Main frame has heliarc welded corners for stregnth.

Custom made to exact size.

Available in 13 colors.

Metal slide bolts lock in place every 2 inches.

Cannot be opened from the outside.

Poly-backed fin-type weatherstrip that will not shrink.

Drain holes in both frame and sill expander

Double Hung

The Weathertrapp® system encloses the upper sash in a weatherstripped "pocket" within the frame of the upper window. This creates a non-interrupted weatherstripped pane between the two sashes that significantly reduces air infiltration and is more effective than conventional storm windows.

Charcoal color aluminum screen for better visibility and ridgidity.

• Side Slider - Available in a side slider with all the same features as the double hung plus a support bar at the meeting rail.
• Fullscreen - Specifically designed for porch enclosures, the full screen system allows ventilation from the top, bottom, or both at the same time. Three track convenience with an energy saving design.
• Picture Storm Window - Made from extruded aluminum painted in 13 different colors. Low profile frame is screwed together with a heavy zinc gusset reinforcing corners. Glass is removable from the outside for easy cleaning, Optional screens are also available.
• Basement Storm Windows - Basement storm windows are the most overlooked source of energy loss in a home. A tight storm window can help improve the thermal efficiency of your home and lower energy costs. Glass is removable from the outside for easy cleaning while the screen stays fixed in the master frame.