Foundation Inspection Lakeway, TX.

What a Lakeway hillside lot hides from the naked eye

Before a single reading is taken, our inspector walks the property looking for the structural tells that matter on Edwards Plateau terrain:

• Diagonal cracks fanning from window and door corners, the classic signature of a foundation racking under uneven support
• Stair-step cracks tracking the mortar joints of brick veneer, usually concentrated on the downhill side of the house
• Doors that bind in late summer but swing free after winter rain, hinting at a clay lens inside an otherwise rocky lot
• Grading and downspout discharge that fall short of the six-inches-over-ten-feet rule that keeps water off the bearing soil
• Benched pads, cut slopes, and retaining walls where engineered fill consolidates at a different rate than the rock beside it
• Pooling or infiltration points along the perimeter where concentrated runoff is feeding moisture under the slab

Why this terrain moves differently than the rest of the metro

Lakeway sits west of the Balcones Escarpment, on thin residual soils over Edwards Plateau limestone, sometimes only a few inches of dirt before your shovel hits rock. That sounds like the most stable ground in the region, and in places it is. The trouble is that the soil isn't uniformly thin.

Where it accumulates, in swales, behind retaining walls, on benched lots, at the toe of a cut slope, it holds moisture asymmetrically and cycles with the seasons. So one corner of a home can rest directly on competent limestone while another spans a pocket of seasonally active soil. The result is differential movement that racks the structure from end to end, which is a fundamentally different problem than the deep, high-plasticity Blackland Prairie clays that drive failures east of the escarpment.

On the cut-and-fill lots common along these Colorado River drainages, there's a second variable: engineered fill settles at its own rate, and lateral pressure from an uphill retaining wall can push horizontally on the foundation, a failure mode you'd never catch by staring at a crack. Reading that correctly is the whole point of the inspection.

What the elevation survey actually measures

The core of the inspection is a precision elevation survey accurate to ±0.01 in. (1/64 in.), taken across every accessible slab or beam surface with a ZIPLEVEL® PRO-2030 high-precision altimeter. That grid of readings is the only objective way to separate cosmetic settlement from real structural deflection, and to tell whether the movement is still happening or happened years ago and stopped.

On a hillside lot the survey usually exposes a consistent pattern: the downhill corner, or the side nearest a drainage channel, has dropped relative to an uphill edge that's pinned to shallow rock. That differential tells our engineer where load is being shed, where the bearing stratum turns irregular, and exactly where galvanized steel piers would need to land if the readings call for them. The same map also shows where a drainage correction alone might reduce or eliminate the pier count on a marginal case.

None of this costs you anything. The elevation survey is free, the engineering behind it is real, and you walk away with the numbers whether or not you ever hire us.

How the inspection runs, start to finish

Questions Lakeway homeowners ask us