Many of Toronto's older neighbourhoods — Leslieville, the Annex, Roncesvalles, parts of Scarborough and beyond — still have homes with original knob-and-tube wiring. It wasn't designed for today's loads, lacks a ground, and many insurers now refuse or surcharge homes that still have it. Replacing it improves safety and insurability.
What's included
- Assessment of existing knob-and-tube and how much remains active
- Phased or whole-home rewiring to modern grounded wiring
- Updated outlets, switches and grounding
- Documentation insurers typically require
- Coordination of ESA permit and inspection
- Drywall-conscious approach to limit patching
Signs you may need this service
- Ceramic knobs and tubes visible in the basement or attic
- Two-prong ungrounded outlets throughout the house
- An insurer asking about or surcharging for knob-and-tube
- Cloth-insulated wiring or no ground wire
- A pending home purchase flagged at inspection
Serving the whole GTA
We provide knob & tube wiring across the Greater Toronto Area. Find your city for local service, or call (289) 799-3802.