Water, whether it's because of too much or too little, tends to be a major cause of foundation problems in Texas. It can stem from water leaks, poor drainage, neighbor's water draining onto your property-even older, large tree roots can cause damage. Poor soil structure can cause the problem as well.
To read about the causes, you might try either of these:
There are lots of foundation repair companies out there. Many will offer a free estimate if you suspect you have foundation problems. If you do, and you have repairs done, always make sure you choose a company that will give you a lifetime warranty on the work that they've done. I know this is more info than you asked for-but just thought I'd take it a step further in case you had questions.
Hope this helps!
If you don't care for the foundation it could move on you.
I bought my home and it had 32 piers installed on it. I had to have it adjusted since moving into the home 6 years ago.
I highly suggest an engineers report on any home that might show signs of movement and if a homes says it has had prior work done you want to read and fully understand the warranty and the transfer rules.
I had to have the home I bought and feel that if I ever sell the new owners will feel the same. So, as long as I take care of it correctly it should be no more problems then any other home. Hope that helps you.