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Casement windows - Bespoke sizes

Jeld-wen wooden casement windows are available direct from the factory in all the current styles. Wooden stormsure casement windows are now available in both standard and bespoke sizes. Please select your window type.

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Stormsure Casement Windows

Available in engineered softwood or Oak, with A+ rating, Uvalue between 1.3 – 1.6. Frame section size 93mm, front to the back of the head. Cill sizes of 93mm stub cill, 133mm, 158mm Standard, 183mm or 208mm. All windows now available with espagnolette multi point locking system, projection hinges and improved ironmongery. Safe clean projecting and fire egress hinges are optional if the size permits. The standard products come with Pilkington 24mm Low Emissivity insulating double glazed units with an option for 36mm triple glazing. Spacer bars for the glazing unit are Black as standard with options for white or grey. All  come with a recessed flush fitted trickle vent, colours available are white, brown, grey and conservation green. wooden conservation windows, wooden sliding sash windows,

Buying your wooden casement windows online

Before you commit to buying timber windows online, please ensure that you have measured your openings correctly and noted the external dimensions in millimetres. Please take as many measurements as possible and order to the minimum measured width and height. Jeld-wen stormsure casement windows should be ordered to the brickwork opening size and are automatically reduced by 5mm in width and height to ensure a good fit. Once you have selected the style of window you require, please note that all the windows are viewed from the outside and the arrows point to the position of the hinges. Enter your dimensions into the fields for the width and the height and complete the rest of the calculator to produce your price.

Window Performance

Jeld-wen wooden stormsure casement windows meet the requirements of BS6375:Part 1 :2009 Performance of windows and doors. The windows achieve and exposure rating of 2000pa, and air permeability rating of class 4. The acoustic performance of the windows are available to 37db and secure by design specifications are available on request. PAS 24 specification options to meet the requirements of Approved Document Q are available on request. BRFC energy rating of A with a Uvalue of 1.3W/m²K.

Window Finishing Instructions

If you prefer to finish your new windows yourself and select either a primed or basecoat stain finish, you should be aware that Jeld-wen recommends you apply further coats of undercoat and top coat immediately after delivery. Care must be taken not to paint over any form of weather-stripping as this will affect the performance. Any surfaces that require cutting or trimming should have a preservative coating applied and then re-painted – especially ends with exposed grains.

Regular maintenance of your windows will ensure their long-term performance. At least twice a year the windows should be inspected for any damage caused by the weather or in the main window cleaners with ladders. This damage should be dealt with quickly by sanding down the top coat and apply coats of primer and top coat to ensure protection from moisture. Regular cleaning with a mild detergent and soft cloth will also help maintain the windows. Please ensure you check for any blocked drainage holes or blocked channels – use a pipe cleaner or a soft flexible brush to remove any objects.