Foundation Settlement Repair Converse, TX.

If a corner of your Converse home has dropped, the culprit is almost certainly sitting a few feet under your slab. This stretch of Bexar County runs on Houston Black clay, a montmorillonite-rich vertisol that routinely tests at a plasticity index above 40, and well past 60 in the most reactive pockets near the Cibolo Creek tributaries. That clay gains and loses several inches of volume as it wets and dries, and a slab poured on top of it rides every cycle.

Settlement repair here isn't a matter of jacking a low spot back up and walking away. The seasonal swing of moisture through that clay reaches 6 to 10 feet below grade in this area, so any support that stops short inside that depth keeps cycling with the soil. The job is to read the slab accurately, carry the load below the moving ground, and keep water from re-wetting the clay unevenly afterward. That's the sequence we walk every Converse homeowner through.

What Converse homeowners notice first

Most calls from this side of Bexar County start with one of these, and they almost always trace back to the clay under the slab:

• A single corner or one exterior wall that's visibly lower than the rest of the house
• Stair-step cracks climbing through the brick mortar, often widening after a wet spring
• Diagonal cracks running off the corners of doors and windows at roughly 45 degrees
• Interior doors that latch fine in winter but bind and drag by late summer
• A gap opening where the wall meets the ceiling, or trim pulling away from the drywall
• Floors that feel like they slope toward one part of the room

Why slabs move the way they do out here

The Blackland Prairie clay under Converse is among the most expansive soil in the country. After a hard storm fills the Cibolo tributaries, the ground swells and lifts whichever part of the slab sits over the wettest soil. Come drought, that same clay shrinks away from the footing and the slab drops. The trouble is that this rarely happens evenly, one quadrant heaves while another settles, and that differential movement is what racks the brick and cracks the sheetrock.

Because the reactive layer is deep here, shallow patches and short pressed-concrete piers tend to stop inside the moving zone and keep riding it. There's a corrosion angle too: the clays in this corridor are sulfate-bearing, which chews through uncoated steel over time. That's the practical reason we use galvanized sections, the zinc coating lets the repair outlast the warranty, and the warranty is written to transfer to the next owner along with it.

Diagnosis matters before any pier goes in the ground. A perimeter-only drop calls for a different scope than a dish in the middle of the slab, and telling true settlement apart from upward heave changes the whole repair plan. We don't guess at that, we measure it.

How a Converse repair actually goes

Keeping the clay from undoing the work

A lift that ignores water just resets the clock. Once the slab is back where it belongs, the goal is steady soil moisture so the clay stops swinging between extremes. Grade is the first lever: you want roughly a 6-inch drop over the first 10 feet away from the foundation so storm runoff sheds instead of pooling at the beam.

Irrigation is the second. Sprinkler heads run within 18 to 24 inches of the slab dump water the surrounding drier clay can't equalize, creating exactly the moisture gradient that drives edge heave. In a hard Central Texas drought the opposite problem shows up, and a soaker hose run evenly about a foot off the slab keeps the clay from pulling away. Where a lot needs more than that, we'll pair the repair with drainage correction or erosion control, but only where it genuinely protects the foundation.

Typical Converse projects land between $4,500 and $14,000 depending on pier count, access, and drainage work, financing is available, and most homes stay occupied the whole time, crews work from the exterior and access points.

Converse foundation settlement questions