Knob & Tube Replacement

Full knob-and-tube replacement in a typical Toronto home runs $9,000–$15,000 depending on home size, wall finishes, and accessibility. Many homeowners phase the work by floor. The price includes new NMD90 copper wiring, grounded outlets, ESA permit and inspection, and insurance documentation.

It isn't illegal, but it's a recognized fire and insurance risk: no ground wire, brittle insulation, and no capacity for modern loads. Most insurers refuse new policies or charge steep premiums on homes with active K&T, which is why buyers and sellers usually replace it.

Yes. We specialize in fishing new wiring through finished walls with minimal, strategic openings — particularly important in Toronto's century homes with original plaster and trim. Patching is dramatically cheaper than re-plastering entire walls.