Windshield Crack Repair: Size, Type & Factors to Consider
A cracked windshield isn’t just annoying — it’s a serious safety issue. Even a small crack can weaken your glass, block your visibility, and quickly spread across your windshield. At JT Auto Glass Repair Ottawa, we help drivers understand when a crack can be repaired and when a full replacement is the safer option. Here’s everything you need to know.
1. Crack Size: What Can Be Repaired?
The size of the crack is one of the biggest factors in determining repair vs replacement.
✔️ Repairs are usually possible if:
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The crack is under 6 inches long
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The damage is not spreading quickly
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The crack is not in the driver’s direct line of sight
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It’s a small chip or bullseye crack
❌ Replacement is recommended if:
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The crack is longer than 6–8 inches
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The crack touches the edge of the windshield
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There are multiple connected cracks
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The windshield is already weakened from previous damage
Even a small crack can worsen with temperature changes, potholes, and car vibrations — so fast action is important.
2. Crack Type: Not All Damage Is the Same
Different crack types require different repair methods.
🔸 Bullseye Cracks
Circular cracks from a rock impact — easy to repair if caught early.
🔸 Star Breaks
Cracks that spread outward like a star — repairable, but spreading can begin quickly.
🔸 Combination Cracks
A bullseye with multiple lines. These can be repaired only when small.
🔸 Edge Cracks
Start near or at the edge of the windshield — usually require replacement.
🔸 Long Cracks
Anything over 6 inches. In most cases, a replacement is the safest option.
3. Where the Crack Is Located
Location matters for both safety and repair quality.
✔️ Repairable if:
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The crack is on the passenger side
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Damage is away from sensors and cameras
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It’s not blocking your vision
❌ Must be replaced if:
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The crack is in the driver’s line of sight
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It interferes with ADAS (safety camera) sensors
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It sits along the windshield’s edge
Modern vehicles rely on ADAS systems, so placement is more important than ever.
4. Weather & Temperature Can Make Cracks Worse
Ottawa’s freeze-thaw cycles are a major cause of crack spreading.
Cold causes:
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Glass to contract
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Cracks to lengthen
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Sudden spreading when defrost is used
Heat causes:
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Pressure buildup
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Weak spots to expand
If your crack grows even 1–2 inches, repair may no longer be possible.
5. Insurance Coverage for Windshield Cracks
Most Ottawa drivers don’t realize:
👉 Insurance often covers windshield crack repair at 100%
👉 No deductible
👉 No impact on your premiums
Our team can check your insurance and guide you through the claim process.
6. When to Choose Repair vs Replacement
✔️ Choose Repair When:
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Crack is small
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It’s not spreading
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It’s not in your line of sight
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It’s cost-effective
✔️ Choose Replacement When:
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The crack is long or deep
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It affects visibility
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It affects ADAS cameras
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It compromises your vehicle’s safety
At JT Auto Glass Repair Ottawa, we’ll inspect your windshield and recommend the safest, most affordable option.
Conclusion: Don’t Wait — Cracks Only Get Worse
A small windshield crack may look harmless, but Ottawa’s roads and weather can turn minor damage into a dangerous problem. Whether you need a quick crack repair or a full windshield replacement, our certified technicians are here to help.
📍 2584 Edinburgh Pl Unit #9, Ottawa, ON
📞 613-854-4527
🌐 www.jtautoglassrepair.com