French Casement Windows
Looking for quality windows to suit a range of projects? Choose French casement windows supplied by MLI Building Products across Worthing and West Sussex.
With 90 degree opening and no central pillar, French casement windows allow more light and air into the interior. By maximising light and ventilation, these are an ideal addition to smaller rooms.
French casement windows comply with all building safety regulations and the ‘egress hinge’ allows the window to be fully opened to serve as an escape route in an emergency.
All French casement windows supplied by us have been expertly manufactured using the latest technology and best materials. Contact us today to discuss your requirements!
Why Choose French Casement Windows from MLI?
Energy efficient
Increased energy efficiency, meaning lower energy bills and a warmer home.
Highly-secure
Increased security and protection against intruders.
Sound investment
Better soundproofing, helping keep out unwanted noise.
French Casement Window Styles and Configurations
French casement windows are a popular choice where a wider, more open window style is needed. With two side-opening sashes and no fixed central mullion, they create a clear opening that allows more light, airflow and easy access.
They can be supplied as standalone French casement windows or combined with fixed panes and multi-light arrangements to suit larger openings. Each window is made to measure, helping achieve a clean, secure and practical fit.
We supply French casement windows in a wide choice of colours and finishes, giving tradespeople and homeowners across Worthing and West Sussex a flexible option for both traditional and modern properties.
Explore the range of stylish and durable frame colour options below to complement your design.
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Agate Grey
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Dark Blue
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Anteak
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Cream Foil
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Chartwell Green
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Cedarwood
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Dark Grey
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Dark Red
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Irish Oak
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Rosewood
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Anthracite Grained
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Rustic Oak
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White Foil
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Winchester
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White Foil
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Swamp Oak
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Sapeli
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Oregon
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Mahogany
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Light Grey
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Ivory
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Golden Oak
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Dark Green
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Burgundy
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Black Foil
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Basalt
Get in touch now!
Contact our professional and knowledgeable team and we'll help you find the right supplies.
French Casement Windows as a Fire Escape Route
Because they open wide with no central mullion in the way, French casement windows can provide a practical means of escape in an emergency. Building regulations require certain rooms to have an escape window with a clear opening of a minimum size, and the dual-opening design makes it easy to achieve that generous, unobstructed gap. This makes them a popular specification for bedrooms and upper floors.
When you are planning a project, it is worth thinking about which windows need to meet escape requirements from the outset. As a trade supplier serving Worthing and West Sussex, we can help you specify French casement windows with the right opening dimensions and hardware, made to your exact measurements, so each room meets the standards it needs to.
Maximum Ventilation From a Dual-Opening Design
Because both sashes open fully, French casement windows let in far more fresh air than a standard single opener. With no central bar to interrupt the gap, the whole window can be thrown open to create a wide, clear opening that draws air through a room quickly. This makes them a great choice for kitchens, bathrooms and any space where good airflow matters.
The dual-opening design also gives you control, as one side can be opened on its own for gentle ventilation or both together when you want maximum air movement. We supply French casement windows made to your exact measurements, helping homeowners and tradespeople across Worthing and West Sussex bring better ventilation and natural light into any property.
A Clear, Unobstructed View With No Central Mullion
French casement windows feature two sashes that open from the centre with no fixed bar in the middle, creating a wide and completely unobstructed opening. This gives you a clear, uninterrupted view to the outside and a sense of openness that a standard casement cannot match. They are an elegant choice for homes that want to make the most of natural light and a stronger connection to the garden or surroundings.
Quality French Casement Windows Supplied
Casement windows combine classic appeal with modern efficiency. They’re ideal for homeowners seeking a blend of style, airflow, and energy savings. Whether used alone or paired with fixed panes for a broader view, casement windows are a versatile choice for many architectural styles.
Contact us today to discuss your requirements
Get in touch with our team today and let us help you find the best supplies for your project.
Areas we serve
We supply quality double glazing products for both homeowners and tradespeople across Worthing, Brighton, Hove, Bognor Regis and the wider West Sussex area.
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French Casement Windows FAQs
A pair of casements that open from the centre with no central mullion, giving a clear, unobstructed opening. For french casement windows, the best choice usually depends on the property style, opening size, frame finish, glazing specification, security requirements and the level of maintenance the customer wants. It is also worth thinking about how the window will be used day to day, especially for ventilation, cleaning access, weather protection and long-term energy performance. Choosing the right specification upfront helps the finished job look better, perform properly and avoid unnecessary product issues later.
Standard casements have a fixed central frame; French casements open fully in the middle. For french casement windows, the best choice usually depends on the property style, opening size, frame finish, glazing specification, security requirements and the level of maintenance the customer wants. It is also worth thinking about how the window will be used day to day, especially for ventilation, cleaning access, weather protection and long-term energy performance. Choosing the right specification upfront helps the finished job look better, perform properly and avoid unnecessary product issues later.
Wide openings can be wind-catching, and seals need occasional checking. For french casement windows, the best choice usually depends on the property style, opening size, frame finish, glazing specification, security requirements and the level of maintenance the customer wants. It is also worth thinking about how the window will be used day to day, especially for ventilation, cleaning access, weather protection and long-term energy performance. Choosing the right specification upfront helps the finished job look better, perform properly and avoid unnecessary product issues later.
Two outward-opening sashes meeting in the centre for a symmetrical appearance. For french casement windows, the best choice usually depends on the property style, opening size, frame finish, glazing specification, security requirements and the level of maintenance the customer wants. It is also worth thinking about how the window will be used day to day, especially for ventilation, cleaning access, weather protection and long-term energy performance. Choosing the right specification upfront helps the finished job look better, perform properly and avoid unnecessary product issues later.
Yes – it describes this classic double-opening, glazed style. For french casement windows, the best choice usually depends on the property style, opening size, frame finish, glazing specification, security requirements and the level of maintenance the customer wants. It is also worth thinking about how the window will be used day to day, especially for ventilation, cleaning access, weather protection and long-term energy performance. Choosing the right specification upfront helps the finished job look better, perform properly and avoid unnecessary product issues later.
Specials thanks to Loretta and Stephen
