Marvin Essential

Design, quality, and performance in one streamlined offering

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About this Collection

Windows and doors from the Marvin Essential Collection bring together design, quality, and performance in one streamlined offering. Simplified options make the order process straightforward, while clean lines and versatile styles make it easy to meet project demands. The Essential Collection is virtually maintenance-free with fiberglass interiors and exteriors.

Previously known as Integrity All-Ultrex®

Discover the Marvin Essential Collection with the experts at Windows & Doors By Brownell.

Design Flexibility

LOW – Simplified options make the order process straightforward

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Ultrex Fiberglass interior | Ultrex Fiberglass exterior


Low Maintenance | Contemporary Style


New Build | Replacement | Commercial | Residential


Ultrex Fiberglass

The facts speak for themselves. Our proprietary fiberglass is eight-times stronger than vinyl and three times stronger than vinyl/wood composites. It resists fading, chalking, peeling and cracking.

Available Options for this Collection

Essential Collection

Essential Awning
Essential Casement
Essential Double Hung
Essential Glider
Essential Picture
Essential Round Top
Essential Single-Hung
Essential Specialty Shapes

Essential Sliding Patio Door

Resource Center

Download Catalogs

Get more detailed information on your favorite products by downloading product and technical specification catalogs.

Installation Services

Windows & Doors By Brownell is here to make your window and door installation as easy as possible.

Service, Parts & Warranty

Our Service Department is here to ensure performance over the lifetime of your Marvin windows and doors.

Care & Maintenance

Keep your windows and doors looking and operating like new year after year with routine care and maintenance.