The duration of repairing a foundation crack can vary based on several factors including the size and depth of the crack, the chosen repair method, access to the work area, and other project-specific considerations. However, here are some general estimates and an overview of the expected timeline:

• Initial Assessment: The first step, which involves assessing the crack and determining the appropriate repair method, typically takes from a few hours to a day.
• Area Preparation: Cleaning the area and preparing the crack for repair can also take from a few hours to a day, depending on the complexity of the situation.
• Crack Repair: The actual repair of the crack can vary in terms of duration depending on the chosen method. For example, epoxy resin or polyurethane injection may take a few hours, while other methods like piling may require several days of work.
• Finishing and Restoration: Once the crack is repaired, finishing steps may be needed to restore the aesthetic appearance of the foundation. This may include applying paint or coatings, and it can take additional hours.

Taking these factors into account, repairing a foundation crack generally takes from a few days to a full week, depending on the project's complexity. It is recommended to consult with a qualified professional for an accurate estimate of the time required for your specific project.