Slab Foundation Repair Burnet, TX.

Most of the foundation advice you'll read was written for the Blackland Prairie east of the Balcones Escarpment, where deep, plastic clay swells and shrinks with every wet and dry season. Burnet sits in different ground entirely. Out here in the Llano Uplift, a slab is poured over a patchwork of Precambrian granite domes, Cambrian limestone, and thin, rocky soil that can change character within a single lot, and that patchwork, not clay plasticity, is what moves houses.

The practical result is that one corner of your home may rest squarely on rock a foot below grade while another corner bridges a soft pocket of decomposed granite or a shallow caliche lens. When the support under that weaker zone gives way, the slab rotates or drops locally. We engineer for that specific failure mode rather than treating Burnet like a clay site that it isn't.

Movement signs worth a second look in Burnet

These tend to cluster where the slab transitions from rock to fill rather than tracking a moisture gradient across the house:

• Diagonal cracks fanning from the upper corners of windows and doors
• Doors that bind at the top or gap along the strike side over successive seasons
• Stair-step cracking in exterior brick or block, often on just one elevation
• Tile grout lines that fracture in a line tracking across an interior floor
• Slab or garage-floor cracks that widen rather than staying hairline-stable
• Gaps opening between trim, walls, and the ceiling on one side of a room

Why steel piers, and not pressed concrete

Because bedrock in the Uplift varies so much in depth, there is no single "right" pier depth to design to. The honest answer is depth-to-refusal: we advance galvanized steel segments hydraulically until they meet measured, consistent resistance on dense granite or sound limestone. That might be a handful of feet at one location and considerably deeper a few feet away.

Pressed-concrete piers can't account for that. They rely on the weight of the house as their only driving force and stop at whatever they contact first, and around here, the first thing a pier touches is sometimes a thin limestone ledge capping a void rather than competent bearing. Steel piers driven to resistance push past that uncertainty.

Pier placement matters as much as pier type. Rather than spacing supports at uniform intervals, we read your elevation survey and set piers to bridge from the soft or settled zones down to the strata that will actually hold the load.

How a Burnet slab repair runs

Burnet slab foundation repair, answered