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High quality uPVC & Timber Sash Windows

Our modern sash windows combine 21st-century technology with classic styling. Available in high-performance uPVC or timber, their vertically-sliding sashes allow for convenient ventilation of the home.

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Bygone white sash 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.

Sash Windows Materials include Timber and uPVC

Timber is the traditional material of choice for vertically-sliding windows. However, we install uPVC sash windows too. These sash window materials have different qualities, although you can expect beautiful looks and exceptional performance regardless of which you prefer. Click on the links below to learn more about each sash window material choice.

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White Eurocell uPVC window


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

White timber bay window


Timber sash 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

Whether you prefer uPVC or timber sash windows, we have a wealth of colour options available to suit all visual requirements. We also have opaque, translucent and woodgrain finishes. 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 OrangeryCream OrangeryWhite OrangeryNatural Wood OrangeryRosewood OrangeryWhite Grain OrangeryNatural Oak OrangeryAgate Grey OrangerySmooth White OrangeryBlack OrangeryAnthracite Grey OrangeryOlive Grey OrangeryAny RAL Colour Orangery

uPVC Sash window security

Thanks to fully reinforced steel sashes, they are capable of achieving ‘Secured by Design’ certification, an official police-approved scheme to ‘design out crime’. Combined with our robust hardware and multi-point locking systems, the security our uPVC sash windows provide for your home is truly outstanding.

uPVC Windows
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Eurocell Sash Window

Energy Efficient uPVC sash windows

uPVC sash windows prevent heat loss thanks to an innovative multi-chambered window profile that is designed to trap heat inside the home whilst keeping the cold out. When installed with our high-quality double glazing, they ensure your home is warm and inviting. You will also notice your energy consumption decrease (and your energy bills)!

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Wood effect uPVC Sash windows

Our uPVC wood effect sliding sash windows accurately replicate traditional timber joinery techniques for an authentic sash window appearance. The intricate details of our wood effect uPVC windows add the perfect finishing touch to your replacement sash windows. However, they offer a maintenance-free life, exceptional durability, better security, and other performance benefits associated with high-quality uPVC. With a plethora of colours to choose from, we can install black sash windows to create a striking feature on your fa├žade or grey sash windows for a more neutral effect.

Modern black home improvement ideas to inspire you!
White sash bathroom window
Bygone white sash window

Enjoy the timeless charm of timber sash windows

Find the perfect fit for your home with our timber sash windows. As timber sash windows offer excellent natural insulation, they ensure that the rooms in your home will feel a comfortable temperature whilst you can expect lower heating bills too. Timber is also incredibly solid, so forced entry to your home will prove very difficult.

We strictly use high-quality timber from sustainable sources, meaning their weather resistance is incredible. With only minimal upkeep and a recoating every 5-7 years, they’re easily capable of lasting as long as a lifetime. So, they offer exceptional long-term value.

Timber Windows

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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Bank Holiday Opening Hours

Bank Holiday - We will be closed on Monday 27th reopening on Tuesday 28th May, with the exception of Windlesham which is open 10 -4