Replace old knob & tube wiring in your home

Knob-and-tube wiring is an early method of electrical wiring in certain buildings and was really common until the early 1940s. It consisted of single-insulated copper conductors run within wall or ceiling cavities, passing through joist and stud drill-holes via protective porcelain insulating tubes, and supported along their length on nailed-down porcelain knob insulators.

Where conductors entered a wiring device such as a lamp or switch, or were pulled into a wall, they were protected by flexible cloth insulating sleeve called loom. The first insulation was asphalt-saturated cotton cloth, then rubber became common. Wire splices in such installations were twisted together for good mechanical strength, then soldered and wrapped with rubber insulating tape and friction tape (asphalt saturated cloth), or made inside metal junction boxes.

Compared to modern electrical wiring standards, knob-and-tube wiring methods have several serious shortcomings. This wiring method never included a safety grounding conductor and allowed for splicing of wiring in walls without a junction box which are both not allowed in todays code.

Knob-and-tube wiring must always be handled by certified and insured professionals. If you have knob-and-tube wiring in your home or business, call us today to get started.

Get a free quote

When to replace?

If you encounter any of these issues, your wiring may need to be replaced:
  • Flickering or dimming lights
  • Frequent tripping of circuit breakers
  • Burning smell
  • Scorth marks around outlets
  • Inconsistent power supply
  • Visible wear-and-tear

New amenities?

We recommend replacing if you plan to have any of these items in your home:
  • Hot tub/spa or sauna
  • Electric vehicle
  • Electric or induction cooktop
  • Kiln
  • Home renovation
  • Future-proofing

How It Works

Step 1: Free Assessment & Quote

Our process start with a free in-person assessment of your meter/panel and discuss your plans for your home, including additional major electrical loads. We provide a quote on the spot or shortly after.
Step 2: Our team takes care of things end-to-end

We handle permits and utility inspections and install your new meter/panel safely and professionally. This is typically a full-day process, but you're only without power for a few hours.
Step 3: Guaranteed Peace of Mind

All electrical work we do is backed by a two-year guarantee, which covers repairs and maintenance on your meter/panel and related wiring. If something happens, we'll make it right!

Call Us (801) 466-1672

Northern Electric Company
3414 S 300 W
South Salt Lake City, UT 84115
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