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Burnet County seat

Foundation repair Burnet, TX.

Burnet sits on the Llano Uplift, where granite and limestone meet just below your slab. That rock is the whole story behind why foundations here move, and why they have to be repaired differently.

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The ground under Burnet doesn't behave like the rest of Central Texas

Drive east past the Balcones Escarpment and foundations crack because of expansive Blackland clay swelling and shrinking with the seasons. Burnet is a different animal. Here you're sitting on the Llano Uplift, where ancient Precambrian granite pushes toward the surface alongside fractured Edwards and Ellenburger limestone. The plasticity index that dominates conversations in San Antonio matters far less than one stubborn fact: bearing capacity is wildly uneven from one corner of a lot to the next.

Bedrock can sit within inches of grade in one spot and drop ten feet or more a few steps away, separated by pockets of decomposed granite, residual silty clay, and colluvial fill that all compress at their own pace under load. A slab that looks like it's resting on solid rock may actually be bridging a shallow soil pocket, or spanning a void left where water dissolved a channel through the limestone over the centuries.

That's why the tell in Burnet is usually subtle and one-sided. A single door that suddenly binds, a lone racked corner, a hairline that fans from one window, these show up long before a house looks visibly off, because the support is failing in one place rather than everywhere at once.

Why concrete pressed piers come up short here

When bedrock is shallow and irregular, the concrete pressed piers most contractors default to often refuse early, stopping on a soft soil lens instead of reaching competent rock. You end up with a foundation propped at inconsistent elevations.

GroundLock drives hydraulically advanced galvanized steel piers to verified refusal, pushing past the soft zones until load pressure confirms real bearing strata. The galvanized steel also stands up to the mild corrosion you get where decomposed granite and groundwater meet ferrous metal over decades.

Measuring the slab before anyone touches it

Every project in Burnet starts with a free elevation survey accurate to ±0.01 in. (1/64 in.), taken across a grid of interior and perimeter points. The output isn't a sales pitch, it's a differential settlement map showing exactly which corners have dropped, where the slab is doming, and by how much.

In country where bedrock relief can change sharply over a single span of a few feet, that map is the difference between placing piers where the load actually needs them and spacing them by rule of thumb. Because soft pockets can sit anywhere under the footprint, interior settlement, floors that slope toward the center of the house, is common here, and it calls for interior pier placement, not just perimeter work.

From the survey we build an engineer-backed plan: pier count, exact positions, and a lift sequence that brings the slab back toward level without forcing new stress across neighboring panels. Most projects land between $4,500 and $14,000, and the repair carries a lifetime transferable warranty, a genuine advantage on resale, where Burnet buyers and their inspectors tend to scrutinize foundation history closely.

What we look at before recommending anything

A few things we check on every Burnet home, and a few you can watch for yourself between rains:

  • Diagonal cracks running from door and window corners, plus gaps that open at the roofline rather than evenly along the base, classic signs of uneven bearing, not uniform settlement.
  • Doors that bind on one side of the house but swing fine on the other, which points to localized support loss over an irregular bedrock surface.
  • Floors sloping toward the interior, a flag for a soft soil pocket under the middle of the slab.
  • Roof runoff: downspouts discharging within two feet of the stem wall concentrate water that softens the silty fines between granite outcrops.
  • Grade around the perimeter, we want roughly six inches of positive slope over the first ten feet so water moves away, and we'll flag where drainage work should follow the repair.
  • Surface rock that can fool you: a granite outcrop in the yard tells you nothing reliable about what sits directly beneath your slab a few feet away.

Burnet foundation questions, answered

My neighbor blames the clay, but my lot is half rock, so why is my slab moving?
Because in the Llano Uplift the problem usually isn't clay swelling, it's uneven bearing. Bedrock sits at different depths across your lot, so one corner can rest on solid granite while another spans a pocket of soil that slowly compresses. That difference is what cracks a slab here.
There's granite poking out of my yard. Doesn't that mean my foundation is on solid ground?
Not necessarily. A visible granite outcrop and a deep, soft soil pocket can sit just a few feet apart. Surface geology is a poor predictor of what's directly under your slab perimeter, which is exactly why we measure the slab and drive each pier to refusal rather than assuming.
Why steel piers instead of the concrete ones another company quoted?
On Burnet's shallow, irregular bedrock, pressed-concrete piers frequently refuse early on a soft lens instead of reaching competent rock, leaving the slab supported at uneven heights. Our galvanized steel piers are hydraulically driven past those soft zones to verified load-bearing strata.
How deep will the piers actually go on my place?
There's no fixed number, we drive to refusal, not to a set depth. Around here that often lands anywhere from 10 to 25-plus feet, because how far the pier travels depends entirely on where competent rock shows up beneath that particular spot of your foundation.
Can a pier just stop on a soft spot and fool everyone into thinking it's done?
That's the real risk in this geology, which is why we document the drive pressure or stroke count at which each pier terminates. That record confirms the pier reached competent bearing instead of parking on a soft soil lens, ask any contractor working out here for the same.
We catch a lot of Hill Country rain, does drainage really matter if I don't have expansive clay?
Yes. Residual soils over granite and limestone still develop perched water in heavy rains, and repeated wetting and drying of the silty fines lets them consolidate under load. Keeping six inches of fall over the first ten feet and moving downspout water away from the stem wall protects the repair.
Will the lifetime warranty actually help me when I sell in Burnet?
It transfers to the next owner, so it conveys as a documented repair with engineered backing, a meaningful disclosure in a market where buyers and inspectors look hard at foundation history. The piered sections ride on steel below the active soil and shouldn't move with the seasons again; that's what the warranty covers.
Burnet services

What we do in Burnet

Every job starts with the same free elevation survey. These pages cover what each repair involves on Burnet soil, what it costs, and how long it takes.

Steel pier foundation repair in Burnet

Galvanized piers driven past the active clay in Burnet until they seat on load bearing ground.

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Slab foundation repair in Burnet

What a moving slab looks like on Burnet soil and how the lift is planned and verified.

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House leveling in Burnet

How much of the original elevation a Burnet house can safely recover, and what that costs.

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Foundation leveling in Burnet

Bringing a settled Burnet foundation back toward level without stressing the framing.

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Foundation repair cost in Burnet

What actually sets the price on a Burnet job, from pier count to access and drainage.

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Foundation inspection in Burnet

A free elevation survey of your Burnet slab, measured to a sixty fourth of an inch, with a written report.

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Foundation settlement repair in Burnet

Why one corner of a Burnet house drops while the rest stays put, and how it is stopped.

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Sinking foundation repair in Burnet

Signs a Burnet foundation is still moving and what it takes to hold it in place.

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Foundation stabilization in Burnet

Transferring the weight of a Burnet structure off the soil that keeps shifting.

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Foundation underpinning in Burnet

How underpinning works under a Burnet home and when it is the right call.

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Residential foundation repair in Burnet

The whole process for Burnet homeowners, from first survey to warranty.

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Commercial foundation repair in Burnet

Stabilizing Burnet buildings around tenants, column loads and operating hours.

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Foundation guides

Foundation guides for Burnet homeowners

Plain-English explainers from our engineer-backed team — how the work is done, what it costs, and what the warning signs mean.

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