Lang Introduces
Black Vinyl Windows and Patio Doors!


Lang now offers Black Windows and Patio Doors
in addition to our many other vinyl window color offerings!

Lang black vinyl windows are black through and through,
not painted like our competitors.

Click anywhere on the black to find out more!


Ultra Tuff Aluminum Windows by Lang Exterior

Did you know Lang Exterior offers aluminum windows? Ultra Tuff aluminum windows are perfect for commercial use and have an innovative thermal break that makes them unbeatable for interior comfort.

> View Ultra-Tuff Aluminum Double-Hung Windows           > View Ultra-Tuff Aluminum Picture Windows

It's easy! You make a list of the windows you want, print it, and give it to your contractor. Make all of your option choices by building the window just the way you want it. Customize each window with every individual option. No struggling with measurements, no self-installation, just the perfect windows.* Build Your Windows now!

* Lang Exterior is in no way responsible for your order and for options that your contractor chooses on your behalf.



Rescreening While You Wait - Direct to the Public


Did you know Lang Exterior offers expert window and door rescreening while you wait at our main Chicago location and did you also know that this service is available directly to the public, without a contractor?


> Find out more about Window and Door Rescreening           > Rescreening Hours and Location

Thank you for your support for the past 66 years! We would like to repay you with NEWLY REMODELED SHOWROOMS AT OUR CORPORATE AND NORTHSIDE LOCATIONS FEATURING OVER 70 DIFFERENT WINDOWS on display, including Bows, Bays, Garden Windows, and our full line of Platinum windows! Please use our showrooms to introduce your clients to our many products.

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How-To Videos by Lang Exterior

Learn how to clean the exterior of a Lang double-hung window. Learn about removing a sliding window sash and check out all of our other videos.

See Videos on Operating Lang Windows
More Videos: Inside Our Factories in Chicago, Illinois


Triple-Pane R5 Windows
U-Value .20!

R5 is the most energy efficient triple-pane option available.

Learn more about R5 triple pane windows and doors

View products with the R5 option:

Platinum Series
Powerweld Series
Renaissance Series
Glide Patio Doors