First I have to explain that the soil in the Houston area moves around a lot. If we were on rock, we would have earthquakes. We also have soil that swells when it gets wet and shrinks when it's hot and dry. The last is what happened to my house. Oh, and almost everyone here has a slab foundation. A few years ago, piers were placed around the front 3/4 of my house as the foundation was beginning to tilt forward. Because of the extreme dry and hot weather we've had this summer, the soil under the middle of the house began to shrink and the middle of my house began to sink. There was as much as a 4" difference in elevation between the highest and lowest part of my house. Yeah! The caused cracks in the sheetrock. doors that wouldn't close all the way or wouldn't stay closed. The worst part was the gap between the bottom of the wall and the floor in some places and the same gap between the top of the wall and the ceiling in others.
Today I'm posting some pictures of some of the problem areas.
Bedroom closet door - you could see the light from the closet through the crack which was on both sides of the wall! And that was as closed as the door would get.
Door from dining room into kitchen - on the other side there was a gap between the top of the wall and the ceiling.
Wall between kitchen and garage - notice gap at top of wall and cracks around door.
Tomorrow I'll post pictures of the beginning of the process. Please let me know if you have any questions.