High Fix or Casement Fix Windows

Both are non-operable fixed windows built on the Classic Series platform, but they serve different applications. A high fix is designed specifically for clerestory or high-wall installations — its frame geometry is optimized for positions where access to the glass is not required for operation or cleaning. A casement fix uses the casement sash cross-section in a fixed configuration, which means it visually matches adjacent operable casement windows in a combination assembly. Use a casement fix when the window needs to look like the operable casements beside it; use a high fix for standalone clerestory applications.

Operable windows have moving parts — weatherstripping, sash tolerances, and locking mechanisms that must allow for movement. Even high-quality operable windows have slightly more air leakage potential at those joints than a well-sealed fixed unit. A fixed window has no sash-to-frame movement gap, so the glass and frame system can be sealed more tightly. This is why fixed lite U-factors are often lower than operable equivalents at the same frame size and glazing package.

Yes. Window Force casement fix and high fix units are built on the Classic Series platform and are compatible with the mullion systems used for combination assemblies. A typical combination might include a wide fixed centre lite flanked by operable casements, or a horizontal ribbon of alternating fixed and operable sliders. The visual profile of the frame is consistent across the assembly, which maintains a uniform appearance.

Yes. Fixed windows can be specified in non-rectangular geometries including radius heads, arched tops, and other custom shapes. Casement fix units are available in the standard rectangular format; high fix units support a wider range of custom geometry. Complex shapes are manufactured at the Vaughan facility to the exact dimensions of the rough opening.

Yes. Both high fix and casement fix windows support double-pane (13/16″) and triple-pane (1 5/16″) glazing. Triple-pane in a fixed configuration delivers some of the highest thermal performance available in the Classic Series — U-factors in the 0.83 to 0.98 range depending on the glazing package.

High fix windows are specified in commercial and residential projects where daylighting above the furniture or counter line is the objective. Common applications include clerestory rows above a continuous ribbon of lower windows, stairwell walls where a high fixed lite brings light down the staircase, great rooms with cathedral ceilings, and any space where a high window position is needed for privacy, daylight, or solar heat gain from a specific elevation.

All fixed window configurations are manufactured at our 80,000 sq ft facility in Vaughan, Ontario, and shipped to dealers and projects across Canada, including markets in Halifax, Moncton, Montréal, Québec City, Winnipeg, Regina, Saskatoon, Red Deer, Kelowna, and Victoria.