Rewiring an entire home is one of the most significant electrical projects a homeowner can undertake. It is also one of the most important for homes with outdated or deteriorating wiring. If your Aiken-area home was built before the 1970s and has never had its wiring updated, there is a good chance the electrical system is approaching or past the end of its safe useful life. Here is everything you need to know about the process, cost, timeline, and what daily life looks like during a rewiring project.
When Does a Home Need Rewiring?
Not every old home needs complete rewiring. But certain signs and conditions make it necessary:
- Knob-and-tube wiring: If your home still has original knob-and-tube wiring from before the 1940s, it needs to be replaced. The insulation deteriorates, connections loosen, and the system was never designed for modern electrical loads.
- Cloth-insulated wiring: Homes wired in the 1940s through early 1960s often used rubber-insulated conductors with cloth outer jackets. The rubber cracks and crumbles over time, exposing bare copper.
- Aluminum branch wiring: Some homes from the late 1960s and 1970s used aluminum wiring for branch circuits. While not always requiring complete replacement, homes with extensive aluminum wiring and evidence of overheating at connections may benefit from rewiring.
- Frequent breaker trips: Circuits that constantly trip under normal loads indicate wiring that cannot handle the current being drawn.
- Burning smells or discolored outlets: These are signs of overheating connections and are urgent safety concerns.
- Two-prong ungrounded outlets throughout: While individual outlets can be updated, widespread lack of grounding in an older home often indicates the entire wiring system needs replacement.
- Insurance requirements: Some insurance companies refuse to cover homes with certain types of outdated wiring or require upgrades as a condition of coverage.
Cost Ranges by Home Size
Rewiring costs in the Aiken area vary based on home size, number of stories, wall construction, accessibility of wiring paths, and the scope of work. Here are general cost ranges for complete rewiring including a new panel:
- Under 1,000 sq ft (small home, 2 bedroom): $8,000 - $12,000
- 1,000 - 1,500 sq ft (average older home, 3 bedroom): $10,000 - $16,000
- 1,500 - 2,000 sq ft (larger home, 3-4 bedroom): $14,000 - $22,000
- 2,000 - 2,500 sq ft (spacious home): $18,000 - $28,000
- 2,500+ sq ft (large home): $25,000 and up
These ranges include the new panel, all new wiring, new outlets and switches, GFCI and AFCI protection where required, permits, and inspections. They do not include drywall repair or painting, which are separate trades.
Factors That Affect Cost
- Number of stories: Two-story homes are more complex and expensive to rewire than single-story ranch homes because running new wire between floors requires more access points.
- Wall construction: Plaster-and-lath walls are harder to work in than drywall. Brick or stone exterior walls add complexity.
- Attic and crawl space access: Homes with accessible attics and crawl spaces allow electricians to run wire without opening as many walls. Slab-on-grade homes without crawl spaces are more expensive because wire must be routed through the attic or through wall openings.
- Number of circuits: Modern code requires more circuits than older homes had. More dedicated circuits for kitchens, bathrooms, and AFCI-protected bedroom circuits all add cost.
- Panel upgrade: A rewire almost always includes a new 200-amp panel. If the meter base also needs replacement, or if the utility needs to upgrade the service drop, those are additional costs.
Phases of a Rewiring Project
Phase 1: Assessment and Planning
Before any work begins, we walk through the home, inspect the existing wiring, identify access points through the attic, crawl space, and walls, and develop a wiring plan. We determine how many circuits the home needs, where new outlets and switches will go, and the most efficient routing for the new wiring. This phase also includes the permit application to Aiken County.
Phase 2: Rough-In Wiring
This is the most labor-intensive phase. We install new wiring throughout the house, running cables through the attic, down walls, through the crawl space, and between floors. This involves cutting access holes in walls and ceilings where needed, installing new electrical boxes for outlets and switches, and routing cables to each location. The goal is to run all new wiring while minimizing damage to walls and finishes.
During rough-in, we keep the old wiring energized as long as possible so you have electricity during the process. New circuits are connected to the new panel as they are completed, and old circuits are disconnected as they are replaced.
Phase 3: Panel Installation
The new 200-amp panel is installed and connected to the utility service. All new circuits are terminated at the panel with proper breakers, including AFCI breakers for bedroom circuits and GFCI breakers for wet locations. The old panel is removed and the opening is patched.
Phase 4: Device Installation
New outlets, switches, cover plates, and light fixtures are installed throughout the home. GFCI outlets go in kitchens, bathrooms, garages, and outdoor locations. All connections are made and tested.
Phase 5: Inspection
Aiken County inspectors examine the work at two stages: rough-in (before walls are closed) and final (after all devices are installed). Both inspections must pass before the project is considered complete. We schedule both inspections and address any corrections immediately.
Living in Your Home During Rewiring
Most homeowners stay in their homes during a rewiring project. Here is what to expect:
- Noise and dust: Cutting access holes and running wire creates dust and noise. We use drop cloths and clean up daily, but some dust is unavoidable.
- Temporary power interruptions: Individual circuits may be offline for hours or a day at a time as they are being replaced. We try to keep essential circuits like the refrigerator and at least one bathroom energized throughout.
- Access needed: We need access to every room, the attic, crawl space, and the panel area. Furniture may need to be moved away from walls in some rooms.
- Wall openings: Small access holes will be cut in walls and ceilings. We patch them with drywall when finished, but final taping, mudding, and painting are typically handled by a drywall contractor or the homeowner.
- Duration: Most rewiring projects take 5 to 10 working days depending on home size and complexity. We work standard business hours and communicate the schedule in advance.
Timeline Expectations
Here is a realistic timeline for a typical rewiring project in the Aiken area:
- Assessment and quote: 1-2 days
- Permit approval: 3-7 business days
- Rough-in wiring: 3-6 working days (depends on home size)
- Rough-in inspection: 1-3 business days after request
- Panel installation and device installation: 1-2 working days
- Final inspection: 1-3 business days after request
- Total project time: 2-4 weeks from permit approval to final inspection
Permit and Inspection Requirements
Whole-home rewiring requires an electrical permit from Aiken County. This is not optional and not something to skip. The permit ensures the work is inspected by a qualified inspector, which protects you as the homeowner. Unpermitted electrical work can create problems when selling the home, filing insurance claims, or if a fire occurs.
We handle the entire permit and inspection process. The cost of the permit is included in our quote. You do not need to visit the building department or coordinate with inspectors yourself.
Is Rewiring Worth the Investment?
Rewiring is not cheap, but consider what you get: a safe electrical system that will serve your home for 40-50 years, modern circuit protection that reduces fire risk, adequate capacity for today's electrical loads, and the elimination of a serious safety hazard. For homeowners in Aiken with older homes, rewiring is an investment in safety, functionality, and property value.
Ready to discuss rewiring for your home? Call Unity Power & Light at (803) 220-4491 for a free assessment. We will inspect your existing wiring, explain your options, and provide a flat-rate quote for the complete project.