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

Replacing knob-and-tube wiring typically falls within a full-home rewiring budget of $8,000–$20,000+. Costs vary most with the size of the home, access to wall and attic runs, and whether the electrical panel or service must be upgraded. Because knob-and-tube is older and often ungrounded, full replacement is usually safer than spot repairs, and we handle permits and inspections to keep the project code-compliant. Our licensed electricians regularly complete these projects for homeowners throughout the Greeley area. A practical field approach we use is sequencing critical rooms first so essentials stay powered during the work.

Expect your estimate to reflect:

• Number of circuits to re-run and any dedicated appliance or EV charger circuits
• Need for a panel or 200-amp service upgrade and available breaker space
• Patch and paint scope after wire pulls through plaster or drywall
• Adding GFCI/AFCI protection where required by code

An on-site evaluation is the right next step to confirm scope, timeline, and final pricing. <br/> Updated: 2026-05-05 <br/> Need help in Greeley, CO? Call (970) 444-5951 or book online.