Reliable Auto Glass

Ultimate Guide About How to Fix a Windshield Crack

Your windshield is a crucial safety component of your vehicle, and when it develops a crack, it’s essential to address it promptly. This comprehensive guide will walk you through the process of fixing a windshield crack like a professional. With Reliable Auto Glass expert tips and techniques, you can restore the structural integrity of your windshield and ensure clear visibility while driving.

How to Fix a Windshield Crack

Understanding Windshield Cracks

Before diving into the repair process, it’s important to understand the different types of windshield cracks, such as bullseye, star, and combination cracks. Each type requires specific repair methods, and recognizing the characteristics of the crack will help you determine the most appropriate approach.

Tools and Materials Needed

To fix a windshield crack, you’ll need a few essential tools and materials. This section tells the items required for a successful repair, including a windshield repair kit, bridge injector, resin, curing film, and polishing materials. Reliable Auto Glass recommends using high-quality products for optimal results.

Common Mistakes to Avoid

While fixing a windshield crack is manageable, it’s crucial to be aware of common mistakes that can compromise the repair process. Learn about these mistakes, such as neglecting small cracks, using incorrect techniques, or skipping essential preparation steps, and understand how to avoid them for a successful repair.

When to Seek Professional Help

While DIY repairs are possible, there are instances when professional assistance is recommended. This section outlines scenarios where seeking the expertise of Reliable Auto Glass or other windshield repair professionals is the best course of action. Promptly addressing severe cracks, complex damage, or lack of confidence in your repair skills ensures your safety on the road.

Benefits of Windshield Crack Repair

  • Prevents Further Damage: Addressing windshield cracks promptly can prevent them from spreading and becoming larger. Small cracks can quickly turn into extensive damage, requiring a full windshield replacement. By repairing the crack early on, you can avoid the need for more extensive and costly repairs.
  • Maintains Structural Integrity: Your windshield plays a crucial role in the structural integrity of your vehicle. Even a small crack can compromise the overall strength of the windshield, potentially affecting the structural integrity of your car. By repairing the crack, you restore the windshield’s strength and ensure it can effectively protect you in case of an accident.
  • Avoids Visibility Issues: Windshield cracks can obstruct your view while driving, especially if they are in the line of sight. Repairing the crack ensures optimal visibility, allowing you to see clearly and react quickly to road conditions, traffic, and potential hazards. Clear visibility is essential for safe driving.
  • Saves Money on Costly Replacements: Repairing a windshield crack is typically more affordable than replacing the entire windshield. By addressing the crack promptly, you can save money on a costly windshield replacement. Repairing the crack also helps preserve the original factory seal and integrity of the windshield, avoiding the need for additional repairs or replacements in the future.
  • Enhances Safety: A properly repaired windshield provides enhanced safety for both the driver and passengers. It helps maintain the structural integrity of the vehicle, prevents the risk of the windshield collapsing in case of an accident, and ensures the effectiveness of airbag deployment. By prioritizing windshield crack repair, you prioritize the safety of everyone in the vehicle.
  • Quick and Convenient: Most windshield crack repairs can be completed within a short amount of time, often in less than an hour. This means minimal disruption to your day and the convenience of getting your windshield back in optimal condition quickly.
  • Eco-Friendly Choice: Repairing a windshield crack is an environmentally friendly option. It reduces the need for manufacturing new windshields, which saves energy and reduces waste. By opting for repair instead of replacement, you contribute to a more sustainable approach to automotive maintenance.

Step-by-Step Guide | How to Fix a Windshield Crack

Step 1: Gather the necessary materials

  • Windshield repair kit (including bridge injector, resin, curing film, and other tools)
  • Cleaning supplies (glass cleaner, lint-free cloth)
  • Safety equipment (protective gloves, safety glasses)

Step 2: Assess the crack

  • Determine the size, type, and location of the crack. Assess if it is repairable based on the guidelines provided by the repair kit manufacturer.

Step 3: Prepare the crack

  • Clean the cracked area using glass cleaner and a lint-free cloth to remove any dirt, debris, or moisture. Ensure the area is completely dry before proceeding.

Step 4: Set up the bridge injector

  • Follow the instructions provided with your windshield repair kit to assemble and position the bridge injector over the crack. Secure it firmly to create a seal.

Step 5: Inject the resin

  • Attach the resin chamber to the bridge injector and fill it with the windshield repair resin according to the kit instructions. Slowly inject the resin into the crack using the provided plunger or syringe.

Step 6: Apply pressure and release air bubbles

  • Gently tap the crack with a small tool or use the pressure applicator provided in the kit to ensure the resin fills the entire crack and displaces any trapped air bubbles.

Step 7: Cure the resin

  • Place a curing film or strip over the repaired area to protect the resin. Follow the manufacturer’s instructions regarding curing time and the use of UV light or sunlight for the curing process.

Step 8: Polish the repaired area

  • After the resin has cured, remove the curing film and clean the repaired area with glass cleaner and a lint-free cloth. Use a windshield polish or cleaner to restore clarity and shine to the repaired spot.

Step 9: Evaluate the repair

  • Inspect the repaired area to ensure the crack is filled and the resin has hardened properly. Check for any remaining imperfections or signs of further damage.

Step 10: Test the windshield

  • Test the windshield for stability and visibility by gently tapping around the repaired area. Ensure there are no loose or weak spots.

Please note: The effectiveness of the repair may vary depending on the size, type, and severity of the crack. It is recommended to follow the specific instructions provided with your windshield repair kit for the best results.


Fixing a windshield crack doesn’t have to be a daunting task. With the guidance provided by Reliable Auto Glass in this blog post, you can confidently repair your windshield and restore its strength and clarity. Remember, prompt action and attention to detail are key to a successful repair. Safeguard your windshield and enjoy the road ahead with Reliable Auto Glass’s trusted repair solutions.

For professional windshield crack repair and reliable auto glass services, trust Reliable Auto Glass. Contact us through our experts today to schedule an appointment or learn more about our top-quality services. Ensure the safety and longevity of your windshield with the help of Reliable Auto Glass.


Q: Can I fix a windshield crack myself?

Yes, minor windshield cracks can often be repaired using DIY methods. However, it’s important to assess the severity and type of crack. If it’s a large or complex crack, or if you lack experience in windshield repair, it’s best to seek professional help.

Q: What tools do I need to fix a windshield crack?

To repair a windshield crack, you’ll need a windshield repair kit, bridge injector, resin, curing film, polishing materials, and cleaning supplies. These tools can be found in automotive stores or online, and some kits may include all the necessary items.

Q: How long does it take to fix a windshield crack?

The time required to fix a windshield crack depends on the size, type, and complexity of the crack, as well as the chosen repair method. In general, DIY repairs can take anywhere from 30 minutes to a few hours, including preparation and curing time.

Q: Will the repaired windshield crack be invisible?

While windshield crack repair can significantly improve the appearance and structural integrity of the glass, it’s unlikely to make the crack completely invisible. The primary goal is to prevent the crack from spreading and compromising the windshield’s strength.

Q: Can I still drive my car with a repaired windshield crack?

In most cases, it’s safe to drive your car after a windshield crack has been repaired. However, it’s essential to follow the curing time recommended by the repair kit manufacturer to ensure the resin has fully hardened. Consult the instructions or ask a professional for specific guidance.

Q: What if the crack reappears after I’ve repaired it?

If the crack reappears or continues to spread after attempting a DIY repair, it’s best to consult a professional windshield repair service. They have the expertise to assess the damage and recommend appropriate solutions, which may include a complete windshield replacement if necessary.

Q: Will my insurance cover the cost of windshield crack repair?

Many insurance policies cover windshield repairs, either partially or in full, depending on the coverage you have. Contact your insurance provider to inquire about your policy’s coverage for windshield repairs and any applicable deductibles.

Q: How long will a repaired windshield crack last?

A properly repaired windshield crack can last for a long time. However, the durability of the repair depends on various factors such as the size, location, and type of crack, as well as the quality of the repair materials and technique used.

Q: Can I wash my car or expose the repaired windshield to rain after the repair?

It’s generally recommended to avoid washing your car or exposing the repaired windshield to excessive moisture for at least 24-48 hours after the repair. Follow the specific guidelines provided by the repair kit manufacturer or consult a professional for the best advice.

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