If your home was built before the 1950s, there’s a chance it still has knob-and-tube wiring. While it may have done its job for decades, this old system is no longer safe or up to modern code. Many insurance companies won’t cover homes that still have it, and home inspectors often flag it as a serious concern.

For homeowners in Central Florida, replacing knob-and-tube wiring is one of the smartest upgrades you can make to protect your home, your safety, and your investment.

What Is Knob-and-Tube Wiring?

Knob-and-tube wiring was the standard electrical system in homes built from the 1880s to the 1950s. It uses ceramic knobs to hold the wires in place and ceramic tubes to protect them where they pass through framing.

That might sound charmingly vintage, but in today’s world, it’s dangerously outdated. Knob-and-tube systems have no ground wire, the insulation breaks down over time, and they weren’t designed to handle the power demands of modern life. Old insulation can become brittle and crack, leaving live wires exposed inside your walls or attic.

Why It’s a Problem

Here are a few of the biggest reasons homeowners are replacing knob-and-tube wiring across Central Florida:

• Fire hazard: Cracked insulation and outdated wiring can cause overheating and sparks.

• No grounding: There’s no safe path for electrical faults, increasing the risk of shock.

• Insurance problems: Many insurance companies won’t issue or renew a policy on a home with knob-and-tube.

• Inspection failures: Homes with original wiring often can’t pass inspection when being sold.

• Overloaded circuits: Modern appliances, air conditioning, and technology can overwhelm old systems.

If you’ve noticed flickering lights, tripped breakers, or outlets that don’t feel quite right, there’s a good chance your wiring needs attention.

Upgrading to Modern, Safe Wiring

The good news is that upgrading doesn’t have to mean tearing your home apart. Experienced electricians can replace knob-and-tube wiring efficiently and cleanly, often with minimal drywall damage.

A full rewire brings your home up to today’s electrical code, adds grounding for safety, supports the power load of modern appliances, and helps protect your investment. It can even improve your home’s value and help you qualify for better insurance coverage.

A Real Example from Central Florida

Not long ago, our team at In Charge Electric helped a homeowner restore a 1940s cottage that still had active knob-and-tube wiring. The home’s inspection report required it to be replaced before the sale could go through, and the insurance company wouldn’t issue coverage until the system was updated.

We completed the rewiring in just three days, replaced the outdated system with safe, modern wiring, and made sure everything passed inspection on the first visit. The result was a safer, more reliable home that met code — and a homeowner who could move forward with confidence.

Why Homeowners Trust In Charge Electric

For over 15 years, In Charge Electric has been Central Florida’s trusted name in residential electrical service and repair. Our licensed electricians each have more than 20 years of experience and are background-checked, drug-free, and fully trained to deliver the highest level of service.

When you call In Charge Electric, you’ll always speak to a real person who works for us — not a call center. You’ll get honest, up-front pricing before any work begins, dependable appointment times, and the best warranties in town. We stand behind our work and ensure you’re 100% satisfied before we leave your home.

Ready to Replace Your Knob-and-Tube Wiring?

If your home still has knob-and-tube wiring, don’t wait until it becomes a problem. Upgrading your electrical system now will bring your home up to code, improve safety, and help you avoid costly insurance or inspection issues later.

Call In Charge Electric today at (352) 350-7878 or visit our contact page to schedule your inspection. You’ll talk to a real person, get a clear quote, and know your home is in good hands.

Worry-free electrical repair. Done right the first time.

Frequently Asked Questions about Knob & Tube Wiring Replacement

1. Can I keep some of my old knob-and-tube wiring and just replace part of it?

In most cases, it’s best to replace all of it. Mixing old and new wiring can create unsafe connections and fail inspection. A full replacement ensures your entire system meets code and functions safely.

2. How long does it take to replace knob-and-tube wiring?
Most homes can be completely rewired in three to five days, depending on the size of the house and the complexity of the system. We’ll give you a clear timeline before work begins.

3. Will rewiring damage my walls or ceilings?
Professional electricians can usually access wiring through small openings and existing spaces, minimizing drywall damage. If any areas need repair, we’ll make sure they’re clean and ready for your painter or drywall finisher when we’re done.

4. How much does it cost to replace knob-and-tube wiring?
The cost depends on your home’s size, layout, and how accessible the old wiring is. We always provide an upfront, no-surprise quote before starting any work, so you’ll know exactly what to expect.