For pricing, please use the Request a Quote form linked below

For Units >20-25 SF:
● Fixed units from $45/SF
● Operable units from $70/SF

Pricing is an approximation only. Formal quotes will be priced according to drawings and customizations to reflect project-specific demands.

All Optiwin windows are available in Custom Dimensions and Fully supported by 475 for best performing installation detailing (thermal bridges/airsealing).

Product Specifications

The ALLROUND timber-alu series offers cost-effective wood windows and doors with exterior aluminum cladding, durable Roto hardware, available in several wood and finish options. Optiwin creates components as design elements with their own sense of modern architectural expression, with a modern take towards windows and doors.


  • Frame width: 3 11/16" — 4 5/8"(95—118 mm)
  • Gaskets: 4
  • Suitable for low energy and Passive house in most USA climate zones
  • Customizable high or low SHGC
  • Available in spruce (standard), oak, fir, pine, larch, and “reclaimed” wood
  • Options for hardware, insect screens, alu-sills and interior/exterior finishes
  • Foam-free frames insulated with wood fiberboard
  • Exterior finish: available in any RAL ( color of your choice
  • Interior finish: available in a variety of opaque or stained finishes, RAL colors or primed to be finished on-site
  • Options for hardware, insect screens, alu-sills and roller shutters, electric motors
  • Optiwin windows are fully recyclable to avoid waste


  • Customizable high or low SHGC (30-40-50)
  • Uwindow: 0.132 Btu/h ft2 F (0.75 W/m2K)
  • Uglass: 0.088 Btu/h ft2 F (0.5 W/m2K)
  • Super Spacer: 0.016 Btu/h ft2 F (0.028 W/m2K)