Is Your Historic Louisville Home Hiding a Dangerous Electrical Secret?

If you live in Kentuckiana, there’s a chance your home could still be wired with a system that’s over 70 years old and putting your property at risk. We’re talking about knob and tube wiring, a method used in homes built before the 1950s. This outdated wiring method simply can’t keep up with the demands of modern living.

What Is Knob and Tube Wiring?

Knob and tube wiring uses porcelain knobs to support wires and ceramic tubes to protect them as they pass through wood framing. Unlike modern electrical systems, knob and tube wiring doesn’t have a grounding conductor, making it unsafe by today’s standards.

In many parts of Kentuckiana, especially in historic neighborhoods like Old Louisville, Clifton, Butchertown, and parts of Southern Indiana, homes built in the early 20th century could still contain this kind of wiring.

Why Kentuckiana Homeowners Should Be Concerned

1. No Grounding = Higher Risk of Shock or Fire
   Knob and tube wiring lacks a ground wire, which is now standard in all modern electrical systems. Without it, there’s no safe path for excess electricity to travel, putting you at risk of electric shock or fire.
2. Brittle, Failing Insulation
   The rubber insulation on knob and tube wires deteriorates over time. With Kentuckiana’s fluctuating seasons, aging materials break down even faster, potentially exposing wires.
3. Not Built for Modern Loads
   Think about how many devices you plug in daily: computers, kitchen appliances, chargers, TVs. Homes wired with knob and tube weren’t built for this demand, increasing the likelihood of overheating and fire.
4. Insurance Complications
   Many insurers in Kentucky and Indiana won’t cover homes with active knob and tube wiring. Some won’t even issue policies unless it’s replaced, costing you time, money, and peace of mind.

Does Your Kentuckiana Home Have Knob and Tube?

If your home was built before 1950 and hasn’t had a full electrical upgrade, there’s a chance knob and tube wiring is still in place. Common signs include:

• Two-prong outlets (no grounding)
• Porcelain knobs or tubes visible in the basement or attic
• Flickering lights or fuses blowing frequently

Let Laswell help you bring your home into the modern age, safely and efficiently. Contact Laswell today to schedule a consultation. Call us at 502-231-6326 or fill out our contact form to get started.