Versatile uPVC Casement Windows, Fitted throughout Southampton and the Surrounding Areas

Looking for more efficient windows? Itchen Glass & Glazing supplies and fits uPVC casement windows from Liniar, throughout Southampton, Hampshire, and the surrounding areas. With slim sightlines to let in maximum light and a unique double-action bubble gasket to eliminate draughts, this versatile option is the most popular choice for homes throughout the UK. Get in touch today for more details about our innovative, weather-proof, and cost-effective windows.

Why Choose uPVC Windows?


  • 100% Lead-Free uPVC Frames

  • Manufactured in Britain

  • Thermally Efficient Multi-Chambered Profile

  • Cost-Effective Energy Savings for Homeowners

  • A+12 WER (Windows Energy Rating) for Double Glazing

  • U-Value from 0.8 W/m²K for Triple Glazing

  • Environmentally Friendly Design, Fully Recyclable at End of Life

Types of Windows

Our casement windows are available with sculptured (curved) or chamfered (bevelled) 70mm profiles (frames), with either 28mm double or 36mm triple glazing. Furthermore, Liniar uPVC casement windows can be internally or externally beaded.

Options from Liniar include the standard 4-chamber profile, which offers supreme energy efficiency, or the EnergyPlus 6-chamber profile, which delivers A+ WER with ease. Both types have a wide array of colours, finishes, hardware, and glazing options to choose from.

Bespoke Configurations

We pride ourselves on our bespoke supply and installation services. Our traditional-style casement windows are available in a variety of configurations, including:


  • Top or Side Hung

  • Arched Top

  • French Window Fire Escape

Furthermore, you may wish to fit mock sash horns for the appearance of traditional vertical sliders or add character with astragal bars or Georgian bars. For more information about Liniar windows, please visit

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Installing uPVC Windows

Our energy-efficient uPVC casement windows provide exceptional value for money.

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