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® to Replace Old BXKuhlman Electric® specializes in replacing first-generation ungrounded BX. This early armored cable first appeared in the early 1900s. It relied on its metal jacket for grounding, and over time those connections loosen and fail. The original rubber-and-cloth insulation also becomes brittle and can crumble inside boxes. If your home still has ungrounded BX, hiring Kuhlman to replace it is a safety improvement that will protect your family and home.
BX became common through the 1920s–1940s. It is not the same as today’s code-compliant armored cable. Early BX had no dedicated ground wire and was often installed with two-prong outlets. Many homes still have this aging system hidden above ceilings and behind walls.
If you know your home has old ungrounded BX, now is the time to address it. Call Kuhlman Electric® today and have us evaluate your wiring and bring your home into the modern era.
Kuhlman Electric® understands that old wiring is an easy problem to ignore. It's out of sight, out of mind. But like Knob and Tube wiring, ungrounded BX is close to 100 years-old, (or older). Replacing it will increase the value of your home and solve the following safety concerns
Its a Fire Hazard: If the hot wire touches the metal casing, the cable shorts and becomes a potential start a fire.
No Ground Wire: Ground wires better assure shock prevention, yet first generation BX has no dedicated ground.
Shock Hazard: Without a ground wire, the BX circuits pose a greater electrocution risk.
Loose Connections: The BX metal casing is meant to provide a ground path, but fails when connections loosen.
Insulation Failure: The decades old cloth and rubber insulation deteriorates, increasing a short circuit risk.
Overloaded Circuits: Smaller gauge BX was bot designed to meet the demands of today's electrical devices.
Violates Code: Ungrounded BX is not compliant with 3-prong grounded outlets and current electrical codes.


® Wires With Minimal Disruption
Many homeowners delay rewiring because they fear the mess. When you hire Kuhlman Electric® a full electrical upgrade does not require gutting your walls. Rewiring an older home involves more than pulling new cable — it requires planning, precision, and respect for the structure itself. We know how to do it with minimal disruption.
Click below and schedule an estimate to have your unsafe BX Cable wiring replaced.
BX wiring was often installed alongside knob-and-tube wiring and ungrounded Romex wire. In certain years (typically during the 1920s and early 1930s), electricians could choose from all three kinds of wiring. In some cases, electricians at that time stuck with one style of wiring throughout. But we more frequently see all three styles mixed together in one junction box.. You may be able to go into your basement and quickly identify all three types of wiring.
Multiple generations of wiring in one system increases complexity, troubleshooting difficulty, and safety concerns. The practice would not be permitted under today's NEC National Electrical Code.
Kuhlman Electric® has the skill and experience needed to convert the multiple electrical system in your home to modern wiring. Schedule an in-home visit and price quote

You should consider replacing BX wiring when it is ungrounded, showing signs of wear, or still operating as part of an older electrical system that does not meet modern safety standards. Many homeowners also choose to replace it during renovations, when adding new electrical loads, or if an electrician identifies safety concerns during an inspection.
Old BX wiring can be a safety concern, particularly in homes where it is ungrounded or has deteriorating insulation. Over time, the protective coating and metal sheathing can wear down, increasing the chance of electrical faults, shock hazards, or overheating. Because of these risks, homeowners with BX wiring are advised to have it replaced with modern grounded wiring.
The cost of BX wiring replacement depends on the size of your home, how much wiring needs to be replaced, and how accessible it is within walls and ceilings. Because every home is different, Kuhlman Electric® provides an upfront, honest estimate after we evaluate your system.
We take great care to minimize disruption to finished walls and ceilings whenever possible. Our approach depends on your home’s layout and how the existing wiring is installed, but our goal is always to complete the work as cleanly as possible. Because many of our rewiring projects are in historic homes, our electricians are experienced in working within existing structures while keeping the process as controlled and non-invasive as possible.
® - It's Electric!Kuhlman will be at your house in the flick of a switch.
And if the switch is broken, we'll be there even quicker!

Don't wait to replace the unsafe ungrounded BX wiring in your home. Hire Kuhlman Electric® to complete your rewire project now, and pay it off slowly over time with our 18-month or 5-year financing plans. Ask your Kuhlman® Rep for details on all of our financing options.



























