Knob-and-tube wiring replacement cost varies by home size, access, and required upgrades, and Appleton Campbell confirms final pricing after an on-site inspection. Most of the price comes from how much of the house needs new circuits and whether the electrical panel must be upgraded. Our electricians routinely handle projects like this throughout the Bealeton area, and we offer a $29 Whole Home Electrical Safety Inspection to assess scope and code needs. In many older homes, sections of knob-and-tube remain behind finished walls, so the project scope can change once we open access. If wiring is brittle or ungrounded, plan for a full rewire; if it’s isolated to one area, a targeted replacement may be sensible; if it’s safe and accessible, monitoring until a planned remodel can be reasonable.
Key cost drivers to discuss during the estimate:
- Total square footage and number of affected circuits
- Attic/crawlspace access versus plaster removal and drywall repair
- Panel upgrade, smart panel options, and required GFCI/AFCI protection
- Add-ons like whole-home surge protection or new outlets/lighting
Turn off any suspect circuits and avoid overloading old outlets until a licensed electrician evaluates the system.
Updated: 2026-08-02
Need help in Bealeton, VA? Call (540) 205-3447 or book online. “They had a mess to replace my breaker box, installed a whole house surge protector, and replaced several switches.” — Lesley O.