Unison Windows and Doors combines over thirty years of millwork excellence with precise European machinery to produce unrivaled window and door connections that fit seamlessly into your new or existing structures.

Mullions are fixed to the frame with a wood-to-wood dovetail joint in order to effectively transfer loads and ensure stable, tight connections.

Frame corner joints are rabbetted, sealed with silicone and fixed with 2″ stainless steel fasteners.

The main frames are constructed from a single jamb wrapping continuously around the window providing consistent grain and matching color.

Sash corners are connected with a finger-jointed mitre, glue, and stainless steel screws to prevent separation or leakage in even the harshest climates.

Sashes are milled with an outer lip, which overlaps the frame by ¼” in order to provide an initial climate barrier. The sash-to-jamb joint is further protected with an outer perimeter fin-seal on the sash, as well as a hollow-bulb weather-strip at the inner joint.