CertainTeed Windows

CertainTeed is Now MI

The CertainTeed family of products has been a staple in the building and construction industry for over a century. Producing everything from siding, roofing, decks, railings, and more, the CertainTeed brand is one that homeowners, builders, and dealers trust for its quality and dependability.

In 2007, MI Windows and Doors acquired the rights to be the manufacturer and licensor of CertainTeed-branded windows and patio doors in the Eastern Region of the United States. Until January 2016, all CertainTeed-branded windows in the East were manufactured or licensed by MI. As our company and our name grew, we transitioned away from CertainTeed and focused on growing our own brand. 

Comparable MI Windows and Doors Products

While you will no longer find CertainTeed labels on our products, we have never stopped holding ourselves to delivering the high-quality, high-performing, trouble-free experience that one expects of a CertainTeed-branded product. The following vinyl new construction and replacement windows are comparable to these CertainTeed vinyl windows:

Discontinued CertainTeed ProductAlternative MI Products
BrynMawr III Double-Hung Window1650 Double-Hung Window
New Castle III Double-Hung Window1556 Double-Hung Window
CT Casement Window1675 and 9770 Casement Windows
CT Awning Window1665 and 9660 Awning Windows
BrynMawr III and New Castle III Patio Door

1610 Sliding Glass Door (discontinued)
Upgraded to the 1615/1617 Sliding Glass Door

Devon II Double-Hung Window

1450 Double-Hung Window (discontinued)
Upgraded to the 1555 Double-Hung Window

Devon II Double-Slider Window

1480 Double-Slider Window (discontinued)
Upgraded to the 1685 Double-Slider Window

New Bridge Single-Hung Window4300 Single-Hung Window
New Bridge Single-Slider Window3580 Single-Slider Window

CertainTeed Window Warranty

If the product you purchased came with a CertainTeed window warranty, you will still be covered for as long as the warranty’s parameters are met. Call our CustomerCare department at 717-365-2500 if you have questions about your CertainTeed window warranty.


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