How much does it cost to replace knob and tube wiring?

The cost to replace knob-and-tube wiring is finalized after an in-home electrical inspection because it varies by home size, access to walls/attics, and any needed panel or circuit upgrades. Most projects run higher when plaster walls require careful fishing and when an old fuse panel must be upgraded to meet current safety code standards. Our electricians test all circuits, inspect the electrical panel, and then present written, Upfront Pricing. No Surprises! We perform rewiring in historic and mid-century homes in the Eagle Rock area and can coordinate panel upgrades, surge protection, and new circuits in one plan.

Key factors that determine your price:

• Square footage and number of circuits being replaced
• Condition of existing wiring and splices
• Access limitations that add labor time (finished plaster, tight crawl/attic)
• Required service upgrades such as 200–400 amp panels, meter boxes, and new circuits

Schedule a licensed inspection before opening walls so the scope, code items, and final price are clear and safe. <br/> Updated: 2026-06-08 <br/> Need help in Eagle Rock, VA? Call 5406851594 or book online.