Foundation Settlement Repair West Lake Hills, TX.

Drive around West Lake Hills and the ground is clearly doing something different than most of Central Texas. West of the Balcones Escarpment, the deep prairie clay gives way to a few inches, sometimes a few feet, of weathered residual clay and loam sitting directly on Edwards limestone. When a slab drops out here, the cause usually isn't the expansive clay people blame east of town. It's shallow soil that shrinks fast in a dry summer, a lot that slopes ten or fifteen percent, or bedrock hiding at four feet in one corner and twelve in another.

That unevenness is the whole story of settlement repair in this community. A pier that hits rock quickly on the uphill side tells you nothing about the downhill corner. So before we quote anything, we map exactly where and how far your foundation has moved, guessing from where the cracks happen to show gets the plan wrong.

Two ways a hillside foundation loses support

Most settlement here traces back to one of two mechanisms, and telling them apart changes the fix. The first is seasonal shrinkage: in a dry stretch, the thin clay under your perimeter grade beam loses moisture and volume and pulls support away from the edge of the slab, often showing first as a door that won't latch or a stair-step crack over an exterior wall. The second is slower and easier to miss: downslope creep, where on lots with real grade the residual soil migrates downhill over years and rotates the slab or drops the low edge. Less commonly, dissolution in the limestone below opens a void and the ground above subsides.

These look similar from inside but call for different pier layouts and, on steep lots, different loading geometry. Because the two overlap and the rock underneath is anything but flat, every project starts with a precision elevation survey accurate to ±0.01 in. (1/64 in.) across the perimeter and interior bearing points. That contour map separates a targeted repair from a shotgun approach, and it's free, no obligation.

What our elevation survey actually looks at

The free survey is a measured diagnosis of your specific lot, not a sales walk-through. Here's what we're reading before anyone talks about piers:

• Relative slab elevation at every corner, perimeter point, and interior bearing line, mapped as a contour to ±0.01 in. so the real low spots drive the plan.
• Whether the pattern points to perimeter shrinkage, downslope creep, or localized subsidence over a limestone void, each wants a different response.
• Site grade and drainage: how water moves across the lot and whether it's ponding against the uphill side of the foundation.
• Proximity of large cedar and live oak, which pull moisture from the top twelve to twenty feet of soil during drought.
• Access and working room around the affected beam, which drives pier count, spacing, and labor cost.
• Existing cracks and trim gaps documented as a baseline, so post-repair movement can be measured against a known starting point.

Why galvanized steel piers, and how we set them on this ground

A cheaper repair fails here predictably: a pressed-concrete or surface-grouted system terminates inside that shallow, seasonally active soil, the exact layer that moved, so the same moisture cycles that dropped your slab move it again. Galvanized steel piers skip that layer. We hydraulically drive each through the overburden and fractured rock transition until it meets resistance in load-bearing strata. The drive is also diagnostic: the installer watches pressure continuously and evaluates refusal against the structural load at each specific pier, not a blanket depth, the only sane way to work ground where competent limestone sits four feet down at one pier and twelve at the next. On the steepest lots we batter piers where grade compromises vertical loading.

Drainage is part of the repair, not an afterthought, because water drives settlement regardless of soil type. Our written plan pairs the pier layout with grading and moisture recommendations, on hillside lots, reaching six inches of fall over the first ten feet often means regrading, a French drain, or downspouts routed past the drip line. If runoff is chewing at the soil, our drainage and erosion-control work fixes the cause so the repair holds. Most homes stay occupied throughout, and every project carries a lifetime, transferable warranty.

West Lake Hills foundation settlement questions