Aluminum double hung window

Architectural Grade Premium Double Hung (PDH) windows are specially designed to provide the highest quality results for both retrofit and new construction applications. Muntin grids replicate the look of retro multi-paned windows and are available in a number of combinations.  


  • Narrow profile with thermal break

  • Optional Oriel style windows (shorter upper sash than lower sash)

  • Proprietary key activated tilt-latch system (top and bottom sash tilt into room for cleaning)

  • Caldwell® Ultra-Lift heavy duty balance system allows large and heavy windows to be easily operated

  • Frame depth is 4" with narrow mullion in unified multi-section window combinations

  • 0.75" to 1.25" insulating glass with a variety of options (Low-E, Laminated, Tempered, Obscure, etc.)

  • Bronze or Clear Anodized spacer between the glass

  • Available with surface-mounted and “between-the-glass” style muntin grids

  • Standard and custom panning to match landmark conditions

  • Aluminum-framed (full or ½-height) sliding insect screens with charcoal-colored, fiberglass mesh


  • Performance class AW-PG50 (exceeds requirements for the use in high-rise and mid-rise buildings)

  • Air Infiltration 0.24 cfm/sq. ft

  • More water resistant: water penetration resistance pressure 10.03 psf

  • Better acoustical performance: STC 38, OITC 33 (glass combination: 1/4" Lami, 11/16" argon, 5/16" Lami)

  • Thermally efficient: U-Factor 0.40


PDH windows have a proprietary key-activated tilt-latch system, sweep locks, and keepers with optional color matching sash lifts mounted on the tall bottom rail. Available in the following finishes:

  • White Bronze, Polished Brass, Unlacquered Brass, Polished Nickel, Brushed Nickel, Polished Chrome


Double Hung windows are available in single or two-color options with factory baked-on finishes:

  • Exterior: Bronze, Black, and Aluminum Grey

  • Interior: White, Off-White, and Bronze

  • Custom-painted finishes are also available

We had an excellent experience with Mike Robarge and his team at Panorama Windows. Panorama was professional, responsive and very reasonably priced. Best of all, we were amazed at how much of a difference the new windows made in our renovation!
— Sofia B., 2017