Single-hung Window


C-Sky Radiance serials single-hung windows offer homeowners ease of operation, reliability and a beautiful appearance.

The windows open by lifting the bottom sash.The sash slides up and overlaps the top panel, which is fixed in place. Because your single-hung windows open up and down instead of out, they don’t take up exterior space when open. This makes them ideal for areas like adjoining walkways, porches, patios and other high-traffic areas.

C-Sky Radiance serials single-hung windows offer the exceed every industry security standard for forced entry, and our high-quality balance spring system allows for simple, seamless operation.


  • Energy-efficient insulated glass reduces heating and cooling costs while keeping your home warm in the winter and cool in the summer
  • Durable multi-chamber designed fusion-welded frame for reliable structural performance and makes low maintenance cost
  • Dual weather stripping creates a weather tight seal
  • Fusion-welded frame for reliable structural performance
  • Low maintenance. Durable high quality vinyl will not chip, peel or fade, no painting needed.
  • Flat exterior frame convenient for lap siding or brick construction
  • The bottom sash operates
  • Custom sizes available