Foundation problems in Texas

[Michael Fortier]

I see a lot of people mention foundation issues in Texas like they are a common thing. I am in Lubbock and see commercials on tv about companies that repair foundations as well. I have never experienced it myself but I've only lived here for 15 years. 

Im new to REI and doing walk throughs and was wondering, are there any signs to look for that would lead me to think there is an issue with a foundation?

[Simon Shih]

Uneven Or Sloping Floors
Cracks In Exterior Or Interior Brick
Displaced Or Cracked Moldings
Wall Rotation
Cracks In Walls Or Bowing Of Walls
Cracks In Floor, Floor Tiles, Or Foundation
Doors & Windows Won’t Open Or Close Properly
Separation Of Doors, Windows, & Garage Doors
Spaces Between Wall And Ceiling Or Floor
Walls Separating From House