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

The cost to replace knob-and-tube wiring is set after an on-site assessment because every home’s layout and code needs differ. The biggest price swings come from how much must be modernized beyond removing the old wiring. In many older houses we also find mixed-era wiring or concealed junctions that widen the scope. Our licensed electricians handle permitting and code compliance in Florida and regularly update older homes around Alafaya. Financing options and free estimates on replacements are available.

Expect higher or lower totals based on:

• Home size and how much of the wiring must be replaced
• Whether a new electrical panel, subpanel, or added circuits are required
• Adding GFCI/AFCI protection and outlet/switch modernization
• Access and finish work needs (attic/crawl access, plaster or drywall repairs)

Schedule an on-site wiring evaluation to get a firm, itemized price.

Updated: 2026-07-04

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