Single Hung vs Casement Impact Windows: What’s the Difference? (A South Florida Guide)

Single Hung vs Casement Impact Windows: What’s the Difference?

When choosing impact windows for your home in South Florida, one of the most common comparisons homeowners make is between single hung and casement windows.

Both options are designed to meet Florida’s hurricane standards and provide protection against:

  • High winds

  • Flying debris

  • Severe weather conditions

However, they differ in how they operate, their energy efficiency, and overall functionality.

Understanding these differences can help homeowners choose the right option for their home.

What Are Single Hung Impact Windows?

Single hung impact windows are one of the most traditional window styles.

They feature:

  • A fixed top sash

  • A bottom sash that moves vertically to open

This means only part of the window opens at a time. 

Because of their simple design, single hung windows are commonly used in many South Florida homes.

What Are Casement Impact Windows?

Casement impact windows operate differently from single hung windows.

They:

  • Are hinged on one side

  • Open outward like a door

  • Use a crank to open and close

This design allows the entire window to open fully. 

Casement windows are often used in areas where maximum airflow or easy operation is needed.

Key Differences Between Single Hung and Casement Windows

While both window types provide hurricane protection, they perform differently in several areas.

How They Open

  • Single Hung:

    • Opens vertically

    • Only the bottom portion moves

  • Casement:

    • Opens outward on a hinge

    • Entire window opens

This is the most noticeable difference between the two styles.

Ventilation

  • Single Hung:

    • Limited airflow since only half the window opens

  • Casement:

    • Allows maximum airflow

    • Can capture outside breezes more effectively 

Casement windows are often preferred when ventilation is a priority.

Energy Efficiency

  • Single Hung:

    • Good energy efficiency due to fewer moving parts

  • Casement:

This can help reduce heat transfer in South Florida’s climate.

Cost

  • Single Hung:

    • More affordable option

    • Simpler design with fewer moving parts

  • Casement:

    • Typically higher cost

    • More complex hardware and design 

​Budget often plays a role in this decision.

Appearance

  • Single Hung:

    • More traditional look

    • Common in many home styles

  • Casement:

    • More modern appearance

    • Larger, unobstructed glass area

This can affect the overall style of your home.

Ease of Use

  • Single Hung:

    • Requires lifting the bottom sash

  • Casement:

    • Opens easily with a crank

    • Ideal for hard-to-reach areas like over sinks 

Casement windows are often chosen for convenience.

Which Option Is Better for South Florida Homes?

The best choice depends on your priorities and how the window will be used.

Choose single hung impact windows if you want:

  • A more budget-friendly option

  • A traditional window style

  • Simple design with fewer moving parts

Choose casement impact windows if you want:

  • Maximum airflow and ventilation

  • Better energy efficiency​

  • A modern look with larger glass areas

  • Easier operation in hard-to-reach spaces

Choosing the Right Company

Selecting the right company is essential when investing in impact windows.

At Statewide Windows and Doors, impact window systems are designed to meet Florida’s strict building codes while providing durability, efficiency, and long-term performance.

Professional installation ensures your windows perform as intended during severe weather.

Choosing with Confidence

Single hung and casement impact windows both offer strong protection for South Florida homes, but they differ in functionality, efficiency, and cost.

The most important factors to consider are:

  • How the window operates

  • Your budget

  • Ventilation needs

  • Overall design preference

At Statewide Windows and Doors, homeowners can explore impact window solutions designed to provide lasting protection and peace of mind.