South San Francisco Andersen Windows

Andersen is one of the most recognized window names in the country. For South San Francisco homeowners, the more useful question is which Andersen series fits your house, your budget, and the wind that comes up the hillsides most afternoons. Bay Area Siding Company installs Andersen windows across South City, from the postwar tracts in Buri Buri and Westborough to the older homes in Old Town. We're a Larkspur-based siding and window contractor. We handle the measuring, product selection, permitting, installation, and flashing, and we walk the finished job with you.

Want to compare Andersen against your other options? Request an estimate or call (415) 619-5167.

Why homeowners shortlist Andersen

Andersen sits in the mid-to-premium tier. Homeowners who choose it are usually after three things.

• Fibrex composite. Andersen developed its own frame material, a composite of reclaimed wood fiber and thermoplastic polymer. The company positions Fibrex as stiffer and more stable than standard vinyl, while still needing no painting. It's the core of the 100 Series and appears in the cladding of some higher-tier lines.
• Wood where you want it. Andersen's upper series pair a warm wood interior with a low-maintenance exterior cladding. That lets a house keep a traditional look inside without exposing bare wood to the weather outside.
• Brand depth. A wide catalog of sizes, operating styles, and finishes makes it easier to match an existing opening or keep a consistent look across a whole house.

Andersen is not the budget choice. If cost per opening is the main driver, a vinyl line such as Anlin or Milgard will usually come in lower. If you want large custom sizes or an all-fiberglass frame, Marvin is worth a look. Pella covers a similar mid-to-premium range with its own wood, fiberglass, and vinyl mix. We install all of these and will tell you honestly where Andersen earns its price for your house and where it doesn't.

The three Andersen series we discuss most

100 Series: the Fibrex workhorse

The 100 Series frame is made of Fibrex throughout. It's Andersen's most accessible line and the one South City homeowners ask about most when replacing tired single-pane or early dual-pane units in a tract home. The 100 Series suits clean-lined postwar houses in Winston Manor or Westborough well: slim profiles, several exterior colors, and no repainting. If you're choosing between Andersen and a premium vinyl, this is the line to compare.

400 Series: wood inside, protected outside

The 400 Series is Andersen's long-running wood-interior window with a low-maintenance exterior cladding. It fits well in the older homes around Old Town, or anywhere interior trim and woodwork are part of the house's character. You get real wood on the inside where you see it and touch it. The cladding handles the damp, moving air on the outside.

A-Series: the architectural tier

The A-Series is Andersen's higher-end line. It offers more design flexibility, more profile and hardware options, and a wood interior with a durable cladding outside. It makes sense on a remodel where the windows are a design feature rather than a like-for-like swap. For most South City tract replacements it's more window than the house needs. For a hillside home in Sterling Terrace or Serra Highlands with a major view wall, it can be the right call.

We'll confirm current configurations, colors, and availability for each series at the time of your order, since Andersen updates its catalog periodically.

How Andersen handles South City conditions

South San Francisco is one of the windier spots on the northern Peninsula. Summer afternoons are typically the gustiest, and the city's marine setting means a lot of damp, salt-carrying air moving across the glass. That affects your Andersen choice in two practical ways:

• Air-sealing matters as much as the frame. Drafts in older South City homes often come from gaps around the unit, not just the glass. Any Andersen series will underperform if the opening isn't properly flashed and sealed, so installation detail is where much of the comfort gain comes from.
• Low-maintenance exteriors pay off. Fibrex and Andersen's clad exteriors are designed so you aren't scraping and repainting exterior sash in salt air. That's a real advantage over bare wood on exposed walls.

For energy performance, Andersen offers dual-pane Low-E glass packages across its lines. California's Title 24 energy code sets maximum U-factor and SHGC values for replacement windows. Those values change with climate zone and code cycle, so we don't quote fixed numbers here. We confirm the current requirements when we pull the permit and spec an Andersen glass package that meets them.

Retrofit or full-frame: how the install goes

Most South City Andersen jobs are one of two types:

• Retrofit (insert). The existing frame stays, the old sash comes out, and a new Andersen unit is fitted into the opening. It's faster, less invasive, and leaves interior and exterior trim largely undisturbed. It works well when the existing frame is sound.
• New-construction (full-frame). The entire old window comes out, back to the rough opening. The flashing and water-resistive barrier at the opening are renewed and a new unit is installed. We recommend this where we find rot, past leaks, or failed flashing. It's also a natural fit if you're re-siding at the same time.

A typical project runs like this. We consult and measure every opening. We help you pick the series, glass, and finish. We handle the permit and schedule the install. On install day, each opening is checked, set level and plumb, flashed, sealed, trimmed, and tested for operation, and then we do a final walkthrough together.

Permits and fire-zone glazing in South San Francisco

Window replacement in South San Francisco goes through the City's Building Division, part of Economic and Community Development. Windows are among the projects the City processes as over-the-counter permits. Title 24 energy documentation is part of fenestration permits statewide, and we prepare that submittal for you.

CAL FIRE issued updated Fire Hazard Severity Zone maps for South San Francisco in 2025. Parcels near San Bruno Mountain or the Sign Hill open space may carry a designation that brings California Building Code Chapter 7A into play. Chapter 7A can affect glazing on altered openings, for example requirements for tempered or multi-pane glass. It isn't a blanket rule. It depends on your parcel and on whether the work counts as a repair or an alteration. We check your address with the City early and, if it applies, spec Andersen glazing options that satisfy it.

What drives the cost of an Andersen project

We don't publish prices because every house differs. The main cost factors are:

• Which series you choose (100 vs. 400 vs. A-Series)
• The number, size, and operating style of the openings
• Retrofit vs. full-frame installation
• Glass package, including any fire-zone glazing requirements
• Interior and exterior finish and hardware selections
• Repairs to rot or flashing uncovered once the old units are out

Pairing windows with new siding can simplify flashing and trim work. See our South San Francisco siding replacement page. For a brand-neutral overview, read our South San Francisco window replacement guide or the Bay Area Andersen windows hub. Browse completed work in our project gallery, and see where else we work across the Peninsula.

Andersen windows FAQ

Is the Andersen 100 Series the same as vinyl? No. The 100 Series frame is Fibrex, Andersen's composite of reclaimed wood fiber and thermoplastic polymer. Like vinyl, it doesn't need painting. Andersen positions it as a stiffer, more stable material. Whether that difference is worth the price over a premium vinyl is a fair question, and we'll compare them side by side for your openings.

My home is near San Bruno Mountain. Can I still use Andersen windows? Usually, yes. If your parcel carries a fire-hazard designation that triggers Chapter 7A for the scope of work, the glazing may need to meet specific requirements, such as tempered or multi-pane glass. We confirm your parcel's status with South San Francisco's Building Division and spec Andersen units and glass options that comply.

Which Andersen series suits an older Old Town home? The 400 Series is often a good match. Its wood interior respects original trim and woodwork, and the clad exterior handles the marine air without repainting. For a design-led remodel, the A-Series offers more profile and hardware options.

Do Andersen windows come with a warranty? Yes. Andersen publishes a transferable limited warranty, and coverage details vary by series and component. We go over the current published terms for the product you choose, and we install to Andersen's instructions so that coverage is protected.

Ready to see which Andersen series fits your South San Francisco home? Request an estimate or call (415) 619-5167.