Replacing knob-and-tube wiring is quoted after an on-site assessment, because cost varies by home size, access conditions, and how much of the system needs updating. The biggest driver is how extensive the rewire is (full home vs. partial), followed by required panel changes and safety upgrades to meet today’s code. Projects typically include post-service testing and documentation to confirm compliance. We perform these rewires regularly in the Anthem area and provide transparent, line-item pricing. A small technician insight: older plaster-and-lath walls often add more labor time than the wiring itself.
Key cost factors we evaluate:
- Square footage and number of circuits being replaced
- Access to attics, crawl spaces, and finished walls
- Need for panel upgrades, GFCI/AFCI protection, and surge protection
- Fixture, outlet, and switch replacements tied to the rewire
If insulation is brittle or there are signs of overheating, treat the project as urgent and avoid overloading those circuits until inspected.
Updated: 2026-07-03
Need help in Anthem, AZ? Call (928) 228-0604 or book online.