Fiberglass Windows

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Milgard Ultra Series fiberglass windows and doors

Advantages of Fiberglass Frames

• Extremely strong—can hold large expanses of glass
• Low maintenance
• Paintable
• Energy efficient

Ultra Fiberglass Windows

Fiberglass frames are essentially composed of glass fibers and resin, materials that expand and contract very little with temperature changes in the weather. Fiberglass windows and doors resist swelling, rotting, and warping. The frame expands and contracts at approximately the same rate as the insulated glass it holds for improved energy efficiency and strength. While fiberglass frames do not require repainting for upkeep, the material can be repainted if you prefer to change colors.

Ultra™ Series Windows

The Ultra™ Series from Milgard is our contemporary premium fiberglass window and patio door line that is strong and built to last. The fiberglass material resists swelling, rotting, and warping making it the perfect choice for long-lasting durability coupled with exceptional beauty.


  • Fiberglass frames are resistant to temperature fluctuations making them a durable, low maintenance choice
  • Window hardware is attractive, secure, and easy to operate
  • Four exterior frame colors to enhance the look of your home
  • Use Black Bean or Bark to create the popular dark window look with matching interior and exterior frames
  • A Full Lifetime Warranty that includes Glass Breakage coverage

Your style envisioned. Ultra™ Series fiberglass windows offer the performance and energy efficiency you want combined with a contemporary style that creates a visual impact. With four exterior frame colors and five window hardware finishes, you can create the perfect look to elevate and add value to your home.

Milgard brings you the latest in modern style for your home. Ultra™ Series windows and patio doors can help you create the popular dark window look with matching interior and exterior frames in Black Bean or Bark. If you are designing a home with a contemporary aesthetic, Ultra Series is for you.

Design your fiberglass windows with function and style at the top of your list. For rooms, such as the bathroom, we offer obscure glass for privacy or decorative flair. We also have tinted glass for additional shading from direct sunlight.

For a long-lasting contemporary look, Milgard Ultra™ Series fiberglass windows and fiberglass patio doors are a great option for your home. Contact the nearest Dick’s Rancho Glass for professional installation today.

“Fiberglass Windows & Doors.” Fiberglass Window Frames & Vinyl Door Frames | Milgard Windows & Doors. N.p., 2015. Web. 12 Jan. 2017