4 Factors That Can Crack a Windshield

At King’s Glass, we’re performing auto glass repairs every day in Calgary. In our years, we’ve observed several common reasons as to why your windshield can crack. Below, we outline of why there are cracks in your windshield and what you can do to repair them.

Hail Storms

Hails storms occur in almost any season here in Calgary. Hail the size of a nickel can have a huge impact on the front or rear windshield of your car, causing small chips that can expand into cracks over time.

Faulty Installation

Although it’s rare to see a poorly installed windshield from a car fresh off the manufacturing floor, it isn’t as rare to see a defective windshield replacement. In most of these cases, a previous technician either didn’t set it properly into the framework or ordered the wrong windshield. With this, the only real solution is to have a new windshield installed properly.

Extreme Temperature Fluctuations

Here in Calgary, temperatures fluctuate dramatically during the fall and spring seasons – and even in winter we can see dramatic changes. If the temperature rises above freezing suddenly – such as when we go from freezing to several degrees above zero within the span of 24-hours – it can affect the outer edges of your windshield. Often, this means having to repair or replace the entire windshield, depending on how severe the damage.


One reason for fluctuating temperatures is sunlight. The sun’s heat on the metal and other materials surrounding your windshield can cause the edges of the glass to expand faster than its centre. This leads to cracks along the surface of the windshield which gradually expand through the centre. We recommend that you park your car inside, out of the sun, whenever possible.

Although you can’t control the weather or that there’s rocks on the road, there are small steps you can take to prevent cracks from occurring. Make sure that you use a reputable auto glass replacement company in Calgary, such as King’s Glass. Our years of experience ensure that your windshield is ready for the weather. And if you need a windshield repair or replacement, we’re always ready to help. Book an appointment with us now!