About Us

Alliance Vinyl Windows Co., Inc. is a manufacturer of vinyl windows and patio doors, and is the exclusive manufacturer of the Alliance Window Systems in Philadelphia and surrounding Mid-Atlantic states. AVW was founded in 1956, and continues to be privately held and family owned and operated.

AVW began in business producing storm windows and storm doors, and in the mid 1980’s focused solely on vinyl windows and patio doors. In order to offer our customers more options, in 2000 AVW became a founding member of the American Window Alliance (AWA). The AWA is a network of regional manufacturers who produce and market the same product under the same brand name. Thus was born a new brand of vinyl windows and patio doors called Alliance Window Systems. The AWA network of independent manufacturers offer its customers the strength of a national network with local support capable of providing the highest level of service to our customer base.

Today, AVW offers a complete line of both new construction and replacement windows and patio doors. Our Alliance vinyl products are designed for optimum energy savings combined with pleasing aesthetic beauty. When you add Alliance products to your home, you add maintenance-free vinyl windows and patio doors that give you peace of mind. The peace of mind knowing that we back our entire line with the Alliance Assurance Plus Limited Lifetime Warranty… a warranty second to none.

  • Tax Credit

    Learn how you can save with energy-efficient windows from Alliance. Learn more.

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  • Industry's best warranty.

    View and download our warranty information today to learn more.

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  • Thermal Performance

    View the thermal performance test data on our windows.

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  • A variety of color options!

    A wide range of interior, exterior and woodgrain options. Learn more.

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