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

Replacing knob-and-tube wiring typically costs $8,000–$15,000 for an average home. Costs vary with home size, how easily we can access existing runs, and whether your electrical panel needs an upgrade. Our complete rewire includes permits, safe removal of old wiring, new copper circuits with proper grounding, updated GFCI/AFCI protection, clear circuit labeling, professional drywall patching, final testing, and a compliance certificate. We usually work room by room and keep essential circuits powered to reduce disruption. We also plan for hot-attic conditions common around Baton Rouge, using high‑temperature‑rated cable and proper support.

To understand where you might land in the range:

• Hard-to-access runs in attics, crawlspaces, or behind plaster increase labor.
• Panel replacement or adding dedicated circuits raises materials and permit scope.
• More wall openings add time for patching and finishing.
• Systemwide GFCI/AFCI upgrades and grounding add parts and testing.

If you notice frequent breaker trips, warm outlets, or a burning smell, shut power to that circuit and have it inspected promptly. <br/> Updated: 2026-05-16 <br/> Need help in Port Allen, LA? Call (225) 314 8961 or book online. "Nick was extremely helpful and knowledgeable." — Renee B.