Are Single Hung Windows More Efficient Than Double Hung Windows?

Are Single Hung Windows More Efficient Than Double Hung Windows?

There are many considerations when choosing windows for your home. One of the most significant factors people consider is how energy-efficient the windows will be. The answer to the question, are single hung windows more efficient than double-hung windows, can help you narrow down which you want to have installed in your home.

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What are Hung Windows? 

Before the mid 17-th century, hung windows didn't exist. Hung windows came about through the invention and use of window sashes. Previously, windows were slid horizontally in the windowsill. Sashes made it possible for them to move vertically. Initially, single hung windows were the only option for new windows. Double-hung windows are a more modern invention. Single-hung windows have one sash that moves on the bottom. Double-hung windows allow both sashes to move so that you can move both the top and bottom panels of glass.

Are Single Hung Windows More Efficient Than Double Hung Windows?

Single-hung windows can be more energy-efficient than double-hung windows, depending on a few factors. As single-hung windows only have one sash that moves with the other being sealed, it tends to offer more energy efficiency. Double-hung windows that are older or poorly made often have upper sashes that don't entirely stay in place, which can result in heated or cooled air escaping your home. There are double-hung windows that offer better energy efficiency, but often these are more expensive than their single hung counterparts. Also, if you don't securely close the top sash, even energy-efficient doubt hung windows can run up your energy bills.  

Pros and Cons of Single Hung Windows 

There are certainly pros and cons that can come from choosing to install single hung windows in your house.


Single-hung windows have several pros that make them an attractive option for many building a new home or replacing their old windows. One of the biggest is that they are cheaper than double-hung windows. They are also less expensive to install as they are easier to install. They are often more energy-efficient thanks to having only one sash that opens. Single-hung windows are more secure as there is only one sash to close and lock. They are also more authentic looking for older homes trying to keep the same design aesthetic. 


Some cons can come from single hung windows. They are often more challenging to maintain than double-hung windows. In addition, they are harder to clean, especially on higher floors, as you'll have to use a ladder to reach them to clean the exterior of the panes. As double-hung windows are seen as more modern and popular, there are not as many options available for them compared to double-hung windows. 

Pros and Cons of Double Hung Windows 

Some pros and cons come from using double-hung windows in your home, as well.


Several pros make homeowners choose double-hung windows. They tilt in, which makes it easier to clean. There's no need for washing the outside of the window from the outside. They also offer more ventilation since both the top and bottom panels move. In addition, they can have better circulation when you open both the top and bottom, which is beneficial, especially in damp rooms. These windows can also be a safer option for families with young children and pets, as only opening the top panel can help to prevent falls. Also, there are many options when it comes to double-hung windows.


Double-hung windows do have some negatives. They are often more expensive than single hung windows. If you want them to be more energy-efficient, it can add to the price tag. Gravity can cause your upper sash to come down, which leads to your window not being secure from a safety standpoint and also increase your heating and cooling bills.

Single-hung windows are believed to be more energy-efficient than double-hung. The bottom line is that you'll want to weigh the pros and cons of each type of hung window to determine which is going to be the best option for your new home or remodeling project.


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