Signs of Foundation Problems
The homeowner had complained about not being able to shut the doors in their hallway for over a year.
Previous Attempts At Fixing The Problem
The previous attempts seem to have been along the lines of just throwing whatever they could at the problem to see what would work (Spoiler Alert: none of it worked).
The True Solution
Here is a SmartJack that we installed between two failing wooden posts to help lift and stabilize the floor.
More SmartJacks
In total, we installed 10 SmartJacks.