Window, siding, and door replacement in San Jose, CA

Custom Exteriors now serves San Jose homeowners with three product lines we install exclusively: Infinity by Marvin fiberglass windows and patio doors, James Hardie fiber cement siding, and ProVia and Therma-Tru entry doors. Every project is installed by our own full-time employee crews, not subcontractors. We have served Bay Area homeowners since 1997, with more than 30,000 completed projects.

What we install in San Jose

We replace windows, patio doors, siding, and entry doors. Pick the project you're planning, or see the section on combining projects below.

Replacement windows

Infinity by Marvin fiberglass windows are the only windows we install. They're made from Ultrex fiberglass, which expands and contracts at nearly the same rate as glass, so seals stay tight through San Jose's hot inland summers and cool nights. Multiple glass packages are available to meet Title 24, California's energy code.

On Eichler homes, we also replace the large glass walls and clerestory windows that define the house, with frames slim enough to keep the original look.

Replacement windows in San Jose

James Hardie siding

James Hardie fiber cement is the only siding we install. It resists rot, moisture, and pests, it's classified as noncombustible, and it carries a 30-year non-prorated product warranty. In San Jose, we use HardiePanel vertical siding on Eichlers, HardiePlank lap siding on most tract homes, and noncombustible soffits and trim on hillside homes.

James Hardie siding in San Jose

Patio doors

Infinity by Marvin patio doors use the same Ultrex fiberglass as our windows, in sliding, French, and bi-fold styles. A new patio door is one of the most common upgrades on San Jose ranch homes and Eichlers, where the back of the house opens to the yard.

See Infinity by Marvin patio doors

Entry doors

We install ProVia and Therma-Tru entry doors in fiberglass and steel. Our design consultants help you choose the style, glass, finish, and hardware, whether you're updating a 1960s front door or matching a newer home. An entry door also works well as a standalone project.

See entry door options

San Jose homes we work on

What your home needs depends on where it is and when it was built. These are the San Jose home types we see most often.

Eichlers in Willow Glen and other neighborhoods. San Jose has 484 Eichler homes in seven tracts, built between 1952 and 1963. Their original plywood siding and single-pane glass walls are usually due for replacement. Some tracts have design guidance or historic designations, so we check what applies first.
Hillside homes in Almaden Valley and the East Foothills. The City of San Jose identifies these areas as especially vulnerable to wildfire. Noncombustible siding, soffits, and trim are the priority here.
Post-war and newer tract homes across the city. In Cambrian, Evergreen, Berryessa, and much of the rest of San Jose, the most common projects are replacing original windows for comfort and energy savings, and replacing aging wood or hardboard siding to end the repainting cycle.

Do you need a permit in San Jose?

It depends on the project. San Jose's rules for windows are different from many East Bay cities, so here's how they work.

Windows. A retrofit window replacement that doesn't alter the framing, flashing, or exterior wall doesn't need a building permit in San Jose. The new window still has to meet current standards, such as safety glass in certain locations. If the frame or flashing is altered, including when the nailing fin is removed, a permit is required.
Siding. Replacing siding requires a building permit. Repairs under 10 square feet of wall area are exempt.
Historic and Planned Development properties. If your home is on San Jose's Historic Resources Inventory or in a Planned Development zone, Planning approval is required before window work that needs a permit.

Custom Exteriors confirms which rules apply to your home and pulls any permits needed. Whoever pulls the permit is responsible for the work, which is why the City recommends a licensed contractor do it.

Planning more than one project? Start here.

If you're replacing siding and your windows are original, do them together. With the siding off, we can install new windows using the new construction method, so every opening is fully flashed and sealed into the new wall. Doing the windows later usually means cutting into new siding.

If you're replacing only one thing, start with whatever is failing. Fogged or drafty windows, soft or delaminating siding, or a sticking front door are all signs it's time. We'll tell you honestly during your consultation if something can wait.

How a San Jose project works

You don't need to visit our showroom to get started. Here's what to expect.

In-home consultation. A design consultant comes to your San Jose home, measures, looks at the condition of your windows, siding, or doors, and walks you through options. No pressure, no obligation.
Itemized estimate. You get a detailed quote showing exactly what you're paying for.
Permits and ordering. We confirm San Jose's requirements for your home, pull any permits, and order your products.
Installation. Our own full-time crew installs your project. If your home was built before 1978, we follow EPA lead-safe work practices.
Warranty support. Your project is covered by the manufacturer warranties and our own product and labor warranty.

Want to see the products in person first? Our Pleasanton showroom has full-size displays of every window, door, and siding product we install.

Why San Jose homeowners choose Custom Exteriors

You can verify who does the work and who stands behind it.

Full-time employee installers, not subcontractors. The crew that installs your project works for Custom Exteriors. Here's why that matters.
AAMA Certified Master Installers, trained to the American Architectural Manufacturers Association's installation standards.
Infinity by Marvin Platinum Partner, the manufacturer's highest certification tier.
Since 1997, with more than 30,000 completed projects across the Bay Area.
Diamond Certified and BBB Accredited. See our awards and reviews.
EPA Lead-Safe RRP Certified, which matters for the many San Jose homes built before 1978.

Frequently asked questions

Q: Does Custom Exteriors serve all of San Jose? A: Yes. We serve homeowners throughout San Jose, including Willow Glen, Almaden Valley, Cambrian, Evergreen, Berryessa, and the East Foothills. Consultations are done at your home.

Q: Do I need a permit to replace windows in San Jose? A: Not always. A retrofit replacement that doesn't alter the framing, flashing, or exterior wall doesn't need a building permit in San Jose. If the frame or flashing is altered, a permit is required, and homes on the Historic Resources Inventory or in a Planned Development zone need Planning approval first. We confirm what applies to your home and handle any permits.

Q: Should I replace my windows and siding at the same time? A: If both are near the end of their life, usually yes. With the siding off, new windows can be fully flashed and sealed into the wall, and you avoid cutting into new siding later. If only one is failing, start there.

Q: Can you replace the windows and siding on my Eichler? A: Yes. We replace Eichler glass walls and clerestory windows with Infinity by Marvin fiberglass, and replace the original plywood siding with HardiePanel vertical siding, which keeps the vertical lines. Some Eichler tracts have design guidance or historic designations, so we check what applies before you choose products.

Q: How much does window or siding replacement cost in San Jose? A: It depends on the size of your home, the products you choose, and the condition of what's being replaced. See our window pricing guide and siding pricing guide for the main factors. Every consultation ends with a free, itemized estimate.

Q: Do you install vinyl windows? A: No. We install Infinity by Marvin fiberglass windows only. See our fiberglass versus vinyl comparison for why.

Ready to start your San Jose project?

Schedule a free, no-pressure consultation at your home. We'll look at your windows, siding, or doors, walk you through options and any San Jose permit rules that apply, and give you an itemized estimate, with no obligation.

Schedule a no-pressure consultation

‍Visit our Pleasanton showroom (2142 Rheem Drive, Suite E, Pleasanton, CA 94588) Phone: (925) 249-2280

Financing options

We offer 18 months with no payments and no interest if the balance is paid in full within the promotional period, or 4.99% financing on approved credit. Ask about options during your consultation.

See financing details