Sliding window inside bedroom.

Casement vs. Sliding Windows. What Are The Similarities & Differences?

6 minutes

Vinyl replacement windows are a great upgrade if you are looking to improve not just the look of your home, but also the energy efficiency. Vinyl windows are well known for having extraordinarily little maintenance, they are resistant to scratching, and they will never need to be repainted. At DaBella, our energy star rated vinyl windows come in a wide range of window styles including garden windows, awning windows, bay and bow windows, double hung, end vent, hopper, as well as sliding and casement windows. 

Here we will talk about the similarities and differences between casement and sliding windows and share how both can be a fantastic addition to your home. 

What is a casement window?  

A casement window is a window that opens either outward or inward. They have hinges or pivots at the upper area of the window that allow it to open and close. It is remarkably similar to any door in your home as it opens and closes similarly. Usually, these windows will come with a crank and are sometimes known as crank windows because they use a crank handle that goes in a circular motion that cranks the bottom arm of the window. These types of windows are great if you want a window that allows for a lot of natural light and fresh air to flow into your home.  

What is a Sliding Window?  

Sliding windows are windows that open and close using a track or rail that slides side to side. Most people are familiar with the sliding glass doors that are on their homes and sliding windows essentially use the same mechanisms and open and close the same. Sliding windows are a great upgrade if you are looking for a window that allows for a lot of light and air to flow into your home. They are a little easier to open and close than casement windows and some sliding windows will come with a lever that allows you to open and close the window with a simple push. 

Ventilation Differences between Casement and Sliding Windows 

There are some ventilation differences between casement and sliding windows based on the way they are built. Casement windows are able to open and close like a door and allow for a lot of air flow. Sliding windows, however, only open halfway as one pane of glass slides while the other remains stationary and reduces the maximum amount of air flow for the size of the window.  

Energy Efficiency Differences

While DaBella’s casement and sliding windows are both extremely energy efficient, sliding windows have a seal that needs to be more flexible to open and close. Casement windows on the other hand are not flexible. The seal on casement windows is not as flexible and therefore is slightly more energy efficient than a sliding window.  

Where do these windows fit in your Home? 

Both types of windows are great for your home but they both depend on the size of the window portal in your home. The space that you have available is just a minor factor in determining which type of window that should be installed. The main thing that should be considered when deciding which type of window to install is the amount of ventilation that you are looking to have. Sliding windows will not be the best option if you are looking to have a lot of ventilation into your home. Both types of windows are great for your home and will offer a lot of benefits. The main reason that homeowners decide to upgrade their windows to vinyl is to improve energy efficiency and reduce the amount of money that is spent on energy bills. 

Pros and Cons of Sliding Windows 

Pros of sliding windows includes they are quite easy to clean and maintain if they have a tilt-in sash. Does not require any exterior space. These windows are known to be very budget friendly and will not break the bank to install. Because these windows do not require a mechanism to open and takes a mild pull of the arm there is far less maintenance.  

The cons of a sliding window are that they are not as energy efficient compared to a casement window. There is also not as much ventilation that is available when compared to a casement window.  

Pros and Cons of Casement Windows 

The pros of a casement window are that it provides great ventilation since the window can open at a 180-degree angle. Casement windows are known for being very energy efficient for their tight seal to the sash. They also offer a splendid view while not being obstructed by a frame. They are easy to clean and maintain.  

The cons of a casement window are that they do require maintenance. The crank, locking mechanisms, operator arms all need to be lubricated and maintained for a long-lasting window that functions as it originally would.  

DaBella is the Preferred Casement and Sliding Window Contractor 

When looking to upgrade your windows, DaBella is the preferred contractor for casement and sliding windows. We offer a wide selection of options for you to choose from, including a wide range of options and styles. Our vinyl replacement windows either come in double pane or triple pane options. Triple pane windows are great for extra energy efficiency and will also help keep out a lot of noise pollution. We also offer a limited lifetime transferable warranty on all of our windows so you can rest assured that your windows are installed correctly and are functioning as they should. If you have any questions or concerns, our experts are available to help. 

When you choose DaBella for your next window replacement project, you get outstanding customer service that is with you every step of the way, and factory-trained installers that make sure the job is done the right way and to not only to our ambitious standards but also yours as well. Our Fairfield & Glasswing windows are energy star rated and are sure to keep your home cool in the summer and toasty in the winter without the high energy bill. We have the largest selection of options in town, so if you have any questions or are looking for a certain style of window, do not hesitate to contact us. We will go out of our way to help you find the perfect option for your home. 

Our vinyl windows are great for being both durable and affordable, making them a great option for replacing your old windows. We also offer a wide range of options for you to choose from, so you can find the style that best suits your home and your budget. 

If you are ready to take the next steps toward your next window replacement project, contact us today at 844-DaBella. Our talented window experts are waiting and ready to help you transform your home into your dream home. Whether you are looking to do a roof replacement, siding replacement, window replacement, or bath or shower remodel, DaBella is here to help you. 


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Steven Shortridge

District Manager

Portland, OR

Learn more about Steven