Replace outdated knob and tube wiring for a safer, more reliable home
Knob & tube wiring was never designed to handle today’s electrical demands, making it a fire hazard and insurance risk. Our expert rewiring services upgrade your home’s electrical system to be safe, efficient, and up to code.

Serving homeowners across Illinois, Iowa, and Wisconsin, we ensure your wiring meets modern safety standards while preserving the integrity of older homes.
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Understanding knob
and tube wiring

Knob and tube wiring was a common method of electrical wiring used in homes from the late 1800s until the 1940s. This system consists of single-insulated copper conductors that run through ceramic knobs and tubes within wall and ceiling cavities.

While it was state-of-the-art at the time, modern electrical demands have far outpaced the capabilities of knob and tube wiring.

Knob and Tube

Why replace knob and tube wiring?

If your home still has knob and tube wiring, upgrading is not just a recommendation—it’s a necessity. There are several reasons why replacing knob and tube wiring is crucial for the safety and functionality of your home.

increased fire hazard
The rubber insulation used in knob and tube wiring degrades over time, leading to exposed wires that can easily spark and cause fires. Additionally, the lack of a grounding conductor makes the system even more dangerous, as it cannot safely divert electrical surges.
insurance issues
Many insurance companies view knob and tube wiring as a high risk and may charge higher premiums or refuse coverage altogether. Upgrading your wiring can help reduce insurance costs and ensure that your home is fully covered.
building code compliance
Modern building codes have strict requirements for electrical systems. Knob and tube wiring does not meet these standards, so replacing it is often necessary to bring your home up to code, especially during renovations or when selling your property.
reduced home value
Homes with outdated wiring systems can be less attractive to buyers, potentially reducing your property value. Replacing knob and tube wiring can increase the marketability of your home and make it more appealing to prospective buyers.
incompatibility with modern electrical loads
Knob and tube wiring was designed for a time when homes had far fewer electrical devices. Today’s homes, with their numerous appliances, entertainment systems, and smart devices, demand far more electricity than knob and tube systems can safely handle. Overloading these circuits can lead to overheating and fires.

Whether you’re enhancing an existing home or building from the ground up, we are your trusted partner for all electrical projects. We combine technical expertise with personalized service to deliver solutions that meet your specific needs and exceed your expectations.

Where you'll find us.

Arrow Group proudly provides electrical knob and tube replacement throughout Illinois, Iowa, and Wisconsin.

Get in touch to start your next project!

Arrow Group service locations in Illinois, Iowa, and Wisconsin
Illinois

Galena, Rockford, Freeport, Moline, Peoria, Sterling, Dixon & more

Iowa

Dubuque, Davenport, Cedar Rapids, Iowa City, Bettendorf, Waterloo & beyond

Wisconsin

Platteville, Madison, Janesville, Monroe, La Crosse, Beloit & surrounding regions

Discover our full range of residential services
Whether you want to lower your energy bill or you want to outfit your home with a luxurious spa, we can help you achieve your goals and add value to your home.