Ultimate Rose

The Most Authentic Timber-Alternative Sash Window

The Ultimate Rose sash window is the pinnacle of timber-alternative design, featuring an ultra-slim 35mm midrail, true mechanical joints, and seamless construction. Its deep bottom rail, putty-line detailing, and optional finishes ensure an authentic timber appearance, making it indistinguishable from the original—even in conservation areas. The window’s seamless technology and precision-crafted features, such as run-through sash horns and traditional joinery techniques, replicate the aesthetics of classic timber frames.

Inside, Ultimate Rose combines period charm with modern technology. Optional features like a removable staff bead and matte finishes enhance authenticity while improving functionality.

Customisable options include seahorse sash horns, concealed trickle vents, deep cills, and a chalk matt finish, offering unparalleled versatility.

With exceptional thermal efficiency, sound insulation, and zero maintenance, Ultimate Rose delivers timeless elegance and contemporary performance, perfect for period properties.