Knob and Tube Wiring


Knob and tube wiring is a method of electrical wiring that was popular from the late 1800s to the 1940s — a common occurrence in Greater Boston area homes. However, electrical methods have advanced significantly since then, rendering knob and tube obsolete and even dangerous.

The dangers of knob and tube wiring:

  • Since knob and tube wiring isn’t grounded, it increases the likelihood of electrocution and damage to equipment
  • The age of knob and tube wiring lends itself to deterioration, brittleness and missing insulation that increases the risk of fires
  • Even if you have newer wiring, it’s common to find it improperly connected to the older system, causing shock hazard, reverse polarity issues, switched neutrals, overloaded circuits, and other dangers.


Your knob and tube wiring system is likely causing issues if you experience:

  • Flickering lights
  • A sizzling sound when switching lights on or off
  • Dimming lights when appliances start
  • Loosely-fitting plugs
  • Warm wires, extension cords, or fuse boxes
  • A repeatedly tripping breaker, or a breaker that never trips

If the dangers aren’t reason enough to remove knob and tube wiring, consider that it’s nearly impossible to insulate, insure, or mortgage a home with knob and tube. Although there are band-aid fixes, the best solution is knob and tube removal and replacement. Not only does it guarantee a safer house, but it’s a smart investment that adds significant value to your home. Knob and tube removal is a good idea in the long term to accommodate for future electrical needs and for reselling purposes.

Knob and tube removal isn’t an easy job, and may take 1-3 weeks depending on the size and construction of your house. It requires an in-depth diagnostic of your home by an expert technician. Fortunately, the experts at HomeWiz have over 25 years of experience with knob and tube removal, and we’ll do the job professional, efficiently, and safely.

Contact us today!

We proudly serve homeowners in the Greater Boston area. Call us for more information at 844-RINGWIZ.

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