IWC Vinyl Windows

International Window Corporation manufactures an extensive line of windows and doors that are ideal for San Francisco and the Bay Area. IWC Vinyl Windows

Everything we do is dedicated to serving the residential and light commercial building industries. Our products are fabricated from the highest-quality aluminum and vinyl materials. We offer a diverse portfolio of innovative designs, including horizontal and vertical sliding windows, casement windows, garden windows, bay and bow windows, special shapes, louver windows, sliding-glass doors and acoustic windows. These products are ideally suited for both new construction and residential replacement applications in San Francisco.


The Ambassador Series, which features our innovative new ThermoTech™ design, is a high-performance aluminum window that meets the Energy Star requirements in all climate zones as well as the color requirements of an interior designer. With its dual design extrusions, you can mix earth tones on the outside with neutral colors in the inside. When energy efficiency is a priority or requirement, the Ambassador Series can meet these demands at a price that won’t break your budget.


The Imperial Series 6200 aluminum window product line successfully balances quality with price. These aluminum windows are affordable, tasteful, and remarkably durable. The Imperial Series 6200 windows are available in a wide range of styles. We’ve engineered the 6200 series window to remain strong and secure. Our even sight line design enables you to maintain their beauty and optimal clarity from inside your home. These International Window Corporation’s aluminum windows are available in a single- or dual-glaze configurations. Specialty options include flat or sculptured grids, leaded glass, and V-groove glass configurations.

Available in standard aluminum for mild climates or thermally improved for extreme weather conditions, Milgard aluminum patio doors bring a decidedly modern edge to entrances into any home or building.