Does Home Insurance Require Knob-and-Tube Wiring Removal in Toronto?

If you've been told your home insurance renewal or new policy is contingent on removing knob-and-tube wiring, you're dealing with one of the most common electrical triggers in Toronto's older housing stock. Here's why insurers care, and what actually needs to happen next.

Why Insurers Won't Touch It

Knob-and-tube wiring was standard until the 1950s, and a lot of it is still live behind plaster and lath across Toronto's older neighbourhoods. It has no ground conductor, its original rubber insulation becomes brittle with age, and it was never rated to be buried under modern attic insulation, which traps heat around the conductors instead of letting it dissipate. Most Ontario insurers treat this as enough risk that they'll decline to write or renew a policy outright rather than price around it.

It Usually Surfaces at the Worst Time

The call rarely starts with a specific electrical symptom. It's almost always a renewal notice, a new insurer during a refinance, or a condition of sale flagged by a buyer's lawyer or home inspector. By the time it comes up, there's often a closing date or a policy deadline attached, which makes knowing your real options upfront worth more than it sounds.

Full Rewire vs. Partial Replacement

A full rewire removes every trace of knob-and-tube and satisfies any insurer outright. But most Toronto homes we assess have already been partially updated over the decades, sometimes room by room, which means a targeted knob-and-tube removal covering just the remaining circuits can be enough, provided it's properly traced and documented rather than assumed. We check exactly which circuits are still original before quoting either approach.

What Documentation Your Insurer Actually Wants

An ESA certificate of inspection is the standard proof insurers accept, confirming the remediated wiring meets current code. It's worth getting this in hand before renewal season rather than during it: a rushed rewire under a hard deadline has fewer options for phasing the work around your budget.

Get It Assessed Before the Deadline Hits

We trace your home's wiring, tell you plainly what's still knob-and-tube versus already updated, and handle the removal and replacement with ESA-inspected documentation your insurer will accept. We serve homeowners across Toronto and the GTA. Contact us or call us directly if a renewal or sale deadline is coming up.