Vertical Sliding Windows from Clarks Glass

Clarks Glass vertical sliding windows

Clarks Glass modern UPVc vertical sliding windows offer all the modern features of a double glazed window whilst keeping the traditional look and feel of timber sash windows. Ideal for use in areas of conservation. Our vertical sliding windows are highly energy efficient and we offer A rated as standard.

Sash windows from Clarks Glass

Vertical sliding windows slim sight lines and large glass area adds a timeless grace, while the vertical sliding operation means they do not detract from the façade of a building like casement windows, even when they are open. Sash windows offer superb controlled ventilation, better than almost any other window style. They can also be made with opening limiters to prevent easy access from the outside when open.

Our vertical sliding windows have been designed to mimic all the features usually found with timber sash windows, in most cases you can only tell the difference with a close up inspection. Unique hinge mechanisms allow both sashes to slide vertically and swing inwards to give an egress aperture of almost the full window size! Standard frames are hinged on the right when viewed internally. Hinges are finished in white for a discreet appearance.

Genesis vertical sliding windows

Clarks Glass now offer the NEW Genesis VS which features a unique joint, unlike a traditional window, is not welded but mechanically works like a timber window. This new product has been developed using our wealth of knowledge and experience and is a product we're sure you will like.

Traditional styling

The unique joint design to both sash and outer frame replicates a traditionally- made timber window for a truly authentic appearance, setting your windows apart from the rest. Combined with period hardware and a complete range of heritage finishes, the Genesis VS pushes the boundaries of modern PVC-U sliding sash windows. Performance, style and elegance are all at the forefront with this period-feel window.

Our vertical sliding windows colour range

As well smooth white, our UPVc windows are available with a foil finish, which is grained and has the appearance of a wood grained product.

The palette has been carefully selected to replicate the colours that were traditionally used to paint sliding sash windows. You can even choose to have one colour to the outside and a different colour on the inside to complement your interior décor.

All finishes are highly durable and won’t peel, fade or crack over time, so your windows will look as stunning in years to come as they do the day they’re installed.

White woodgrain


Chartwell Green

Dark Oak

Swamp Oak


Irish Oak

Golden Oak

Agate Grey

Hazy Grey

Anthracite Grey

Black Brown


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