Any damage can, and in time will, spread and become more dangerous. Just because it's a small star or bullseye crack that doesn't affect the functionality of your car, doesn't mean it's not a safety hazard that should be addressed immediately. A damaged windshield left untreated can spider across the glass, and what was once a simple fix, will now cost you hundreds. Don't wait! Fix fix auto glass it now!
Any of these stone chips can be repaired. Beyond looking for these types of common chips, it is important to take into consideration the size of the damage. If the damage cannot be covered by a half dollar, the chip is too large to be repaired. Another important piece of information to consider is the acute area. The acute area is the area of the windshield directly in the drivers line of vision. It is the same size as a piece of paper being held horizontally in front of the driver. In this area, the National Glass Association does not recommend a repair being done unless it is no greater than .95 of an inch. An easier way to imagine this is that a quarter should be able to cover the entire area of damage in the acute area.
As a windshield installer for the past thirty five years, let me give you three good reasons not to repair your windshield. As windshield repair is a gimmick in my opinion.
"But it only takes one person to do what is right - the power of one," answered the boy with a big grin on his face. He held up one finger for his fix auto glass repair grandfather to see.
If a rock hits your windshield while you are driving when it is already cracked, this can cause it to shatter too and you will not be able to see the road. Dings and scratches generally won't do this but there is always that risk factor that you have to be cautious about.
Sometimes the weather stripping or window channel is torn and falling apart. This can jam the window or prevent it from moving the way it should. Also look for objects that might be jammed into the window path. There may be too much friction between the glass and the channel. You can lubricate the channel with silicone spray.
Windshield repair or replacement is totally depending upon the size and location of the damage and cracks. So, before going for any of these options just consult a glass specialist who can examine your shield and suggest if a repair will work or not. If damage from an accident is quite big then do not compromise your life, as you know better that windshield replacement is a necessity. Just bear in mind that your life is more valuable than anything else.