Austin, TX · Concrete Repair
Concrete Repair in Austin
Concrete repair in Austin for cracks on clay, flaking surfaces after a freeze, broken steps and worn slabs, with the cause found before anything is patched.
01 — What this covers
The work itself
- Crack cleaning and flexible sealing
- Repair of freeze-damaged and flaking surfaces
- Spall and edge repair with bonded mortars
- Resurfacing and decorative overlays
- Front step and landing rebuilds
- Sidewalk and walkway panel replacement
- Expansion joint replacement
- Driveway section cut-out and repour
02 — Detail
What's actually wrong with the slab
Most concrete damage in Austin falls into three groups. Movement cracks come from the ground, especially the expansive clay east of I-35. Surface damage, such as flaking and pitting, usually comes from the finish, the mix or a freeze. Edge and step damage comes from impact, settlement or water running where it shouldn't.
Each group has a different repair. Sealing a movement crack with a rigid filler fails within a season. Resurfacing a slab that is still moving cracks the new surface. Patching a broken step without fixing the settlement under it leaves you with a patched step that keeps dropping.
That's why a useful repair visit asks questions before quoting: when the damage started, whether it changes with the seasons, where water goes in a storm and what the yard looked like before the slab was poured.
03 — Detail
Freezes and flaking surfaces
Austin doesn't freeze often, but when it does it can be severe, as the February 2021 winter storm and the February 2023 ice storm showed. Concrete that was overworked when finished, poured too wet or never sealed can lose its top layer after a hard freeze, leaving rough patches and exposed sand.
Repairing scaling means removing loose material, cleaning the surface and applying a bonded resurfacing layer, either plain or with a broom or decorative finish. Done on a sound slab, it gives a uniform new surface for much less than replacement.
De-icing salts make scaling worse, especially on young concrete. If you need traction on steps during an ice storm, sand is kinder to the surface than salt.
04 — Detail
Cracks on the east side's clay
The dark Blackland Prairie clay moves more than most soils in Texas, and slabs on it crack in long lines, often parallel to the edges. Cracks that open in late summer and close after the rains are signs of that seasonal movement.
The practical repair is a flexible sealant that keeps water out of the crack and stretches as the slab moves. Water entering cracks feeds the clay unevenly and makes the next season worse, so sealing has real value even when it doesn't look dramatic.
When sections have tilted or dropped enough to create a trip edge, they may need to be lifted, or cut out at the joints and replaced. Replacing a single panel cleanly is often better than layering patches on a slab that keeps moving.
05 — Detail
Steps, landings and walkways
Front steps take the most abuse: weather, impact and settlement where they meet the house. Chipped nosings and broken corners can be rebuilt with forms and bonding mortar. A whole step that has dropped away from the landing may need to be removed and recast with a proper footing.
Walkways near big trees often lift at the joints as roots grow. Grinding a small lip is a quick fix; replacing a raised panel is a longer one. On protected trees, root cutting has limits, so the fix may need to work around the roots rather than through them.
Expansion joints between slabs, and between a slab and the house, dry out and fail over the years. Replacing the joint material keeps water and debris out and lets the slabs move without chipping each other.
06 — Detail
When to repair and when to replace
Repair makes sense when the slab is mostly sound and the problem is local: a few cracks, a damaged step, a scaled surface. Replacement makes sense when cracks are everywhere, pieces move against each other and the surface is failing at the same time.
Cost is part of the answer, but so is what comes next. Replacement lets you correct the slope, add a joint the old slab never had or change the size, while repair keeps the layout you have.
A good contractor will lay out both options when the choice is close and explain what each will and won't solve.
How we work
Step by step
- 01
Call to understand the damage, its history and how it's changing.
- 02
Visit to find the cause and check drainage and nearby trees.
- 03
Written estimate for the repair, with what it fixes and its limits.
- 04
Removal of loose material, repair and joint sealing.
- 05
Guidance to keep water and movement from undoing the repair.
What it costs
Repair costs depend on the type and extent of damage, access, whether sections have to be cut out or lifted, and the finish required. Small jobs often carry a minimum visit charge.
Questions
Concrete Repair — asked and answered
Why did my concrete flake after the freeze?
The top layer was weak, often from overworking or too much water at the surface, and freezing broke it loose. It can be resurfaced if the slab is sound.
Should I seal cracks in my driveway?
Yes, with a flexible sealant. Keeping water out of cracks slows the movement that makes them worse.
Can a tree root be cut to fix a raised sidewalk?
Sometimes, but protected trees have strict limits. The repair may need to bridge or work around the roots instead.
Will the repair be visible?
Usually, at least at first. Resurfacing or recoloring the whole area gives the most uniform result.
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