Black Aluco Elegance windows with Astragal

Casement Windows in Hampshire, Surrey, Berkshire & South-West London

Casement windows are the standard window of choice for the majority of UK homes. They feature an outward opening design and are available in various materials and colours to suit individual requirements. As trusted casement windows installers throughout Surrey & London, you can be rest assured with a Sherborne Windows installation.

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White Evolution casement window

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 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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White Eurocell uPVC window


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.

Aluk 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.

White timber bay 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.

Black OrangeryRosewood OrangeryGolden Oak OrangeryWhite OrangeryCream OrangeryAnthracite Grey OrangeryBlack OrangeryAgate Grey OrangeryOlive Grey OrangerySmooth White OrangeryWhite Grain OrangeryCream OrangeryNatural Oak OrangeryNatural Wood OrangeryRosewood OrangeryCream OrangeryWhite OrangeryGrey OrangeryBlack OrangeryAny RAL Colour Orangery

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
Yale multipoint window locks

Long-lasting home security

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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Revitalize your Hampshire home with our exceptional uPVC Casement Windows

Discover the perfect marriage of elegance and functionality with our uPVC Casement Windows. Featuring a versatile hinged design, these windows open outward, providing exceptional ventilation and unobstructed views. Crafted from durable uPVC material, these windows offer a winning combination of strength, weather resistance, and low maintenance, ensuring long-lasting performance for homeowners.

Beyond their aesthetic appeal, uPVC Casement Windows excel in energy efficiency, creating a comfortable indoor environment while reducing utility costs. Elevate your home with the enduring style and modern practicality of our uPVC Casement Windows, offering a seamless blend of sophistication and functionality for their living spaces.

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Timber casement windows on a cottage

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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