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!

> Learn more about Build Your Windows by Lang Exterior > Go to your Build Your Window plan page
* Lang Exterior is in no way responsible for your order and options that your contractor chooses on your behalf.

Thank you for your support for the past 64 years! We would like to repay you with A NEWLY REMODELED SHOWROOM 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 showroom to introduce your clients to our many products.

Now Available: Aluminum Windows

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

> See Ultra-Tuff Aluminum Double-Hung Windows           > Check Out Ultra-Tuff Aluminum Picture Windows

Click Here To Like Us on Facebook
Keep up with the most up to date savings offers when you like us on Facebook. Put the profit in your pocket with Lang Exterior!

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


Watermark