A lot of the “you need a new driveway” estimates that homeowners get are wrong. If your existing slab has another 5–8 years of structural life, the right move is targeted repair — and the difference between repair and replacement is significant.
Concrete repair makes sense when the slab has minor or moderate damage but is still structurally sound — the underlying base hasn't failed, the slab hasn't settled significantly, and the surface damage is localized rather than widespread. Repair extends slab life by 5–10 years on average.
Repair stops making sense when the slab has structural failures: large diagonal cracks running across the slab face, multiple settled sections, heaving at the joints, or extensive surface spalling. At that point the slab has failed and repair is just delaying the inevitable; full replacement is the right move.
Hairline to 1/2" cracks repaired with polyurethane crack sealant or epoxy injection (for structural cracks). The repair is flexible, weather-resistant, and stops water infiltration that would otherwise undermine the slab from below. Hairline cracks at saw-cut control joints are normal and don't need repair — but cracks running across the slab face do.
Settled slabs lifted back to original elevation by injecting polyurethane foam or a cementitious slurry under the slab. Common applications: settled sidewalk sections, sunken patios, driveway approach sections that have dropped at the apron. Much cheaper than tear-out and replacement, and the lifted slab is usable within hours.
For slabs with surface damage (spalling, pitting, light wear) but no structural issues, we apply a 1/4"–3/8" polymer-modified concrete overlay bonded to the existing slab. The overlay can be broom-finished, integral colored, or even stamped — turning a tired slab into a near-new surface for a fraction of replacement cost.
Control joints and expansion joints lose their sealant over time, allowing water and debris to penetrate. Resealing is a low-cost maintenance step that significantly extends slab life. We clean the joint, install backer rod where needed, and apply self-leveling polyurethane sealant.
Surface spalling (flaking, chipping at the surface) repaired with bonded patch material. Color-matched as closely as possible to the surrounding slab. Common cause: de-icing salt damage to slabs poured at lower PSI or finished too wet originally.
Concrete steps, stoops, and porches repaired or rebuilt. Steps are the highest-wear concrete on most properties (constant traffic, frequent freeze-thaw at the corners). We rebuild damaged steps with proper rebar reinforcement so they don't fail again.
If you've been told by another contractor that your slab needs full replacement, we'll come out, look at it, and tell you straight whether they're right. About 30% of the “needs replacement” estimates we second-opinion turn out to be candidates for repair instead. There's no reason for us to push replacement when repair is the right answer.
Concrete repair across St. Charles, O'Fallon, St. Peters, Wentzville, Lake St. Louis, Cottleville, Dardenne Prairie, Weldon Spring, and Defiance.
If the slab is mostly intact with localized damage (one or two cracks, minor settlement, light surface wear), repair is usually the right call. If the slab has widespread cracking, multiple settled areas, or has obviously failed structurally, replacement is the better long-term investment. We'll tell you straight which one you actually need.
Modern polyurethane and epoxy crack repairs are durable, flexible, and water-resistant. A properly-repaired crack will outlast the rest of the slab. The exception is cracks caused by ongoing settlement — fixing the crack without fixing the underlying base just produces another crack a few months later.
Yes — slab leveling (mudjacking or polyurethane foam injection) lifts settled concrete back to grade by injecting material under the slab. The slab is usable within hours. Works on sidewalks, patios, driveway approaches, garage floors, and pool decks.
A properly-applied polymer-modified concrete overlay typically delivers 10–15 years of additional service life on an existing slab. The overlay bonds to the original slab and shares its joint pattern. Re-sealed every 3–5 years like new decorative concrete.
