Infinity French Doors

Fiberglass French Doors in Pleasanton & Alameda County
Enhance your Pleasanton or Alameda County home with Infinity® from Marvin French Doors, professionally installed by Custom Exteriors. Engineered with Marvin’s proprietary Ultrex® fiberglass, these premium doors combine classic architectural elegance with exceptional strength and stability. Ultrex® is significantly stronger than vinyl and more durable than wood, delivering long-term performance that stands up to both the coastal moisture of the Bay Area and the hot, dry summers of inland East Bay communities.
Designed to resist warping, cracking, swelling, and fading, Infinity French Doors maintain their beauty and smooth operation year after year. Advanced weatherstripping, precision engineering, and energy-efficient Low-E glass options help reduce drafts, improve insulation, and maintain consistent indoor comfort in every season. Homeowners also appreciate the narrow profiles that maximize glass area, allowing more natural light to fill their living spaces while creating a seamless transition to patios, decks, and backyards.
29 Years In Business at the Same Location
30,000 Projects Completed
AAMA Certified Master Installers
Diamond Certified Since April 2002
Why Choose Infinity® from Marvin French Patio Doors
Built with Marvin’s proprietary Ultrex® fiberglass, Infinity French Patio Doors are up to eight times stronger than vinyl. They resist warping, cracking, and fading, making them ideal for long-term performance in changing climates.
Infinity French Doors offer classic elegance with modern customization, including multiple configurations, finishes, and glass options to complement both traditional and contemporary homes.
Advanced weatherstripping and high-performance insulating glass help reduce drafts, improve indoor comfort, and lower energy costs throughout the year.
Precision engineering ensures smooth, reliable operation over time, delivering a solid, secure feel that homeowners appreciate every day.
Quality Construction: The Key to French Doors
How To Choose a French Door
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French Door FAQs
What makes Infinity® from Marvin® French doors different from vinyl patio doors?
Infintity from Marvin French doors are made with Ultrex® fiberglass, which is significantly stronger and more durable than vinyl. Unlike vinyl, fiberglass resists warping, cracking, and fading in the Tri-Valley’s hot summers and cooler Bay Area winters. It expands and contracts less with temperature changes, helping maintain a tighter seal, smoother operation, and better long-term energy efficiency.
Are Infinity® French doors energy efficient for Bay Area Homes?
Yes, Infinity® French doors are designed with advanced Low-E glass options that help regulate indoor temperatures year-round. In Pleasanton and throughout the Tri-Valley area, this means reducing heat gain during warm summer months while keeping your home comfortable during cooler seasons. The durable fiberglass frame also helps prevent air leaks and drafts, contributing to lower energy bills.
Can Infinity® French doors be customized to match my home's style?
Absolutely. Infinity® French doors are available in inswing and outswing configurations, multiple finish colors, grille patterns, and hardware options. Whether you have a traditional home in San Ramon or a more contemporary property in Dublin or Livermore, Custom Exteriors can help you design a door that complements your architecture while maximizing light and views.
Trusted by Infinity by Marvin

Marvin doesn't hand the Infinity name to just anyone. Choosing the right contractor is what separates a product that performs as engineered from one that doesn't, which is why Infinity by Marvin selected Custom Exteriors Inc. as their trusted dealer for the Bay Area. Decades of hands-on experience with Bay Area homes, proven installation practices, and deep product expertise made Custom Exteriors the partner Marvin trusts to represent the Infinity line, from fiberglass entry doors to windows and siding. Our local team of remodeling experts understands how these materials behave in our climate and installs every system with the precision and attention to detail Marvin's standards require, the same standards that make for a smoother remodeling experience and an exterior upgrade homeowners can count on for years.
That standard shows up in the details Marvin looks for in a dealer: installing the appropriate weather barrier to protect energy efficiency and the building envelope, and meticulously aligning seams and applying caulking for a clean, long-lasting finish. It's this level of craftsmanship, handled by trained experts on every single project, that earned Custom Exteriors its place as a Marvin-selected dealer, and that ensures your window, siding, or door delivers the long-term durability Infinity is known for.


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