Slab foundation repair stabilizes a settled concrete slab by driving piers down to stable soil and lifting the affected areas as much as the structure will reasonably allow. In the Round Rock area, most projects run roughly $4,500 to $12,000, depending on how many piers are needed, depth, and access.
Quick Facts
| Typical cost | ~$4,500–$12,000 (Central Texas; varies by pier count and depth) |
| Timeline | Most homes: 2–4 days on site |
| Best for | Post-tension or conventional slab-on-grade homes with settled, sinking, or cracking areas |
| Warranty | Coverage depends on the repair type, site conditions, and the terms of the signed agreement |
Signs You Need Slab Foundation Repair
Slab movement usually shows up in ways you can see and feel long before anyone talks about elevations. Watch for:
- Doors and windows that stick, drag, or won’t latch the way they used to
- Cracks running at an angle from the corners of doorways and windows
- Cracks in exterior brick or the mortar joints, often in a stair-step pattern
- Gaps opening between the wall and the crown molding, cabinets, or countertops
- Floors that feel sloped, bouncy, or noticeably uneven when you walk them
- Separation where the fireplace or exterior trim pulls away from the house
- Hairline to wide cracks in the slab itself, sometimes visible under flooring
One of these on its own is not always a foundation problem. Several of them together, especially on the same side of the house, usually means an area has settled and it is worth having someone take a look before it gets worse.
How Slab Foundation Repair Works
Here is what actually happens when we repair a slab, and what you will see and hear on site.
- Evaluation and elevations. We measure the floor across the whole slab to map the high and low points. This tells us which areas have settled and how much, so the repair plan is based on the elevations, not a guess.
- Repair plan and pier layout. Based on the readings and the site conditions, we mark where piers go. You get a plain-English explanation of what we found and clear repair options before any work starts.
- Access and excavation. Crews dig access holes at each pier location, usually around the perimeter and sometimes through the interior slab where needed. Expect some noise, some dirt, and tarps protecting your floors.
- Driving piers to refusal. We drive 3-inch concentric steel piers straight down using the weight of your home until they hit refusal, meaning deeper, stable soil that can carry the load. This is the part that transfers weight off the moving surface clay.
- Lifting the settled areas. Once the piers are set, we lift the low areas as much as the structure will reasonably allow. The goal is to stabilize the foundation and close movement, not to force a house back to perfectly flat and risk cracking finishes.
- Backfill and cleanup. We fill and compact the access holes, grade the soil back, and clean up. On engineer-reviewed projects, the engineer inspects the work and provides final documentation.
Slab Foundation Repair Cost
There is no single price for slab repair because no two settled slabs are the same. What we can give you is a real range for Central Texas and an honest breakdown of what moves the number up or down.
| Scope | Typical Central Texas range |
|---|---|
| A few perimeter piers (localized settling) | $4,500 – $7,000 |
| Moderate repair (one side of the home) | $7,000 – $12,000 |
| Extensive repair (multiple sides / interior piers) | $12,000 – $25,000+ |
| Per steel pier (rough per-unit guide) | $900 – $1,600 each |
What moves the price:
- Number of piers. The single biggest factor. More settled area means more piers.
- Depth to stable soil. In Blackland Prairie clay, depth to refusal varies lot to lot. Deeper piers cost more.
- Interior vs. perimeter. Interior piers mean breaking through the slab and flooring, which adds labor.
- Access. Tight side yards, mature landscaping, patios, and concrete over the work area all add time.
- Severity. A slab that has moved a long way, or one with plumbing complications, takes more work to stabilize.
- Pier type. Concentric steel piers versus a hybrid steel-and-concrete option changes the cost.
We give free estimates to homeowners and commercial owners, and you get a written scope, not a vague “contact us for pricing.”
Steel Piers vs. Hybrid Piers
Most slab repairs in this area use one of two pier systems, and the right one depends on your soil, your budget, and the repair plan.
Steel piers are 3-inch concentric steel driven to refusal, transferring the home’s weight down to deeper, stable soil. They reach depth well in our expansive clay and are the workhorse for slab settling.
Hybrid piers use a steel upper section over concrete cylinders below, also driven to refusal. They are an honest budget option that can be the better call on some projects. Adjustment charges may apply after the initial period of the warranty term.
If a job genuinely calls for one over the other, we will tell you why based on the elevations and site conditions, rather than defaulting to whatever costs the most. On some homes with limited, shallow movement, monitoring and drainage improvements may be the smarter first step before any piering at all.
Local Proof
Round Rock and the surrounding Williamson County towns sit on Taylor Black Clay, part of the Blackland Prairie. That clay swells when it is wet and shrinks when it dries, so a dry summer followed by a heavy, wet fall is exactly when we see slabs move and new cracks show up. It is why slab repair is so common here and why water management around the foundation matters as much as the piers.
Financing Options
Foundation repair is a real expense, and you should not have to put it off. We offer financing subject to credit approval, accept all major credit cards, and provide discounts for military, first responders, firefighters, law enforcement, nurses, retired teachers, and seniors. See our financing page for details, or ask us when we come out.
Frequently Asked Questions
How long does slab foundation repair take?
Most homes are done in two to four days on site. Larger projects with interior piers or difficult access can run longer. We give you a realistic timeline in the estimate, based on the pier count and site conditions.
Will my slab be perfectly level after the repair?
No, and any company that promises “perfectly level” is overpromising. We lift the settled areas as much as the structure will reasonably allow to stabilize the foundation. Pushing for perfectly flat can crack finishes and do more harm than good.
Does slab repair come with a warranty?
Warranty coverage depends on the repair type, site conditions, and the terms of the signed agreement. We will walk you through exactly what your repair includes before you sign anything.
Do I need an engineer for slab foundation repair?
Sometimes. On many projects an independent, professional engineer reviews the elevations and repair plan, inspects the work, and provides final documentation. It is not a rubber stamp, and when a job calls for it, we will tell you.
Can foundation repair stop my slab from ever moving again?
Repair stabilizes the affected areas and helps reduce the risk of continued movement, but long-term performance also depends on water management. Drainage, gutters, grading, and any plumbing leaks all affect the soil under your slab. We will point out what to watch.
What if a plumbing leak is causing the movement?
Water under a slab can drive soil movement. After foundation work, a hydrostatic plumbing test can confirm whether leaks are affecting the soil. We do not sell plumbing repair, but we will identify the issue so you can get it addressed.
How much does slab foundation repair cost in the Round Rock area?
Most slab repairs run roughly $4,500 to $12,000, with extensive projects going higher. The number depends mostly on how many piers you need and how deep they have to go. We give free, written estimates.
Is it worth repairing, or should I just wait?
If you are seeing several signs on the same side of the house, waiting usually means more movement and a bigger repair later. Having us take a look is free, and sometimes the answer is simply to monitor and improve drainage.
—
Related: Foundation Piers & Piering Systems · Pier & Beam Repair · House Leveling · Drainage & Water Management
Ready to find out what is actually happening under your home? Schedule an inspection or call (512) 746-7223. We are owner-led and locally operated, based in Round Rock and serving the Austin area and Central Texas. Free estimates for homeowners and commercial owners.