Stone damages spread. Windshield repairs are a process that is meant to, at best, stop them from spreading into long cracks, or at the very least, to delay that from happening.
There is NO GUARANTEE that they will NOT spread. The stresses on a windshield, such as temperature, temperature changes on the glass when the A/C or defroster is used, or the flexing of the windshield when you drive over bumps or corner can sometimes cause the repair to spread.
In the event that this does occur, my warranty is that if the damage does spread within one year after I repair it, I’ll re-fix it free of charge.
Canes Windshield Repair is not responsible to replace any windshields in the event that the damage spreads into a long crack, either during or after the repair process.