Cracks In The Sheetrock
Cracks can appear in your sheetrock for a variety of reasons, but they are most commonly caused by settling in the foundation. These cracks typically appear above the corners of doors and windows and are fairly small, though they can also appear in the middle of walls or ceilings. They are fairly simple to remedy, re-texture and paint.
Larger cracks may require a more involved drywall repair process, but can still be patched seamlessly and made almost invisible. This will require scraping, taping, floating, and texturing, topped by the matching paint
If your cracks are numerous or really large and you aren’t aware of their origin, you may want to contact a foundation expert to examine the home before making any repairs.