Fiberglass Windows & Doors | Windows and Doors

Integrity from Marvin Windows and Doors

Integrity Windows and Doors, from Marvin, are the exclusive fiberglass windows and doors of Marsh Building Products. Made from Ultrex and finished with a patented acrylic topcoat, Integrity Windows and Doors cannot be matched.

Integrity offers the toughest and most durable windows and doors on the market.  The Ultrex fiberglass composite is THREE times stronger than vinyl and EIGHT times stronger than vinyl/wood composites. With an expansion rate that nearly equals that of glass, Ultrex windows and doors remain stable even in extreme temperatures and offer a 38% longer useful life expectancy than vinyl window competitors.

The premium finish added to Integrity Windows and Doors is a patented acrylic finish and is the first and only to be verified to any of AAMA’s 624-10 finish specifications.  It performs in all conditions and combats fading, chalking, peeling, and cracking.

These products meet or exceed Energy Star® Guidelines, so not only will these windows and doors reduce your impact on the environment, they will significantly reduce your heating and cooling bill over time.

See our selection of Integrity Wood/Ultrex Windows or All Ultrex Windows at any Marsh Building Products location.

Integrity Windows and Doors is part of the Marvin family of brands. Employing the values and commitment to quality that made Marvin the premier manufacturer of made-to-order windows and doors. Integrity was created to set a new industry standard in performance and durability.

Infinity from Marvin® is a line of fiberglass replacement windows and patio doors designed by the experts at Marvin Windows and Doors. Created for the homeowner who wants low-maintenance, energy efficiency and traditional beauty, all Infinity products are sold by local window replacement experts as a complete, installed package to provide you with a high-quality, hassle-free experience.

Marsh Building Products