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Floresville · Wilson County

Foundation Settlement Repair Floresville, TX.

Floresville's sandy clay over the Carrizo formation drains faster than the Houston Black clays nearer San Antonio, which is exactly why its settlement can sneak up on a slab. We measure it, then pier it past the moving soil.

Drive a few Floresville streets and you'll notice neighbors with very different foundation stories on lots that look identical. That comes down to the ground itself: a sandy clay sitting over the Carrizo formation, laid down by old river and flood terraces that change from one lot to the next. The sand drains and consolidates while the clay underneath keeps swelling and shrinking, so a slab can get tugged in two directions at the same time.

Because that sandy fraction holds less water than the heavy Blackland clay up north, the surface doesn't crack as dramatically in a drought, which is exactly why owners here tend to underestimate it. The volume change is happening at depth, in an active zone that commonly runs six to ten feet below grade, well past anything you'd spot by looking at the yard. By the time a door binds or a corner reads low on a level, the soil has already been doing mechanical work on the foundation for a while.

Start with a measurement

Every Floresville job opens with a free elevation survey accurate to ±0.01 in. (1/64 in.), a contour map of exactly where your slab has left level and by how much.

You get that map and a written, engineer-backed plan whether or not you hire us. No obligation, no high-pressure visit.

What homeowners here usually notice first

On this soil, settlement shows up as differential movement, one area drops while another holds, so the early signs are subtle and local rather than dramatic:

  • An interior door that starts binding or shows a fresh gap at one top corner, often before any wall cracks appear
  • Diagonal cracks fanning out from the corners of doors and windows in drywall or stucco
  • Stair-step cracking in exterior brick or block along one elevation of the house
  • A floor that reads sloped on a marble or a level even when it doesn't feel obvious underfoot
  • A gap opening where the wall meets the ceiling, or trim pulling away in one room
  • One visibly low corner, frequently the side facing a downspout, a flower bed on drip, or a big tree

Why we found the piers below the Carrizo's active zone

The single decision that decides whether a repair lasts is where the piers come to rest. Concrete pressed piers transfer the home's weight back into that same sandy clay that caused the trouble, so when the zone wets and swells they can heave, and when it dries they can re-settle right along with the seasons. You've moved the problem, not left it behind.

GroundLock's galvanized steel piers are driven hydraulically until they hit refusal in the competent rock or dense load-bearing strata beneath the Carrizo, outside the moisture-active soil entirely. The installation doubles as a proof test: each pier has to hold a load past its design capacity, using the structure's own dead weight, before it's accepted. That means every pier is load-tested in place, no assuming the soil behaves the same across the whole footprint, which on Floresville's terrace deposits it rarely does.

Most homes stay occupied while we work. Typical projects land between $4,500 and $14,000 depending on pier count, access, and drainage, and the finished repair carries a lifetime transferable warranty, coverage that follows the property to the next owner, which matters when a buyer's inspector starts asking about this soil type. Financing is available so it doesn't have to be paid all at once.

How a Floresville repair actually runs

01

Free elevation survey

We map your slab to ±0.01 in., mark the high and low points, and walk you through what the contours mean in plain language.

02

Engineered pier plan

Pier count and spacing are set to a structural spec built for your home and its measured movement, enough to fix it, not more than it needs.

03

Drive, lift, and lock

Steel piers are driven to refusal, then hydraulic pressure across all of them lifts the settled section back toward level and transfers the load onto the steel.

04

Re-survey and warranty

We backfill and compact, re-shoot the elevation against the original map to confirm the result, and document the lifetime transferable warranty before we leave.

Floresville foundation settlement questions

Two houses on my street had foundation work and the one next door never has, same builder. Why?
It's the ground, not the builder. Floresville sits on flood- and river-terrace deposits that change lot to lot, layering sand over clay in different proportions. One lot can have a thick draining sand cap while the next has clay close to the surface, so two near-identical homes end up with very different foundation histories.
My yard never cracks open in a drought like I see elsewhere. Does that mean my slab is safe?
Not necessarily, and this is the catch with our soil. The sandy clay holds less water than the heavy clays up north, so it doesn't gape at the surface, but the shrink-swell is still happening down in the active zone, six to ten feet deep. The lack of dramatic surface cracking actually makes the movement easier to miss.
Why steel piers instead of the concrete ones another company quoted?
Pressed-concrete piers often stop inside the same sandy clay that's moving, so they can ride the wet-dry cycle right along with it. Our galvanized steel piers are driven to refusal in the load-bearing strata below the Carrizo, past that active zone, and each one is load-tested in place as it goes in.
Should I be watering around my foundation, and how far out?
During a hard dry stretch, yes. Run drip irrigation or a soaker hose about 18 to 24 inches back from the slab edge, evenly around the house, to buffer the wet-dry swing that drives the soil movement. Steady and consistent beats heavy and occasional, you're trying to hold moisture level, not flood it.
There's a big live oak near the corner that's dropping. Is the tree the problem?
It's often a contributor here. Mature live oaks and pecans pull a lot of moisture out of the soil in summer, creating a dry cone that can reach under the slab edge and let that corner settle. We don't always recommend removing the tree, but we do account for it in the pier plan and the drainage advice.
How much will it run, and can I pay over time?
Most Floresville steel-pier projects land between $4,500 and $14,000, set by pier count, access, and drainage. The free elevation survey fixes the scope in writing before any work starts, and financing is available so you can spread the cost rather than paying all at once.
Do I have to move out while you're working?
Almost never. The piers are installed from the exterior with localized excavations, so most homes and buildings stay occupied throughout. You'll have crews and equipment around the perimeter, but daily life inside generally goes on as normal.
If you pier my house, can it settle again later?
The sections carried on steel are founded below the active soil, so they shouldn't ride the seasons again, that's what the lifetime transferable warranty covers. Parts of the slab that weren't piered can still move, which is why we also look at grading and drainage so water isn't left driving the very problem we just fixed.
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