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uPVC Stormproof Windows

Our stormproof casement windows are extremely versatile and can work well with all styles of property. Available in a range of opening configurations and styles, the design choice is endless. Appeal to modern homeowners with our range of stylish, high performance uPVC casement windows. Ours is a trade supply service that you can rely on.
  • Choice of Deceuninck 2500 or 2800 profiles
  • Secure guarantee on products that feature MACO locks
  • Tested for durability and use
  • Range of colours and foiled finishes available
  • Choice of Fab & Fix hardware, or 'From the Anvil' ironmongery
  • Exceptional energy efficiency
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

Durable uPVC casement windows

Offer your customers uPVC stormproof casement windows that last. As standard they achieve 500 hours salt spray resistance, which can be doubled for coastal areas. Equally, friction stays enhance corrosion resistance – making our supply of stormproof casement windows suitable for all locations, regardless of weather susceptibility.

Sash Options

Profiles designed to suit a range of property types from modern to traditional

Choose from chamfered profile or decorative profile to achieve a look to suit any type of property.

Chamfered Decueninck uPVC window frame


The Deceuninck 2500 series chamfered profile offers contemporary aesthetics and is more suited to commercial developments, including new build projects.

Sculptured frame Deceuninck uPVC profile


The Deceuninck 2800 series decorative profile provides a traditional appearance that is more suited to residential applications.


High quality colour finishes

We have a wide range of ways for you to allow the consumer to personalise their windows. We offer the choice of woodgrain foils to give the elegance of timber in colours such as Golden Oak and Chartwell Green. These give a professional finish without the maintenance required of timber. Our popular Heritage shades area extremely durable and even allow a different colour on the interior frame. Our popular Heritage (H) shades are extremely durable and even allow a different colour on the interior frame. Our fast-track (F) colours are perfect if you need your windows quicker.


Energy efficient glazing options

Our energy efficient glazing is available in a range of decorative styles which can also maintain privacy. From ripple effects to floral patterns, we can offer a wide variety suitable for all tastes. Leaded glass and astragal bars can also be incorporated into our windows to add some character to a modern home or emphasise a period property’s charm.


High quality hardware options

Our trade supply of Deceuninck uPVC windows also come with Fab & Fix handles as standard, which have been tested for use thousands of times. For more premium applications, we offer the option of ‘From the Anvil’ ironmongery for a more traditional look. From PAS24 espagnolettes to shootbolts, all our locks offer security as well as style.

Efficiency & Security

Casement windows that offer thermal performance to end users

For peace of mind and reduced energy bills, our uPVC casement windows achieve A+ WER ratings and are registered under the BFRC. We can simulate any glazing specification with our windows, making it easy for you to meet end user requirements.

A key selling point of security

To appeal to the most discerning of homeowners, our uPVC stormproof casement windows achieve Secured by Design status, and any product that features MACO locks is backed by their secure plus scheme, which includes a decade of cover, emergency lock breakdown service and a secure key holder scheme.

Our windows and doors feature shoot bolts, mushroom adjustable cams, Fab & Fix handles, reinforced frames and hinge protectors that act as an anti-jemmy solution. With options for lower and higher budget specifications too, security is a selling point guaranteed if you choose our trade supply of uPVC casement windows.

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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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