The 400 Series Window was engineered identical to the 200 Series with the added value of a Thermal Break Sash and Main Frame. A thermally broken window will stop the heat and cold transfer by up to 50%. The 400 SRS included a limited lifetime warranty on all residential projects. Recycled aluminum and powder coating qualifies these aluminum replacement windows as green products.


  • Block and tackle balance used on single hung for easy sash removal
  • Tru-Seal, DuraSeal spacer used between glass to eliminate seal failure
  • Double weather stripping
  • 9/16″ standard glass thickness on single hung and horizontal sliders
  • Up to 1″ overall glass thickness available on picture windows
  • ¾”Flat, 1” Contoured and 1-1/4” Flat Internal Muntin Options are available in various patterns.
  • Extra wide commercially rated frame provides MUCH GREATER SECURITY AND STRUCTURIAL STRENTH.
  • Continuous sash guides for easy operation
  • Interlocking sash for less air infiltration
  • Take out sash: no tilt keys/latches to break or gouge sheetrock returns as with all tilt sash windows.


  • Performance ratings from LC35 to C50
  • Sloped sill on single hung windows – Not reliant on weep systems like competing competitive products
  • Tested to AAMA standards
  • NAMI-certified and third-party validated in accordance with AAMA protocol

Available Types

Custom shapes, configurations, bays and bows.

Fixed Frame

Single Hung

Horizontal Slider

Available Finishes

White | Sandstone | Bronze

  • Standard colors to meet AAMA’s 2603
  • Custom finishes only available on large quantity orders