Windows & Doors
The Smart Alternative to Vinyl.
Our budget-friendly 100 Series product line is engineered with Fibrex® composite material for durability, sustainability and energy-efficiency. It's twice as strong as vinyl and provides low-maintenance exteriors with clean corners for a refined look.
Time Tested, Classic Wood Craftsmanship.
As our most popular series with our longest-standing products, the 400 Series product line brings you the best overall blend of performance and style to satisfy just about any window or door need. With years of engineering and craftsmanship to build on, these windows are designed to live up to your high standards.
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.
Strike the perfect balance of beauty and strength
The Marvin Elevate™ collection is an ideal blend of remarkable design and superior strength, bringing balance to your style and performance needs. Proprietary fiberglass exteriors stand up to all elements, outperforming and outlasting vinyl, roll-form aluminum and other fiberglass composites. Warm wood interiors add timeless beauty, while resilient, long-lasting fiberglass stays strong in even the toughest conditions.
At Gerkin, our mission is to design, manufacture and deliver the highest quality, most competitively priced window and door products available, with a high degree of service. In short, it is our intent to offer you the most for your money.
We blend new material technology with innovative manufacturing processes. This allows us to create thermally efficient, low maintenance, consumer-friendly window and door products that enhance the beauty of your home or building project.
Therma-Tru exists to make owners feel at home with innovative entry door products and systems engineered to work together and perform for a lifetime. Delivering uncompromised quality, inside and out, Therma-Tru provides inspired designs with unlimited choices to complement the needs of homeowners.