Houston foundation movement and elevation readings

Much of Greater Houston sits on expansive clay. The soil swells when it is wet and shrinks in a dry summer. That movement shows up as interior cracks, sticking doors, sloping floors, and gaps at brick or trim.

Not every crack is structural. Hairline drywall cracks near windows are common. Diagonal cracks, doors that no longer latch, and a floor that slopes toward one corner deserve a closer look.

A visual inspection notes the symptoms. Elevation readings measure relative heights across the slab so you can see whether the floor is high in the middle, low at a corner, or generally level.

Those numbers help you and a foundation company talk about the same condition. They do not, by themselves, prescribe piers or a repair plan. If the readings or the visible damage are significant, the next step is a licensed structural engineer.

Water standing against the slab makes movement worse. During an inspection we look at grading, gutter discharge, and whether downspouts dump next to the foundation.

Before you spend on foundation work, fix the water. Extending downspouts, correcting negative grade, and keeping flower beds from holding moisture against the brick are often the first practical repairs.