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

Replacing knob-and-tube wiring is priced after an on-site assessment because total cost depends on how much must be rewired, how accessible the runs are, and any required upgrades. The biggest driver is the scope of new circuits versus existing, plus how difficult it is to fish cable through finished walls and attics. We rewire older homes throughout the Kennesaw State University area with code-compliant solutions and clear, upfront estimates.

Key factors that change price:

• Full vs partial rewire and the number of circuits replaced
• Panel work (for example, moving to a new breaker panel or 200-amp service when needed)
• Adding grounded/GFCI outlets, dedicated circuits, or whole-home surge protection
• Access conditions and patching needs after fishing wires through plaster or tight spaces

Most homes with brittle insulation or ungrounded runs merit full replacement rather than piecemeal repairs; treat any burning smell or scorch marks as urgent and switch off the affected circuit. Schedule an on-site evaluation to receive a firm, written price before any work begins.

Updated: 2026-07-01

Need help in Kennesaw State University, GA? Call (404) 947-6851 or book online. "We would definitely highly recommend Aardvark electric and especially Ellie and his team." — Crystal C.