My home insurance company says I need to upgrade my electrical — what are they actually asking for?

When an Ontario insurer tells you to "upgrade your electrical," they are typically requiring you to address one or more specific hazards — most commonly knob-and-tube wiring, aluminum branch circuit wiring, a fuse box, or a panel with known safety defects — and they will not continue your coverage until a licensed electrician completes the work and provides documentation. This is not optional advice; it is a condition of your policy.

Insurance companies in Ontario have become increasingly strict about electrical requirements over the past decade, and the GTA market has seen the sharpest enforcement. The most common triggers are:

Knob-and-tube wiring is the number one reason insurers require upgrades in older Toronto neighbourhoods. If you have a home built before 1945 in areas like Cabbagetown, the Annex, Riverdale, High Park, or Leslieville, there is a strong chance some or all of the original wiring is knob-and-tube. Insurance companies view active K&T as an unacceptable fire risk, particularly when it has been buried under blown-in insulation (which prevents the wire from dissipating heat as it was designed to do). Full K&T removal and rewiring in a typical Toronto home runs $8,000 to $20,000 depending on size and accessibility. Some insurers will accept a certified electrician's report stating that the K&T has been fully disconnected and replaced with modern wiring on affected circuits, rather than requiring a whole-home rewire.

Aluminum branch circuit wiring, common in GTA homes built between roughly 1965 and 1975, is another frequent trigger. The connections between aluminum wire and standard copper-rated devices expand and contract at different rates, creating loose connections that can overheat and arc. Insurers typically require one of two approved remediation methods: COPALUM crimping ($5,000-$12,000) or AlumiConn connectors ($3,000-$8,000). Both involve a licensed electrician treating every connection point in the home — every outlet, switch, light fixture, and junction box. Once complete, the electrician provides a certificate that satisfies the insurer.

Fuse boxes (typically 60-amp service) are viewed as inadequate for modern electrical loads and lacking the safety features of modern breaker panels. Insurers commonly require replacement with a 100-amp or 200-amp breaker panel. This upgrade runs $2,500 to $5,000 in the GTA depending on whether the service entrance and meter base also need replacement. A 200-amp upgrade is strongly recommended even if the insurer would accept 100 amps, because modern loads — EV chargers, central air conditioning, home offices — quickly outgrow a 100-amp panel.

Federal Pioneer (Stab-Lok) panels are another common trigger. These panels, installed widely in Canadian homes from the 1950s through 1980s, have documented issues with breakers failing to trip during overloads. Many insurers now require replacement, which costs $2,000 to $4,000 for the panel swap.

When your insurer sends you a letter, read it carefully for the specific requirements and deadline. Most insurers give 30 to 90 days to complete the work and provide documentation. The documentation they typically need includes a certificate from the licensed electrician confirming the work was completed, an ESA certificate of inspection (which proves the work was permitted and inspected), and sometimes photographs of the completed work.

Do not try to handle any of these upgrades yourself — every one of them requires a licensed electrician and an ESA permit. Toronto Electrical Repair can connect you with experienced electricians through the Toronto Construction Network who deal with insurance-required upgrades regularly and know exactly what documentation your insurer needs.