Knob and tube wiring was commonly installed in homes built before 1950. This old wiring system features insulated wires run through open air, mounted on ceramic knobs and tubes. While knob and tube wiring was suitable for the time, it can present safety hazards by modern standards. Rewiring a home is the only way to fully eliminate the risks. However, this is a complex process best left to licensed electricians. Attempting a DIY rewire with knob and tube can result in electrocution, fires, and other dangers.

Dangers of Knob and Tube Wiring

Knob and tube wiring lacks many crucial safety features of modern electrical systems:

These inherent flaws make knob and tube wiring obsolete and hazardous in modern homes.

Dangers of DIY Rewires

While the desire to save money is understandable, attempting to rewire a home yourself has serious risks:

Ultimately, these dangers make DIY rewires irresponsible and life-threatening.

Safest Approach: Hire a Licensed Electrician

To safely rewire your home and eliminate knob and tube wiring, your best and only sensible choice is hiring a licensed electrician. Though more expensive than DIY, a professional rewire offers huge advantages:

Though a significant investment, a professional rewire is absolutely worth the peace of mind of having a safely modernized electrical system. Attempting it yourself simply isn't worth the risk.


While knob and tube wiring served homes well in the past, it has no place in the modern electrical landscape. The plethora of safety hazards make DIY rewiring unwise and dangerous. Hiring professional electricians remains the only responsible way to rewire your home and protect your family's wellbeing. Though more costly, view it as an investment into your home's safety and value.