Generally automobile windshield chip repair grow into cracks very quickly. Not taking the vehicle in to get it repaired immediately can result in a crack that is too wide to repair.
First things first the chip should be repaired before it gets filled with grit. To do this, the chip needs to be drilled while the cracks in it get vacuumed. An acrylic or crystalene resin is then inserted via syringe into the chip to restore the air trapped in the crack. Afterwards it is dried with UV light which hardens the substance and reinstates the original state of the glass. Acrylic resin is made up of carcinogenic acid which turns the chips yellow over time. Crystalene resin has better clarity and doesn't change color over time. It's available at ultra-low consistency and high consistency. Extra resin is scraped away and then polished for a finishing touch. This kind of treatment usually runs about $45-$100.
Warranties may not seem important, but they really are when it comes to windshields and windshield replacement. A reputable company will certainly stand behind their work and have no problem guaranteeing that work. Any future incident could be the result of work that was not done well and you want to make sure that you have a recourse that will not have additional costs.
The secret to doing a lot of repairs is knowing where and how to contact people. Mostly it is a function of letting them know you there and able to do the repair. Problem is most people wake up thinking about how to find someone who needs windshield repair.
#3) Non-Complicated Equipment! It seems as though just about every company is trying to come up with another gimmick (bells & whistles) to add to their repair system. But, by over complicating the process they are making it difficult for new repair techs to get the hang of the repair process.
Windshield chips and cracks can usually be patched for under $90. You're going to pay hundreds to replace the whole thing. In this case, your best bet is to keep hunting for auto insurance quotes and pay the repairs out of pocket.