Flush casement windows in Hampshire, Surrey, Berkshire & South-West London

Flush casement windows are increasing in popularity for home improvement projects. Unlike standard casement windows, when the window is closed, it sits flush within the frame, creating a flat surface on the outside. They feature an outward opening design and are available in various materials and colours to suit individual requirements.

Thanks to their traditional appearance, flush casement windows are often used in period or heritage homes. However, they also make a perfect addition to modern homes with their classic and understated appearance that adds minimalist style.

Evolution flush window close up

Customer Journey

The process of buying from Sherborne Windows consists of 3 simple steps:


After getting in touch with us online, in person or over the phone regarding your home improvement project, we send out a member of our friendly team to your home to do a survey and discuss your requirements further.


Once you've told us what work you'd like doing and a price has been agreed, a date that is suitable for us and yourself will be set for our installation team to carry out the work.


Once the work has finished, we provide you with a comprehensive 10-year guarantee. You'll also have access to our brilliant aftersales service, ensuring you can continue getting the best from any products purchased from us.

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Available in a Range of Materials

We offer flush casement windows in three different materials. The materials vary in terms of their characteristics and appearance, although they’re all excellent choices for your home. Click on the links below to learn more about each material.

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Eurocell white uPVC windows


A versatile and ultra-durable material, uPVC is also highly insulating and low upkeep. So, it's no wonder uPVC windows enjoy so much popularity.

Black aluminium window


Aluminium is well known for how strong it is and how beautiful it looks. For these reasons and many more, you can't go wrong when choosing aluminium windows for your home.

Grey casement timber window


Timber windows have been improved to meet the demands of modern homeowners, although they still offer the same timeless charm that they always have.

Choose from a Huge Selection of Colour Finishes

The colour choices we have available for our casement windows change in accordance with your chosen material. However, we’ve got over 200 RAL colours to choose from. Plus, if you’d like a different finish for the interior and exterior framing, which is known as a dual colour option, we have this available too.

BlackRosewoodGolden OakWhiteCreamAnthracite GreyBlackAgate GreyOlive GreyRosewoodNatural WoodNatural OakCreamWhite GrainSmooth WhiteCreamNatural WoodNatural Oakblack RAL colourAny RAL Colour

Enjoy a more comfortable home for less

Replacing old windows is a great way to improve your home’s thermal performance, especially when opting for our casement windows. They come equipped with the latest glazing and are fitted to the highest standards, ensuring for a weather-tight fit every time.

uPVC and timber are both natural insulators whilst our aluminium casements come fitted with polyamide thermal breaks. These work to reduce heat transfer to the outside of your home, so your home will always feel cosy whilst heating costs will be lowered.

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White Eurocell casement window
Timber casement windows on a cottage

Long-lasting home security

Flush casement windows from us are secured around their frames by multipoint locks, although we also fit a range of alternative security hardware from Yale, Winkhaus, Maco and other manufacturers at the pinnacle of the industry.

We’re so confident in the quality of the materials we use in their construction too that we offer comprehensive 10-year guarantees on all our casement windows. So, you can enjoy a secure home for many years to come.

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Windlesham Conservatory & Orangery Showsite

Lavershot Barns, London Road (A30), Windlesham, GU20 6LL

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Farnborough Window & Door Showroom

135 Lynchford Rd, Farnborough, Hants GU14 6HD

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Timber windows showroom in Hartley Wintney interior

Timber Windows of Hartley Wintney Showroom

High Street, Hartley Wintney, Hook, RG27 8NY

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