Mitigation is the immediate work used to limit additional damage. Depending on the loss, that can include stopping the source, extracting standing water, removing materials that cannot be saved, and setting drying equipment.
Remediation addresses a specific contaminant or hazard, such as sewage or mold, and may require a separate containment and cleaning scope. Restoration is the broader path back to a dry, usable property, including cleaning, drying, repairs, and reconstruction when those steps are needed.
The terms can overlap in everyday use, so the written scope matters more than the label. It should identify which phases are included, what observations support them, and whether finish repairs are part of the same proposal or a separate project.