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

Replacing knob and tube wiring is a major rewiring project, and final pricing is confirmed after an on-site electrical inspection. Costs vary most with the size and layout of the home and whether the electrical system needs upgrades to meet today’s code. In older homes, we often uncover partial knob-and-tube left behind past remodels, which can expand the scope. We handle full rewires and related upgrades throughout the Edgewood area with licensed, background-checked electricians. Kanon Electric provides upfront pricing and financing options for larger projects.

Key factors that typically affect price include:

• Total circuits and outlets to replace or add
• Accessibility (attic/crawlspace access and fishing new wire through finished walls)
• Panel capacity and whether a new main panel or subpanels are needed
• Required safety additions like GFCI/AFCI protection, smoke detectors, and surge protection

If you notice burning odors, sizzling at switches, or shocks, stop using affected circuits and call a licensed electrician immediately. <br/> Updated: 2026-05-07 <br/> Need help in Edgewood, WA? Call (253) 200-4670 or book online.