FAQ :Auto Glass : Chip Repair : General : Windshields : Auto Glass : Chip Repair Q : What is the largest size of a windshield chip you can repair? Questions & Answers Q : What is the largest size of a windshield chip you can repair? A : The maximum size of chips for repair depends on the size of available equipment. At Grand River Glass the largest size we repair is chips no larger than the Canadian $1 coin, or "loonie". For larger chips we usually recommend complete windshield replacement. chip, repair, maximum, size, » Still have a Question? Ask us here!