5 Things You Should Know About A Windshield Spider Crack

Dec 6, 2018
Auto Glass Repair


Welcome to The Power Window Doctors, your trusted source for all things related to automotive glass repair and replacement. In this article, we will dive into the topic of windshield spider cracks and provide you with essential information that will help you understand and address this common issue.

What is a Windshield Spider Crack?

A windshield spider crack refers to a type of crack that resembles a spider web pattern. It usually occurs as a result of impact or stress on the windshield. Unlike a small chip or crack, a spider crack spreads across the windshield and can significantly impair your visibility and compromise the structural integrity of the glass. Identifying and dealing with spider cracks in a timely manner is crucial to ensure your safety on the road.

Causes of Windshield Spider Cracks

Spider cracks can be caused by various factors, including:

  • Temperature Changes: Extreme temperature fluctuations can cause the windshield glass to expand and contract, leading to stress cracks.
  • Impact: A hard impact from a flying object, such as a rock or debris, can create spider cracks.
  • Structural Weakness: Previous damage, such as a small chip or crack, can weaken the windshield and make it more susceptible to spider cracks.
  • Manufacturing Defects: In rare cases, manufacturing defects within the glass itself can result in spider cracks.

Assessing the Severity of Spider Cracks

Not all spider cracks require immediate windshield replacement. It's essential to assess the severity of the crack to determine the appropriate course of action. Here are a few key factors to consider:

  • Size: The size of the crack plays a significant role in determining the extent of the damage. Smaller cracks can often be repaired, while larger ones may require a full windshield replacement.
  • Location: The location of the crack is crucial as it can impact the driver's line of sight. Cracks that compromise visibility or intersect with the driver's field of vision typically necessitate windshield replacement.
  • Depth: The depth of the crack indicates the level of damage to the windshield. Deeper cracks are more likely to spread and compromise the structural stability of the glass.

Repair vs. Replacement

Depending on the severity of the spider crack, repair or replacement options may be available. It's important to consult with a professional automotive glass specialist to determine the most appropriate solution. In general, small cracks can often be repaired using advanced resins and techniques, while larger or more severe cracks may require a complete windshield replacement. Choosing the right option helps maintain the integrity and safety of your vehicle.

Preventing Windshield Spider Cracks

While accidents happen, taking preventive measures can help minimize the risk of windshield spider cracks. Here are a few tips to consider:

  • Keep a Safe Distance: Maintain a safe distance from other vehicles, especially on gravel or construction sites where flying debris is more common.
  • Inspect Your Windshield Regularly: Routinely check your windshield for any signs of damage, chips, or small cracks. Addressing them early on can prevent further spreading.
  • Drive Carefully on Uneven Roads: Slow down and navigate cautiously on bumpy or uneven roads to minimize stress on your windshield.
  • Protect Your Windshield from Extreme Temperature: Park your vehicle in shaded areas or use windshield sunshades during hot weather to reduce temperature-related stress on the glass.


In conclusion, understanding the 5 essential things about a windshield spider crack empowers you to make informed decisions about the necessary repairs or replacements. By prioritizing safety and regular maintenance, you can keep your windshield in optimal condition and ensure a clear and unobstructed view while on the road. If you require professional assistance or have any further questions, don't hesitate to reach out to The Power Window Doctors, your trusted automotive glass experts.

Faye Mullins
‚Äč"Great article! Now I know what to look for and how to take care of windshield spider cracks.
Nov 8, 2023
Sophie Davidas
Informative and helpful
Oct 18, 2023