Older homes have character, but outdated knob-and-tube wiring can create safety concerns. JDV Electric replaces old wiring with modern electrical systems designed for today’s needs. Not sure what’s behind your walls? We can inspect and identify any remaining knob-and-tube wiring.
Identify Active Knob-and-Tube Wiring
Seeing old wiring does not always tell you whether it is still energized. JDV Electric can inspect the electrical system and determine which areas remain connected. That gives you a clear scope before replacement begins.
Remove and Replace Outdated Wiring
Active knob-and-tube circuits can be taken out of service and replaced with modern wiring appropriate for the home's electrical system. The goal is not simply to remove old materials—it is to provide properly wired circuits for the areas they serve.
Add Modern Grounded Circuits
Because traditional knob-and-tube systems lack an equipment grounding conductor, replacement provides an opportunity to install modern wiring designed for today's electrical devices.
Coordinate With Broader Rewiring Needs
Some homes contain knob-and-tube wiring in only part of the property. Others have it throughout multiple floors or circuits.
JDV Electric also provides whole-home rewiring, so the project can be scoped around what is actually present rather than assuming every property requires the same amount of work.
Knob-and-tube wiring uses separate hot and neutral conductors supported by porcelain knobs and tubes. Unlike modern wiring, the original system does not include an equipment grounding conductor.
Consider an inspection if:
Avoid touching exposed wiring to identify it yourself. An electrician can determine what is still active and how much of the system needs attention.
When you invite an electrician into your home, you deserve more than a quick fix. Here’s why homeowners throughout your neighborhood and even beyond, choose JDV Electric as their preferred electrical contractor.
We’re Locally Owned & Operated
We’re a family-owned electrical company serving homeowners in Lansdowne, Delaware County, and surrounding Philadelphia-area communities.
We Believe in Transparent Pricing
We explain what we find, what we recommend, and what the work will cost so you can make an informed decision.
We Are Honest
We look at your home’s actual electrical needs, not at how much work we can sell you. Our goal is to recommend what’s appropriate for your system.
We Arrive Prepared
Our service vehicles are stocked with the tools and equipment we need to handle a wide range of residential electrical problems.
We Give You Clear Recommendations
Whether you need a repair, electrical panel replacement, upgrade, or circuit installation, we’ll explain what we recommend and why.
Knob-and-tube wiring replacement can be a significant investment in your home. We offer financing options to help spread the cost over time and make this important electrical upgrade more manageable.
Look for porcelain knobs, ceramic tubes, and separate older wires in accessible areas such as an unfinished attic or basement. Do not touch exposed conductors. An electrical inspection can confirm whether the wiring is present and still active.
No. The scope depends on where the wiring remains. If only part of the home still uses it, the replacement may be limited to those circuits. Widespread knob-and-tube may require a broader rewiring project.
Traditional knob-and-tube systems do not include the grounding conductor used in modern residential wiring. New grounded wiring provides the electrical configuration expected by many modern devices and equipment.
It can. Some insurers may have restrictions, inspection requirements, or different underwriting rules for homes with active knob-and-tube wiring. Requirements vary by insurer, so homeowners should confirm directly with their insurance provider. Insurance concerns are also a common reason owners of older homes across Delaware County, Chester County, lower Montgomery County, Philadelphia, and surrounding Pennsylvania communities replace knob-and-tube wiring.
Having it evaluated before a major renovation can make planning easier. If walls or ceilings will already be opened, you can understand the electrical scope before other finished work is completed.
The electrician will consider where active knob-and-tube remains, which circuits it serves, accessibility, previous electrical changes, and the overall layout of the home.
Our residential electricians provide knob-and-tube wiring replacement to homes across Delaware County, Chester County, lower Montgomery County, Philadelphia, and surrounding Pennsylvania communities.
JDV Electric can inspect your electrical system, explain what needs to be replaced, and recommend an appropriate next step for your Lansdowne or Delaware County home.
JDV Electric provides reliable, family-focused electrical services to homeowners.
777 West Providence Road,
Unit B Lansdowne, PA 19050
Phone: (484) 462-7228
109 E Evans Street, Suite 106
West Chester, PA 19380
Phone: (484) 826-7798
Mon–Fri: 7AM – 6PM
Saturday & Sunday: Closed
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