The 3 things I learned when I had my foundation repaired that shocked me were: helical piers can be installed in tight

https://medium.com/@theredfuro/residential-foundation-repair-checklist-3-things-to-know-before-you-call-7e4716c36b3a

The 3 things I learned when I had my foundation repaired that shocked me were: helical piers can be installed in tight yards, torque logs prove capacity, and depth often exceeds estimates.