Knob and tube wiring was installed between the late 1800s and the 1940s and is commonly found in the attics, walls, or crawl spaces of older homes in greater Toronto and the surrounding area. The wiring is insulated in black cloth and the knobs are white ceramic cylinders. Modern wiring is white or yellow and much, much safer.

Knob & Tube Replacement & Inspection Services

Knob and tube wiring is not grounded, and at Belyea Bros. Heating, Cooling & Electrical, we found that the wiring has often been modified in ways that increase risk. The wiring is typically poorly insulated, stretched, and showing an alarming amount of wear and tear. In most cases, the outdated writing system can’t handle the energy demands of a modern household. Plus, the outer covering of knob and tube is designed to dissipate heat created by electric flow. With today’s insulation practices, that causes a problem. The packed insulation restricts heat dissipation.

Have your old knob & tube wiring replaced by Belyea Bros. Heating, Cooling & Electrical!

Contact Belyea Bros. Heating, Cooling & Electrical at (416) 425-1200 for a complete inspection of your wiring anywhere across Toronto, ON. Our licensed electricians can help you determine the best and safest course of action. Replacement is definitely something to consider and our team is up to the task. We are happy to answer questions, provide clear information, and ensure a solution that satisfies.

Tube Inspections, Tube Replacements & Knob Replacements in Toronto, ON





We hired Belyea Brothers to install a ductless AC on our home’s 3rd floor. Booking an assessment with Steve was quick and easy, the quote was prompt and professional with all the information needed (and fair pricing), and they installed everything one week later as discussed…

Lauren A.





I contacted Belyea to replace a part on my water tank and they had it quickly completed very quickly. Initially there was some miscommunication, but the company was very fast to assume responsibility and remedy the problem. The technician, Matt, was highly professional and friendly…

Missy S.





We are extremely happy with the renovations and complete transformation of our 1,200 square foot basement by Belyea Bros. Limited. The project manager Sandy Scotland and his team, Kevin, Cam, Eytan and Liam, delivered high quality craftsmanship, with great attention to detail…

Laura Bhoi





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