Infinity Bi-Fold Patio Doors

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Fiberglass Bi-Fold Doors for Pleasanton & Tri-Valley Homes

Bring more light, space, and indoor–outdoor living to your Pleasanton or Tri-Valley home with Infinity® from Marvin Bi-Fold Doors, professionally installed by Custom Exteriors. Designed to create wide, unobstructed openings, these doors fold smoothly and stack neatly—perfect for patios, backyards, and entertaining spaces.

Crafted with durable Ultrex® fiberglass and backed by the quality of Marvin, Infinity Bi-Fold Doors offer customizable panel configurations, effortless operation, and long-lasting performance built for Tri-Valley conditions. Advanced weather resistance and energy-efficient glass options help maintain comfort year-round, while Custom Exteriors’ local expertise ensures a precise installation tailored to your home’s style and layout.

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Top Benefits of Infinity® Fiberglass Bi-Fold Doors

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Exceptional Strength

Infinity Bi-Fold Doors are built with Marvin’s proprietary Ultrex® fiberglass, which is significantly stronger than vinyl and resists warping, cracking, and fading—ideal for long-term performance.

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Wide, Unobstructed Openings

Bi-fold panels fold and stack neatly to create expansive openings, delivering a true indoor–outdoor living experience that’s perfect for patios, entertaining, and natural light.

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Design Flexibility

Choose from multiple panel counts, configurations, finishes, and glass options to match your home’s layout and architectural style without sacrificing performance.

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Lasting Performance

Precision engineering and a top-hung design allow for effortless operation and a solid, secure feel—backed by the trusted quality of Marvin.

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Up to 30% Off
James Hardie Siding

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Decades of Experience You Can Trust

Choosing the right products is important, but choosing the right contractor is what ensures those products perform as they should. With decades of experience serving Bay Area homeowners, Custom Exteriors Inc. brings expert craftsmanship, proven installation practices, and deep product knowledge to every exterior remodeling project. From fiberglass entry doors to windows and siding products. Our local team of remodeling experts understand how materials behave in our climate and installs each system with precision, care, and attention to detail. The result is a smoother remodeling experience, long-lasting performance, and an exterior upgrade you can feel confident in for years to come.

Custom Exteriors also installs the appropriate weather barrier to enhance energy efficiency and envelope protection, and they meticulously align seams and apply caulking for a clean, polished, and long-lasting finish. Every project is handled by trained experts dedicated to craftsmanship, precision, and long-term durability so your James Hardie Siding performs beautifully for decades.

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Convenient Financing Options

We install top-quality products at competitive prices and provide financing options to make your exterior remodel convenient, with approved credit.

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Five-Star Reviews

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"Loved working with Custom Exteriors. Very responsive to inquiries. Precise in their measurements, estimate and timeframe for completion. Highly recommend them."

Brian I.

Tampa, FL

"Custom Exteriors provided a great product and good service in replacing 2 sliding glass doors and 2 other windows in my townhouse. One was a custom window that required extra work in refitting the plantation shutters to the new window. Although there were some bumps along the way, Jeff and his foreman Ryan excelled at follow up. I would recommend Custom Exteriors."

Carole N.

Tampa, FL

"Custom Exteriors did a wonderful job. The installation crew were neat and thorough. My salesman Mark kept me informed about delivery and the windows are beautiful, quiet and warm house. I’m very pleased."

Susan G.

Tampa, FL

"Kevin one of the owners of Custom Exteriors contacted me the following day and immediately tried to make things right. The first thing, I was impressed about was he took my call without hesitation. Many medium sized business will bounce me around to different people before finally being able to talk to the owner. He was an attentive listener and took to the time understand my needs and wants in an exterior entry door.His communication was top notch, sending me estimates the same day or the following day. He gave me choices in fiberglass doors: ProVia and Therma-Tru, hardware: Trilennium vs Emtek, and single point vs multiple point locks. I just ordered a ProVia doors through Kevin. This surprised both to my husband and me. Before contacting Custom Exteriors, we thought we were going to get a Therma-Tru door, but that totally changed once we the information we needed from Kevin. I get the sense that he truly wants to give customers options and information, but respects the customer's final decision. There is not high pressure sale pitch. Kevin wants customers to be informed and happy with the end product."

Hellen K.

Tampa, FL

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