When can a cracked windscreen be repaired instead of replaced?

A cracked windscreen can usually be repaired when the crack is small (typically less than about 30 mm), not directly in the driver’s line of sight, and the damage has not spread deeply into the glass layers.

What determines whether a windscreen crack should be replaced?

Replacement is necessary when the crack is larger, deeper, located in the critical vision area, near the edges of the glass, or when structural integrity is compromised. Safety regulations may also require replacements in such cases.

How small does a crack need to be to qualify for repair?

Typically, surface cracks or chips smaller than about 30 mm (about the size of a 20-cent coin) are considered repairable, provided they do not affect safety or structural strength.

Will repairing a windscreen crack restore the glass to original strength?

Professional windscreen repair can restore much of the original strength for small cracks, but it does not fully replicate the structural integrity of a new windscreen like a replacement would.

Does repairing a cracked windscreen affect my visibility while driving?

After professional repair, visibility should be restored and any surface imperfections reduced. However, faint marks may remain, but they should not significantly interfere with safe driving.

Does insurance cover windscreen crack repair?

Most comprehensive car insurance policies with windscreen coverage include crack repair without affecting your No Claim Discount (NCD), provided the claim is solely for the windscreen repair.

Will insurance cover windscreen replacement if repair is not possible?

If repair is not possible and the windscreen must be replaced, your windscreen coverage can help cover the cost. Depending on your policy, there may be an excess or limit on the amount paid.

Are there legal or safety standards that affect whether a crack can be repaired?

Yes, legal and safety standards in many regions specify unacceptable levels of damage, especially in the driver's line of sight, which require windscreen replacement rather than repair.

Does the location of the crack affect whether it can be repaired?

Yes, cracks located in the central vision area or near the edges of the windscreen often require replacement because they can compromise structural integrity or obstruct the driver’s view.

Can small cracks spread if left unrepaired?

Yes, temperature changes, vibration from road use, and pressure changes can cause small cracks to spread over time, eventually necessitating a full windscreen replacement.

How long does a professional windscreen crack repair take?

Professional windscreen crack repair typically takes about 30 minutes to 1 hour, depending on the complexity and size of the crack.

Should I consider windscreen replacement if my vehicle has ADAS features?

If your vehicle has Advanced Driver Assistance Systems (ADAS), replacement should include proper calibration of sensors and cameras after installation, which may increase cost and service time.

Windscreen Crack Repair: When Can a Cracked Windscreen Be Fixed?

Best Auto Windscreen Puchong
15 Dis 2025
2 min membaca

A cracked windscreen is one of the most common problems drivers face on Malaysian roads. From flying stones to sudden temperature changes, cracks can appear when you least expect them.The key question most drivers ask is simple: Can this crack be repaired, or does it need full replacement?

This guide explains when windscreen crack repair is possible—and when replacement is the safer option.

Types of Windscreen Cracks That Can Be Repaired

Not all cracks mean you need a new windscreen. In certain situations, professional repair can restore the strength of the glass.

Small Surface Cracks

Short cracks that are still shallow and limited to the outer layer of the laminated glass may be repairable.

Cracks That Are Not Spreading

If the crack remains stable and does not grow over time, repair may still be an option.

Cracks Outside the Driver’s Line of Vision

Repairs can leave a slight visual mark. For this reason, cracks outside the driver’s critical vision area are more suitable for windscreen crack repair.

When Windscreen Crack Repair Is Not Recommended

In some cases, repairing a crack may compromise safety.

Long or Spreading Cracks

Cracks longer than 30cm or cracks that continue to grow weaken the structural integrity of the windscreen.

Cracks Near the Edges

Edge cracks are more likely to spread due to vehicle vibrations and should be replaced instead of repaired.

Deep Cracks Reaching the Inner Layer

If both layers of laminated glass are affected, repair is no longer safe.

Is It Safe to Drive With a Cracked Windscreen?

Driving with a cracked windscreen can be risky. The windscreen supports the vehicle’s structure and plays a critical role in airbag deployment. Even a small crack can worsen suddenly, especially under heat or impact.

A professional inspection is always recommended to determine whether windscreen crack repair or replacement is required.

Windscreen Crack Repair vs Replacement — Which Should You Choose?

The decision depends on:

Crack size
Crack location
Crack depth
Overall glass condition

When safety is uncertain, replacement is the safer long-term solution.

Get Professional Windscreen Inspection in Puchong

If you’re unsure whether your cracked windscreen can be repaired, visit Best Auto Windscreen Puchong for a professional assessment.Our technicians will advise whether windscreen crack repair is possible—or if replacement is necessary for your safety. 📞 WhatsApp: 016-868 2788

📍 Best Auto Windscreen Specialist, Puchong Kinrara 3

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