When your windshield is damaged beyond repair, replacement becomes the only safe option. But one of the most common questions we hear from customers is: "How long does a windshield replacement really take?" Whether you're trying to squeeze it in during lunch or planning your weekend around it, knowing what to expect can make the process much smoother.

At Long Horn Auto Glass, we specialize in auto glass repair and windshield replacement services throughout San Antonio. Here’s a step-by-step breakdown to help you understand the full process and how long each stage usually takes.

Step 1: Initial Assessment (10–15 Minutes)

Before we begin, our technician will assess the extent of the damage. Sometimes what looks like a major crack can be fixed with a quick windshield repair, saving you time and money. But if the damage is extensive or directly in the driver’s line of sight, a full replacement is usually recommended.

Want to know if your glass can be repaired instead of replaced? Read our blog on The Importance of Prompt Windshield Repairs: Avoiding Costly Replacements.

Step 2: Removing the Old Windshield (30–45 Minutes)

Once we've confirmed that a replacement is necessary, we begin by carefully removing the old windshield. This step includes:

Removing any trim or molding
Cutting away the old adhesive
Lifting the damaged windshield safely

We take extra care during this stage to avoid scratching the paint or damaging the interior, which could lead to auto window repair issues later on.

Step 3: Preparing the Surface (15–20 Minutes)

Before we install the new glass, we thoroughly clean and prep the area. This includes:

Removing debris or leftover adhesive
Applying a new primer
Ensuring a clean bonding surface for maximum durability

This step is crucial in ensuring that the new glass seals properly—especially in a climate like San Antonio’s, where fluctuating temperatures and humidity can affect bonding. Check out The Impact of San Antonio Weather on Windshields and How to Protect Yours for more on this.

Step 4: Installing the New Windshield (30–45 Minutes)

We then fit your new windshield into place using top-grade adhesive. The type of auto glass we use matters—a lot. Not all glass is made equal, and using poor-quality material can compromise your safety. Read more in The Hidden Dangers of Low-Quality Auto Glass Replacements.

Our team specializes in both in-shop and mobile windshield repair, giving you the flexibility to choose what works best. Learn more about the pros and cons in Which is Better: Mobile Windshield Repair or In-Shop?.

Step 5: Curing and Safety Checks (60 Minutes)

After the windshield is installed, we allow time for the adhesive to cure. During this period:

You should avoid driving the car (at least for an hour)
We double-check for leaks, gaps, or alignment issues
Sensors and ADAS features are recalibrated if necessary

This final step ensures the structural integrity of the vehicle and passenger safety. If your vehicle has advanced features, check out ADAS & Windshield Replacement: Why Calibration Matters to learn more.

Total Time Estimate

On average, a windshield replacement takes between 1.5 to 2.5 hours from start to finish. With Long Horn Auto Glass, we aim to make the process as quick and seamless as possible—without compromising safety or quality.

Why Trust Long Horn Auto Glass in San Antonio?

We’ve built our reputation by offering reliable, fast, and affordable services for:

From daily commuters to off-roaders, we’ve helped thousands of drivers across San Antonio stay safe behind the wheel. For tips on picking the right provider, check out How to Choose the Right Auto Glass Service Provider in San Antonio.

Final Thoughts

Getting your auto window replaced doesn’t have to be a day-long affair. With expert help from Long Horn Auto Glass, you’ll be back on the road in no time. From chip repair to full auto glass replacement, we do it all—on-site, in-shop, and on your schedule.

Want more helpful insights? Explore these customer favorites:

Ready to book your service? Contact us today for fast, professional, and affordable auto glass repair in San Antonio.

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How Long Does a Windshield Replacement Really Take? A Step-by-Step Breakdown