How do I fix cracks in a concrete foundation?
Small CracksHave any foundation cracks inspected by a professional to ensure that they are not a sign that the foundation’s integrity is in danger. Fill smaller cracks with siliconized latex caulk. Insert the tip of the caulk into the crack as deeply as possible and overfill the crack just a bit, then smooth the surface with a metal trowel and allow it to dry 24 hours.Large CracksTrowel concrete patch into wider cracks. Apply one thin coat, allow it to set, then fill the crack completely and smooth the patch with the face of the trowel. Let the concrete patch dry 24 to 48 hours.ResurfacingResurface the concrete foundation to cover repairs. Apply a thin coat of concrete bonding agent, allow it to become tacky, then trowel on a thin, even coat of prepared concrete.
