Auto Glass Repair and the Most Common Causes of Windshield Cracks

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Most Common Causes of Windshield Cracks


Picture this: You are cruising along in your brand new car, but get stuck behind a slow-moving truck carrying construction material. You drive some distance behind the truck before pulling into the parking lot of a convenience store. After picking up some supplies, you come out and see something that stresses you out right away: a crack on your windshield. New car, damaged already, without getting into an accident! Ah, thats terrible. Is that even possible?


Well, it is possible. Windshield cracks are actually quite common. They can happen to new cars or old alike. You might think that an accident is the only reason for a windshield to crack, it is sturdy glass after all! But, that’s not always the case. Windshield cracks can happen for a variety of reasons. Many of these situations are avoidable if you exercise caution.


Loose Stones on the Road


This is one of the most common reasons for windshield cracks to appear. If you are driving on a bumpy road covered with loose stones or gravel, be careful. Loose stones can hit your windshield after coming under the car’s tires and can cause cracks in the glass if there is enough force.The type of crack most commonly caused by loose stones is a spider crack.


Other Vehicles


Yes, that’s right. Simply driving behind another vehicle or following trucks carrying materials too closely, can cause stones or loose debris to fall on your windshield and cause it to crack. You should take extra care while driving behind vehicles carrying construction material and keep a safe distance.




Weather conditions can have an impact on the windshield glass. The heat from a harsh summer sun can cause the windshield glass to expand. Extreme cold weather can make it contract. If the glass expands or contracts, it becomes more fragile and easily susceptible to cracks. In rainy weather, hailstones could be a problem that could cause significant damage.The same goes for chunky bits of ice when it is snowing.


Poor Quality Windshield


If the quality of the windshield glass is not good, it can crack easily. In this case, it might have to be replaced. When you replace your windshield, insist on OEM parts, so that you get  a part that will last long.


Improperly Fitted Windshield


Another reason for damage is if the windshield is not installed correctly, to begin with. If the glass is not fixed into place, it will shake when the car is in motion. This stress on the glass can result in cracks. If you notice this happening, get your automobile checked by a professional and get auto glass repair done right away. Avoid doing a DIY for replacing your windshield glass, instead, engage qualified glass technicians for the job, they will do it right the first time.


Change in Pressure


If you are driving up or down a mountain, the change in altitude, will cause changes in the air pressure.These air pressure changes can affect glass and lead to damage.

If the crack is small, a rock chip repair might be enough to fix the damage. More often than not, the only option to repair a cracked windshield is having to replace it entirely. If you are not covered by a warranty or insurance, windshield replacement can be an expensive affair.


Driving with a cracked windshield is very dangerous. It can affect visibility for the driver which could lead to accidents. It doesn’t take long for a small crack to grow bigger with movement or impact. If your windshield has a crack, albeit a small one, go for professional auto glass repair without delay.

If you are in need of an auto glass repair or have questions about auto glass replacement, contact the experts at Michael’s Glass Company today at (215)-338-3293.