Performance Line series:

Unleash your design vision with Western Window Systems Performance Line. Energy-efficient, strong, and available in taller and wider sizes. Let your project reflect your creativity without limitations.


    • Optimal performance, flexibility, and versatility
    • Industry-leading U-factors for energy efficiency
    • Narrow sightlines for a sleek and modern look
    • Capability and flexibility for seamless integration
    • Large sizes for expansive views and natural light
    • Low U-values for energy efficiency
    • Heavy-duty hardware for durability and security
    • Customizable options to suit your preferences

Available Styles

  • awningAwning
  • bowBow
  • bay-&-bowBay & Bow
  • bayBay
  • casementCasement
  • single-sliderSingle Slider
  • double-sliderDouble Slider
  • single-hungSingle Hung
  • double-hungDouble Hung
  • picturePicture
  • geometricGeometric
  • otherother
  • gardenGarden
May - Special Offer
Vinyl Windows
50% Off

for Limited Time!
Staring from $598


per window

Vinyl Window

* Restrictions and conditions apply. Offer not available in all areas. Advertised discounted price, requires purchase and installation of 7 or more windows. Offer discount is calculated based on lowest priced window product. Cost of installation is excluded from the Offer. Minimum job size is 4 windows.