Glasswing® Casement Windows

Awning vs Casement Windows 

10 minutes

Awning and Casement Windows are highly regarded for their efficiency and aesthetic appeal in homes. Both types of windows are hinged and operate by opening outward, allowing for better air circulation and ventilation in a room. However, there are also some differences that set them apart.   

Awning windows and casement windows are two types commonly found in homes of all types. They both offer advantages and disadvantages, and the choice between them depends on numerous factors such as the style, function, and location of the window, as well as personal preferences.  

What is an Awning Window?  

Awning windows are hinged at the top and open outward from the bottom, creating an “awning” effect when they are open. They are typically operated with a hand-crank mechanism and are often used in combination with other window types or placed higher on walls to provide ventilation and natural light without compromising privacy. Awning windows are known for their modern and sleek appearance, and they are commonly used in contemporary or minimalist architectural styles. Some advantages of awning windows include: 

  • Weather resistance: Awning windows are designed to keep rainwater out even when they are partially open, as the slanting design of the window prevents water from entering the interior space. This makes them ideal for areas with heavy rainfall or high wind conditions. 
  • Ventilation: Awning windows can be partially opened from the bottom, allowing for ventilation while maintaining privacy and security, making them suitable for bathrooms, kitchens, and other areas where privacy is desired. 
  • Energy efficiency: Awning windows typically have good insulation properties when closed, as they are pressed tightly against the window frame, reducing drafts, and improving energy efficiency.  

What is a Casement Window?  

A casement window is a type of window that is attached to its frame by hinges, allowing it to open outward like a door. It typically operates using a crank or lever mechanism that allows the window to swing open horizontally, creating a large opening for ventilation and natural light. Casement windows are often used in residential homes and are known for their versatility, functionality, and energy efficiency. 

They may feature a single pane of glass or multiple panes arranged in a grid pattern and can be designed in a wide range of styles to complement different architectural aesthetics. Some casement windows also have additional features such as insect screens, decorative grilles, and multiple locking points for enhanced security. 

Benefits of Casement and Awning Windows

Casement and awning windows offer several benefits, including: 

They can be fully opened, allowing for maximum airflow and ventilation. They can be strategically positioned to capture natural breezes and promote cross-ventilation in a room, helping to improve indoor air quality and reduce reliance on artificial cooling or heating systems.  

Casement and awning windows are renowned for their energy-efficient design. When closed, they provide an airtight seal against the elements, which helps to reduce drafts and air leakage. This can result in improved insulation and lower energy consumption, leading to potential energy savings and decreased utility bills.  

These types of windows commonly feature a solo pane of glass or multiple panes arranged in a grid pattern, providing an unobstructed view of the outdoors. When fully opened, they lack a central rail or vertical sash, offering a clear view and allowing for ample natural light to enter the room. 

They are both available in a wide range of styles, materials, and finishes, making them suitable for various architectural aesthetics and design preferences. They can be customized to match the aesthetics of a home or room, adding to the overall visual appeal and value of the property. 

Awning and casement styled windows are typically operated using a crank or lever mechanism, making them easy to open and close with minimal effort. Furthermore, they often feature multiple locking points, enhancing security and deterring intruders.  

The design of casement and awning windows makes them resistant to weather. They close tightly against the frame to prevent water, wind, and dust from entering the room, which helps to keep the interior space comfortable and dry, even during inclement weather outside.  

Casement and awning windows are minimal maintenance, as they have simple designs with fewer moving parts compared to other window types. They are easy to clean and typically require minimal upkeep, making them a practical choice for many homeowners and businesses.  

Awning Windows vs Casement Windows: What are the Differences?  

While both windows provide a similar level of functionality, comfort and style, there are some key differences between them that should be considered when choosing the perfect window for your home. Some of these differences include placement and capabilities for installation, energy efficiency, weather resistance, security, and cost.  

Placement and Installation Differences:  

Casement windows are typically placed vertically and are taller than they are wide. They are commonly used as standalone windows or in pairs, with one window on either side of a fixed panel or another casement window. Awning windows, on the other hand, are typically wider than they are tall and are often installed horizontally, hinged at the top and opening outward from the bottom. They are commonly used in areas where horizontal placement is more practical, such as above countertops or in tight spaces. 

Weather Resistance 

Casement windows are known for their excellent weather resistance due to their design that allows them to seal tightly against the frame when closed. This helps to not allow for drafts and water infiltration, making them a good option for areas with harsh weather conditions. Awning windows, on the other hand, may not provide the same level of weather resistance, as they are hinged at the top and open outward from the bottom, leaving a small gap at the top where water and air can potentially enter. But this is a very minimal difference that can easily be remedied by installing a weatherproofing kit.  

Design & Aesthetics  

Casement and awning windows have slightly unique design aesthetics. Casement windows often have a traditional or classic look, with their tall, vertical orientation and crank handles. They are commonly used in homes with a more traditional architectural style. Awning windows, on the other hand, have a more contemporary or modern look, with their wider, horizontal orientation and top-mounted handles or cranks. They are commonly used in homes with a more modern or minimalist architectural style 

Energy Efficiency  

Casement windows, when professionally installed and sealed, can offer excellent energy efficiency. When closed, they seal tightly against the frame, which can help minimize air leakage and drafts. This tight seal can also reduce heat transfer, helping to keep the interior of your home warmer in winter and cooler in summer, which can potentially result in lower energy bills. Additionally, casement windows typically have fewer mullions or dividers compared to other window types, which can reduce the amount of frame area and increase the glass area, allowing for more natural light to enter the space.  

Awning windows, on the other hand, may have slightly lower energy efficiency compared to casement windows due to their design. Awning windows are hinged at the top and open outward from the bottom, which can create a small gap at the top when they are closed, potentially allowing some air infiltration. However, this can be mitigated with proper sealing and installation techniques, such as using weatherstripping and ensuring a tight fit during installation. 

Both casement and awning windows can also be equipped with energy-efficient glass options, such as Low-E (low-emissivity) glass, which can further enhance their energy performance by reducing heat transfer and UV radiation. Additionally, both window types can be combined with other energy-efficient features, such as insulated frames, multi-pane glass, and argon gas fills between the panes, to further improve their energy efficiency.  


casement and awning windows are considered among the more secure window options due to their design, which requires a hand crank or lever on the inside to open them. This feature provides an added layer of security as the windows cannot be opened from the outside without operating the crank or lever from the inside.  

The hand crank or lever used to operate casement and awning windows is typically located on the interior side of the window, often at the bottom or along the side. This means that to open the window, an individual must have access to the home’s interior, making it harder for potential intruders to gain unauthorized entry. This can be especially advantageous for ground-level windows or windows in vulnerable areas of a home, where security may be a top concern. 

Cost Differences 

Now that we have discussed the differences between casement and awning windows, it is important to consider the cost differences as well. Casement windows tend to be slightly more expensive than awning windows due to their larger size and more complex mechanisms. However, the exact cost will depend on a variety of factors, such as the type and quality of materials used, the size and style of the windows, and the level of customization required.  

Which is the Best Style of Window for Your Home, Awning or Casement?

When deciding between an awning and casement windows, it is important to consider several factors. In addition to energy efficiency, security, and cost, it is also important to think about the style and overall design aesthetic of your home. Awning windows may be a better fit for homes with a more traditional or cottage-style architectural style, while casement windows might be better suited for modern or contemporary homes. The best style of window for your home will depend on your personal preferences and the specific needs of your space. 

DaBella can help you make your decision and give you expert advice as to what will be your best option when it comes to choosing between awning and casement windows for your home. With years of experience and knowledge in the industry, our team can assess your space, discuss your needs and preferences, and recommend the best window style for you. We can also provide professional installation services, ensuring that your windows are installed correctly and perform at their highest level of energy efficiency and security. Don’t hesitate to reach out to us for all of your window needs. 

Contact the Window Replacement Experts at DaBella Today 

When it comes to replacing windows in your home, understanding the key differences between window styles is crucial. In this article, we have compared the energy efficiency, security, cost, and style of casement and awning windows. We have highlighted the benefits of each style and the circumstances under which each may be the best choice for your home. Whether you choose awning or casement windows, the team at DaBella can help you make an informed decision and ensure that your windows are installed professionally and performing at their best. 

We offer a wide variety of vinyl window styles to suit the unique needs and preferences of your home. Our vinyl windows are crafted from high-quality materials and designed to be energy-efficient, secure, and visually appealing. With options for customization and professional installation services, we can help you find the perfect windows for your home. Contact us today to learn more about our vinyl window selection and to schedule a consultation with one of our experts.  

Contact us today to schedule your free-no obligation estimate for your next window replacement project. When it comes to upgrading your home’s windows, there are many factors to consider. From energy efficiency to security, style to cost, the decision can feel overwhelming. However, with the expert guidance of the team at DaBella, you can make an informed decision that best suits the needs of your home and your personal preferences. Our wide selection of high-quality vinyl windows, combined with professional installation services, ensures that your home will have durable, energy-efficient, and visually appealing windows that will last for years to come. 

Steven Shortridge

District Manager

Portland, OR

Learn more about Steven