Upvc & Aluminium Casement Windows Essex & Kent

Double glazed Casement windows are the most popular style of replacement window in the UK – an extremely versatile window that will suit most homes wherever you live. Featuring fixed panes, top opening fanlights and side opening lights, casement windows can be combined to create an array of styles and limitless palette of colours, whilst providing the benefit of noise reduction, low maintenance, safety, security and energy efficiency. Designer Composite Doors are able to offer A rated windows using low e double glazing and multi chambered profiles achieving a U-value of 1.4 W/m2.

We even offer an A+ rating system by upgrading to low iron triple glazed units achieving a U-value of just 1.0 W/m2, meaning each homeowner’s carbon footprint is significantly reduced resulting in lower energy bills per household that undergoes an installation by Designer Composite Doors.

We are able to offer UPVC casement, aluminium odd leg and direct fix casement systems. Whatever your requirements, we can cater for each property’s individual needs.

Designer Composite Doors strive to offer the very latest in innovative designs and thermal technologies by offering the widest range of products on the market to date. We even offer a 5 star £1000 guarantee should the unlikely event of a break in succeed through the failure of one our security guaranteed windows or doors.

You can rest assured you are buying from highly reputable company. We are Certass certified, offer a 10 year guarantee and all of our products meet PAS24 requirements.

Feel free to give us a call to discuss our guarantee in further detail
or for a free brochure.

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Our Entrance Door Ranges


Traditional Style

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Contemporary Design

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Elite Range

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Some of Our Suppliers


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All of these doors are great value for money and we have not compromised on quality!!!!