
A crack in windshield growing might start as a small line, barely noticeable, but it can quickly grow into a major problem if left unchecked. Whether it expands due to temperature changes, road vibrations, or other external factors, a growing windshield crack compromises your safety and visibility. Understanding why is the crack in my windshield getting bigger and how to stop them is crucial in preventing costly replacements and ensuring a safe driving experience.
Crack in Windshield Growing
When a crack in windshield growing it’s more than just an aesthetic issue it’s a structural concern. Windshields provide critical support to your car’s frame, and a weakened windshield can put you at risk in case of an accident. Even minor cracks can spread unexpectedly, affecting your driving safety and leading to expensive repairs if not addressed promptly. Don’t wait until it’s too late! Get your windshield repaired today for a safer drive.
Why Is My Windshield Crack Getting Bigger?
Several factors can cause a crack in windshield growing, and understanding them can help you take preventive action:
- Temperature Changes – Extreme heat or cold causes the glass to expand and contract, making cracks spread faster.
- Driving Over Bumps – Hitting potholes or speed bumps can put stress on the glass, worsening the crack.
- Moisture and Dirt – Water and debris entering the crack weaken the glass and make it more prone to expansion.
- Vibrations from Driving – Regular driving vibrations add stress to the windshield, causing small cracks to lengthen.
- Pressure Changes – Sudden changes in air pressure, such as slamming a car door, can contribute to crack growth.
Signs Your Windshield Crack Is Growing
Not sure if your crack in windshield growing? Look for these signs:
- The crack is visibly longer than before.
- You hear a faint clicking or cracking sound while driving.
- The edges of the crack appear more jagged or splintered.
- The crack starts branching out in multiple directions.
- You notice a small crack turning into a larger, curved break.
If you observe any of these signs, it’s time to act fast before the damage becomes unrepairable.

Can You Stop a Crack from Growing on a Windshield?
Yes, but you need to take immediate action. While some windshield cracks can be repaired, others may require a full replacement. The key is to prevent further crack in windshield growing and spreading before they become a safety hazard. See the difference! Check out our Windshield Chip Repair Before and After gallery to witness the transformation. Schedule your repair today for a clearer view!
How to Stop a Crack in Windshield from Growing
If you notice a crack in windshield growing in your car, take the following steps:
- Apply Clear Nail Polish or Super Glue – A temporary fix, applying a thin layer over the crack can help slow its spread.
- Use a Windshield Repair Kit – Available at auto stores, these kits contain a resin that fills small cracks and prevents them from expanding.
- Avoid Sudden Temperature Changes – Don’t blast hot air on a cold windshield or pour cold water on a hot one. Sudden shifts in temperature make cracks worse.
- Drive Cautiously – Avoid rough roads, high speeds, and sudden impacts that could increase the stress on the windshield.
- Cover the Crack with Tape – A temporary solution, clear tape helps keep dirt and moisture out until you can get a repair.
Need to tape up a broken car window? Visit TLC Auto Glass for step-by-step guidance and ensure your vehicle is protected until repairs can be made!
What Not to Do When You Have a Cracked Windshield
Some actions can make a crack in windshield growing and become worse leading to costly replacements. Avoid the following:
1. Ignoring the Crack
A small crack can spread quickly if not addressed and this will lead to higher car window repair cost.
2. Using DIY Fixes on Large Cracksp
Home remedies may work for small chips, but larger cracks need professional attention.
3. Applying Excessive Pressure
Pressing on the windshield or slamming doors can cause further damage.
4. Exposing It to Extreme Weather
Parking in direct sunlight or freezing conditions can accelerate crack growth.
When to Seek Professional Help for a Growing Windshield Crack
If your crack is longer than a few inches or expanding rapidly, professional 24-hour auto glass repair is your best option. Contact a specialist if:
- The crack extends to the edges of the windshield.
- The damage obstructs your view while driving.
- You notice multiple cracks forming.
- The crack continues growing despite DIY fixes.
A windshield technician can determine if a repair is possible or if a replacement is necessary.

How Weather Conditions Affect Windshield Crack Growth
Weather plays a significant role in how fast a crack in windshield growing:
- Hot Weather – Heat causes the glass to expand, putting more pressure on the crack.
- Cold Weather – Cold temperatures make the glass contract, making cracks more brittle and likely to spread.
- Humidity and Rain – Moisture seeps into cracks, weakening the glass and accelerating damage.
Parking in a shaded area or garage can help minimize weather-related crack expansion it’s important to know what causes hairline crack in windshield.
How Do I Know If My Windshield Crack Is Repairable?
Not all windshield cracks require replacement. Here’s how to tell if yours can be repaired:
The crack is smaller than a dollar bill
Most repair services can fix cracks up to six inches long, but anything larger may require a full windshield replacement
It’s not directly in the driver’s line of sight
Repairs can leave minor distortions, which could interfere with visibility and make driving unsafe if the crack is in a critical viewing area.
The edges of the crack are smooth, not splintered
Jagged or spiderweb-like cracks indicate deeper structural damage, making repairs less effective and replacement a safer option.
The crack hasn’t penetrated through multiple layers of glass
Windshields are made of laminated glass, and if the inner layer is damaged, a repair may not fully restore its strength, requiring a replacement instead.
If the crack is large, or crack in windshield growing and spreading rapidly, or obstructing visibility, replacement is the safer choice you should know the costs of all repair types including windshield leak repair cost to be able to take the right action at the right time.
How Dangerous Is a Cracked Windshield?
A crack in windshield growing weakens your vehicle’s structural integrity, especially in case of an accident. Potential risks include:
- Reduced Airbag Effectiveness – A weak windshield may fail to support airbag deployment.
- Increased Risk of Shattering – A growing crack can cause the windshield to break unexpectedly.
- Decreased Visibility – Cracks distort your view, increasing accident risk.
Don’t take chances if a crack in my windshield is growing, get it checked as soon as possible if your budget is modest you can search for free windshield crack repair.

Is It Safe to Drive with a Growing Crack on the Windshield?
Driving with a cracked windshield is not recommended. While small cracks may not pose an immediate danger, a crack in windshield growing can cause the following::
Obstruct your vision
As the crack expands, it can create glare, distortions, or blind spots, making it harder to see the road clearly and react to potential hazards.
Increase the risk of complete windshield failure
A growing crack weakens the structural integrity of the windshield, making it more likely to shatter upon impact or under pressure from road vibrations and weather changes.
This leads to fines or violations in certain states
Many states have laws against driving with a damaged windshield, especially if the crack is in the driver’s line of sight, which could result in fines or a failed vehicle inspection.
If the windshield cracks get bigger, schedule a repair or replacement immediately.
How Long Can I Drive with a Cracked Windshield?
In the worst conditions, you may only be able to drive safely for a few days to a couple of weeks before the crack compromises visibility and structural integrity. The length of time you can safely drive with a cracked windshield depends on:
The size and location of the crack.
A small crack at the edge of the windshield may take longer to spread than a large crack in the driver’s line of sight, which can quickly compromise visibility.
Weather conditions affect its growth.
Temperature fluctuations, humidity, and road vibrations can cause crack in windshield growing the make the crack expand more rapidly, making it unpredictable and potentially hazardous.
Your local traffic laws regarding windshield damage.
Some states have strict regulations that require immediate repair or replacement if the crack obstructs the driver’s view, while others allow minor cracks as long as they don’t compromise safety.
For safety reasons, it’s best to get the crack repaired as soon as possible if crack in windshield keeps spreading.
Schedule Windshield Repair or Replacement with TLC Auto Glass
At TLC Auto Glass, we specialize in fast, professional windshield repairs and replacements. Our expert technicians use industry-leading techniques to:
- Repair minor cracks before they worsen.
- Offer affordable, high-quality replacements.
- Ensure safety and compliance with local regulations.
Don’t wait until the crack in windshield growing while driving and becomes a bigger problem. Contact TLC Auto Glass today to schedule your windshield repair!

Conclusion
A crack in windshield growing fast isn’t something to ignore. Whether caused by weather, vibrations, or other external factors, a small crack can quickly escalate into a major issue. By taking preventive steps, avoiding common mistakes, and seeking professional help when necessary, you can ensure a safe driving experience. Act fast, and don’t let a small crack turn into an expensive repair!