uPVC & Aluminium Flush Casement Windows across Surrey

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, this window style also makes a perfect addition to modern homes with its 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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Flush Sash Casement Windows in a Range of Materials across London

We offer flush sash 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

uPVC Flush Casement 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 Flush Casement Windows

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 Flush Casement Windows

Traditional 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 Range of Colour Finishes

The colour choices we have available for our flush casement windows change in accordance with your chosen material. However, we’ve got over 200 RAL colours to choose from for your window frames. 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.

Black OrangeryRosewood OrangeryGolden Oak OrangeryWhite OrangeryCream OrangeryAnthracite Grey OrangeryBlack OrangeryAgate Grey OrangeryOlive Grey OrangeryRosewood OrangeryNatural Wood OrangeryNatural Oak OrangeryCream OrangeryWhite Grain OrangerySmooth White OrangeryCream OrangeryNatural WoodNatural Oakblack RAL colourAny RAL Colour Orangery

Energy Efficient Flush Casement Windows

Replacement windows are a great way to improve your home’s thermal efficiency, especially when opting for our high energy rated flush casement windows. They come equipped with the latest glazing and are fitted to the highest standards, ensuring 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 giving you energy saving benefits.

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White Eurocell casement window
Timber casement windows on a cottage

Long-lasting home security ensured with Flush Sash Windows

Flush casement windows from us are secured around their frames by multipoint locking systems, 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 window design and 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 and peace of mind for many years to come.



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Premium uPVC Flush Casement Windows to boost your homes curb appeal

Step into a realm of elegance and functionality with our uPVC flush casement windows. These windows feature a sleek and flush design, seamlessly integrating into your home’s aesthetic for a timeless look. Crafted from durable uPVC material, they provide not just visual appeal but also resilience against the elements, ensuring longevity and low maintenance for homeowners.

The flush design not only adds sophistication but also enhances energy efficiency, contributing to a comfortable indoor environment and potential cost savings. Elevate your home with the perfect combination of style, durability, and practicality offered by our uPVC flush casement windows, creating a space that not only looks stunning but also functions seamlessly for years to come.

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White flush casement windows
White flush casement windows

What are flush casement windows?

Flush casement windows are a flat looking window that look sleek and modern. This style of window looks elegant and timeless. Unlike other windows, they do not overlap the frame and are outward opening.

Are flush casement windows good?

Flush casement windows are very popular because they are secure, energy-efficient and look beautiful. They come in a range of colours and materials making them good for every home and taste.

Do flush casement windows leak?

No flush casement windows do not leak. Flush casement windows have an additional layer of sealing which keep the wet weather outside and prevent it from leaking into your home. The seal along with professional installation ensures a weatherproof window.

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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

55 High Street, Hartley Wintney, Hook, RG27 8NY

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Timber Windows of Sunningdale Showroom

2 Broomhall Buildings, London Road, Sunningdale, SL5 0DH

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