This very much depends on the level of char and damage to each individual piece of structure. Where possible we prefer to clean and restore structure; however, if the item is compromised, we will of course replace it.
Typically for larger fires we do need a building permit; however, if the damage is only cosmetic there is no need to file for a building permit.
We are very adept at removing smoke odours from homes. Typically this is a fairly lengthy process and can involve removal of drywall and floors if necessary. We also use specialty equipment meant to breakdown and remove smoke and other odours.