If the foundations be destroyed, what can the righteous do? (Psalm 11:3)
Several years ago (I do not recall the exact year because I do not keep a diary), my backdoor neighbor, Tim, had the slab foundation of his house leveled because he noticed cracks in the brick mortar and wall separation on one side of his house. He caught me outside one day and pointed out that my house had the same problem as his and suggested my house needed the foundation leveled as well. I could not see any problem because I had not noticed any mortar cracking or wall separation, but my friend swore that he could see it. He worked in housing construction most of his life and has an eye for that kind of thing. I do not, especially if the defect is minor (to my eye). So, I ignored his advice.