Marvin Essential Windows

Marvin Essential Windows


The Marvin Essential™ collection brings together design, quality, and performance in one streamlined offering. Robust and durable fiberglass exteriors and interiors are both striking and virtually maintenance-free. Simplified options make the order process straightforward, while clean lines and versatile styles make it easy to meet project demands.

Ultrex Fiberglass

Previously known as Integrity All Ultrex, the Essential Collection features durable Ultrex® fiberglass interiors and exteriors, making it virtually maintenance-free.

Choosing the right materials for windows and doors is important when it comes to long-term appearance and performance. Ultrex® , an innovative fiberglass material pioneered by Marvin over 20 years ago, was one of the first premium composites on the market. However, not all composites are created equal.

• Some companies use materials like sawdust and vinyl to produce a composite material with fundamentally different properties and performance values. But Ultrex is different. Its material makeup contains a high density of woven fibers bound by a thermally-set resin that makes it more resistant to pressure and temperature than vinyl-based composites.

• With such different materials grouped in the composites category, it becomes important to know what sets them apart.

Ultrex fiberglass impact resistant and more rigid than vinyl and vinyl/wood composites. Issues of instability and less-than-perfect alignment that can complicate installation—and long-term performance— are not a concern with Essential Collection windows and doors. The exceptional strength and stability of Ultrex eases installation and establishes a secure, long-lasting fit that stays square and true, year after year



Year-round comfort

Keep the heat inside during cooler weather and block the sun’s rays during warmer weather with Dual Pane windows and Low E coating.


Creating value and efficiency every step of the way

Weather-tight, solid, and durable Ultrex fiberglass means there are virtually no call-backs. Essential window and door profiles are optimized for the maximum in performance and fit.


Straightforward and tough

Available with custom sizes, a variety of interior and exterior finish options, exterior trim, divided lites, and hardware options, the Essential products are designed to blend seamlessly with any style. The narrow frames and clean lines provide a great contemporary feel and the strength of Ultrex® helps ensure windows and doors stay true and operate effortlessly for years to come.

With slim profiles, clean lines, and simpler features and options, Marvin Essential makes it easier to choose and order.