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Cost upgrading from knob & tube in small house

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Posted by: from Edmonton
8/31/2022 at 9:21:12 PM

I'm looking to buy a 1930's 425 sq/ft small house that currently has knob and tube electrical. I'd like to get an idea of the cost associated with upgrading this to a 100 amp panel + wiring. House will not be gutted ideally. Probably access to attic, but not sure on that. There is access to crawl space. Not sure if code allows for it, but if it does, the knob & tube wiring doesn't have to be removed for me.

What would be the range for installing 100amp panel and get everything rewired, preferably fishing the wires through the house.

Located in the Edmonton area.

Here is the link to the listing: https://www.realtor.ca/real-estate/24671232/5138-51-street-daysland-daysland

REPLIES (1)
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Date/Time9/1/2022 at 12:25:22 PM

You are correct in that gutting it would be better. It can be done without but then many holes have to be cut etc. and probably same cost re-doing it anyway. Last one I did ran $2500 for a panel (min. on a panel) and the electrical ran 15K but it was a bigger house, so expect at least half that. You are basically looking at re-wiring and grounding the whole thing. If you do not alter anything in the existing house you can keep the old wiring but that means "no remodels" whatsoever. The minute you open a wall you must upgrade. That stuff has lasted 100 years in many houses but is totally unsafe with todays electrical appliances so why would you take chances? As well most insurance companies will likely not insure you on such a old house unless it is fully upgraded.

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