Steel Casement Windows 

The Benefits of Custom Steel Casement Windows

Black steel casement windows are a contemporary and clean-looking way to add value to your home. Typically opened by a crank, they are easy to operate and are energy efficient. A casement window has a sash that presses against weatherstripping and is held in place with a latch, creating a tight seal and temperature barrier when closed. When the sun’s out, an open custom steel casement window allows a warm breeze to come directly into the home.

In short, weathertight, easy-to-operate steel casement windows look great and add functionality to any home. Steel is very durable and lasts for a long time, which is why it’s one of the best materials for casement windows. Portella’s unique manufacturing processes and factory glazing techniques allow us to keep every process in-house, ensuring the highest quality for all of our custom steel windows.



What Is a Steel Casement Window?


A steel casement window is a window that has hinges on one side — most commonly the left side or right side — that swings out horizontally. The window sashes swing outward toward the home’s exterior, rather than sliding up and down. Homeowners use a crank on the interior that turns into a gearbox to push open the window or to shut it.

Steel casement windows are secured with an interior latch to seal the window shut, which provides weatherproofing benefits. The screen is also often on the inside of the window rather than the outside. Steel frame casement windows are also popular for their simple geometry and clean lines.


custom steel casement window


Types of Custom Steel Casement Windows


There are many types of glazed or black steel casement windows that can be custom-designed to meet your needs. A single casement window may be just right over an appliance like a kitchen sink. Double pane steel casement windows are two casement windows placed side by side, which can be perfect for the front of the house or a living room.

For a more elegant and impressive look, consider french casement windows to draw attention to a beautiful view. A bottom-hung design is great for a steel casement basement window, allowing a bit of light and airflow without taking up too much space. Thermally broken casement windows are a good solution for preventing the transfer of heat and maintaining the interior temperature of a home.


custom steel casement windows


Single Casement Windows


A single out-swing style steel casement window is one of the most popular designs. They feature one single window pane hinged like a door on one side, held in place by a simple sash. The frame has very clean lines. The windows push open and stay open, ushering fresh air into the home. Portella’s casement windows are sealed all the way around, which not only prevents air from leaking in or out but also reduces noise.


thermally broken casement windows


Double Pane Steel Casement Windows


Double pane steel casement window designs are simply two singles side-by-side. The left window has a hinge on the left side and the right window has a hinge on the right side. They open outward toward each other and usually feature a vertical post in the middle. Double out-swing steel casement windows are often used for the front of homes or bedrooms, and the metal frames can be glazed to your liking.


steel casement window


French Casement Windows


Steel French casement windows are similar to double casement windows in that they feature two casement windows placed side by side. They also open outward from the center, much like French doors. But since there is no center vertical post disrupting the sightline, out-swing steel french casement windows are an excellent choice for homeowners who want to highlight a scenic view. The outward motion can extend 90 degrees for an expansive feel.


modern steel casement windows


Bottom-Hung and Top-Hung Casement Windows


While side-hung casement windows are the most commonly seen style of steel-framed casement windows, there are other swing types: top-hung or bottom-hung.

Bottom-hung means the hinge is at the bottom and the window opens at the top. Often called hopper windows, bottom-hinged versions usually open inward and are favored for steel casement basement windows because they can fit in small spaces, while still inviting natural light and airflow.

Top-hung windows have a hinge at the top and open at the bottom. They open outward, providing a bit of an awning. They are good for wet climates because they let air into the home while keeping out raindrops.


steel casement windows


Thermally Broken Casement Windows


A thermally broken casement window has the same structure as a regular casement window with the added benefit of preventing thermal energy loss. As a leading steel casement manufacturer, Portella offers windows that have a thermal barrier made of high-density cast polyurethane, which is installed inside the window frame.

A thermal break acts as a protective barrier and keeps heat energy from being conducted through the window frame. Our thermally broken steel casement windows are NFRC-rated thermally broken and feature carbon steel (choose from stainless steel, CorTen, or bronze), as well as the option for double, single, or triple glazed. Other options are available for you to create the perfect custom steel casement window.


black steel casement windows


What Are the Advantages of Steel Casement Windows?


Steel casement windows have clean metal frame lines and simple geometry, which create a contemporary look, complementing your modern home’s aesthetic. They are easy to operate using a latch, so anyone can open and close them without straining.

With new steel casement windows, the latch seals the sash to the weatherstripping, which keeps cold air out and offers guaranteed energy efficiency. When the metal windows are open, the sash helps usher the breeze directly into the home. And, since stainless steel is so durable, it lasts for a long time.


steel frame casement windows


How Do I Care for Steel Casement Windows?


It’s important to keep new steel casement windows maintained throughout the year, including the metal frames. The joints should be caulked annually. If there is old caulking between the glass and the metal window frame, it should be scraped out before applying new caulking. Also, maintain the hinges: prevent rust by applying a rust remover and use lubricant between the steel window hinges to maintain ease of use.

You should also clean the windows with glass cleaner so they are not dirty, which would ruin the look of your steel casement window. And, be sure to touch up the paint if your steel casement window has brushed paint. Peeling paint can sometimes lead to mildew or mold if moisture gets trapped inside.


custom steel casement window


Are Steel Casement Windows Efficient?


Modern steel casement windows are very energy efficient, making them a great choice for homeowners who want to maintain indoor temperatures and reduce energy usage. A steel window latch creates a tight seal between the casement and the weatherstripping, which prevents air from traveling between the exterior of the home and the interior of the home.

Steel casement windows reduce reliance on central heating or air conditioning, slashing energy bills and saving homeowners money. The addition of steel casement windows helps to reduce a home’s overall carbon footprint and at Portella, our windows are made from 100% recyclable, durable steel. Steel casement windows are built to last, and are an eco-friendly choice for any home.

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