A lot of cracked, sunken and flaking concrete does not need to be torn out. Concrete repair in Plainfield, IL can lift a settled driveway panel, seal the cracks that let water under a patio, or put a new surface on a salt-pitted walk for a fraction of what new concrete costs, as long as the slab underneath is still worth saving.
We seal cracks, lift settled slabs back to level, resurface flaking concrete and cut out and repour the sections that are past saving, on driveways, sidewalks, patios, steps and garage floors. The first visit is a diagnosis, not a sales call. If a repair will not hold, we will tell you before you spend money on it.
What Is Your Concrete Telling You?
The fix depends on what failed: the surface, the slab, or the ground under it. These are the patterns we see most, and what each one usually means.
- Thin cracks where both sides sit levelConcrete shrinks as it cures and nearly every slab cracks somewhere. If the edges line up and the crack is not growing, it is cosmetic. Seal it so water and salt stay out.
- A crack with a lip, one side higher than the otherSomething underneath moved: settled fill, a washed-out base, or a tree root pushing up. Filling the crack will not fix the step. The panel needs leveling or replacing.
- Pitting, flaking and a rough surface (spalling)The top layer has broken off, usually from deicing salt working through freeze-thaw cycles, sometimes from a weak finish on the original pour. The slab may still be sound underneath.
- A slab that has dropped along the garage, the house or the stoopFill placed against a foundation after construction keeps compacting for years. The slab follows it down and water starts running toward the house.
- Panels lifted by roots or frostCommon on front walks and parkway sidewalks. Grinding can take off a small lip. Bigger heaves need the panel out and the root dealt with.
Concrete Crack Repair
For concrete crack repair, the crack gets opened up and cleaned out, then filled with a flexible sealant that moves with the slab through summer heat and winter cold. Rigid fillers look neat for a season and then pop out, because the crack keeps opening and closing. Crack sealing is the least expensive repair on this page and the one most worth doing early: an open crack lets water reach the base, and a soft base is how a cracked slab becomes a sunken one.
It will not make the crack disappear. A sealed crack is still visible. If appearance is the main complaint, resurfacing or replacement is the honest answer.
Sunken or Tilted Panels
A slab that has sunk but is still in one piece can usually be lifted back into place instead of broken out. A panel that is broken apart, pushed up by a root or sitting over soil that is still washing out is a replacement job instead. Our concrete leveling and mudjacking page covers both lifting methods, what lifting costs, and how to tell whether your slab is a candidate.
Concrete Resurfacing for Spalled Concrete
Resurfacing bonds a thin cement-based overlay over a slab whose surface has flaked but whose body is still solid. Loose material is ground or scraped off, deep spots are patched, and the overlay goes on across the whole area so the color stays even. Done on the right slab it restores a smooth, uniform surface for years.
Done on the wrong slab it fails fast. An overlay cannot stop movement, so resurfacing over cracks that are still opening, or over a sunken panel, just puts a new crack in a new surface. Plan on sealing a resurfaced driveway or walk and going easy on salt afterward. Salt is usually what caused the damage in the first place.
Section Replacement: When One Panel Is Beyond Repair
Concrete is poured in panels separated by joints, which makes it possible to saw-cut out one or two bad sections, rebuild the base under them, and pour new concrete to match the height of the panels around them. This is common on sidewalk and walkway sections that heaved over a root and on driveway panels next to the garage.
The new concrete will not match the old in color right away. Fresh concrete is lighter, and the difference softens over a few seasons but rarely vanishes.
Garage slabs have their own problems, from salt pitting to fill settling along the foundation. Our garage floor repair page covers those in detail.