Why floors become uneven
Foundation settlement, soil movement, pier-and-beam support issues, framing changes, moisture, and prior repairs can all contribute to floor slope. The cause should be identified before deciding how much correction is appropriate.
Leveling is controlled work
Raising or adjusting parts of a structure can change stresses in walls, finishes, plumbing, and framing. A repair plan should account for the age and condition of the house, the magnitude of movement, and the likely response of the structure.
Measure before and after
Elevation measurements and documented observations can help establish a baseline and show what changed during repair. They are more useful than relying only on how a floor feels underfoot.
Local context: Educational statements about expansive clay, wet/dry soil movement, and common warning signs are consistent with current guidance published for Sugar Land and the greater Houston area. They are general context, not a diagnosis for any individual property.