Knob & Tube Wiring Replacement & Removal

We safely remove and upgrade outdated wiring systems—without damaging the charm of your antique home.

What Is Knob & Tube Wiring?

Knob & tube (K&T) wiring was commonly installed in homes from the 1880s through the 1940s. While innovative in its day, this system no longer meets modern electrical codes or safety expectations. It lacks grounding, has insulation that breaks down over time, and can become a serious fire hazard.

If your home still contains active knob & tube wiring, it’s time to plan for a safe and sensitive upgrade.

Why Remove It?

No Grounding

K&T systems can’t support modern grounded outlets or appliances.

Overloaded Circuits

Old systems were never meant for today’s power needs.

Aging Materials

Insulation becomes brittle, increasing the risk of shorts and fire.

Insurance Headaches

Many providers will not insure homes with active knob & tube wiring.

Our Approach: Clean, Careful, Respectful

At CJH Electrical, we specialize in removing knob & tube wiring from historic homes in a way that respects the structure. We:

- Identify all live K&T circuits

- Develop a step-by-step plan for safe removal

- Replace with modern, grounded wiring to current NEC code

- Carefully fish wires through walls, floors, and ceilings with minimal impact to finishes

What’s Included

Full circuit mapping and testing

Removal of active K&T wiring

New grounded circuits and outlets

Panel and breaker upgrades, if needed

Permitting and inspection support

Final walkthrough and labeling

Service Area

We remove and replace knob & tube wiring in:

- Southern & Central New Hampshire

- Southern Maine

- Northeastern Massachusetts

CJH Electrical LLC

Manchester, NH

Licensed & Insured in NH, ME & MA

Let’s Make Your Home Safer

Don’t wait for a problem. Upgrade your system today—and protect what matters most.

Contact Us