Knob and Tube Replacement2023-08-02T13:28:27+00:00


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Toronto’s Premier
of Knob &
Tube Replacement

Replacing knob-and-tube wiring and upgrading to modern, more conventional, 100% copper wiring is often necessary and almost always a good idea. Why? Back in the day, knob-and-tube wiring was the standard practice for electricians installing residential wiring and circuitry. What has happened over time, however, is that the knob-and-tube wiring in vintage homes in Toronto suffers from wear and tear. The covering has dried out, cracked and/r crumbled – even chewed on by rodents. That means it’s nearing the end if its useful life.

Modern appliances & fixtures require that a bonding wire be connected to the outlets. Knob-and-tube wiring systems are missing this. If you have such a system, it’s time for an upgrade to 100% copper wire.



By upgrading from your existing knob-and-tube wiring to modern, 100% copper wiring, you’re bringing your vintage home into 21st century wiring & circuitry. With KNT Electric in Toronto, you’ll get

  • Your own Project Manager (Licensed Master Electrician) from start to finish
  • Detailed progress reports & electrician’s report
  • Furniture protection & patch-up for walls & ceilings
  • Minimally intrusive job; full clean-up at end

Get rid of the fire hazard, insurance liability and inadequate wiring of your knob-and-tube system. Contact us today to get a free, no-obligation quote for a knob-and-tube wiring replacement in Toronto.


Chris M

Removal of old knob and tube wiring. Work done promptly and on-time and on-budget. Work place always cleaned up at end of day and power always restored. Very happy with the quality of the work done.

CB in Toronto

Toronto, ON


Hard to find helpful and honest guys in trades, but KNT are those guys. Tim came to our house to review our breaker panel. A previous electrician said we would have to replace the whole thing ($3-4K) and I wanted to get someone else to confirm that. Tim was honest and said it just needed a little cleaning and rust removal as it wasn’t terrible. Walked me through for 10 minutes what I would have to do and didn’t charge us at all. Thanks again for you honesty.

CB in Toronto

Toronto, ON

Knob & Tube Removal And Updates, Fixture Installations

“Tim and Bill were extremely helpful and knowledgable. The quote and the final invoice was so detailed and they were happy to explain the process and make recommendations. The daily team was very professional and worked efficiently to make the process as smooth as possible. They cleaned up every day and when all was finished, left us small neat patches to re-paint. We are SO thankful to have found”

CB in Toronto

Toronto, ON

Knob And Tube Replacement In Century Old Home

“ Excellent work. Tim’s crew were professional in getting the work done on time as promised. As promised, most of their holes were the size of a golf ball and as invasive as possible. This was important to us as we wanted to minimize the cost of repairing our plaster walls. I would however recommend going with a professional taper to re-plaster the walls. All in all, no complaints.”


Toronto, ON

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frequently Asked Questions

What are the signs that indicate I need to replace my knob and tube wiring?2023-08-02T11:06:37+00:00

Several signs may indicate the need for knob and tube wiring replacement:

Frequently blown fuses or tripped circuit breakers: This can indicate that the wiring cannot support the electrical load.

Flickering or dimming lights: It can be a sign of a defective wiring connection or an overloaded circuit.

Buzzing or crackling sounds from outlets or switches: This can indicate frayed or failing wiring.

Warm or discolored outlets or switches: These may be signs of electrical arcing or overheating, which present a fire risk.

Insulation deterioration: It’s obvious that replacement is required if the insulation around the wires is deteriorating or collapsing.

What are the benefits of replacing knob and tube wiring?2023-08-02T11:02:06+00:00

Replacing knob and tube wiring offers several benefits:

Enhanced safety: Modern safety regulations are followed by new electrical wiring systems, which offer improved safety against fire risks and electrical shocks.

Increased capacity: Higher electrical capacity provided by a contemporary electrical system enables you to utilize more gadgets and appliances without overloading circuits.

Code compliance: Current electrical code requirements are frequently not met by knob and tube wiring, so having it replaced guarantees that your property complies with all necessary safety criteria.

Improved insurance coverage: Modern wiring upgrades can make it simpler to get affordable, comprehensive insurance coverage for your home.

Why should I consider replacing knob and tube wiring?2023-08-02T10:59:30+00:00

There are several reasons why replacing knob and tube wiring is recommended:

Safety: Knob and tube wiring is antiquated and could present serious safety problems because of issues like deteriorating insulation, a lack of grounding, and insufficient capacity for current electrical demands.

Insurance: Knob and tube wiring is viewed as a fire threat by many insurance companies, who may either refuse coverage or increase premiums.

Home value: The resale value of homes with knob and tube wiring may be lower because prospective buyers are frequently concerned about the risks and the expenses of replacement.

Electrical demand: The electrical needs of modern electronics and appliances were not intended to be handled by knob and tube wiring, which can result in overloaded circuits and increased fire risks.

What is knob and tube wiring?2023-08-02T10:41:00+00:00

Knob and tube wiring is an early electrical wiring system that was commonly used in homes from the late 1800s to the early 1940s. It is made up of insulated copper conductors that are shielded from electrical contact with the building materials and supported by porcelain knobs and tubes.