Upgrading electrical in 1890 home.
Found old Knob & tube wiring is still active in 2nd floor of home.
Electrician proposes bringing in electrical from panel in basement, outside, up to second floor and then running a "raceway" along the baseboard and along the ceiling in two rooms. (Hope I explained this correctly). Is this an acceptable way of fixing this problem?
I've seen video of electricians "snaking" wires through walls with magnetic type devices, but not sure this can be done in an old home.