Previously known as Integrity All Ultrex®

Essential

Marvin Essential™ Collection

Design and performance, made easier

The Marvin Essential™ collection brings together design, quality, and performance in one streamlined offering. Strong, 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.

View All Essential Products

Essential: Straightforward and Tough

  • Proven strength
    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.
    Highlight Proven Strength
  • Powerful durability
    Marvin is the leader in fiberglass, which outlasts vinyl windows by 38%. Our pultruded fiberglass remains stable in extreme temperatures and expands at nearly the same rate as glass, so Essential windows stay strong and true, even in harsh conditions.
    Elevate And Essential Fiberglass Cross-Section Sample
  • Streamlined details
    With narrow profiles, clean lines and simpler features and options, Essential makes it easier to choose and order.
    Fireplace And Interior View Of Essential Picture Windows

Get Inspired

See how windows and doors can transform a home and spark new design ideas.

Visit the Gallery
Explore our Other Collections

Large Living Room With Signature Ultimate Windows And Doors

Signature Collection

The broadest range of product types, sizes, configurations, and design options.
Explore Signature Ultimate
Explore Signature Modern
Kitchen With Marvin Windows From Elevate Collection With Divided Lites

Marvin Elevate™ Collection

A thoughtfully designed collection that balances beauty and strength.

LEARN MORE