Not all windshield damage looks or behaves the same. A small bullseye from a rock impact may be repairable, while a long crack or damage near an edge may require replacement. Knowing the basic types of windshield damage can help you decide how quickly to schedule an inspection.
Duran's Auto Glass has served Bay Area drivers since 1994 with fast and friendly mobile windshield service. We are licensed and insured and offer free estimates for auto glass repair and replacement.
A chip is usually a small impact point where a stone or road debris strikes the glass. A crack is a line that extends away from an impact or forms because of stress in the glass.
Both can spread. The chance of repair depends on size, location, depth, contamination, and whether multiple layers of laminated glass are affected.
| Damage Type | Typical Appearance | Repair Outlook |
|---|---|---|
| Bullseye | Round impact with dark center | Often repairable when small |
| Star break | Impact with radiating legs | Depends on size and leg length |
| Combination break | Multiple chip patterns together | More complex to repair |
| Short crack | Thin line extending from impact | Depends on length and location |
| Edge crack | Crack beginning near windshield perimeter | Often more concerning |
| Long crack | Extended line across glass | Replacement often considered |
A bullseye has a circular appearance around the impact point. When it is small, clean, and away from critical areas, it may be a good repair candidate.
A star break has several small cracks radiating from the center. Those legs can continue growing, so early evaluation matters.
A combination break includes features of more than one chip type, such as a bullseye with star-shaped cracks. The larger and more complex the damaged area becomes, the harder it may be to restore the windshield effectively.
See our windshield chip repair guide for more information.
The perimeter of the windshield is a highly stressed area because it is bonded to the vehicle body. Damage close to the edge may spread more readily and may affect whether a repair is recommended.
A crack that begins near the molding should be inspected promptly even if it is not yet very long.
There is no single rule that applies to every windshield. Replacement is more likely when damage is too large, too deep, badly contaminated, directly in a critical viewing area, close to an edge, or involves multiple complex cracks.
Expert Tip: Put a small piece of clear tape over a fresh chip until it can be inspected. It can help keep dirt and moisture out without hiding the damage from the technician.
Temperature changes, body flex, potholes, door slams, vibration, and continued driving can all place stress on damaged glass. Once a crack begins moving, predicting exactly when it will stop is difficult.
Learn more about why windshield cracks spread.
DIY kits may look inexpensive, but incorrect drilling or resin application can make professional repair harder. If visibility or safety is a concern, professional evaluation is the better next step.
California requires vehicles to have an adequate windshield, and glass damage that impairs the driver's vision can create a legal and safety problem. Even if a chip seems small, location matters.
Do not delay service if damage interferes with your view of traffic, signs, pedestrians, or the road.
Comprehensive auto coverage may help with glass repair or replacement depending on your policy, deductible, and cause of damage. Some insurers handle chip repair differently from full replacement.
Contact your insurer for exact coverage terms before assuming the repair will be free or fully covered.
Mobile service lets you have a chip evaluated at a convenient location without adding another shop visit. If the damage is repairable, acting early can help prevent contamination and additional spreading.
Review our mobile windshield services for available options.
A bullseye, star break, short crack, and edge crack do not carry the same repair outlook. The sooner you know what type of damage you have, the easier it is to choose the right next step.
Request a free auto glass estimate from Duran's Auto Glass for fast, friendly service backed by Bay Area experience since 1994.
No. Repairability depends on size, depth, location, contamination, and whether the chip has already developed longer cracks.
Neither is automatically worse. A star break may have more crack legs, while a bullseye can still be too large or deep to repair.
Yes. Temperature changes, vehicle movement, and existing stress can cause a crack to grow without another impact.
Damage that interferes with visibility should be addressed promptly because it can affect both safety and legal vehicle requirements.
Yes. Duran's Auto Glass offers mobile auto glass service throughout San Mateo and the San Francisco Bay Area.
