We do not install used auto glass, at Newmarket Auto Glass we replace broken windshields with brand new windshields. It is not a good idea to deal with windshield replacement shops which offer used windshields for replacement, because you never know the condition of a used windshield, and it may not be safe. We make sure all replacement jobs are done to perfection. All windshields and auto glass we carry are after market or OEM, ensuring quality, safety and peace of mind to our customers.