Extent of active wiring
A small number of accessible circuits is a different project from old wiring distributed across multiple floors and finished rooms.
Access and finishes
Open basement joists and accessible attics can simplify routing. Finished plaster walls, ceilings, built-ins, or limited chases can increase labor and coordination.
Related electrical scope
Panel work, additional circuits, device replacement, grounding or other corrections may be separate from the basic knob-and-tube scope if they are needed for the project.
Talk about your Providence property
Call and tell us what you found, where the old wiring is visible, and what work you are planning.