We Manufacture the Products We Sell
Unlike many other window and door companies who merely distribute someone else's product, we manufacture the windows and patio doors we sell, right down to the insulated glass units! Click here to view window lines.
May is Patio Door Month
Glide™ vinyl patio doors offer our most energy efficient glass options and our widest array of color combinations.
Learn about Glide™ Patio Doors
See Patio Door Color Configurations
Our Most Popular Windows
View our best selling windows and make sure you check out all the woodgrain and color choices:
Renaissance™ Series casement windows (shown)
Platinum Series double-hung windows
Powerweld Series double-hung windows
Casement Windows
Renaissance™ Series casement windows by Lang Exterior feature 90-degrees of movement, creating great airflow and easy cleaning access. Click below to learn more.
View Renaissance Series casement windows
View Renaissance™ Series bay windows and bow windows
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.)
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.
View Videos about Lang Windows
Triple-Pane R5 Windows
R5 is the most energy efficient triple-pane option available.
See more about R5 triple-pane windows and doors
View products with the R5 option:
Platinum Series
Powerweld Series
Renaissance Series
Glide Patio Doors
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