Smaller cracks, less than 1/4 inch wide, can be repaired with a concrete caulk or liquid filler.

Patching compounds typically are mixed with water and applied with a trowel.

They have a texture similar to grout and can be smoothed and textured to blend with the surrounding area.

Overhead view of a prominent crack in concrete

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However, the color of the patch will look like new concrete and will not match the old concrete.

Hiding the patch completely requires painting the surface with an appropriate concrete paint.

Before You Begin

Take caution before beginning your repair and follow the patching compound’s directions.

Chisel the crack with a hammer and masonry chisel to widen the base of the crack and to dislodge any loose material from the old concrete.

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Clean the Crack

Remove all debris from the crack, using a wire brush.

If desired, clean the crack with a pressure washer or a garden hose and spray nozzle.

Work carefully to remove all dust and grit from the crack.

Remove all debris from the crack, using a wire brush. If desired, clean the crack with a pressure washer or a garden hose and spray nozzle.

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It’s OK if the surfaces are wet, but there should be no pools of water.

Mx the Compound

Mix the concrete patching compound, following the manufacturer’s directions.

Fill the Crack

Trowel the compound into the crack.

Remove all water and debris from the crack with a wet/dry shop vacuum or a brush. Work carefully to remove all dust and grit from the crack. It’s OK if the surfaces are wet, but there should be no pools of water.

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Fill the crack up to the surrounding concrete surface.

Allow Compound to Cure

Let the compound cure as directed.

Seal the Surface

Paint or seal the surface of the patch and surrounding area, if desired.

Mix the concrete patching compound, following the manufacturer’s directions.

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Alternatively, many products come in bottles with an applicator tip.

If a crack is more severe, you should definitely call a concrete crack repair service.

Smallercracks can be repairedwith a concrete caulk or liquid filler.

Trowel the compound into the crack. Stab the trowel into the compound to remove air pockets and help work the patching material deep into the crack. Fill the crack up to the surrounding concrete surface.

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Crack sealing can last up to eight to 10 years if done properly, making it a dependable treatment.

Smooth the surface of the patch with the trowel, feathering the compound into the surrounding concrete.

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Brush the surface of the patching compound with a dry paintbrush to texture the surface, if desired.

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Let the compound cure as directed.

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