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Timber Casement Windows

Our timber casement windows are designed to provide authentic aesthetics while boasting all the benefits of modern developments. Made with high quality at the heart of the manufacturing process, this popular window style is the perfect choice for your home.
  • Range of different styles to cater for specific requirements
  • Efficiency blended with security for all-round performance
  • A varied choice of finishes, colours and hardware to appeal to all
  • Four timber species to choose from
  • Range of traditional hardware to maintain an authentic look

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Bespoke timber conservatory
Timber french doors available from Dempsey Dyer
White timber window with Georgian bars
Traditional flush sash window for traditional property
Timber mock sash windows
Timber Stormproof windows

One of our timber flush sash windows

Flush Sash

Retaining the original design of timber windows, our flush sash casement windows provide an appealing aesthetic that perfectly blends in with any home.

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One of our timber mock sliding sash windows

Mock Sliding Sash

With the same features and effectiveness of our traditional stormproof casement windows, these resemble traditional sliding sash windows without a movable pane.

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One of our timber stormproof windows


Our standard casement windows, these are perfectly designed for homes in more challenging environments. These windows have an attractive exterior while still weatherproofing the home.

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Become an Inspire installer

Inspire your customers with the Inspire range from Dempsey Dyer with a dedicated retail website.

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Download Centre

If you want to know more about our products, processes and accreditations, fortunately we offer a range of downloads. Download a range of literature free of charge, to refer to in your own time.

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Installers and other businesses can only work effectively if they have a reliable trade supply service – offering the highest performing products. Luckily, here at Dempsey Dyer we only supply the latest options from market leaders. This guarantees quality, performance and durability – regardless of the product choice.

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