TwinSash Windows

This unique window consists of two sashes joined by a deep outer-frame, the result is an air-tight pocket, sandwiched between two thermally efficient sash frames. Available in a large assortment of colours and woodgrain options from the Variations range. It is the only A-rated window for noise reduction.

The clever design of the patented TwinSash outer frame accommodates two sash frames and positions them one in front of the other. Compatible with System10, it requires minimal tooling and accepts all standard hardware. Bevelled and sculptured options are available, with a range of colour choices. It is the only A-rated window for noise reduction.