Work directly with Marvin and start your project with a free, no-pressure in-home or virtual consultation. We’re here to help.
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Every 4th Window Or Patio Door On Us.
Choose from seven exterior color options to boost your curb appeal. Our fade-resistant acrylic finish resists scratches, chalking, fading, chipping, denting and peeling. 48,000 hours of sun can’t fade our finish.
Marvin’s Ultrex® fiberglass finish is verified to the American Architectural Manufacturers Association (AAMA) 624 specification. Achieving AAMA 624 verification means that our Ultrex finish has passed rigorous tests that simulate the harsh conditions a finish can encounter throughout the life of the window or door. Average sunlight exposure per 10 years.
We Use Ultrex® Fiberglass for Unmatched Performance
Compared to other materials, Ultrex fiberglass is the strongest window framing material in the replacement industry. The superior strength of Ultrex® results in windows and doors that protect your home and will continue to easily open and close for years to come.
While other window materials can expand and contract depending upon the weather, Ultrex® Fiberglass expands at virtually the same rate as glass. This makes Marvin Replacement windows and doors resistant to leaks, seal failures and stress cracks that can compromise energy efficiency and long-term performance.
Our proprietary acrylic finish is 3x thicker than the competition. Our finish resists scratching and denting, and performs so well that we offer dark colors without fear of UV degradation or fading. No sanding, scraping or painting required - our windows are virtually maintenance-free.
The low thermal conductivity and superior performance of Marvin Replacement windows and patio doors combined with a selection of energy-efficient glass options can help save money on your energy bills.
A Marvin Replacement expert will provide an in-home or virtual consultation to understand your specific project needs.Get Started
On installation day, our team of Marvin Replacement Certified Installers will arrive at your home to remove your old windows and install your new ones.Learn More
Marvin Replacement offers a Limited Lifetime Product Warranty for as long as you own your home - plus a two-year service and installation warranty.Our Warranty
If you’re ready to get started, discuss your replacement window and door options with a Marvin Replacement design consultant. We’re here to answer any questions you may have, and help make your project easy.