how well the carpet comes up, will depend on how bad the fire was , also what
type of fire the customer had , was it a dry risidue fire,a protein fire etc etc.
was a emergency pre clean done with- in 24 hours.
the longer smoke odor and soot molecules stay in contact with a surface the more difficult it will be to remove.
the removal of the ordors may be very hard indeed, the customer may keep smelling this for a long time. please stress this to the customer.
hopes this helps a little. jim