Flush Windows

Flush windows are an award winning product, expertly manufactured by our team. They are made using superior quality uPVC for decades of use and performance. Their stunning appearance characterises these windows as the sash and window lines sit flush within the frame. This means that our flush casement windows are perfect for any home of any age. You can update your home to have modern performance with the installation of our flush windows.

It doesn’t matter whether your home is modern, traditional, a period or listed building – our flush windows are the ideal solution for you. Creating a focal point for your home, these profiles boast incredible visual appeal with modern performance. For windows that offer a timeless, elegant appeal, flush windows could be the answer for you.

Due to the materials and the construction, these windows are low maintenance and require only a little upkeep. Basing its visuals on traditional and classic installations – even contemporary homes can benefit from a flush window design. The windows are also perfect for heritage homes, listed buildings or homes that are situated in conservation areas.

Flush Sash

This style is designed with a clean, contemporary finish. This ensures there are no unsightly lines for a smooth appearance. The windows are manufactured with high-quality uPVC, yet have the appearance of traditional timber. The exceptional materials offer longevity and resistance so you can enjoy the windows for years. Make a worthwhile investment when you choose our stunning flush sash windows.


Chamfered sash windows are a unique improvement to your home. The windows are distinguished by their neat chamfered edges, providing a sleek aesthetic to your property. The profiles are designed with fantastic outward opening sashes, making it easier to widen your living space. As well as this, we offer the option for a dummy sash feature, enhancing your home.


Add a classic finish to your property with our fantastic sculptured sash windows. This style features rounded, outward opening sashes, noticeably standing proud against the frame of the window. The windows offer exceptional energy ratings as well as unrivalled weather resistance. This makes them the perfect addition to both commercial and domestic properties.

Flush Sash Windows Video

Heritage Window Colour Collection

Even with a traditional style timber effect window, we want our customers to be able to enjoy the benefits of freedom of choice. That is why our heritage flush windows come in a choice of 26 colours. You can opt for the same colours inside or out.

In our colour range, we include Heritage White, Ice Cream, Agate Grey, Smooth Anthracite, Black Ash, English Oak, White PVC, Chartwell Green and many, many more.

Heritage White
White Grain
Ice Cream
Classic Cream
Agate Grey
Chartwell Green
English Oak
Irish Oak
Nut Tree
Golden Oak
Smooth Anthracite Grey
Smooth Matt Anthracite
Grained Anthracite Grey
Aluminium Grey
Black Ash

Flush Sash Window Accessories

You can also choose from a selection of hardware options and accessories. For example, you can opt for a stunning Georgian bar as well as traditional ironmongery. We as a company want you to have full control of the final look of your flush windows.

Choose from a wide range of woodgrain foils, colours and hardware options to give your flush windows the exclusive and bespoke look you’ve been looking for.

Antique Black
Hardex Chrome
Hardex Graphite
Hardex Gold
Matching Traditional Peg Stay
Antique Black
Hardex Chrome
Hardex Graphite
Hardex Gold
Matching Traditional Peg Stay
Hardex Chrome
Hardex Gold
Hardex Gold
Hardex Graphite

Our Heritage Collection Offers Luxury and Affordability

One of the many benefits that come with our flush windows is that of the design. Just because a window provides both amazing thermal performance as well as impressive security features doesn’t mean you have to compromise on the aesthetics.

The flush design gives a classic appeal to the design but can also complement a modern home. As the installation allows the sash to sit level within the frame, you will be able to enjoy windows that don’t protrude out from your home.

Better yet, our flush windows are styled to look like traditional timber windows. You can enjoy the benefits of modern performance and beauty of timber effect windows without the hassle of the traditional material.

More contemporary households are beginning to turn to flush windows as they provide a minimalist style. They are subtle in design but seamlessly and effortlessly complement the existing aesthetics. We even offer matching trims and accessories.

Heritage Glass Options

With the modern flush design, we ensure that these profiles are guaranteed to lower your energy consumption. It is vital with modern living that we all work to reduce our carbon footprint. We want to start by providing flush windows that boast incredible thermal performance.

Here at Deceuninck, we offer double and triple glazing to enhance your energy efficiency truly. Our double and triple glazing provides a fantastic thermal barrier that will trap heat. This will, therefore, leave your home much warmer and keeps the cold, bitter air at bay outside. With this, you will see a significant reduction in your energy bills and will, in turn, save yourself a lot of money.

With a lot of heritage homes in the modern day, much of your central heating is lost through underperforming, single glazed or timber windows. With flush windows from Deceuninck – you will be investing in saving yourself money and saving the environment. Our double glazed windows boast a Windows Energy Rating of A+.

Charcoal Sticks


ISO 9001
BSI Kitemark
Glass & Glazing Federation
Secured By Design
PAS 24

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Heritage Collection Brochure

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