If you have a cracked windshield, you might be able to repair it instead of replacing it entirely. Repair is possible depending on the crack’s size, type, and location. This guide helps you determine if repair is the right choice.

Safety First: Always prioritize safety. If you’re unsure about any step, consult a professional. Do not attempt repairs that seem beyond your skill level.

Is Repair Possible? Evaluating the Damage

Windshield repair isn’t always the best option. Consider these factors to determine if repair is feasible:

  • Size: Cracks or chips smaller than a quarter and less than 12 inches long are generally suitable for repair. Longer cracks can compromise the windshield’s structural integrity.
  • Location: Cracks in the driver’s line of sight are best addressed with replacement due to potential distortion. Cracks near the edge are also more problematic.
  • Type:
    • Chips (Bullseye, Star, Combination): Usually very repairable if caught early.
    • Cracks (Long or Short): Repairable, but success depends on length and location.
    • Spider Cracks: More difficult to repair due to their complex branching pattern.
  • Contamination: Dirt and debris can hinder the bonding process, making repair less effective.

If the damage is extensive, replacement is the safer option.

DIY vs. Professional Repair

Consulting a qualified windshield repair technician is strongly recommended. Here’s why:

  • Experience and Expertise: Professionals can properly assess the damage and perform the repair safely.
  • Specialized Equipment: They use professional-grade resins and equipment.
  • Warranty: Many shops offer warranties on their work.
  • Proper Curing: UV light curing ensures proper resin hardening.

If you’re confident in your abilities and the damage is minor, you can attempt a DIY repair. However, understand the risks.

DIY Windshield Crack Repair Steps

Disclaimer: Performing a DIY repair is at your own risk. We are not responsible for any damage or injury resulting from attempting this procedure.

If you proceed with a DIY repair, follow these steps:

  1. Clean the Affected Area:
    • Use a clean cloth and glass cleaner.
    • Remove debris with a small pin or needle (use extreme caution!).
    • Ensure the area is completely dry.
  2. Apply the Repair Resin:
    • Follow the repair kit instructions exactly.
    • Attach the suction cup applicator and inject the resin using a syringe.
    • Ensure the resin fills the crack completely.
  3. Cure the Resin:
    • Place the curing strip over the resin.
    • Expose the area to direct sunlight or a UV lamp for the recommended time.
  4. Remove Excess Resin and Polish:
    • Remove the applicator and curing strip.
    • Use a razor blade (at a shallow angle) to scrape away excess resin.
    • Polish the area with a clean cloth.

Post-Repair Care and Maintenance

After the repair, avoid:

  • Extreme Temperature Changes: Sudden temperature fluctuations can stress the repaired area.
  • High-Pressure Car Washes: The pressure can potentially weaken the repair.
  • Slamming Doors: Minimize vibrations.
  • Using the Defroster Directly on the Repaired Area

When to Opt for Windshield Replacement

Consult a professional if:

  • The crack continues to spread.
  • The repair doesn’t improve visibility.
  • You have doubts about the windshield’s integrity.

Windshield integrity is vital for safety. When in doubt, replace the windshield.