If you live in one of Northern Virginia’s historic neighborhoods—whether it’s a mid-century colonial in Arlington or a 1920s bungalow in Alexandria—your home’s character is its biggest asset. However, its hidden interior wiring might be its biggest liability.
Rewiring a home is a significant investment, but understanding the cost drivers can help you budget effectively. In 2026, most full-home rewiring projects in Northern Virginia range from $6 to $12 per square foot, but several specific factors will determine where your project falls on that spectrum.
1. The Size and Complexity of Your Home
Size is the most obvious factor. A 1,500-square-foot home typically costs between $9,000 and $18,000 to rewire, while larger 3,000-square-foot properties can exceed $30,000. Beyond square footage, the number of stories and the complexity of the layout—such as additions or finished basements—will increase labor hours.
2. Accessibility (Walls vs. Crawlspaces)
The “mess factor” directly impacts your bottom line.
- Easy Access: If your home has an unfinished basement or a large attic, technicians can “fish” new cabling through the walls with minimal disruption.
- Difficult Access: If your home has lath-and-plaster walls or a slab foundation with no crawlspace, we may need to open sections of drywall. This adds 25% to 30% to the total cost due to the necessary demo and subsequent repair work.
3. Type of Existing Wiring
The material being replaced changes the scope of work:
- Knob-and-Tube: Common in pre-1950s homes, this requires a total removal and is the most expensive to replace (often $12,000–$35,000+).
- Aluminum Wiring: Popular in the 60s and 70s, aluminum poses a fire hazard. While “pigtailing” is a cheaper repair, a full rewire is the only way to permanently solve the safety issue and meet current Virginia building codes.
4. Panel and Service Upgrades
A rewire almost always requires an electrical panel upgrade. Modern code now requires 200-amp service to handle today’s technology. If your home currently has 60-amp or 100-amp service, a “heavy-up” typically adds $2,500 to $4,500 to the total project cost.
5. Added Modern Necessities
While the walls are open, many homeowners choose to add high-value electrical upgrades that increase the home’s resale value:
- EV Charger Installation: Dedicated circuits for your garage or driveway.
- Smart Home Tech: Hardwiring for smart hubs, security cameras, or recessed lighting.
- Dedicated Lines: New appliance wiring for high-draw items like mini-splits or kitchen renovations.
6. Permits and Inspections
In Northern Virginia, rewiring is a “trades permit” project. In Fairfax or Arlington County, permit and inspection fees generally range from $500 to $1,000. Hiring a licensed professional from McLean Electric Co ensures that all work complies with the 2023 National Electrical Code (NEC), protecting your insurance coverage and your family’s safety.
Peace of Mind Since 1994
Rewiring is a “once-a-lifetime” project for your home. Done correctly, it ensures another 50+ years of safety and efficiency. At McLean Electric Co, we provide transparent, upfront quotes so there are no surprises once the work begins.
Is your old wiring keeping you up at night? Contact McLean Electric Co today for a comprehensive rewiring assessment!
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