How To
How to Repair Minor Chips or Cracks in Windshields: A Step-by-Step Guide
A small chip or crack in your windshield might not seem like a big deal, but if left untreated, it can spread and lead to an expensive replacement. Repairing minor damage early can save time and money while keeping your visibility clear.
Many small chips can be fixed at home with a repair kit, but larger cracks may require professional service.
Note
If a crack is longer than 6 inches or a chip is deep enough to affect visibility, replacement may be the safer option. Most auto glass repair shops offer free damage assessments if you’re unsure.
What to Expect
- Time Needed: 20-30 minutes
- Difficulty: Easy to Moderate
- Average Cost: $27
Source: 2025 Fleet Benchmark Report
What You’ll Need
Windshield repair kit (available at auto parts stores)
Razor blade or safety pin (for cleaning out debris)
Glass cleaner & microfiber cloth
UV light or sunlight (for curing the resin)
How to Repair Minor Chips or Cracks in a Windshield
Step 1: Clean the Damaged Area
- Use a glass cleaner and microfiber cloth to clean the windshield surface.
- If there’s loose glass or debris in the chip, carefully remove it with a razor blade or safety pin.
Step 2: Apply the Repair Kit Adhesive
- Follow the instructions on your repair kit. Most come with a resin injector or applicator disc.
- Place the applicator directly over the chip or crack and slowly inject the resin into the damaged area.
Step 3: Allow the Resin to Set
- Once the resin is applied, cover it with a curing strip (included in most kits).
- Let it sit in direct sunlight or under a UV light for the recommended time, usually 15 to 30 minutes.
Step 4: Remove Excess Resin & Polish
- Once cured, remove the curing strip and use a razor blade to gently scrape off any excess resin.
- Buff the area with a clean microfiber cloth to restore clarity.
Avoid These Common Mistakes
- Waiting too long to repair a chip. Small chips can quickly spread into long cracks, especially in extreme weather. Fix minor damage as soon as possible to avoid a costly replacement.
- Applying resin to a dirty windshield. If dirt or moisture gets trapped under the resin, the repair won’t hold properly. Always clean and dry the area thoroughly before applying the adhesive.
- Skipping the curing step. Resin needs UV light to harden properly. If repairing indoors, use a UV lamp or move the vehicle into direct sunlight for at least 15 minutes.
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FAQs
How do I know if a windshield chip can be repaired?
Chips smaller than a quarter and cracks under 6 inches can usually be repaired. If the damage is near the driver’s line of sight or deep into the glass, replacement may be safer.
How much does it cost to repair a windshield chip?
DIY repair kits cost $10 to $25, while professional repairs range from $50 to $150. Some insurance policies cover repairs at no cost.
Will a repaired windshield chip be invisible?
Most repairs reduce visibility of the damage, but the chip may still be slightly noticeable. The main goal is to prevent further cracking and restore windshield strength.
Can I drive immediately after a windshield repair?
Yes, but avoid high-pressure car washes or extreme temperature changes for at least 24 hours to ensure the resin fully sets.
What if the crack spreads after a repair?
If the crack continues to grow, the windshield will need replacement. Many auto glass shops offer warranty-backed repairs, so check your options.
