Concrete is durable, but excessive pressure, an incorrect nozzle, or holding the equipment too close to the surface can leave lines, expose aggregate, or worsen weakened areas. New, cracked, deteriorating, or previously repaired concrete may require additional care. Professional driveway washing uses equipment and cleaning methods suited to the condition of the surface rather than applying the same amount of pressure everywhere. Any existing cracks, loose sections, or damaged areas should be identified before cleaning begins so the service can be adjusted accordingly.