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The Pro Series blends proven precision with a slightly finer vinyl profile compared to other NBP series, for increased visibility. Paired with the latest thermal technologies offered in our energy packages, Pro Series windows immediately come to mind as a strong go-to product for any project.

100% virgin vinyl 100% Virgin Vinyl

Maintenance-free frames, with fusion welded corners for increased structural integrity, exceeds the strength of ordinary designs.


Insulated glass with U-Spacer unit utilizes patented intercept technology.

Extruded Lift & Pull Rails

Built directly into sash for greater durability. No added or snap-in components.

Heavy-Duty Lock

One simple, smooth hand turn; heavy-duty cam-action lock of die cast zinc.

Deluxe Dual-Ventilation Latches

Limit the window opening to a set point during ventilation.

Tilt Latches

Both sashes tilt in easily for safe, fast cleaning from inside the home.

Stainless Steel Constant Force Balance System

Provides smooth and effortless operation.

Half Screen with Aluminum Frame

BetterVue screens are fiberglass mesh and extruded aluminum frame, featuring increased strength and improved visibility compared to standard screens.

Double Weatherstripping

Our draft-resistant double weatherstripping provides UV protection, helps resist mold, mildew, and fungus, and prevents dust, light, noise, and air infiltration.

Aluminum Reinforced Interlocking Sashes

Aluminum reinforced, interlocking sashes provide increased strength where sashes meet.

Double Pane Clear Glass

Standard throughout this series.