Foundation Repair in Cedar Park, TX Built for Clay, Limestone & Drought

The outer edge or a corner of a slab sinks below the rest of the foundation. Usually the clay underneath has dried and shrunk away from the beam, so the slab loses support and bends downward at the edges.

Drought is the driver. During dry stretches like 2022–2023, clay under the slab perimeter loses moisture faster than soil under the center of the house. Mature live oaks and cedar elms near the house pull out even more water, and stage-based watering restrictions make it hard to keep soil moisture steady. Corners on fill pads, which are common in 1980s–90s subdivisions built on sloping limestone, settle even more because the fill was never fully compacted.

• Stair-step cracks in brick or Austin stone near corners
• Diagonal drywall cracks above doors and windows
• Doors that stick or won't latch
• Gaps between baseboard and floor
• Exterior trim or window frames pulling away
• Floors that slope toward an outside wall

Very common in Buttercup Creek, Cypress Creek and Anderson Mill homes surrounded by mature oaks, and on cut-and-fill lots throughout Cedar Park. On Blackland clay in eastern Round Rock and Pflugerville, drops tend to be deeper and more widespread.

Our fix: Pressed concrete or steel piers driven to load-bearing strata, then a controlled lift to restore elevation. We often add root barriers or drainage correction to slow future drying.

The middle of the slab rises relative to the edges. Clay beneath the interior swells, usually from a plumbing leak or prolonged wet weather, and pushes the slab upward into a dome shape.

Interior soil stays wetter than perimeter soil, and when a big rain follows a drought, expansive clay can swell several inches. Post-tensioned slabs common in Leander, Avery Ranch and Twin Creeks resist bending but can still dome. Under-slab leaks are a major hidden cause here. Winter Storm Uri in 2021 left plenty of supply and drain line leaks that went undetected and kept saturating soil for months.

• Interior doors sticking at the top
• Cracks in tile or flooring near the center of the home
• Floors that rise toward the middle
• Unexplained spikes in your water bill
• Cracks radiating from interior walls

Seen most in homes on deep clay east of Cedar Park and toward Pflugerville, and in houses that had pipe failures during Uri. New builds in Leander and Liberty Hill sometimes heave when builder-grade drainage sends water under the slab.

Our fix: Find and fix the moisture source first with plumbing and hydrostatic tests. Then stabilize the slab, usually by leveling the perimeter to match the heaved area rather than forcing the center down.

Water or sewer lines beneath the slab crack or separate. The leaking water softens, swells or washes out the supporting soil, which can cause localized settlement or heave.

Freezes like Winter Storm Uri stressed plumbing across the region. Meanwhile, foundation movement in older homes strains cast-iron and early PVC drain lines in turn. Leaks and movement feed each other: the slab shifts, a pipe cracks, the soil gets saturated and the slab shifts more. Homes in Jollyville and Wells Branch, many of them 30 to 50 years old, are especially vulnerable.

• Warm spots on the floor
• Sound of running water with fixtures off
• Higher water bills
• Damp carpet or musty odors
• New cracks near bathrooms or kitchens
• Slow or gurgling drains

Common in Wells Branch, Jollyville and older Round Rock homes with original drain lines, and in any home that had frozen pipes in February 2021. Repairs often surface during pre-sale inspections.

Our fix: Leak detection and hydrostatic testing, then a targeted slab leak repair through a tunnel or access point. After that we re-evaluate elevations and level if needed.

Homes on sloped lots slowly shift downhill as fill or soil on the downslope side creeps. Tall stem walls and retaining walls holding that grade can crack, lean or bow.

Around Lake Travis, many homes sit on fill placed over sloping rock. Heavy bursts of rain like the October 2018 flood saturate that fill, increase lateral pressure and wash fines away. Stepped foundations and tall stem walls concentrate stress where the grade changes. Without good drainage, every storm pushes a little more.

• Horizontal or stair-step cracks in stem walls
• Leaning or bulging retaining walls
• Gaps opening at decks or patios
• Doors racking on the downhill side
• Soil erosion or exposed footings
• Cracks where foundation steps change height

Concentrated in Hudson Bend, Lakeway, Lago Vista, Jonestown and Volente, where lots step down toward the lake. In West Lake Hills it's common on older homes built into hillsides.

Our fix: Stem wall repair or reinforcement, piers drilled into rock on the downslope side, and drainage correction to relieve water pressure. When slope stability is involved, we coordinate engineering.

In homes raised on piers, wood or concrete piers can rot, shift or crack, and beams can sag. Floors become bouncy, uneven or sloped.

West Lake Hills and Rollingwood have many 1950s–70s ranch homes, and Georgetown's historic core has even older ones. Decades of moisture in poorly ventilated or poorly drained crawlspaces rot wood piers and sills. Shifting clay pushes concrete piers out of plumb. Old shims compress and fall out.

• Bouncy or soft floors
• Floors sloping toward the middle of rooms
• Standing water or dampness in the crawlspace
• Wood rot or termite damage on beams
• Cracked or tilting piers
• Gaps under interior walls

Most common in Georgetown Old Town near the 1911 Courthouse Square, older West Lake Hills and Rollingwood homes, and scattered older farmhouses around Liberty Hill. Historic overlay rules can affect exterior access work.

Our fix: Re-shim or replace piers, sister or replace damaged beams, and add crawlspace drainage and vapor control to stop the cycle.

Hairline shrinkage cracks show up in almost every concrete slab, garage floor and wall. Some are harmless. Others, especially wider or offset cracks, point to real structural movement.

Concrete curing in Central Texas heat produces shrinkage cracks, and rigid brick and stone veneer telegraphs even slight movement. Homeowners often can't tell the difference, and since Texas doesn't license foundation contractors, many worry about being upsold. Elevation readings settle the question with data.

• Hairline cracks under 1/16 inch
• Cracks wider than 1/8 inch or getting wider
• One side of a crack higher than the other
• Cracks in garage floors and driveways
• Mortar joints separating in brick

Shows up everywhere, but especially in newer Leander, Liberty Hill and Crystal Falls homes, where owners first see cracks and wonder whether the builder's slab is failing.

Our fix: Elevation survey to confirm whether there's movement. Cosmetic cracks get patched and sealed. Structural cracks get traced to their cause before any repair.

Water collects against the foundation because of flat or reverse grading, short downspouts or blocked gutters. It saturates the soil at the beam and drives swelling, softening and erosion.

Builder-grade lots in fast-growing master-planned communities often ship with minimal slope. Flash Flood Alley storms dump inches of rain in hours, overwhelming that grading. On hillside lots, runoff from uphill neighbors adds to it.

• Puddles near the foundation after rain
• Erosion or exposed slab edges
• Downspouts draining at the wall
• Mildew or water stains on interior walls
• Soil pulling away from the slab in summer

Common in Avery Ranch, Ranch at Brushy Creek and newer Leander and Georgetown subdivisions. HOA or MUD approval is often required before installing French drains.

Our fix: Regrading, downspout extensions, French or surface drains, and sometimes root barriers, all designed to keep soil moisture around the slab more consistent year-round.