The damage received from a fire at home is in most cases severe. Even small fires will leave some sign of damage. A fire damage restoration company will then likely come in and remove all of the stuff that is completely gone and take the stuff out that can be repaired reasonably. Many fire and water damage companies have other businesses affiliated with them that can repair things like your important documents or your home media items. If you choose the right company, they will repair many things in your house from the bottom to the top.
If the fire damage is pretty heavy, you will need to find a place to go to stay out of their way. You can check on them from time to time if it makes you feel better but with modern technology leading the way, you may be surprised and very pleased by the sheer number of items that can be saved.