Benefits of Milgard Ultra C650 Series Windows
Fiberglass Frame Strength
Milgard Ultra™ Series windows use fiberglass for maximum strength and weather resistance. This material holds up against swelling, rotting, and cracking—making it ideal for harsh climates and long-term performance.
Exterior Frame Colors
Choose from rich, bold exterior finishes like Black Bean, Bark, or Frost. These durable, UV-resistant colors give your Milgard Ultra™ windows an upscale look that stands the test of time.
Even Sightlines
Consistent sightlines across all Ultra™ Series styles provide a clean, uniform appearance. It’s a thoughtful detail that enhances your home’s design flow and architectural cohesion.
Durability & Energy Efficiency
With fiberglass frames, insulated glass, and thermal spacers, Milgard Ultra™ windows help reduce energy use. They meet ENERGY STAR® criteria and keep indoor spaces more comfortable through all seasons.
PAL or Cam Lock Hardware
Ultra™ windows are available with your choice of Cam Lock or Positive Action™ Lock hardware. Both systems offer smooth, secure operation and are tested to exceed forced-entry requirements.
Lifetime Limited Warranty
Milgard’s Lifetime Limited Warranty covers Ultra™ Series windows for added protection. This Warranty gives homeowners extra assurance and lasting value.
Milgard Ultra C650 Series Windows Operating Styles
Single Hung
Ultra™ Series single hung windows combine the strength of fiberglass with a classic vertical opening style. Only the bottom sash opens, while the top remains fixed — providing a traditional appearance with modern durability. These Milgard windows are ideal for homeowners who want a long-lasting, low-maintenance alternative to wood.
- Fiberglass frame for strength and longevity
- Bottom sash slides vertically
- Classic look with updated materials
- Low maintenance, no warping or swelling
Horizontal Sliding
Ultra™ Series horizontal sliders open smoothly from side to side and feature a narrow frame for expanded views. The fiberglass construction resists swelling, cracking, and fading over time. These windows are perfect for rooms facing walkways or patios.
- Side-to-side sliding sash
- Durable fiberglass frame
- Resists weather and aging
- Ideal where outward-opening isn’t possible
Casement
Ultra™ Series casement windows crank open from the side to allow full ventilation and a clear view. Their fiberglass frame is sleek and durable, offering exceptional resistance to the elements. Great for kitchens, bathrooms, or hard-to-reach areas that need airflow.
- Outward-opening with crank handle
- Unobstructed glass area
- Fiberglass withstands extreme temperatures
- Tight seal for energy efficiency
Awning
Ultra™ Series awning windows are hinged at the top and open outward from the bottom — great for letting in air while keeping out rain. They pair beautifully with fixed windows or work well on their own in smaller rooms. Their tough fiberglass build makes them reliable in all weather conditions.
- Opens from bottom for airflow
- Weather-resistant fiberglass frame
- Clean design with modern styling
- Ventilate during light rain
Picture Window
Ultra™ Series picture windows are fixed and non-operable, designed to maximize natural light and highlight outdoor views. They provide a bold architectural element thanks to their strong fiberglass frame and clean lines. Perfect as standalone features or in combination with venting windows.
- Fixed glass for unobstructed views
- Low-profile fiberglass frame
- Ideal for feature spaces and large walls
- Matches operable Ultra™ windows