What are transom windows?

May 27, 2025

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Table of Contents

 

1. What Are Transom Windows?

 

2. Types of Transom Windows

2.1 Fixed Transom Windows

2.2 Hinged Transom Windows

2.3 Sliding Transom Windows

2.4 Louvre Transom Windows

2.5 Arched Transom Windows

 

3. Benefits of Transom Windows

 

4. How to Choose the Right Transom Window

 

5. Installation of Transom Windows

 

6. Maintenance Tips for Transom Windows

 

7. Frequently Asked Questions (FAQ)

       

 

1. What Are Transom Windows?

 

Transom windows are a window located above doors, other windows or passageways. They are designed to be both functional and aesthetic for a residential or a commercial space. On one hand, they can bring in natural light and provide ventilation. On the other hand, they can add your space a unique look to the overall look of a building or a project.

 

2. Types of Transom Windows

 

2.1 Fixed Transom Windows

 

Fixed transom windows are not open-able. They have a simple frame that holds a glass pane firmly in place. This type of transom window is highly popular for its simplicity and low maintenance. Since there are no moving parts, there's no risk of mechanical failures and are more energy efficient. This often makes them a reliable choice for long term use. They are more installed for areas such as above front doors, in hallways or over kitchen cabinets. Their design can also be fully customized to fit various shapes and sizes.

 

Feature

Details

Operation

Can not be opened

Maintenance

Low maintenance in aluminium material

Natural Light

All day with natural light

Ideal Locations

Above entryways, hallways or over kitchen cabinets

 

fixed transom windows

2.2 Hinged Transom Windows

 

Hinged transom windows offer both natural light and ventilation. These windows are attached to their frames with hinges usually at the top. We call them awning windows (they can swing open either inward or outward). They often have a window handle for easy operation. Hinged transom windows are also elegant in look. They are often installed above living room or bedroom doors to provide fresh air.

 

Feature

Details

Operation

Can be swing open (inward or outward)

Maintenance

Low maintenance in aluminium material

Ventilation

Good for airflow

Aesthetics

Can add an elegant look to the building

 

 

hinged transom windows

2.3 Sliding Transom Windows

 

Sliding transom windows are a modern window design and when done in a golden surface finish, they look luxurious. These windows can slide horizontally in the tracks and they can be divided into 2 types: 2 track sliding window and 3 track sliding window. Both types are similar to sliding glass doors. This sliding window design is space saving as they don't require additional room to swing open.

 

Feature

Details

Operation

Can slide horizontally in tracks

Key Feature

Space Saving with good air flow

Maintenance

Low maintenance in aluminium material

Design

Modern and sleek window

 

 

sliding transom windows

 

2.4 Louvre Transom Windows

 

Louvre transom windows are windows with horizontal slats or blades. Such slats or blades can be adjusted to control light, ventilation and privacy. You can control the angle to prevent rain from entering when the window is open. These windows are often used in bathrooms, laundry rooms or near building entrances where privacy and ventilation are both essential.

 

Feature

Details

Operation

Slats can be adjusted to control light and air

Privacy

Provides good privacy when slats are closed

Weather Resistance

You can control the angle to prevent rain entry

Ideal Locations

Bathrooms, laundry rooms, building entrances

 

 

louvre transom windows

 

2.5 Arched Transom Windows

 

Arched transom windows looks great for any space. They can be customized in various curved shapes with features. These windows not only enhance the beauty of your space but also allow for more light to enter compared to rectangular transom windows. Even if some arched transoms are fixed, some can also be designed with a hinged or a casement window type. They are often installed above front doors of mansions, in churches or in living rooms.

 

Feature

Details

Customization

Can be fully customized in different shapes

Window Design

Modern and sleek window

Natural Light

They can bring more light than rectangular windows

Installation Locations

Above front doors, in churches, living rooms

 

 

arched transom windows

 

3. Benefits of Transom Windows

 

Transom windows have a lot of benefits. First, they can bring you natural light in a space. This helps you to reduce the need for home or commercial lighting during the day. (save energy bills). Second, many types of transom windows such as hinged, sliding and louvre windows can provide ventilation to help you improve the air quality. Also, they are modern and sleek in look if made in aluminium.

 

4. How to Choose the Right Transom Window

 

When choosing a transom window, several factors should be considered. First, you need to prioritize the purpose of a window solution. Is it for light, ventilation or aesthetics? Consider the architectural style of your building to help you make your decison. For example, a residential home in cold areas may consider an aluminium hinged transom window. While in hot areas, you may customize a sliding transom window. Also, you can think about the location of the window and if you need it to save space or not. Finally, you can discuss it with your aluminium windows supplier to understand the cost. Normally, a custom shaped transom window or a casement transom windows may be more expensive than fixed ones.

 

5. Installation of Transom Windows

 

We suggest you ask for a professional installer to help you when install. They have the necessary tools and expertise to ensure proper measurement, fitting and sealing. For operable transom windows, you will need to install the window handles and window sashes correctly. Professional installation not only ensures the window functions properly but also helps to prevent issues such as leaks. You can find certified installers through HomeAdvisor . This is a third party platform to find your right aluminium windows and door installer for home or commercial projects.

 

6. Maintenance Tips for Transom Windows

 

To keep your transom windows work well, you can do some regular maintenance. For fixed transom windows, the maintenance is simple. You can simply clean the glass and frame regularly with a mild cleaning solution. For operable aluminium windows with a transom such as sliding transom windows or an aluminium casement window with top transom, you need to lubricate the moving parts (hinges, tracks) periodically to ensure smooth operation. If you notice any signs of damage such as cracks in the glass or rust on metal parts, you can contact your aluminium windows supplier or factory for help. For local maintenance guides in the US, our working partner -This Old House  can help.

 

7. Frequently Asked Questions (FAQ) about the sliding transom windows

 

7.1. Are sliding transom windows energy efficient?

Sliding transom windows can be energy efficient when they are made with aluminium thermal break system and double or triple tempered glass. There are many energy efficient window types for option, you can check and compare from each aluminium windows supplier.

 

7.2. Can I install a sliding transom window myself?

We suggest you install your sliding transom window by a professional installer. Installing windows requires precise measurements, proper sealing and the knowledge of building codes.

 

7.3. How much do a transom windows cost?

The cost of a sliding transom window varies depending on factors such as the type (fixed, operable), material (wood, vinyl, aluminum), size, and level of customization. To get accurate quotes, you can ask for quotes from different window suppliers in China.

Are you looking for a reliable aluminium sliding transom windows factory in China for your home or commercial project? Contact us for a free quote.

 

Are you looking for a reliable aluminium sliding transom windows factory in China for your home or commercial project? Contact us for a free quote.
 

At Hotelworks Group, we also offer a wide range of building materials and solutions with affordable prices, including aluminium windowsand doors , soundproof room panels ,swimming pool tiles ,furniture ,sanitary ware,outdoor sunshades  and more.

 

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To customize your aluminium window treatment solutions, Hotelworks Group is your best partner in China – send inquiry now.

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