Concrete Repair for Driveways, Patios & Walkways

Hairline cracks in the joints — the joints working as intended. Not a defect.

Cracks across the field, widening yearly — movement underneath. Filling them buys a season; they reopen because the cause is not at the surface.

Surface flaking and spalling — usually freeze–thaw damage to the top layer. Structural concrete underneath is often fine, which makes this a resurfacing candidate.

Sunken or rocking panels — the sub-grade has gone. Isolated panels can be cut out and repoured; a run of them is telling you about the base.

Edges dropping away from an apron — the tie-in has lost support, which is where water concentrates.

The common calls: a corner panel that has dropped at the apron, a crack that has opened across two panels, a surface that has flaked where the car sits and drips, and edges that have broken away where a tire keeps going over them.

What decides the job is the same question as anywhere else — has the slab moved, or does it just look bad. A driveway that still sits flat and drains is a repair or a resurfacing job. A driveway with panels rocking underfoot, or an apron that has separated from the street, has lost its base, and that is a replacement conversation — covered on the replacement page.

Most driveway repair calls from Huntersville come from newer subdivisions whose slabs are showing their first real movement; on the older streets the question is more often whether the original concrete is worth keeping. Either way, we say which one it is on the site walk, and the estimate is written.

Hairlines sitting in the control joints are the joints doing their job and need nothing. A stable crack across the field — one that has not widened in a year — can be routed, cleaned and filled so water stays out of it. That is the whole point of crack repair: water in a crack is what turns a cosmetic line into a freeze–thaw failure.

A crack that is still moving cannot be fixed at the surface. Whatever is opening it — settling backfill, a root, water washing out the base at an apron — is still opening it, and any filler will split along the same line by the following spring. On those we look for the cause first. If the cause can be dealt with and the slab still sits flat, the crack gets sealed afterwards. If the slab has dropped on one side of the crack, it is a sunken-slab problem, below.

On a decorative surface, crack repair is also a color-matching problem. A filled crack on a broom finish disappears; on a stamped or stained field it does not, and the honest options are concrete resurfacing over the whole area or living with the line.

One panel sitting lower than its neighbor, a step at a joint, water pooling where it used to run off. Around Cornelius that is often lake-side fill that has kept compacting years after the house was built; around the rest of the lake it is red clay swelling and shrinking under a base that was never properly compacted.

If a slab has settled, here is what to weigh before deciding. Whether it is one panel or a run of them. Whether the concrete itself is sound or also cracked through. Whether the slab is decorative and worth preserving. And whether the base has finished moving. Lifting a settled slab back into place — mudjacking or foam leveling — makes sense for a single sound panel with a trip edge, where the slab is worth keeping and the ground under it has stopped. It makes less sense where the concrete is cracked through as well, where several panels have gone, or where the base is still moving, because a lifted slab over a live base settles again.

Where lifting is not the answer, isolated panels can be cut out and repoured on a rebuilt base, which is far smaller than a full tear-out. A run of sunken panels, or a slab that has both settled and cracked through, is a replacement. We will tell you which of those you are looking at, and if lifting is the right call we will say so.