How to Fix a Crack in a Garage Floor

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Garage floors are commonly made of concrete, which is supposed to be durable and long-lasting. However, due to weight, use, weather and other factors, a concrete garage floor can develop cracks. The cracks in a garage floor should be repaired as soon as possible to help stop them from spreading and possibly causing more damage. Proper site preparation is essential before beginning repairs to cracks in a concrete garage floor.

Things You'll Need

  • All-purpose cleaner and grease remover
  • Paper towels
  • Stiff-bristle brush
  • Shop vacuum
  • Concrete crack caulk
  • Trowel
  • Spray the area around the crack in the concrete garage floor with an all-purpose cleaner and grease remover. Allow the cleaner to work for several minutes as it dissolves any stubborn stains such as oil residue. Wipe the surface with paper towels to remove the cleaner and loosened material. Use a second application of spray if necessary.

  • Remove dirt, dust and debris from the crack with a stiff-bristle brush. Move the brush along the length of the crack, working the bristles into the crack to access the dirt and debris. Sweep as much of the loosened dirt as possible out of the crack with the brush.

  • Vacuum the crack in the concrete floor and the surrounding area with a shop vacuum. Remove any dirt, debris and dust that was loosened with the stiff-bristle brush. Spend some time making sure the crack and the surrounding area are as clean as possible.

  • Apply a line of concrete caulk along the length of the crack. Trowel the caulk into the crack and overlap it onto the concrete on either side for 1 or 2 inches.

  • Allow the caulk to thoroughly cure for at least several hours or as directed by the caulk manufacturer.

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References

  • Photo Credit concrete surface image by starush from Fotolia.com
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