Knob and tube wiring was commonly installed in homes built before 1950. While it was suitable for the electrical loads of the time, knob and tube wiring can be dangerous by today's standards. Rewiring a home with knob and tube wiring is highly recommended for safety, but it can also be complicated. This article will discuss some key considerations for safely rewiring your home while working around the existing knob and tube wiring.

Dangers of Knob and Tube Wiring

Knob and tube wiring has several inherent dangers that make rewiring advisable:

Preparing to Rewire with Knob and Tube

Careful planning and preparation is required when rewiring a home with knob and tube wiring:

Running New Wiring

When running new wiring, there are approaches to make the rewiring proceed efficiently and safely:

Removing Knob and Tube Wiring

As you finish each circuit, focus on safely removing the old knob and tube wiring:


Rewiring a home with knob and tube wiring takes time and care, but is extremely worthwhile for safety. With proper planning, safe procedures, and attention to detail, you can remove hazardous old wiring and modernize your home's electrical system. Hire and consult with licensed electricians when needed, and always place safety first.