Knob & tube replacement in Toronto: what to expect
Toronto still has houses running on knob and tube — mostly pre-1950 homes. Many insurers now decline or surcharge them, and the wiring was never designed for modern loads.
We rewire room by room while you live there: home-run circuits from the basement and attic, small planned openings elsewhere, power restored to occupied rooms at the end of each day.
When it's done you get the ESA Certificate of Acceptance and a completion letter for your insurer. Pairing the rewire with a 200 A upgrade saves a second permit and a second visit from Toronto Hydro.
Local notes: Toronto
Laneway and garden suites. Toronto now permits laneway and garden suites on many lots. Feeding power to a backyard building usually means a new service or a sub-feed from the main house — a load calculation comes first.
Commercial: main streets and offices. Restaurant, retail and office fit-outs along Queen, Dundas, the Danforth and downtown, with after-hours work where landlords require it.
Typical costs
| Scope | Typical range |
|---|---|
| Toronto semi or row house, full rewire | $12,000 – $22,000 |
| Detached 2-storey, full rewire | $18,000 – $35,000 |
| Partial (remaining live K&T circuits only) | $3,500 – $9,000 |
| Aluminum pigtailing, whole house | $1,800 – $4,000 |
Where we work in Toronto
We cover all of Toronto, including The Annex, Leslieville, Riverdale, High Park, Roncesvalles, The Beaches, Danforth, Leaside, North York, Etobicoke, Scarborough, Midtown. Every job starts the same way: a site visit, a written fixed quote, then the work — permit included.
More on this service: Knob & tube / rewiring · Electrician in Toronto
Questions from Toronto
How much does knob and tube replacement cost in Toronto?
Typically $12,000–$22,000 for a semi or row house and $18,000–$35,000 for a detached two-storey; partial jobs cost less.
Can we stay in the house?
Usually yes — power is restored to occupied rooms each day.
Will my insurer accept the work?
You receive the ESA Certificate of Acceptance and a completion letter, which is what insurers ask for.
Knob & tube replacement nearby
Etobicoke · East York · Markham · Whitby · Oshawa · Oakville
