Double Hung vs. Casement Impact Windows in South Florida

Choosing the right impact windows for a Florida home isn’t just about aesthetics. It’s a decision that affects your safety, energy bills, and long-term comfort. With hurricane season running June through November, the stakes are real. East Coast Windows & Doors is breaking down double hung vs. casement impact windows for homes in South Florida. By the end, you’ll know exactly which style fits your home best.

Why Impact Windows Are Essential in Florida

Many homeowners have decided that standard windows don’t cut it in South Florida. When a hurricane rolls through, ordinary glass can shatter under wind pressure and debris impact, turning your windows into a liability. Impact windows Florida homeowners rely on are built differently, with laminated glass bonded to a reinforced frame that holds together even when cracked. Beyond storm protection, they reduce outside noise, improve energy efficiency, and can lower your homeowner’s insurance premium.

What Are Impact Casement Windows?

Casement impact windows are hinged on one side and swing outward, operated by a hand crank. Since the sash seals tightly against the frame when closed, it creates an exceptionally strong weather barrier. Because there’s no vertical split down the middle, you get an unobstructed view and maximum glass area compared to its frame size. They’re a popular pick for living rooms, bedrooms, and any space where airflow and sightlines matter.

What Are Impact Double Hung Windows?

Double hung impact windows feature two operable sashes that slide vertically. You can open the top sash, the bottom sash, or both at once. That flexibility makes them a classic choice for most rooms in a home. Double hung hurricane impact windows are also easy to clean from inside. Both sashes tilt inward on most modern models, which is a practical advantage for two-story homes where exterior access isn’t easy.

What to Consider When Comparing Types of Impact Windows

Both window styles offer strong hurricane protection, but they differ in several meaningful ways that can affect your day-to-day experience. Some key things to consider when comparing these two kinds of windows include:

• Ventilation – Casement windows direct the full sash opening toward airflow, making them more efficient at catching cross-breezes than double hung models.
• Seal Strength – Casements compress against the frame when locked, creating a tighter seal that reduces air and water infiltration.
• Cleaning Ease – Double hung windows tilt inward for interior cleaning, a clear advantage for upper-floor installations.
• View Quality – Casements offer a wider, unobstructed glass area with no horizontal rail dividing the pane.
• Opening Clearance – Double hung windows open without projecting outward, making them the right call for patios, walkways, or anywhere exterior clearance is limited.
• Classic Look – Double hung windows suit traditional architecture more naturally, while casements lean contemporary.

Does One Style Offer Better Hurricane Protection?

Both styles, when built to Florida’s strict building codes, deliver comparable hurricane protection. The difference between casement windows and double hung comes down to the frame seal rather than the glass strength. The laminated glass performs equally well in both. A properly installed casement does compress more tightly when locked, which can reduce air pressure differentials during a storm. That said, a high-quality double hung with a solid multi-point locking system performs just as reliably in practice.

Energy Efficiency and Ventilation Comparison

The benefits of casement windows extend to year-round energy performance. Their compression seal limits conditioned air from escaping, which keeps your cooling costs lower in Florida’s heat. On the ventilation side, a fully open casement exposes the entire sash area to airflow, a meaningful advantage during mild weather when you’d rather skip the AC. The benefits of double hung windows include flexible ventilation control: opening both sashes simultaneously creates a stack effect that draws warm air out through the top while pulling cooler air in through the bottom. .

FAQs About Impact Windows

Are Casement or Double Hung Windows Easier to Install?

Both styles follow a similar installation process for impact-rated products. Complexity depends more on the opening size and existing frame condition than on the window style itself.

Which Window Type Works Better for Second-Floor Rooms?

Double hung windows are generally the better fit upstairs. Both sashes tilt inward for cleaning, so you don’t need exterior access at height.

Can Both Styles Meet Florida Building Codes?

Yes. Both casement and double hung impact windows can be manufactured to meet Florida’s stringent wind load and impact resistance requirements.

Which Style Is Better for a Beach-Facing Wall?

Casement windows offer a tighter compression seal when locked, which can be an advantage on walls that take direct wind and salt spray exposure.

Do Both Styles Come with Low-E Glass Options?

Most impact window manufacturers offer Low-E glass in both casement and double hung configurations, helping to reduce heat gain from Florida’s intense sun.

Get a Free Impact Window Estimate Today!

Still weighing your options? Our team at East Coast Windows & Doors is here to help you make the right call for your specific home and budget. No pressure, no rush. We serve Broward and Palm Beach County homeowners with honest guidance and quality PGT products. Visit our Pompano Beach showroom or reach out online to schedule your free estimate.

Contact East Coast Windows & Doors today to schedule your free “no-pressure” estimate.