
Hidden Danger or Harmless Relic? The Truth About Knob & Tube Wiring in Metairie
What Is Knob and Tube Wiring—and Is Your Metairie Home at Risk?
If you live in an older home in Metairie, there’s a chance your walls are hiding a relic from the past—knob and tube wiring. This early electrical system might seem charmingly vintage, but when it comes to safety, it could be a real hazard.
So, what exactly is knob and tube wiring, and should you be concerned? Let’s plug into the facts and give you the peace of mind you deserve.
Knob and Tube Wiring 101
Knob and tube (K&T) wiring was the standard in homes built from the late 1800s through the 1940s. It uses ceramic knobs to support wires and tubes to protect them as they pass through wood framing. At the time, it was a brilliant invention. Today? Not so much.
Why It’s a Concern
Modern electrical demands have grown far beyond what K&T wiring was ever meant to handle. Think dishwashers, home offices, AC units, and wall-to-wall smart devices. Add age, wear, and a few DIY “upgrades,” and you’ve got a serious safety risk hiding behind your walls.

The Real Dangers Behind Old Wiring
Here’s where things get serious. Old knob and tube wiring often lacks a ground wire, which means your home has no backup to prevent electric shock or fire in case of a fault. Combine that with insulation degradation, exposed wires, and overloading, and you’ve got a recipe for disaster.
In fact, many insurance companies refuse to cover homes with active knob and tube systems. And if they do, you’re likely paying a premium.
Common in Metairie’s Older Homes
If your home sits in Metairie neighborhoods like Old Metairie, Bonnabel Place, or even near Airline Drive, you may very well have knob and tube wiring tucked inside your walls or attic. Homes built before the 1950s are especially likely to contain it.
The only way to know for sure? A licensed electrician can inspect your system and tell you what’s really powering your lights—and whether it’s time for an upgrade.
What Are Your Options?
If your knob and tube wiring is still intact and untouched, it might not be causing issues—yet. But waiting for a failure could put your family, your home, and your investment at risk.
Most homeowners in Metairie opt to:
Replace K&T wiring entirely with modern, grounded systems
Upgrade electrical panels and circuits to meet today’s safety codes
Add GFCI protection in kitchens, bathrooms, and outdoor areas
Rewire one room at a time, starting with high-demand areas like kitchens and living rooms
The Payoff: Peace of Mind and Property Value
Upgrading from knob and tube isn’t just about safety—it’s about security, insurance compliance, energy efficiency, and resale value. Buyers want homes that are safe, modern, and reliable. When your electrical system is up to date, you’re not just protecting your family—you’re investing in your future.
Ready to Replace Knob and Tube Wiring in Metairie?
If you suspect your home still runs on knob and tube wiring—or just want to make sure—it’s time to bring in a licensed electrician you can trust. Our team has worked in homes throughout Metairie, from historic properties to full remodels, and we know what it takes to upgrade safely and efficiently.
