Knob & tube wiring was good for its era, but its era ended decades ago. It has no ground, the insulation degrades, modern insulation traps heat against it, and most home insurers now require it to be removed before they’ll renew a policy. We trace it through the house, replace it section by section, and provide the ESA documentation your insurer asks for.
Often paired with panel upgrades, renovations & additions, and residential electrical. We coordinate the whole job under a single permit when it makes sense.
What’s included
- Full inspection and mapping of remaining knob & tube
- Section-by-section replacement with modern grounded ROMEX
- New grounded receptacles and switches throughout affected areas
- GFCI/AFCI protection where required by current code
- Minimal-damage fishing of new cable through walls and ceilings
- ESA permit, inspection, and certificate for your insurer
When to call us
- A pre-1950s house in Oshawa, Whitby, or Bowmanville
- Insurance renewal letter asking about knob & tube
- Two-prong outlets that don’t accept grounded plugs
- Cloth-wrapped wiring visible in the basement or attic
