Foundation Inspection Leon Valley, TX.
A foundation inspection in Leon Valley isn't a walk-around with a flashlight, it's a calibrated elevation survey that tells you, to the 1/64 inch, exactly how far your slab has moved and which direction it's headed.
Leon Valley sits on creek-terrace deposits tied to the Culebra Creek watershed, and those soils don't behave like the broad Blackland Prairie sheets farther east. The clay here has been sorted, saturated, and dried by drainage cycles for a very long time, which leaves plasticity indices that commonly land in the 40-to-60 range and volume change that pulls in one direction rather than evenly. That history is why so many slabs in this Bexar County pocket drop at a single corner instead of settling as a unit.
When a homeowner calls about a stair-step crack in the brick or a back door that binds every spring, the real question isn't what cracked, it's how much has the slab actually moved, and where. An inspection answers that with measurement instead of opinion. Everything below explains what our elevation survey records, how the written report reads, and why the drainage notes in that report matter as much as the structural ones.
What the elevation survey actually measures
The survey is the heart of the visit. A licensed inspector maps your slab to ±0.01 in. (1/64 in.) using a ZIPLEVEL® PRO-2030 High Precision Altimeter, taking readings around the full perimeter and across several interior grid points. The result is a contour of your floor, the high spots, the low spots, and the magnitude of the difference between them.
That number changes everything about the diagnosis. A slab covered in hairline cracks that still measures dead flat is a very different engineering problem than one that reads two inches low at the northeast corner. The first may only need moisture and drainage management; the second has already passed the point where the creek-terrace clay can recover on its own. Reading that distinction by eye is the single most common, and most expensive, mistake made when foundation calls skip the survey.
We also note the depth of the active soil zone for your specific lot. In most of Leon Valley it runs six to ten feet before reaching a more stable stratum, but near the creek channels, seasonal capillary rise can keep clay close to its plastic limit for months and push that active zone deeper. Pier depth has to be designed around your conditions, not a standard number, which is exactly why the measurement comes first.
How an inspection visit goes
Walk and listen
We start at whatever brought you to call, the cracked brick, the sticking door, the floor that feels off, and note every visible symptom inside and out.
Run the elevation survey
The inspector shoots perimeter and interior points with the ZIPLEVEL® altimeter to build a ±0.01-in. contour of the slab.
Read the drainage and grade
We check fall away from the foundation, downspout discharge, and any low-side ponding, since water is what drives the soil movement here.
Hand you the written report
You get a measured, engineer-backed plan, pier locations, projected load per pier, and drainage corrections, to keep, with no pressure and no obligation.
The survey is free, and the report is yours to keep
There's no charge for the elevation survey or the written plan, and no expectation that you sign anything that day. Most inspections take 45 to 90 minutes depending on home size and how much access there is around the slab.
If repair is warranted, typical Leon Valley projects run $4,500 to $14,000, financing is available, and the lifetime warranty on our steel-pier work is transferable, so a documented report becomes a disclosure asset at resale rather than a liability.
Leon Valley foundation inspection questions
My slab looks flat but the brick is cracking, is an inspection even worth it?
Why does my back corner drop while the rest of the house stays put?
What tool do you use to measure the floor, and how accurate is it?
Does the inspection check my gutters and grading, or only the foundation?
I have a pier-and-beam house from before modern soil standards, can you still inspect it?
Will the report tell me whether I actually need piers, or just sell me on them?
If I do need repair, what does the work involve and do I have to move out?
Book your free
foundation inspection.
Tell us where you are and what you’re seeing. A GroundLock structural advisor confirms within one business hour.
All foundation services in Leon Valley
Every GroundLock service, available throughout Leon Valley and the surrounding area:
Get your free foundation inspection.
A licensed inspector measures your slab elevation to ±0.01 in. (1/64 in.) and gives you a written, engineer-backed plan with zero pressure.