Concrete Crack & Floor Repair in Kansas City, KS

Concrete crack and floor repair is the part of a coating job that people do not see, and in Kansas City, Kansas it is often the biggest part. Census survey data summarized by Point2Homes shows that nearly half of KCK's housing was built before 1960. Slabs that old have been through decades of freezing winters, settling, spills and patching. A coating is only as good as the concrete under it. If the surface is flaking, cracked or uneven, the coating will follow those flaws or fail along them.

What we repair

• Hairline and shrinkage cracks: opened up slightly and filled so they do not show through the finished floor.
• Wider and structural-looking cracks: filled with rigid or flexible repair material depending on whether the crack is still moving.
• Spalls and pits: chipped or popped-out areas, often near the garage door or where deicer has sat, patched level.
• Broken joint edges: control joints rebuilt so tires and carts do not catch them.
• Scaled or worn surfaces: large areas of flaking skimmed or resurfaced before coating.

Why freeze-thaw matters here

Kansas City's January average low is 22.2°F, with plenty of days that warm back above freezing, according to Wikipedia's climate data for the Downtown Airport. Every time water in a crack or pore freezes, it expands and pushes the concrete apart a little more. Deicer makes it worse, because the salts crystallize in the pores as they dry. Angi's Kansas City guide notes that freeze-thaw damage can be bad enough to need resurfacing before a coating goes on. Bare garage slabs show it first, especially right inside the door.

Moving cracks versus settled cracks

Not every crack is the same. A crack that formed years ago and has stopped moving can be filled with a rigid material and coated over. A crack that is still opening, or one where one side is higher than the other, is telling you the slab or the soil under it is still shifting. Coating over it will just make a crack in the coating. We point out cracks like that, explain what we see, and tell you if a structural or drainage fix should come first.

Resurfacing

When a slab is worn across most of its surface, patching spot by spot does not give a good result. HomeGuide lists concrete resurfacing at $3 to $7 per square foot. Resurfacing puts a thin cement-based layer over the whole floor to create a new, even surface for the coating. It is usually cheaper than tearing out and pouring a new slab, and it fixes the look and texture problems that a coating alone would show.

Repair without a coating

Sometimes the right answer is repair now and coat later, or repair and seal. If budget is tight, or the slab needs time after a drainage fix, we can fill cracks and patch damaged areas on their own. That stops water from getting further into the concrete through the winter. Ask about it at the estimate.

What we will not cover up

We do not use a coating to hide a problem. If a slab is heaving, has water coming up through a crack, or has a crack that is clearly getting wider, we say so and tell you what kind of contractor to call. You should know that before you spend money on a floor.