Floating Mullion

Our uPVC French casement windows in Kent feature a flying mullion that allows for enhanced ventilation with increased views. This means that they promise a brighter, more comfortable room.

Affix Showroom

You can visit our Kent showroom if you’re local to Sidcup. We have stunning French casement windows on show for you to look at. We can advise you as to which window is best for your home.

Low Maintenance

Our French casement windows are incredibly low maintenance due to the inherent qualities of uPVC. This means that they promise to maintain their appearance without any hassle.

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French Casement Window Installations, Kent

Affix Windows supply and install uPVC French casement windows as an exquisite style window to homeowners in Sidcup, Blackfen, Dartford, Bexleyheath, Welling, Bromley, Chislehurst, the surrounding areas of Kent and London.

Exuding a pristine aesthetic, our French casement windows are an ideal solution to bring elegant flair to your home. Combine a beautiful appearance with high performing features to offer you more for your money. There’s no reason to settle for less.

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High Performance, Beautiful Design

Capturing the very best in performance and appearance, our casement windows use the outstanding uPVC profile from REHAU and Profile 22. This design specialises in offering you more for your money, including exceptional degrees of thermal efficiency and soundproofing.

The flying mullion, unique to the French casement windows design, also offers a practical advantage. By removing the need for a permanent fixture, these windows in Kent provide a vast space when opened, which allows them to be used in all habitable rooms.

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Start Your Free Quote

Get an estimated price for a set of French casement windows in Kent by using our innovative online quoting engine. It’s free to use and works on any device.

French Casement Windows Retain Heat

Offering Windows Energy Ratings of ‘A-C’, our French casement windows in Sidcup & Kent feature an exceptional weather gasket. This means your property will achieve a much higher degree of heat retention, enhancing the performance of your central heating and reducing your heating bills.

The EPDM gasket is a high-performance weatherseal that is high quality by design. This gasket resists ageing and weathering to your new French casement windows, allowing you to enjoy them for longer.

They are Strong & Secure

By combining high security locking mechanisms with premium grade uPVC, our windows allow you to enjoy peace of mind with style. Offering inherent robustness, these windows promise to deter would-be intruders, keeping you, your family and your property safe.

Ensuring you only get the best for your home, all of our French casement windows can meet the incredibly impressive Secured by Design standards. This means that they are in full compliance with BS7950 and have reached the demands of meticulous ‘Enhance Resistance’ testing.

French Casement Windows are Customisable

To make things easy for you, we offer a wide range of colours and styles for you to choose from. We want you to enjoy more than the performance of our Kent French windows, allowing them to become a stunning addition to your Dartford property.

If you’re looking for a more traditional look, we also offer a wide range of woodgrain laminates that allow you to outfit your French Casement windows. This is the perfect solution to bring a classic charm to any home.

View Our French Casement Window Designer

If you want to know how to use our new French windows designer, then take a look at our handy video below. This shows you exactly what you are required to do. It’s free and easy to use, so why not give it a go today!

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French Casement Window Prices, Sidcup

Use our online quoting tool today to start your quote for uPVC French casement windows in Kent. Located in Blackfen, we operate closely to Sidcup, Dartford, Bexleyheath and Welling, but we do cover a broader area.

Get started today, whatever device you’re working on. Our online quotes are available to those using mobiles and tablets as well. Just submit your details and start designing your new flush windows today.

French Casement Windows Design Options

Double Glazing Benefits Gillingham

Georgian Bars

This style option allows you to tailor your window glazing to create a personal finish for your home. This is achieved by inserting a shaped bar in between the glass panes.


Astragal Bar

Similar to Georgian bars but offers a more traditional finish by planting shaped bars on top of the glass panes thus creating depth to the design and the look of individual glass units.


Mock Horn

Our Mock Horn feature enhances the aesthetics of your windows and adds a heritage by replicating the appearance of a traditional vertical sliding sash window.

Contact Affix Windows

You can get in touch with a member of our friendly team should you require any more information regarding our French casement windows in Kent and how they can benefit your home. Simply fill out our online contact form or call us on 020 8316 0197 today.

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