- This is dependent upon how bad the damage is. The best way to get a gauge on how long the repair work may take is to send is a picture ahead of time for a free estimate. We have been doing this for a year and generally can get a gauge on what needs to be done from a photo. For more extensive damage or photos that are hard to read we will ask for an onsite estimate, where we can plan to foundation repair work and give you a realistic timeline on the repair work.