Evolution Storm Casement windows

Evolution Stormproof Windows combine robust weather protection with the refined aesthetics of timber windows. Designed with an overlapping sash that sits proud of the frame. Crafted from low-maintenance timber-effect uPVC, they deliver the timeless appearance of wood without the upkeep. With energy-efficient glazing, advanced security features, and a wide choice of finishes and hardware, Evolution Stormproof Windows provide the perfect blend of performance, durability, and heritage-inspired design.

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Storm 2 Window

Evolution Stormproof and Flush Casement Windows can be specified with beautifully crafted astragal bars. These decorative glazing bars sit on both sides of the glass, authentically recreating the look of individual panes found in original timber windows. Available in a range of styles and configurations, astragal bars add architectural character and period-correct detailing—perfect for Georgian, Victorian, or cottage-style properties. Combined with timber-effect finishes and mechanical joints, they deliver a truly authentic appearance with all the benefits of modern window technology.

Evolution Storm2

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