So since 1992, we have been providing windshield related services to clients all across Buffalo & Western New York. A common question we are asked is when can we repair a windshield vs installing a new one... Most typically, if the crack is smaller than that of a credit card, we can use a stone chip repair that will keep the crack from spreading. However, if the crack is larger than a credit card, in most cases you will need to install a new windshield.