Casement Windows

Ameristar Windows & Doors offers vinyl casement windows that open outward for clear views and strong ventilation. A side-hinged sash and smooth crank make them easy to use over sinks and counters. With tight weather seals and modern frame profiles, casements fit both contemporary and classic homes. If you’re planning vinyl casement window replacement, we’ll size, specify glass options, and install for a precise fit.

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Rated to 200 °F

Onyx casement windows are rated to 200°F, performing at temperatures up to 200°F, well above standard vinyl, typically rated around 162°F. This helps vinyl windows, especially black vinyl windows, keep their shape and smooth crank operation while supporting energy-efficient window performance in hot climates.

Smooth, Precise Operation

The Onyx Collection is engineered to resist window warping from intense heat, direct sun, and moisture. The profile maintains dimensional stability so sashes track true and seals stay tight. Expect smooth operation and reliable energy performance for vinyl windows and black vinyl windows, making it a strong choice for window replacement projects that prioritize energy-efficient windows in hot or high-sun environments.

Long-Lasting Deep Color

The Onyx Collection preserves its deep onyx color under UV exposure, temperature shifts, and changing conditions. Its distinct shade pairs well with many aluminum windows and doors for a modern, upscale look beyond traditional white vinyl. The Onyx profile meets ASTM International and AAMA standards. With qualifying glass, the series also meets the latest NFRC Energy Star 7.0 requirements, recognized as the most rigorous energy efficiency standard in the U.S., supporting strong thermal performance and long-term comfort.

Frequently Asked Questions

What is a casement window?

A casement window has a vertical sash that is hinged on one side and opens outward with a crank, like a door. When closed, the hardware pulls the sash into the frame for a tight seal. When open, the full sash catches the breeze for maximum airflow and an unobstructed view.

Are casement windows energy efficient?

Yes. The single-sash design limits air paths, and the compression seal tightens under wind pressure. For higher performance, choose Low-E coated glass, argon gas fill, warm-edge spacers, and dual- or triple-pane configurations that meet Energy Star targets in your climate.

What are the advantages?

Casement windows are simple to operate, even when you need to reach across a counter. They bring in strong airflow, provide wide daylight, and deliver a clean look with narrow sightlines. The secure seal supports comfort and noise reduction, and the crank handle folds away when not in use.

Where do casement windows work best?

They excel in kitchens, baths, and any spot where you want fresh air and easy reach. Their slim frames suit modern designs, and their tall proportions work well in living rooms, bedrooms, and hallways where you want more glass and less frame.

Do casement windows come with screens?

Yes. We offer interior insect screens that allow airflow while keeping bugs out. Options include standard mesh and high-visibility mesh for clearer views.

What is another name for a casement window?

Casement and awning windows are often called crank windows because both styles open with a crank. The difference: casements hinge on the side and open outward; awnings hinge at the top and open from the bottom.

GLASS

Creating your own insulating glass unit (IGU) by following three simple steps

Step 1: Type of Glass

Annealed |Tempered | Laminated

Annealed Glass

Clear, standard glass with excellent clarity and value for everyday applications.

Tempered Glass

Heat-treated for additional strength and safety. If broken, it crumbles into small pieces to help reduce injury risk.

Laminated Glass

Two sheets bonded with a safety interlayer. Enhances security, improves sound control, helps block UV, and holds together on impact.

Step 2: Dual-pane / Triple-Pane

Dual-Pane IGU

Two panes separated by a warm-edge spacer with argon gas between the panes. A balanced choice for clear views, insulation, and cost.

Dual-Pane Glass Diagram with LoE 366 and Lami. Glass

Triplepane Glass Diagram with Two LoE 366 Glass

Triple-Pane IGU

Three panes with two spacers and argon gas in both chambers. Higher insulation and better sound control. Available on select sizes.

Step 3: Energy-Efficient Coated Glass

LoE 366

Triple layer coating glass for outside solar control. Helps manage heat gain while keeping interiors bright.

LoE i89

Four layer coating clear glass for room-side efficiency. Enhances insulation and supports maximum energy savings.

Step 4: Color & Pattern Options

Choose from a range of pattern glass designs to add privacy and character to bathrooms, entry areas, and other spaces. These options bring dimension to windows or doors while maintaining natural light.

Matte

Bamboo Glass

Glue Chip

Obscure

Grey

Bronze

Reeded

Rain

Delta Frost

GRID

Grid Between the Glasses

The grille sits between the panes, so you get the look you want and an easy-to-clean glass surface with no exterior bars to wipe around. *We also offer Simulated Divided Lite (SDL) grids for specific window and door styles. SDL options require additional lead time and cost. Please contact our sales team for details.

Flat Grids Size: 5/8, ¾

Sculptured Grid Size: 5/8, 1

Grid Patterns

Available patterns include Marginal, Double Prairie, Colonial, and Marginal MG18.

*Grid patterns allow wide customization but are limited to vertical and horizontal orientations. *Geometric picture windows have specific grid pattern options. Please contact our sales team for more information.