Build My Windows (0)
Thank you for your support for the past 63 years! We would like to repay you with A NEW SHOWROOM AT OUR CORPORATE LOCATION 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.
Lang Insulated Glass Units
Did you know that Lang Exterior manufactures and sells Insulated Glass Units in addition to complete windows? Our customers can order IGUs with the same glass options as our windows, including grids, V-Groove, Enhanced Glass with Argon and Low-E and many more!
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
If Better Windows Could Be Built...
They would be built by Lang!
We manufacture the windows and patio doors we sell, right down to the insulated glass units! Click here to browse all our window types.
Look for the Lang Exterior Window Sticker!
You know it's a quality product when you see our logo! The image at left shows the sticker that comes on every window we make.
Remember that Lang Exterior products are and have always been made in the USA! Learn more:
> VIDEO: Products made in the USA
> VIDEO: IGU production at our factory - showing the Lang sticker applied to the glass as a final production step
We Will Not Be Undersold!
Show us a lower price on a comparable window or patio door and we will beat that price by 10%!* That's our 10% price guarantee, and it proves how dedicated we are to the highest quality products at the lowest prices.
> Learn more about our price guarantee.
> Ask us about our price guarantee. (*Exclusions apply.)
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
Join us on:
Copyright © 1953-2016, Lang Exterior, Inc, Chicago, IL. All rights reserved.
All subject to change without notice.
No part of this website, including artwork or text, may be reproduced or transferred to other websites, in whole or in part, in any form without written permission from Lang Exterior, Inc. (beyond that copying permitted by Sections 107 and 108 of the U.S. Copyright Law and except by reviewers for the public press).
Lang Exterior owns all rights or has license to such rights for its associated trademarks and copyrights of pictures on this website and company brochures. Lang Exterior does not authorize any customer or third party to use any of its associated trademarks, pictures or marketing information contained within this website and company brochures to mislead Lang Exterior current and potential customers as well as infringe on any such trademarks or copyrights described herein. Further, any customer or third party providing such trademarks, pictures, or information to mislead current or potential customers or infringing such trademarks and copyrights described herein will be liable under applicable law. If any legal fees occur the person committing the infringement will be responsible for all costs.
