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

Knob-and-tube replacement cost is confirmed after an on-site inspection, because price depends on your home’s layout, access, and required code upgrades. In practice, most of the budget is driven by how much wiring must be replaced and what must be updated to meet today’s safety standards. As electricians, we often find the existing panel is the choke point; new wiring needs breaker space and proper grounding to pass final testing. We regularly complete full rewires across the Denver area, including projects in Erie homes. Brothers offers transparent pricing with free estimates and financing options for larger rewiring projects.

Price usually shifts based on:

• How many rooms and circuits are getting new wiring
• Access conditions (finished walls, attics, or crawl spaces)
• Panel capacity upgrades or adding dedicated circuits for big appliances
• Safety upgrades like GFCI/AFCI protection and whole-home surge protection

Schedule an in-home evaluation to get a firm, itemized estimate before work begins.

Updated: 2026-06-29

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