Old-house problems, honestly diagnosed
Prewar Toronto housing brings a predictable set: knob and tube that was partially replaced, galvanised supply lines narrowed to nothing, cast iron drains at the end of their life, plaster and lath, and balloon framing that makes a simple wall opening less simple than it looks. None of that is a reason not to do the work. It is a reason to find out what you have before agreeing a price.
