Casement Windows

Versatile UPVC casement windows

Casement windows remain a popular choice for many homeowners.

Their design includes a subtle ‘lip’ on the opening sash, so you can usually tell from the outside of a property, which of the sashes opens and which remains fixed. To maintain a balanced appearance, we can also install bespoke windows with a ‘dummy sash’ that mirrors an opening window, so you can achieve a clean, symmetrical finish.

Every window is made bespoke to your design and sizes, allowing you the freedom to choose between a sleek chamfered profile for a contemporary look or a decorative sculptured profile to complement traditional homes.

Highly secure casement windows

Our UPVC windows are fitted with multi-point locks and lockable handles to offer peace mind; this makes them highly resistant to forced entry. The robust frames and durable hardware mean your windows not only look great but also provide a strong barrier against intruders.

For added reassurance, our casement windows can be opened slightly for natural ventilation while remaining securely locked in position, allowing you to move freely around your home. High-quality weather seals ensure a tight fit, helping to prevent draughts, reduce external noise, and further strengthen the overall security and performance of your home.

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Energy Efficiency

Modern UPVC frames incorporate a multi-chambered construction which provides excellent insulation to keep warm air inside during the winter and cool air inside during summer.

Thanks to modern profile technology, every UPVC casement window is made using advanced technology to ensure excellent thermal performance, minimal maintenance, and long-lasting energy efficiency. When double glazed, our windows achieve a U-Value of 1.46 W/m²K.

Available in a wide range of styles, finishes, and colours, UPVC casement windows can complement any home design, from traditional cottages to contemporary townhouses. Their versatile design allows for large panes of glass, which maximises natural light and creates a bright, welcoming atmosphere inside your home.

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Benefits of casement windows

One of the advantages of UPVC casement windows is their exceptional durability. Manufactured from high-quality materials, they are built to withstand the elements, offering excellent weather resistance while remaining leak-free and structurally strong over time. Maintenance is simple and, a wipe with a warm, soapy cloth is enough to keep them looking clean and operating efficiently.

UPVC casement windows are a practical, stylish, and sustainable solution for modern homeowners seeking long-term performance. In addition to their impressive energy efficiency, the frames are fully recyclable, making them an environmentally responsible choice.

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Features and options

Wide range of colours, including a different colour inside and outside
Choose a top or a side opening sash
Multi-point locking
Traditional or contemporary handle design
Low U-Value 1.46 W/m²K
Designs can meet PAS 24 security
Bow and Bay windows available
Mock sash horns
Horizontal or Vertical Georgian bars fitted on the inside or outside
Arched and circular frames

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FAQ’s

What is the difference between a casement window and flush windows?

Casement windows have a subtle ‘lip’ on the outside of your windows, whilst flush windows are flush with the external frame. Both are extremely energy efficient and secure. At Chiltern Doors, we can install either design in your property.