires a permit and a final inspection. EmergenServe handles all permitting with the City of Charleston, Charleston County, Berkeley County, or Dorchester County, schedules every required rough-in and final inspection, and provides a complete updated panel directory at project completion.

We work with most homeowners to keep at least partial power available throughout the project, typically isolating one circuit at a time so refrigerators, freezers, and one HVAC system stay running. Most whole-home rewires take 7 to 14 working days depending on home size, accessibility, and finish complexity.

Old-Work Tricks We Use In Charleston Singles

Rewiring a 200-year-old Charleston single house south of Broad is nothing like rewiring a tract home in Park Circle. The walls are lath-and-plaster over heart pine studs, the chases run in places that don't match the floor plan, and the BAR cares deeply about every visible penetration. We fish 12-2 NM-B through the original gas-pipe chases when we can find them, drill diagonal bores between studs with a 90-degree right-angle drill kit, and pull through baseboard and crown molding so the only visible patching is at the device boxes themselves.

We carry old-work boxes in steel and plastic, low-voltage mud rings, and a borescope for confirming a clear path before we ever cut plaster. For double-piazza houses, we run home runs vertically inside the piazza wall and break out horizontally on each floor, saving the interior plaster entirely. When we do have to open plaster, we score with a multi-tool instead of a utility knife, save the keyway intact, and hand the wall off to a plaster restoration partner who can blend a hand-troweled patch into 1840s lime plaster. That's the level of care a historic Charleston rewire actually requires.