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

NEW: Photo Gallery - click here to see pictures
of homes with Lang black vinyl windows

V-Groove Window Glass

Did you know Lang offers V-Groove decorative etched window glass?

V-Groove glass is a decorative V-shape carved into the glass of your windows. This carved glass can be styled in many patterns, including curved shapes. V-Groove window glass also creates a beautiful prism effect in sunlight.

Click here to find out more!

Lang Exterior Would Like To Introduce:

Screen Options

The Clear View Screen
is a great option for any Lang Exterior window to help the eye to see an enhanced view, visually making the image sharper and more brilliant.*

Want to feel like you live in the Caribbean?

Check out Lang's
4-Lite Patio Door.

Available in
42 color combinations
to choose from!

Silence Is Golden

A window that truly keeps the noise inside or out, and we've got it: Silence is Golden.

If you have a noise problem, you need this.


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

Lang Exterior Presents


Seven Times Stronger Than Regular Insect Screening

PetScreen, pet-resistant insect screening, is tear and puncture-resistant to prevent damage by dogs and cats. Ideal for use in high-traffic areas. PetScreen installs like regular insect screening and is excellent for use in patio/porch enclosures and windows and doors. PetScreen is available with all Lang Exterior products!

Thank you for your support for the past 71 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 Powerweld and Platinum windows! Please use our showrooms to introduce your clients to our many products.

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!

Lang Windows in the Press

See Lang's windows as shown on a news story by ABC7 Chicago

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, Cleaning, and Adjusting 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