Its important to note that the automobile windshield chip repair exterior trim and moldings that we can see on the outside of the glass are for looks only. The actual water seal comes from the "urethane" adhesive which is used to create the bond. Its in this urethane that the water leak is originating.
To ensure that you get the best auto glass replacement you simply need to let your fingers do the walking. Okay, so you aren't going to use the phone book but you can hop on the internet. You need to find a reputable company that comes with good customer reviews, a quality guarantee and, of course, someone that will help you deal with your insurance company, and having one that can give you a free estimate over the phone or online is an added bonus.
A lot of people are confused between repair and replacement. There are those that opt for ready home kits to repair their windshields only to find out that they could not fix the problem. In essence, simple damage such as chips or cracks that is less than 3 inches can be repaired. However, when it becomes severe, you need to have it replaced. Also, damage within the critical vision area cannot be repaired so no matter how small it is, fix auto glass is the only solution.
When I first started my windshield repair business I was excited beyond belief. I was going to make $500 per day and finally live life on my terms. I'd be "CAPTAIN WINDSHIELD REPAIR," blazing a trail through my area, leaving all the other windshield repair businesses in my dust. Was I ever wrong.
If the crack looks exactly the same when completed, it's very likely the technician didn't inject the resin properly. A properly completed repair with cause each area of the damage to disappear from at least from one angle of vision (ex: looking from one side, looking from below, looking from above, etc.).
Dash repair is an art and a craft, just like all automotive interior repairs. If the steps are followed right and patience is used in your repairs you success will be good.