What is the difference between flush and casement windows?
Choosing the right window style can make a remarkable difference to both the appearance and performance of your home. With so many designs available, it is easy to see why casement windows and flush casement windows remain two of the most popular choices for UK homeowners. Although they look similar at first glance, the difference between flush and casement windows becomes clear once you understand how each design works, how they sit within the frame and what type of property they best complement. This extended guide breaks everything down in a clear, friendly way so you can compare both options with confidence and decide which is best for your home . What are flush casement windows? Flush casement windows are a modern variation of the classic casement design. The defining feature is the position of the sash. When the window is closed, the sash sits perfectly level with the outer frame. This creates a smooth, flat, streamlined surface with no protrusion and no lip. The result is a cle...