How Big Can A Windshield Crack Be To Be Repaired

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Windshield Crack Repair Guide

How Big Can a Windshield Crack Be to Be Repaired?

I distinctly remember the moment a speeding car kicked up a pebble that rocketed towards my windshield, leaving a small but noticeable crack in its wake. Panic set in as I envisioned the hefty cost of a replacement.

After some research, I discovered that not all windshield cracks are created equal. Some can be repaired, while others require a full replacement. The size and location of the crack play a crucial role in determining the best course of action.

Crack Size and Repair Eligibility

Minor Cracks

Cracks less than six inches in length are generally considered repairable. These cracks are often caused by small impacts, such as pebbles or debris. Surface cracks, which only affect the outermost layer of the windshield, can also be repaired.

Major Cracks

Cracks larger than six inches typically cannot be repaired. These cracks are often caused by more significant impacts, such as collisions or vandalism. They may also extend into the inner layers of the windshield, compromising its structural integrity.

Location of the Crack

The location of the crack is another crucial factor to consider. Cracks located in the driver’s line of sight are more likely to require replacement. This is because they can obstruct vision and pose a safety hazard.

Cracks located in the passenger side or corners of the windshield may be repairable, depending on their size. However, even if these cracks can be repaired, they may still affect the vehicle’s resale value.

Expert Advice for Windshield Crack Repair

If you have a windshield crack, it’s essential to have it inspected by a professional as soon as possible. An experienced auto glass technician can assess the crack and determine whether it can be repaired or must be replaced.

If the crack is repairable, the technician will use a specialised resin to seal the crack and prevent it from spreading. This process is typically quick and affordable, taking only about 30 minutes to complete.

Tips for Preventing Windshield Cracks:

  • Maintain a safe following distance to avoid debris from other vehicles.
  • Park in covered areas or under trees to protect your windshield from hail and falling objects.
  • Use a windshield protector when driving in areas prone to flying debris.

Frequently Asked Questions about Windshield Repair

Can I repair a windshield crack myself?
While there are DIY windshield crack repair kits available, it’s highly recommended to have it done by a professional. Improper repair can weaken the windshield and make it more susceptible to further damage.
How long does a windshield crack repair last?
A properly repaired windshield crack can last as long as the windshield itself. However, it’s important to avoid extreme temperature fluctuations and excessive pressure on the repaired area.
Will a windshield crack repair affect the safety of my vehicle?
A properly repaired windshield crack will not affect your vehicle’s safety. The resin used in the repair process restores the windshield’s structural integrity.


Determining the repairability of a windshield crack depends on its size and location. Cracks less than six inches in length and not located in the driver’s line of sight can often be repaired. However, larger cracks or cracks in critical areas may require replacement.

If you’re uncertain about the extent of the damage, it’s always best to have your windshield inspected by a professional. Remember, a timely repair can prevent a small crack from turning into a costly replacement.

Are you interested in learning more about windshield crack repair? Share your questions or experiences in the comments below!

Windshield Crack Repair Guide

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