What you can do about a windshield chip right now

A windshield chip is a small break in the glass, usually caused by road debris or temperature changes. The good news: if the chip is smaller than a dollar bill and hasn't cracked outward, you can often stop it from spreading with a repair kit you buy at an auto parts store. The chip won't disappear, but a resin filler can seal it so moisture and dirt don't get inside and make it worse.

If the chip is larger, has cracks radiating from it, or is in your direct line of sight when you're driving, you'll need a professional repair or replacement instead. The longer you wait, the more likely temperature swings and road vibration will turn a chip into a crack that spans the whole windshield.

Key Takeaways

  • Windshield chip repair kits cost $10 to $30 and work best on chips smaller than a quarter that haven't cracked outward.
  • The repair process takes about 30 minutes and involves cleaning the chip, injecting resin, and letting it cure for a few hours.
  • If the chip is large, has visible cracks, or blocks your view, a professional replacement is safer and often covered by insurance.
  • Temperature changes and road bumps make chips spread quickly, so addressing one within a few days of noticing it gives you more options.

Choosing between a DIY repair kit and professional service

A DIY repair kit works if the chip meets three conditions: it's smaller than a quarter, there are no cracks spreading from it, and it's not directly in your line of sight while driving. Kits from brands like Permatex or Safelite come with a resin compound, an applicator, and instructions. You can find them at auto parts stores like AutoZone, O'Reilly, or Advance Auto Parts, or online. The cost is usually $10 to $30.

A professional repair is the better choice if the chip is larger than a quarter, has cracks radiating outward, is in the center of the windshield where you look while driving, or if the chip is near the edge of the glass. A glass shop or dealership can inject resin under pressure, which seals the chip more completely than a kit. This typically costs $50 to $150 and takes an hour or two. Many insurance policies cover windshield repair with little or no out-of-pocket cost — check your policy or call your insurer before you pay.

If the chip has already spread into a crack longer than a few inches, or if the windshield has multiple damage spots, replacement is usually the only option. A new windshield costs $200 to $500 depending on your vehicle, and most insurance plans cover it fully or with a small deductible.

Steps to repair a chip with a DIY kit

Start by cleaning the chip thoroughly. Use a small brush or compressed air to remove dirt, dust, and any loose glass fragments from inside the chip. Then wipe the area around it with rubbing alcohol and let it dry completely — moisture inside the chip will prevent the resin from bonding.

Open your repair kit and follow the instructions, which vary slightly by brand. Most kits ask you to insert the applicator into the resin bottle, then press it firmly into the chip to inject the resin. You may need to hold it in place for a minute or two. Some kits include a curing strip that you press over the chip to smooth the resin level with the glass surface.

After injection, the resin needs time to cure. Most kits require 24 hours before you drive the car, though some claim to be ready in 3 to 4 hours. Check your kit's instructions and follow the timing exactly — driving before the resin has fully hardened can weaken the repair. Once cured, the chip will be sealed and much less likely to spread, though you may still see a slight mark in the glass.

When a chip becomes a safety problem

A chip in your direct line of sight — roughly the size of a hand in the center of the windshield — is a safety issue even if it's small. It can distract you while driving and may be illegal depending on your state's vehicle code. If the chip is in this zone, don't use a DIY kit; go to a professional or replace the windshield.

Chips near the edge of the windshield are also risky because the glass is thinner there and more prone to cracking under pressure. A professional should assess these before you attempt a repair kit.

Why chips spread and how to slow it down

Windshield chips spread because of temperature changes and vibration. When the sun heats the glass or cold air cools it, the glass expands and contracts slightly. If there's a break in the surface, that movement stresses the edges of the chip and can cause cracks to radiate outward. Bumps in the road and slamming doors add vibration that speeds this process.

To slow a chip's spread before you repair it, avoid sudden temperature changes — don't blast the air conditioning on a hot day or pour hot water on a cold windshield. Drive smoothly and avoid potholes when possible. Park in shade if you can. These steps won't stop a chip from eventually spreading, but they buy you time to get it repaired.

Insurance and windshield repair coverage

Most comprehensive auto insurance policies cover windshield damage, including chips and cracks. Coverage usually falls into two categories: full coverage with a deductible (often $0 to $500), or a separate glass deductible that may be lower than your regular deductible. Some policies cover glass repair at no cost if you use an in-network glass shop.

Before you pay for a repair out of pocket, call your insurance company or check your policy documents to see what's covered. If you have coverage, the insurer may direct you to a specific repair shop or may reimburse you after you pay. Many glass shops can bill your insurance directly, so you only pay your deductible if one applies.

Frequently Asked Questions

Can I drive with a windshield chip?

Yes, if the chip is small and not in your direct line of sight. However, the longer you drive with it, the more likely it is to spread into a crack. If the chip is in the center of the windshield or is large, it's safer to have it repaired or replaced before driving.

Will a DIY repair kit make the chip invisible?

No. A repair kit seals the chip so it stops spreading, but you'll still see a mark in the glass. Professional repairs are more thorough and may be less visible, but they also won't make the chip completely disappear. Replacement is the only way to remove it entirely.

How long does a windshield repair last?

A properly done repair — whether DIY or professional — can last the life of the windshield if the chip doesn't spread before repair. However, if the chip has already cracked outward, the repair may fail over time. This is why addressing a chip quickly matters.

What's the difference between a chip and a crack?

A chip is a small break in the glass surface, usually round or star-shaped, with no lines spreading from it. A crack is a line that runs across the glass, often starting from a chip. Chips can be repaired; cracks usually require replacement.