A broken windshield rarely picks a convenient time to happen. One minute you're driving to work, the next you're staring at a crack spreading across your line of sight, trying to figure out what to do next. (If that's happening to you right now, mid-drive, our guide on handling a windshield that breaks while you're driving covers what to do in that exact moment.) This guide is for the step after that: once the immediate shock has worn off and you're ready to actually get it fixed. Fixing a broken windshield usually comes down to three decisions: repair or replace, mobile or in-shop, and who does the work. Here's how to think through each one.

Repair or Replace: How to Tell
Not every crack means a full windshield replacement. The damage itself tells you which direction you're headed:
- Small chips and short cracks: If they are generally smaller than a dollar bill and away from the edge of the glass, small damage can often be repaired with a resin injection that restores the glass's strength and stops the crack from spreading.
- Long cracks, edge damage, or anything in your direct line of sight usually calls for a full replacement. Cracks that reach the edge compromise the structural integrity of the windshield, and damage in your sightline can't be repaired without leaving distortion behind.
- Multiple chips or cracks, even small ones, often push a windshield past the point where repair makes sense.

At Advance Auto Glass, this is the first thing our technicians assess, whether that's in person or from photos you send us. We'd rather tell you a repair is enough and save you money than sell you a replacement you don't need, and if replacement really is the safer call, we'll explain exactly why. If you want the fuller breakdown of warning signs, we've laid those out in 5 Signs That Tell You When to Replace Your Windshield.
What Actually Happens During the Fix
A repair is the quicker of the two. A technician cleans out the damaged area, injects a clear resin into the chip or crack, and cures it to restore strength and clarity. Most repairs are done in well under an hour, with no wait time needed before you drive.
A replacement takes more steps. The damaged windshield is removed, the frame is cleaned and prepped, a new windshield is set in place with automotive-grade adhesive, and any camera or sensor systems tied to the windshield are recalibrated before you're cleared to drive. That last step matters more than most drivers realize: if your car has lane-assist, automatic braking, or a similar safety feature, the calibration is part of the job, not an optional add-on.

How Long Will It Take?
Short answer: a repair is usually done in well under an hour, and most replacements are complete same-day, with a short cure time before you're cleared to drive.
Timing varies with your vehicle and the adhesive used, so if you want the full breakdown, we've covered that in detail in our piece on same-day windshield replacement and how our adhesive affects cure and drive-away time.

Mobile or In-Shop: Whichever Fits Your Day
You don't have to build your whole day around a broken windshield. If you carry comprehensive coverage or just want the most convenient option, mobile service means a technician comes to you wherever your car happens to be, and does the repair or replacement on-site. If you'd rather have it done in a controlled shop environment, that's available too. Neither option changes the quality of the work; it's really about what fits your schedule.

Get a Free Quote for Your Windshield
Send us a few photos and we'll tell you whether it's a repair or a replacement, and what it will take to get you back on the road.
Get a Free Quote for Your WindshieldWhat About Insurance?
If you carry comprehensive coverage in South Carolina, you're often looking at little to no out-of-pocket cost for a windshield repair or replacement, and by state law, insurers can't require you to use a specific provider, so you're free to choose a shop you actually trust. We walk through exactly how that works, including common misconceptions, in our guide to windshield replacement costs.
Choosing Who Fixes It
This is the part that trips people up most. A rushed or poorly done repair can leave you back where you started, or worse, with a windshield that doesn't seal properly or seat correctly in the frame. When you're comparing shops, a few things are worth asking about directly:
- What adhesive and glass do they use? Cheaper materials aren't always a problem, but they're worth knowing about upfront.
- Do they handle calibration in-house, or is that outsourced and scheduled separately?
- What's covered under warranty if something isn't right after the fact?
- Will they work directly with your insurance, or are you stuck managing that yourself?

At Advance Auto Glass, we've built our reputation on giving straight answers to those questions before you commit to anything, not after. We use higher-quality materials than the bare minimum, our technicians handle calibration as part of the job, and every installation is backed by a warranty. If a windshield isn't sealed and calibrated correctly the first time, that's not a fix; it's just a delay before the same problem comes back.
A broken windshield is stressful enough without wondering whether it was actually done right. Whether you need a quick repair or a full replacement, the goal is the same: get it done once, get it done correctly, and get back to your day.
Schedule Your Windshield Repair or Replacement
Get it done once, get it done correctly, and get back to your day. We'll come to you or you can visit our shop.

