Alliance
Windows & Doors

Manufactured locally in Bedford Park, IL by Midway Windows, Alliance vinyl windows and patio doors deliver dependable performance at an affordable price. Built for Midwest homes, they combine durable vinyl construction, energy-efficient glass, and low-maintenance finishes.

Quality Alliance Windows for Chicagoland Homes

Schaaf Window Company installs Alliance vinyl windows and patio doors throughout Chicagoland and Northwest Indiana. Manufactured locally in Bedford Park, Alliance products are built to perform in Midwest weather while offering dependable quality for both replacement and new construction.

Alliance windows feature fusion-welded vinyl frames, insulated glass, and multi-chamber construction designed to improve energy efficiency and reduce drafts. The result is a durable, low-maintenance window system that delivers strong performance and long-term value for homeowners.

Featured Alliance Collections

Windgate Single Hung

The Alliance Windgate single hung window is designed for new construction and replacement projects that require durable, energy-efficient vinyl windows. Fusion-welded frames and sashes provide structural strength, while insulated glass and weather-tight seals help improve comfort and efficiency.

View Details

Hawthorne Casement

Alliance Hawthorne casement windows feature side-hinged operation that opens outward for maximum ventilation and tight compression sealing when closed. This design provides excellent energy performance while allowing homeowners to capture breezes and natural light.

View Details

Hawthorne Series Sliding Door

Alliance Hawthorne sliding patio doors feature durable vinyl frames and large glass panels that maximize natural light and backyard views. Smooth gliding rollers and insulated glass packages provide easy operation, energy efficiency, and long-term reliability for everyday use.

View Details

See Alliance Doors & Windows in Our Showroom

Most of our customers start with a visit to our showroom to get ideas and talk to our expert staff. With nearly half our showroom floor dedicated to Weather Shield’s products, you can view and get your hands on all their different products to see what makes them stand out. We know that quality windows come at a price, and that value is a top priority no matter the project.

Installation: What to Expect

From the initial consultation to clean-up, learn about each step in our installation process and know what to expect when installation day comes. Our professional design consultants and window & door installers will take care of your project from start to finish.

Learn More

Homeowner Tips

Whether this is your first time getting new doors & windows or you’re a seasoned pro, get helpful tips and information so that you can make the best choice for your home and understand what sets one product apart from another.

Go to Homeowner Tips