Do Impact Windows Keep Water Out During a Storm? Here’s What You Need to Know

Impact Windows Stop Wind and Debris — But What About Water?

Here’s a common myth we hear all the time in South Florida:

“If I get impact windows, I won’t have to worry about water getting in during a storm.”

We wish it were that simple. While impact windows are an essential line of defense during hurricane season, they aren’t magic waterproof shields. They’re built to handle wind and debris — not necessarily the driving rain that sneaks in through the tiniest gaps.

So… Can Impact Windows Keep Water Out?

Yes — but only when installed and sealed properly.

The glass itself won’t leak. What causes problems is what’s around the window:

• Gaps in the caulking or stucco
• Poor or rushed installation
• Lack of flashing or sealants
• Settling or cracks in your home’s exterior

Even the best impact glass in the world can let water in if the frame isn’t sealed tight.

How Impact Windows Are REALLY Meant to Protect You

Let’s be clear:

Impact windows are designed to prevent catastrophic damage from wind and airborne debris — which can lead to roof blowouts, structural collapse, and shattered glass.

Water intrusion is a related but separate issue that depends on:

• The condition of your exterior walls
• The quality of your window seals
• How the window is integrated into the structure

When done right, impact windows reduce water intrusion. When done wrong? They just become another place for rain to find its way in.

Signs You May Have a Leak Around Your Windows

 Look out for:

• Fogging between window panes
• Soft drywall, peeling paint, or bubbling texture around the frame
• Water stains or discoloration
• Musty odors near the window after heavy rain

These subtle signs can turn into major headaches if left unchecked.

How We Prevent Leaks at All Impact Renovations

Most companies focus only on the glass. We focus on the whole system.

 That means:

• Using professional-grade waterproof sealants
• Ensuring proper drainage and flashing
• Thorough inspections of the surrounding exterior
• Only installing Miami-Dade and Broward County-approved impact window systems

This is your home — not a science experiment. We treat every job like it’s storm season 365 days a year.

Bottom Line: Impact Windows Can Help Keep Water Out — If Done Right

Don’t assume your windows are sealed just because they’re new or labeled “impact-resistant.” Want to be 100% confident your home is ready for the next downpour or hurricane?

Book Your Free Window & Seal Inspection

We’ll check your windows, test for leaks, and give you clear, honest feedback — no sales pressure.
👉 Schedule Your Free Inspection Today »