Knob and Tube Wiring Removal — Safe, Complete, and Code-Compliant
If your Ontario home still has knob-and-tube wiring, most insurance companies will either charge you a hefty premium or refuse to cover you entirely. We remove it safely and rewire your home to modern standards. ECRA/ESA 7014730.
What Is Knob and Tube Wiring and Why Does It Need to Go?
Knob-and-tube (K&T) wiring was standard in homes built before the 1950s. It uses ceramic knobs and tubes to route individual wires through your walls and ceilings — with no ground wire and no modern insulation.
The wiring itself was well-built for its time. The problem is that it was designed for a world with far less electrical demand, it has no grounding, and decades of aging, modification, and insulation added around it have created real safety risks. Many insurance companies in Ontario now require knob-and-tube removal before they will issue or renew a policy.
At KV Bear Electrical (ECRA/ESA 7014730), we remove knob-and-tube wiring and replace it with modern copper wiring, new circuits, and a properly grounded system. We handle the ESA permit, the inspection, and the documentation your insurance company needs.
How We Remove Knob and Tube Wiring
Assessment
We trace the existing K&T wiring throughout your home to understand the full scope. Some homes have had partial upgrades over the decades, so we need to identify exactly what is still active.
Planning
We map out the new wiring routes, determine circuit requirements, and provide a detailed quote. If a panel upgrade is needed, we include that in the plan.
Removal & Rewiring
We de-energize and remove the active knob-and-tube circuits, run new copper wiring, install modern outlets with proper grounding, and connect everything to your panel.
Inspection & Documentation
ESA inspection is completed and you receive a Certificate of Inspection. We also provide documentation for your insurance company confirming the K&T wiring has been removed and replaced.
Knob and Tube Removal Cost
Full knob-and-tube removal for a typical Ontario home ranges from $8,000 to $20,000+ depending on the size of the home, accessibility, and the amount of K&T wiring present. Homes with partial K&T are typically on the lower end. We provide a thorough assessment and detailed quote so you know exactly what the job involves.
Knob & Tube Wiring FAQ
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Knob & Tube Wiring Across Ontario
We provide knob & tube wiring services for homeowners across Durham Region, Northumberland County, Kawartha Lakes, and the GTA.
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Learn More →What Our Customers Say
“Kyle was extremely courteous, professional and friendly. He did a commendable job and even gave me a tip for a tripping issue without even having to look at it. He knows what he is doing. Would be my go to guy for anything electrical.”
“The entire process from quotation through contracting and performance of the work by Kyle was completed professionally and without any issues. The panel upgrade and EV charger installations are clean and neat and it is evident that Kyle takes pride in the quality of his work. Upon completion of the installations, Kyle ensured that the work site was 100% cleaned up.”
“KV Bear was recommended to us by a friend. We wanted to install a Tesla charger only to find out our electrical panel was known for faulting resulting in an electrical fire. He showed us signs of the panel arcing. The work was clean, professional, and fast! We are so happy we hired a professional.”