What Are Sash Windows?


Sash windows are a cornerstone of traditional residential architecture. It’s a window with a vertical opening and two framed window sashes. These sashes sit in front of each other, creating a sliding mechanism. The vertical grooves mean it’s easy to move the sashes up and down without the frames rubbing against each other. Sash windows are a popular choice for traditional and modern buildings, adding a charming touch to any residential property.


We offer our sash window services, including repair and maintenance, across the South London and Kent area. Whether you’re considering investing in sash windows or want to know a little more about your home, we’re covering everything you need to know about sash windows.


Benefits of Sash Windows


One thing that attracts people to sash windows is their traditional English charm. They had a timeless touch to any property and are often called “the eyes of the façade”. Whether you have a quirky little cottage or a modern build, you can incorporate sash windows into your home. If your home is in a conservation area, or if it’s a listed building, sash windows may be a requirement. Sash windows are often referred to as ‘heritage windows’, as they maintain the traditional look of the building.


The sliding mechanism of sash windows means you can open both the top and bottom of the window at the same time for better ventilation. The convection flow of air from the window will keep your room cool during the summer while also helping to remove dust. If you’re someone who suffers from allergies, sash windows are the perfect choice for your home.


Types of Sash Windows


Not all sash windows are the same. As architecture design evolved, the shape and look of sash windows did as well. Sash windows were popular between the Georgian and Edwardian era before their recent resurgence in home design. With architects and homeowners looking to the pass for inspiration, it’s no surprise that sash windows are having a revival. 


There are four main types of sash windows for you to choose from, whether you’re imitating a particular era or want to incorporate them into a modern build.

Georgian sash windows are nicknamed ‘six over six’ as each unit has six panes of glass, as Georgian glasswork focused on smaller glass panes.


As glasswork evolved, Victorian sash windows were developed with larger panes of glass. These sash windows have a ‘two over two’ designThe two glass panes are joined by a vertical glazing bar. If you want the best of both worlds, you can consider the Edwardian sash window, which has a ‘six over two’ design. A rarer style of sash windows is the ‘Yorkshire Sliding’ style, which slides horizontally with a ‘one over one’ design.


If you want to get the most out of your sash windows and improve their lifespan, it’s important that you repair any issues and invest in regular maintenance for the glazing bars. At Box Sash Window Repairs, we offer repair and refurbishment services across South London and Kent. You can get in touch by calling us at 07415 390160 or by emailing us at [email protected]