Do I need to replace the knob and tube wiring?

It is also not difficult to replace the knob and tube wiring.

Uh-oh. It's best to plan on having it replaced by a safer and more modern electrical system. Knob and tube wiring replacement costs typically range between $5,000 to $9,000+ for a 2 story home. The cost will go up by approximately $2,000 for every additional story.

You might also wonder, "How long does knob-and-tube wiring last?" 100 years

How much does it cost for knob and tube wiring to be replaced?

Rewire a 1,500-to 3,000-square-foot house with knob-and-tube wiring. Expect to spend around $8,000-$15,000 To meet future electrical needs, many contractors recommend 200-amp service.

Do you need to take out the tube and knob wiring?

Information about Knob-and Tube Wiring: This wire does not have a bond wire (aka ground), and cannot be used to service three-pronged appliances or outlets. Although it is obsolete, there are usually no codes that require its complete elimination. Different jurisdictions treat it differently.