In what scenarios is a full windshield replacement preferred over a repair?

A full windshield replacement is preferred in scenarios where there are large cracks or damage near the driver's line of sight due to safety concerns. Visibility is critical for driving, and if the damage obstructs the driver's view or could compromise the integrity of the glass, replacing the windshield entirely is the best option. This ensures that the driver maintains optimal visibility without any obstruction that could lead to an accident.

In contrast, minor chips or small dents that are not in the direct line of sight can often be repaired without compromising safety. Repairs are generally sufficient for issues that are less severe and do not impede the driver's ability to see the road clearly. Therefore, a full replacement is reserved for more serious damage that poses a significant risk.