Does a cracked windshield need to be repaired or replaced?
Key points:
- Windshield damage should be repaired or replaced promptly to help prevent cracks from spreading and creating safety concerns.
- Replacement is typically recommended for larger, deeper cracks, cracks that reach the windshield edge, or damage to tempered glass.
- Repairs generally involve applying adhesive to a clean, dry crack, though extensive or hazardous damage may require professional service.
- Repairing a windshield is usually less expensive than replacing it, and insurance coverage may help pay for eligible repairs or replacements.
Many vehicle owners can identify with the unsettling discovery of even the smallest windshield crack. The first question that comes up is – can it be repaired, or does it need to be replaced?
Windshield repairs and replacements should be done as soon as possible to help prevent them from getting worse. In certain situations, windshield damage could be covered under the comprehensive coverage on your auto insurance policy.
When should I replace my windshield?
Whether or not you should replace your windshield typically boils down to the size of your windshield, the type of glass and the size of the crack, according to Glass.com.
It’s usually a good idea to replace your windshield when:
- The glass is tempered, not laminated.
- The crack is longer than a dollar bill.
- The crack or chip is deep enough that it went more than halfway into the windshield.
- The crack or chip extends to the outside edge of the windshield.
Another great resource is your insurance company – they can likely refer you to a reputable auto glass shop.
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get a quoteHow do windshield repairs work?
Depending on the windshield damage, repairs may differ. But generally, the glass needs to be absolutely dry and around room temperature, according to Popular Mechanics. Detergents and window cleaners should be avoided. Instead, a conservative amount of lighter fluid or acetone is advised.
Windshield repairs typically involve applying an adhesive to the crack, adds Popular Mechanics. Once the adhesive is thoroughly applied, it needs to be left undisturbed for a few hours before removing the excess adhesive with an implement like a razor blade.
You can purchase repair kits online, but if damage is extensive or dangerous, call a professional, advises Bob Vila.
However you go about it, damaged windshields should be fixed as soon as possible. A small chip can spread across the windshield if you hit a big pothole, drive on a bumpy road or make an aggressive turn, says Glass.com. Many states have laws restricting windshield damage that obstructs a driver's view, and a severely cracked windshield may result in a citation or failed vehicle inspection, to the Federal Motor Carrier Safety Administration (FMCSA).