Is an unsightly windshield crack distracting you on the road? Knowing what type of windshield crack you have can empower you to identify issues early and decide how to go about repairing them. Whether it's a small chip or a larger fracture, each type of break has unique characteristics, and getting familiar with them can help you better maintain your vehicle while ensuring a clear view of the road ahead.
Star Break
A star break has a visible central impact point surrounded by numerous straight cracks that radiate outward and resemble a starburst pattern.
This windshield crack occurs when a hard object (like a rock) strikes the windshield with considerable force. The resulting crack can have multiple legs—sometimes extending to four or more—which makes the repair a bit more complex than other break types.
Fixing a star break crack typically requires specialized tools to fill all the legs of the star with resin. Star breaks that are left untreated can spread and compromise the rest of the windshield. Depending on the size of the star break, the windshield may need to be replaced altogether.
Bull’s Eye
A bull’s eye crack appears as a circular, cone-shaped break that stems from a direct impact, usually caused by debris from the road. This type of crack has a pronounced center, resembling a target, and typically features a smooth outer ring.
Bull’s eye windshield cracks are generally larger than simple surface pits and are often straightforward to repair. Although the newer, thinner windshields typically don’t see bull’s eye cracks often, a full windshield replacement may be necessary if the crack is on the larger side.
Half-Moon Crack
A half-moon crack is a semi-circular chip that resembles half of a full circle. This type of break is often the result of a smaller rock or stone hitting the windshield but is less frequent than other types.
The shape and characteristics of a half-moon crack can make it slightly more challenging to repair than a typical bull’s eye, because it doesn't have the same straightforward structure. Depending on the size and location of the half-moon crack, you may be looking at a full windshield replacement.
Long Crack
Long cracks extend several inches across the windshield and impact visibility while driving. These are often caused by a significant impact and temperature fluctuations.
Unlike other break types, long cracks are typically straight and can vary in width. These cracks often start at the initial point of impact and stretch outwards diagonally or horizontally.
Long cracks are typically more challenging to repair because of their length and potential for further spreading. In many cases, a long crack often calls for a full windshield replacement, especially if the crack is longer than around 6 inches.
Edge Crack
Edge cracks occur at the perimeter of the windshield, typically starting within two inches of the edge. These breaks are often a result of improper installation or damage from road debris. Edge cracks can be particularly concerning because they may spread quickly if left untreated.
Because of their location, repairing edge cracks is often more complicated than repairing cracks in the center of the glass, and in some cases, they may require a full windshield replacement.
Stress Crack
Stress cracks, also known as spontaneous cracks, often appear without anything hitting the windshield and result from internal stress within the windshield glass. These cracks can occur due to extreme temperature changes, such as when a hot windshield is suddenly exposed to cold air.
They often appear as long, straight lines and can happen anywhere on the glass. Since they don't stem from a specific point of impact, stress cracks can be more unpredictable and may not be repairable, depending on their size and location.
Combination Break
A combination break has characteristics of multiple crack types due to a more severe impact. These breaks typically include elements of a bull’s eye and star break. Combination breaks are often more complicated and require professional repair due to their structure.
Combination breaks can impact your windshield’s visibility and structural integrity, so it’s important to address them quickly. Depending on how severe the break is, they may be repairable or require a windshield replacement.
Why Trust Glass Doctor With Your Windshield Crack Repair & Replacement
Cracked or chip auto glass isn't just hard to look at, it can pose a safety risk if left alone for too long. At Glass Doctor®, we offer professional windshield repair and replacement services designed to restore your vehicle's integrity and improve your visibility on the road.
With over 60 years of experience and approximately 260 locations across North America, we’re committed to providing prompt and timely service tailored to your schedule. And with our Neighborly Done Right Promise®, we ensure your satisfaction. .
To show our commitment to your auto glass, we offer a Windshield Protection Plan. This 12-month warranty protects your auto glass against normal road hazards. Some restrictions apply—see our Windshield Protection Plan page for more information.
Request an estimate or give us a call at (833) 974-0209 to schedule your windshield repair today.
This article is intended for general guidance only and is not applicable to every situation. You are responsible for determining the proper course of action for your property and situation. Glass Doctor is not responsible for any damages that occur as a result of advice and/or guidance derived from its blog content.