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Infinity by Marvin Windows
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Infinity Windows from Marvin

Infinity from Marvin® Windows: Premium Replacement Windows for San Francisco Bay Area Homes

Looking for the best window replacement in the San Francisco Bay Area? Custom Exteriors is a certified Infinity from Marvin dealer, trusted by homeowners across the East Bay and beyond. Infinity windows are crafted from Ultrex® fiberglass, offering unmatched durability, timeless design, and superior energy efficiency. These windows are ideal for Bay Area climates with cool coastal air and warm inland sun. Discover why Infinity from Marvin selected Custom Exteriors as their exclusive Bay Area partner for professional installation, expert design guidance, and lasting performance.

Infinity from Marvin Window Styles for East Bay Area Homes

Infinity from Marvin® gives Bay Area homeowners a complete selection of premium fiberglass window styles designed to enhance natural light, boost energy efficiency, and elevate curb appeal. Each window is built with Ultrex® fiberglass — a proprietary material that’s up to eight times stronger than vinyl — ensuring long-term performance in the East Bay’s coastal, sunny, and variable climate. From modern picture and casement windows that open up your view to timeless double-hung and bay windows that suit classic California ranch-style homes, every design is engineered for strength, beauty, and lasting value.

Popular Infinity Window Styles

Infinity Windows from Marvin

Window Materials for East Bay Area Homes

At Custom Exteriors, we help Bay Area homeowners choose the best window material for their home’s style, performance goals, and budget. Whether you’re comparing fiberglass, vinyl, or natural wood windows, our experts explain how each material impacts energy efficiency, maintenance, durability, and overall curb appeal. From modern fiberglass frames that resist warping and weathering to classic wood windows that bring warmth and character, we simplify the window replacement process so you can make a confident, informed choice that enhances your home’s comfort and long-term value.

new fiberglass windows

Fiberglass Windows

Infinity By Marvin Ultrex
For those who value energy efficiency and longevity in their windows, fiberglass is by far one of the best window material choices. It is weather and dent resistant, very easy to clean, and can keep your energy bills noticeably low for a long period of time. Fiberglass windows also require little to no natural resources to produce, making them one of the more eco-friendly options commercially available.
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Benefits of Infinity from Marvin Windows

Infinity from Marvin windows are unrivaled in the industry, offering an exceptional combination of strength, performance, and design flexibility. Crafted from Ultrex® fiberglass, these windows are eight times stronger than vinyl, ensuring a lifetime of performance and structural stability. For as long as you own your home, they will resist leaks, seal failures, and stress cracks, which are common issues that can negatively affect energy efficiency.

casement windows

Design Excellence with Infinity from Marvin Windows

Infinity from Marvin windows are designed to withstand the test of time. Their strength allows for narrow profiles, providing expanded views and inviting more daylight into your home. The proprietary acrylic finish is fade-resistant and virtually maintenance-free, contributing to a timeless aesthetic that effortlessly complements any home.

Of course, you’ll also have a virtually unlimited combination of customization options to choose from to create the perfect look. Select from a wide array of window styles, frame colors, decorative accents, and more.

exterior windows

Stress-free Window Replacement with Custom Exteriors

Choosing Custom Exteriors for your window replacement project ensures an effortless and satisfying experience. Our expert team, comprised of AAMA Certified Master Installers, is committed to providing you with world-class customer service. From your initial consultation to the final installation, we guide you at every step, ensuring a seamless transition to your new windows.

Learn More About Our Window Replacement Services

At Custom Exteriors, we stand behind the quality of our work and the products we install. With over 28 years of experience and more than 28,000 successful projects under our belt, we are the preferred choice for homeowners across the San Francisco Bay Area.

Embrace the transformative power of Infinity from Marvin windows with Custom Exteriors. Contact us today to get started on your project.


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Five-Star Reviews

Read Our Testimonials

"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

WINDOW TYPES

The type of window you choose can greatly impact the quality, comfort, and safety of your home. Maintenance, security, light quality, and airflow are just a few factors to take into consideration when selecting your window. Rest assured, our team at Custom Exteriors will help you every step of the way. We offer sliders, hung and double hung, picture, casement, awning, bay, bow, and more!

Sliding Windows

Unlike traditional single or double hung windows, sliding windows open horizontally instead of vertically. This makes them one of the easier types to operate and maintain. Depending on your lighting and ventilation needs, sliding windows could be a superior option for your home or business.
glider window

Single Hung & Double Hung Windows

Arguably the most common window style, Single Hung and Double Hung windows are versatile, stylish, and so easy to maintain. They come in a wide variety of colors and designs and are highly energy-efficient to boot. Single hung windows are defined by a top sash that is fixed in place. Double hung windows, on the other hand, have two moveable sashes.
double hung window

Picture Windows

Picture windows are a great way to increase your home’s natural lighting. They’re cost-effective, picturesque, and inoperable—making them perhaps the most secure window type available. They’re often chosen because of the completely unobstructed view and natural light that they provide.
picture window

Casements & Awning Windows

For windows placed in hard-to-reach areas, such as above countertops or furniture, Casement and Awning windows are by far the most suitable type to install. They’re opened by a hand crank typically found at the base of the window, making for easy operation. And because they open completely—unlike other windows that only open halfway—casement windows provide full ventilation for any room.
awning window

Bay Windows

Perhaps one of the most glamorous options on the market, bay windows can instantly become the focal point of any home. Made up of three or more panels, they can completely open up a room by letting in large amounts of fresh air and natural sunlight. Solidly built and beautifully crafted, bay windows are slowly becoming a homeowner favorite—even despite their size.
bay window