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Custom Exteriors Named #1 Window Installer by Window & Door Magazine

Over the last 28 years, Custom Exteriors has been the Bay Area’s trusted window installation expert. We take the necessary steps to ensure that our customers are 100% satisfied. Prior to getting started, our team clearly informs every customer about their project details including cost, lead time, and the actual time required for installation. At Custom Exteriors, we are happy to work with your busy schedule.

Our design experts will first help you decide on the best window option for your home. Then, our AAMA Certified Master Installers will install your new windows with precision and superior attention to detail. With the help of our team, your home is guaranteed new windows that will look good and perform great for decades.

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29 Years In Business at the Same Location

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30,000 Projects Completed

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AAMA Certified Master Installers

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Diamond Certified Since April 2002

See The Difference In Person

Visit Our Pleasanton Showroom

Full-size Infinity from Marvin window and door displays let you feel the frame weight, compare finishes, and get your questions answered face-to-face. Appointments preferred.

2142 Rheem Drive, Pleasanton, CA

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A Customer-Oriented Window & Door Replacement Process

From the moment you choose Custom Exteriors for your patio door replacement, you can expect world-class service from a team of professionals committed to your satisfaction. Our experts are here to help you select from myriad patio door designs, ensuring you choose an option that aligns with your home's style and your personal preferences.

Once you've chosen your door, our AAMA Certified Master Installers take over. With over 30,000 projects under our belt, we guarantee a flawless installation process, transforming your patio space with utmost professionalism. Trust Custom Exteriors, where we combine expertise with dedicated customer service for your patio door replacement needs.

Recognized by

When you're comparing contractors, third-party recognition gives you something to verify beyond what we say about ourselves.

Infinity by Marvin Platinum Partner badge for 2025

Special Offer!

18 Months
ZERO Payments + ZERO Interest OR 4.99% Financing on Approved Credit

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Window Materials

At Custom Exteriors, we love helping homeowners choose the best window material that improves their home’s energy efficiency, decreases maintenance costs, and perfectly suits their aesthetic standards. Whether you prefer natural wood or fiberglass we take the guesswork out of the window replacement process and help you make the right choice for your home and budget.

Fiberglass Windows

For homeowners who prioritize energy efficiency, durability, and long-term value, fiberglass is one of the best window material choices available. Fiberglass windows are highly resistant to weather damage, dents, and warping, and they’re easy to maintain with simple cleaning. Their exceptional thermal stability helps keep indoor temperatures consistent, which can significantly reduce energy costs over time. In addition, fiberglass requires fewer natural resources to manufacture than many other window materials, making it a more environmentally responsible option. With a long lifespan and minimal maintenance needs, fiberglass windows offer both performance and sustainability without compromise.

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Infinity® from Marvin Windows

Infinity® from Marvin® offers premium fiberglass windows and doors engineered for exceptional durability, energy efficiency, and timeless design. This makes them a smart long-term investment for homeowners throughout the San Francisco Bay Area. Built to perform in the region’s diverse microclimates, from cool coastal fog to intense inland heat, Infinity products feature low-maintenance Ultrex® fiberglass frames that resist warping, cracking, and fading. Paired with clean lines, customizable styles, and advanced glass options, Infinity windows and doors deliver lasting performance while enhancing comfort, curb appeal, and overall home value.

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EverWood® Windows

EverWood® is Infinity® from Marvin®’s proprietary interior finish designed to deliver the warm, classic look of wood without the maintenance challenges that come with traditional wood windows. Engineered as part of Infinity’s Ultrex® fiberglass window system, EverWood® resists warping, rotting, peeling, and swelling, even in changing climates. It can be painted or stained to match your home’s interior style, offering the authentic appearance homeowners love while maintaining the long-term durability, stability, and energy efficiency that fiberglass is known for.

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Personalized Guidance

Talk to One of Our In-House Designers

Every project starts with a conversation. Our in-house design team will walk through your goals, your home's style, and the best window and door options for your space, no pressure, just expert guidance.

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Inspiration Gallery

Five-Star Reviews

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Make It Affordable

Flexible Financing Options for Every Budget

Quality windows and doors shouldn't mean waiting years to upgrade your home. We work with trusted lending partners to help you find a payment plan that fits your budget and your timeline.

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Simple online application

Apply in minutes and get a decision quickly, without a mountain of paperwork or a trip to the bank.

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Plans for every project size

From window replacement to a full-home upgrade, flexible financing to fit the scope of your project.