Casement windows and double hung windows are two popular types of windows used in homes and commercial. Each type has its own set of features and advantages. 

Understanding the differences between these two window types can help you make an informed decision when choosing windows.

Casement vs Double Hung Windows: What’s the Difference?

The key difference between casement and double-hung windows is how they open and close. Casement windows are hinged on one side, so they open and close horizontally like a door.

 Double-hung windows open and close by sliding sashes vertically up and down.

What is a Casement Window?

Casement windows are windows that are attached to the frame by one or more hinges at the side. They open outward, usually with a crank mechanism. 

These windows are known for being easier to operate and offering clearer views than their counterparts. 

Casement windows, or crank out windows, are defined by these three characteristics:

1. Outward opening 

2. Crank operated

3. Unobstructed views

What is a Double Hung Window?

Double-hung windows feature two sashes, with each one capable of sliding up or down independently. 

This design allows for greater ventilation control compared to single-hung windows, where only the bottom sash is movable. 

The upper sash is typically fixed, but some models offer the option for both sashes to open from the top, providing additional ventilation flexibility.

 This style of window has a classic appearance that dates back to the 17th century and is characterized by its two movable sashes and traditional aesthetic.

1. Window panes that open vertically

2. Horizontal divider between the sashes 

3. Top opening functionality

Key Differences Between Casement and Double Hung Windows

The primary consideration for many people is whether they prefer windows that open outward or those that open upward. 

Outward-opening windows offer unobstructed views but can interfere with window planters or other nearby features. 

Upward-opening windows, on the other hand, save space but may sacrifice some of the view. However, the choice between them involves more than just their operation.

Understanding the Cost Differences

Replacing windows can be a costly renovation, so it's important to consider the cost comparison between casement and double-hung windows. 

Casement windows are, on average, about 10% more expensive than double-hung windows due to the complex crank opening mechanism.

Double-hung windows are more commonly used, leading to higher competition among manufacturers and thus lower costs.

 Their prices typically range between $500 and $1200 per window, while casement window prices are, on average, just 10% higher. 

The reasons for this price difference can be summarized in three key points:

1. Casement window cranks are more complex to manufacture.

2. Double-hung windows face greater market competition.

3. Casement windows have lower demand.

Why Choose Casement Windows?

Casement windows are increasingly favored in modern homes that embrace contemporary styles. They offer several advantages over double-hung windows but also come with a few drawbacks.

Creating a pros-and-cons list can help determine if casement windows are suitable for your home.

Benefits of Casement Windows

One of the main advantages of casement windows is their easy crank opening mechanism. 

This feature has made them popular among elderly or disabled homeowners who may struggle with lifting heavy window sashes. 

Casement windows are also commonly found in kitchens because they are easier to open when reaching over a sink or countertop.

Another benefit of casement windows is their unobstructed views. Since there is no sash dividing the window, they provide the best views.

Additionally, when fully closed and locked, casement windows create a tight seal, which is excellent for temperature control and energy efficiency.

Casement windows offer several advantages, including:

Ventilation: They can be opened fully, allowing for maximum airflow into the room.

Energy Efficiency: When closed, casement windows provide a tight seal, reducing air leakage and improving energy efficiency.

Security: Casement windows are difficult to force open from the outside, providing added security.

However, casement windows also have some disadvantages, including:

Casement window costs are higher on average: Casement windows cost 10% more to replace than double-hung windows.

Crank failure: The crank mechanism used to open and close casement windows can sometimes fail, requiring repairs or replacement.

Cannot fit A/Cs: Due to their design, casement windows may not be suitable for installing air conditioning units, limiting cooling options in some situations.

Window can pull off sash: In strong winds or if not properly maintained, the window sash (the frame holding the glass) of a casement window can potentially be pulled off, leading to security and safety concerns.

Why Choose Double Hung Windows?

Double-hung windows have a timeless appearance that complements any home aesthetic. Their design and functionality are straightforward, which is reflected in their pricing. 

It's no wonder they are the most popular window choice, but there are areas where their design lags behind the competition.

Benefits of Double-Hung Windows

One of the main advantages of double-hung windows is their simplicity, which translates to low maintenance and a low risk of mechanical failure. 

This simplicity contributes to their longer average lifespan. Coupled with their lower price compared to other window types, double-hung windows are a more economical choice.

In fact, some homeowners opt to replace casement windows with double-hung windows when faced with mechanical issues. 

Additionally, their functional design accommodates most window air conditioning units, making them a practical choice for cost-conscious homeowners.

Double-hung windows offer several advantages, including:

Space-Saving: They do not protrude outward, making them ideal for areas with limited exterior space.

Easy Maintenance: Both sashes can tilt in, making them easy to clean from inside the house.

Versatility: Both the top and bottom sashes can be opened, allowing for flexible ventilation options.

However, Double-hung windows also have some disadvantages, including:

More difficult to open/close: Compared to casement windows, double-hung windows can be more challenging to open and close, especially if they are older or not well-maintained.

Spring balance may fail: Double-hung windows that use a spring balance system to support the sashes (movable panels) may experience failures over time, leading to difficulties in operation.

Sash frame impedes view:  The design of double-hung windows, with the horizontal sash frame dividing the glass panes, can sometimes impede the view compared to other window styles that offer a more unobstructed view.

Air Leakage: They may not provide as tight a seal as casement windows, leading to potential air leakage.