YEG Sparky · Electrical

Aluminum and knob-and-tube wiring in Edmonton

Many older Edmonton homes still have aluminum branch wiring or original knob-and-tube. Both can be managed safely, and insurers often ask about them.

Aluminum wiring

Aluminum branch wiring was used in many homes built in the mid-1960s to the 1970s. The wire itself isn't usually the problem. Trouble starts at the connections, where aluminum can loosen and overheat over time when it's joined to devices that aren't rated for it.

Repairs start from $65 per device, using outlets and switches rated for aluminum or approved connectors to join a short copper lead. This is often what insurers and home inspectors want to see.

Warning signs

  • Outlet or switch cover plates that feel warm
  • Flickering lights or outlets that work on and off
  • A burning plastic smell near an outlet or switch
  • Discoloured cover plates

Knob-and-tube wiring

Knob-and-tube is the original wiring in many homes built before the 1950s, common in older neighbourhoods. It has no ground wire, the insulation can be brittle after decades, and it was never meant to be buried in attic insulation.

A knob-and-tube inspection with a written report is $179. The report tells you what's still live and what's been replaced, which helps when you're dealing with insurance or buying a home.

What to send for a quote

  • The year your home was built, if you know it
  • Photos of a few outlets and switches with the cover plate on
  • A photo of your electrical panel
  • Whether this is for insurance, a home purchase or peace of mind

Serving Edmonton and area

YEG Sparky serves Edmonton, St. Albert, Sherwood Park, Spruce Grove, Stony Plain, Leduc, Beaumont and Fort Saskatchewan, plus neighbourhoods across Edmonton like Mill Woods, Windermere, Terwillegar, Castle Downs, Clareview, Summerside and Old Strathcona.

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