The key to successful repair of a crack in the asphalt is to reach it without delay. Cracks in asphalt can be caused indoor humidity in the edges of the crack and they will enlarge. Over time, if left untreated, this can lead to more and more cracks and increased spending to repair. The best time is right to repair cracks before applying asphalt sealer over the entire surface, but sometimes individual reparations are needed at times beyond that. The materials needed to complete this project are available at most home improvement or hardware stores.


  • Pull any crack vegetation and deep roots with herbicide spraying before leaving overnight. Remove loose pieces of asphalt crack. Asphalt sweeping with a broom to remove debris from the area.
  • Spray down the crack with a garden hose and apply asphalt cleaner in the area around the crack. Rub the area with a stiff brush and then use the hose to wash the cleaner. Allow the area to dry completely.
  • Fill no more than 1/2 inch with a filling made of asphalt cracks. Use a caulking gun and force the compound into the crack and smooth with trowel or putty knife.
  • Larger repair by pouring the compound or using a palette that loads the compound into the crack cracks. Smooth with a trowel. Avoid excess compound in the asphalt surface. You leave the compound to dry stuffing according to package directions.
  • Lightly spray the area around the crack with a garden hose. Pour acrylic sealer for asphalt roadways along the total length of the crack and let about 6 inches on each side spread. Sealant softens the line with a soft brush and feather out slightly on the asphalt. Let dry for 24 hours before walking or driving on asphalt repair it.