the perfect solution to your wiring problems

Skillfully Replacing Knob And Tube Wiring In Your Home


After completing the final paint touch-ups on your home, you are ready to put it on the market. However, one last run-through with your real estate agent turns up an unanticipated problem: your home has a knob and tube wiring. This first generation electrical wiring method is not only obsolete in today’s day and age, but could be a potential safety hazard should something go wrong. Anytime a home is sold, any K&T wiring has to be removed per the buyers’ contract and most electricians won’t touch the stuff because they don’t have the skillset to remediate the problem correctly. Fortunately, Chesapeake Electric is up for the challenge! Our experienced team is led by a Master Electrician whose thoroughness and knowledge of knob and tube remediation provides the perfect solution to your wiring problems.


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What is knob and tube wiring?


Knob and tube wiring was an early standardized electrical method in North American buildings from 1880 to the 1940s. It is very common in the historical districts of Annapolis, Baltimore, Ellicott City, and Washington, D.C. K&T wiring consists of insulated copper conductors that pass through drilled holes in lumber framing that are protected by porcelain insulating tubes. These tubes are supported along their length by nailed-down porcelain knobs.

Knob Tube Remediation

Common Problems With Knob & Tube Wiring

While the original installation of knob and tube wiring is at times superior to modern Romex wiring and the porcelain components have an almost unlimited lifespan, there are several disadvantages to this dated wiring method:

  • Though not inherently dangerous, knob and tube wiring is not permitted in any new construction due to the fact that it can be a fire hazard in buildings where insulation envelops the wiring. Insulation cannot be blown or laid on this wiring.
  • K&T is also an ungrounded electrical system, which means it cannot be used with 3-prong appliances. Without a grounding wire, there is a higher risk of electrical fires and damage to sensitive equipment.
  • In addition, most homeowners’ insurance policies do not cover electrical hazards in homes where knob and tube wiring is found, increasing your out of pocket expenses should your home ever have an electrical problem.

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Knob Tube Remediation
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Knob And Tube Remediation Done Right


When it comes to knob and tube replacement, Chesapeake Electric is happy to help! We have the skills to assess your situation and complete a full knob and turn remediation in no time at all. Our licensed and insured electricians have over 10 years of experience dealing with this outdated wiring method, so you can count on us to provide you with the professional services you need to completely overhaul your system. We take a great deal of pride in the quality of our work and our dedication to complete customer satisfaction, so give us a call today for an In-Home Consultation estimate!


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Had 240 circuit and alarm system installed. The quality of the work was excellent and the crew was respectful and skilled. Could not imagine a better experience.
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Colim was hard working & diligently performed all his tasks. Kept me informed about his progress & important things I needed to know. He was very knowledgeable & efficient.
Maureen Diaczok
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Zachary came out Friday evening and was able to find the issue quickly. He was friendly and it was a great experience.
Jamie Plusfive
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Great service. Bryan and Gary represent their company with fantastic customer service and knowledge of the trade.
Kenneth Thomas
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Colm came out this morning to install a ceiling light fixture for us. He did a great job and offered helpful notes about the new fixture. We are repeat customers of Chesapeake Electric and will call them again in the future.
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Where do I begin to tell you about Casey Absolutely the best tech i have ever had in my house. He took the time to fully explain all the work that needed to be done. Very professional and easy to talk to. This company should be very proud to have someone like Casey working for them. Bravo.
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Whether you require an emergency electrician or have an in-depth electrical project, you’ll be happy you chose Chesapeake Electric.