Ameristar Windows & Doors Onyx Collection offers high-performance vinyl patio doors designed for the extreme temperatures and sun exposure common across Southern California. With a sleek black profile and engineered stability, these doors combine energy efficiency, durability, and aesthetics into a single upgrade. Proudly serving homeowners across Los Angeles, Orange County, San Diego, and the Inland Empire.

  • Sliding Door
    Sliding Door

    Smooth glide, big views, low upkeep.

  • Swing Door
    Swing Door

    Classic hinge action with a tight, secure close.

Designed for Southern California Heat

Unlike standard vinyl patio doors, which often soften or warp at lower temperatures, the Onyx Collection is built to perform at temperatures up to 200°F. This ensures stability on sun-facing walls, keeping the frame aligned, the panels on track, and the seals tight even during peak summer heatwaves.

This high-temperature resistance provides long-term reliability and smooth operation year-round.

Engineered for Structural Stability

Ordinary patio doors can expand, shrink, or warp due to ongoing exposure to heat and moisture. The Onyx Collection is dimensionally stable, helping prevent misalignment, drafts, and sticking. Hardware remains aligned, movement stays smooth, and the overall system retains its integrity season after season.

A Modern Finish That Lasts

The Onyx Collection features a deep black finish integrated into the vinyl, which is not painted on. This formulation resists UV degradation and fading caused by temperature swings, allowing the doors to maintain their crisp, contemporary appearance over time.

This finish pairs well with modern and transitional home styles, offering curb appeal without the maintenance that painted frames require.

Energy Performance and Certifications

The Onyx vinyl patio door system can be configured to meet NFRC and Energy Star 7.0 requirements, one of the strictest energy efficiency standards in the country. These doors improve indoor temperature control and reduce heating and cooling costs. Profiles are tested and certified under ASTM International and AAMA structural and weather-resistance standards.