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

Replacing knob-and-tube wiring is priced after an on-site evaluation because total cost depends on your home’s size, access, and any code upgrades tied to the project. The biggest cost driver is how much of the house must be rewired and whether the electrical panel and device locations need updating at the same time. Our licensed electricians rewire homes across Travis County and Central Texas, including legacy knob-and-tube systems. Homes with plaster walls and tight attic or crawl spaces often take longer because we fish new cable carefully to avoid unnecessary wall damage. If the old wiring is brittle, spliced, or covered by insulation, plan for a full replacement rather than piecemeal repairs.

For a firm quote, your electrician will look at:

• Square footage and number of circuits to replace
• Panel capacity or upgrade needs
• Access through attics, crawls, or plaster/lathe walls
• Replacement of switches, outlets, and fixture boxes

Schedule an in-home assessment to confirm scope, timeline, and a written price before work begins. <br/> Updated: 2026-05-06 <br/> Need help in Coupland, TX? Call (512) 956-7842 or book online. "Jason and Tony did great inspection of the whole electrical system of my house." — Bruce M.