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Chicago, N.W. Indiana Chicago, N.W. Indiana We are located in Cook County.
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Founded In: 1953

Our Story

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Our main lines of business include: Vinyl & Fiberglass Windows.

Lang Exterior has been listed in the Blue Book since 2001.

What We Do

Products/Services Relating to Vinyl Windows

Service Areas

Associations & Memberships

Member of National Glass Association National Glass Association