Transom windows sit above a door or another window, adding natural light and architectural interest to an entryway without taking up any additional wall space of their own. Our full lineup of replacement windows includes transom configurations for entryways and other rooms.
What Is a Transom Windows?
A transom window is a narrow window installed above a door frame or another window, historically used to allow airflow and light into a room before modern HVAC systems existed. Today, they’re used primarily for the natural light and visual interest they bring to an entryway, though the added light and, in operable versions, ventilation are still genuine practical benefits.
They’re especially common above front entry doors, but can also be installed above interior doors or paired with a second window to bring light into a room with limited wall space for a standard-sized window.
Fixed vs. Operable Transoms
Most transom windows are fixed, meaning they don’t open, simplifying installation and reducing potential points of air leakage. A fixed transom is generally the more energy-efficient and lower-maintenance option if ventilation isn’t a priority for that specific opening.
Operable transoms can open, typically on a hinge or crank, offering additional airflow above a door where a full window wouldn’t fit. These make sense in specific situations, like a mudroom or entryway where you want occasional ventilation without a large window taking up wall space.
Pairing Transoms with Entry Doors
A transom window paired with an entry door replacement adds height and visual weight to an entryway, making a standard door opening feel more substantial and architecturally intentional. They work particularly well alongside sidelights, the narrow vertical windows often installed on either side of a front door, framing the entrance with light from three sides.
Transoms can be left clear for maximum light, or finished with frosted, textured, or decorative glass if privacy is a priority for the entryway. Explore our styles to see transom and sidelight pairings for your home, and our Front Door Curb Appeal guide for more on entryway styling generally.
Energy Efficiency & Light
Because a transom window is typically smaller than a standard window, it has less surface area to lose heat or let in unwanted solar gain, making it a relatively efficient way to add natural light to an entryway. Vinyl-framed transoms offer the same low-maintenance, energy-efficient benefits as other vinyl window styles, resisting moisture, insects, and the wear of Utah’s seasonal temperature swings. Explore our Vinyl Window Styles guide to see how a transom fits alongside other vinyl window options for your home.
Is a Transom Windows Right for Your Home?
If your entryway feels dark or visually flat, a transom window is a relatively low-cost way to add both natural light and architectural character, whether paired with a new entry door or added above an existing one. A fixed transom suits most homes, while an operable version is worth considering if ventilation above the door matters for your specific space.
Curious whether a transom window fits your home? Schedule a free consultation with our Salt Lake City team for a free quote.
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