To prevent a windshield crack from spreading, act quickly by covering the crack with clear tape to protect it from dirt and moisture. Avoid extreme temperature changes, such as blasting hot air or using cold water on the windshield. Parking in the shade can help reduce the heat buildup on the glass. Scheduling a professional windshield repair as soon as possible can stop the crack from expanding. If the crack is severe, consider windshield replacement. For expert care and reliable service, trust De Leon Auto Glass for all your windshield repair and replacement needs.