Traditional uPVC Sliding sash windows

  • Allows for excellent levels of ventilation throughout your property
  • Will complement your home's style whilst maintaining its character
  • Achieves traditional details of timber sash windows with all the benefits of modern uPVC
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Sliding sash windows infuse traditional aesthetics
with modern performance

Our sliding sash windows deliver the perfect way to retain your home’s traditional character with all the advantages of 21st-century technology. Comfortably replacing a wide range of vertical sliders with ease, our expertise stretches to splay, box bay, arched and swept head sliding sash windows.

Delivering all the original features, including astragal bars, sash horns, and traditional style hardware, sash horns were originally used to support the glazed panels. Our sash horns, although decorative, faithfully replicate the traditional period aesthetic. Georgian bars were also used to separate the glazed sections. Our external Georgian bars are attached to the exterior of the windowpane to create a realistic interpretation. Alongside the period detail, they are glazed with argon gas filled ‘A’ rated sealed units for the ultimate thermal efficiency.

Sash window finishes and features

Replicate the look of timber box sash windows with your choice of finish, whilst tastefully reproducing the original look with white or cream. Or for a more natural finish, we have a range of realistic woodgrain effect coatings which are durable, attractive, and easy to maintain.

Alongside your choice of frame colour and style, the type of glass you choose can make a huge difference to the overall look of your sash windows. Clear glass is the most popular choice, but if you want something a bit different, at Global Windows we have a range of glazing options. Choose from our selection of obscure glass for extra privacy or, if safety is your main concern, opt for toughened safety glass.

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  • Colour
  • Features
  • A-rated
  • Security
  • Glazing
  • Blogs
  • Colour

    Our sliding sash windows are available in 13 standard woodgrain colourways. By choosing a woodgrain foiled finish you are able to bring your windows to life with a glossy, freshly painted, realistic timber effect.


    At Global Windows, our products have a wealth of high-quality features. When it comes to choosing the best windows, doors, and glazed extensions, you really are spoilt for choice. From glazing to frames, we offer an array of options on our entire product range.

    • Argon gas filled sealed units
    • Vertical sliding sash function
    • Excellent U-values
    • ‘A’ WER (Window Energy Rating) as standard
    • Sash lifts to open and close the bottom sash
    • Pole eyes or D handle to open and close the top sash
    • Inward tilting function for easy cleaning access from inside the home
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    White uPVC Sliding Sash Windows


    Energy efficiency is an important consideration for all homeowners. We all want to reduce our carbon footprint and help to protect the environment for future generations. There are many ways to do this, by regularly recycling and reducing our waste. You can also help by choosing the most energy-efficient products for your home improvement projects.

    All our sash windows are ‘A’ rated for energy efficiency as standard and can even reach 'A+' ratings, helping to create a warmer home and save you money on reduced heating bills.

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    A Rated windows and glazing


    Home security is perhaps the most important factor when you want to improve your home. At Global Windows, we share your concerns which is why we never compromise on the safety and security of our products. When we design our products, they undergo rigorous testing to ensure they meet the high-security standards that the industry demands.

    All our sliding sash windows are fitted with high-security key lockable sash locks, which secure your windows at the top and bottom of the frame. In addition to this, we also offer the option of a fire egress window design to provide an emergency exit.

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    Highly secure sliding sash locks


    The type of glazing you choose for your windows, doors, and glazed extensions will have a massive impact on the overall look and feel of your home. Whether you live in a modern or period property, a large or small home; we can offer expert advice on the best type of glass to complement the style, character, and time period your property was built.

    Choose from a range of glazing to meet your requirements. We install obscure, stained, diamond and square leaded, Georgian bars, and bevelled glass. We also install windows with toughened safety glass.

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    Planitherm Installer Network