Repairing a cracked windshield involves injecting a special resin into the crack to fill and bond it. This can restore the structural integrity of the windshield and often results in a seamless repair that is difficult to detect. Windshield repair is typically less expensive than replacing the windshield and can be completed in less time.
If the crack is large, located in the driver's line of sight, or has compromised the structural integrity of the windshield, then replacement will be the safest option. A cracked windshield can impair visibility, increase the risk of damage to the interior of the vehicle in the event of an accident, and adversely affect the vehicle's safety features such as airbags and windshield wipers.
Consider consulting with an auto glass specialist to assess the damage and provide you with the best course of action. They will be able to determine whether a repair is feasible or if a full replacement is necessary. For safety reasons, it is always recommended to prioritize the structural integrity and visibility of the windshield when making this decision.