The 3 things I learned when I had my foundation repaired that shocked me were the difference between helical

https://cesarzxnw245.zenbloomer.com/posts/residential-foundation-repair-3-things-to-confirm-before-calling-any-company

The 3 things I learned when I had my foundation repaired that shocked me were the difference between helical and push piers, when each is used, and why depth beats count.