Martinez Andersen Windows

Andersen is a premium, nationally recognized window brand, and it earns that position on two things Martinez homeowners tend to care about on a nicer home: its proprietary Fibrex composite material and its wood and clad-wood options for homes where the window is part of the architecture. If you're renovating a character home near the historic downtown, or you simply want a window with the substance and brand pedigree to match a larger investment, Andersen belongs on the shortlist. Bay Area Siding Company, based in Larkspur, installs Andersen windows across Martinez. This page covers the lines, what Fibrex actually brings, and where Andersen fits against the other brands we carry.

Interested in Andersen? Call (415) 619-5167 or request a bid.

What Fibrex brings

Andersen's signature is Fibrex, a composite of wood fiber and thermoplastic polymer that's the reason the brand can offer slim, strong frames without the maintenance of wood or the movement of some vinyl. It's more rigid than vinyl, which lets Andersen build narrower frames with more glass, and it stands up to temperature swings — a genuine plus through a hot Martinez summer — with a durable finish that doesn't need repainting. The lines that use it:

• 400 Series — clad-wood construction (wood interior, protective exterior) that's the mainstay for a classic, warm look with strong performance.
• A-Series — the architectural, higher-end line with the widest range of styles, finishes, and sizes, built for design-forward and larger homes.
• 100 Series — full-Fibrex, a more accessible entry into the material without wood, in a clean, low-maintenance package.

Why it suits character homes

Andersen's real sweet spot in Martinez is the older, architecturally distinct home. Around the historic downtown, Victorians and early-century houses have windows that are part of their identity — divided lites, specific proportions, wood interiors that belong indoors. Andersen's clad-wood 400 Series and the A-Series give you a warm wood interior with a durable, low-maintenance exterior, plus the grille patterns and finishes to keep a period home true to itself. For homes closer to the Carquinez Strait waterfront, the clad or Fibrex exterior handles salt-influenced air without the upkeep bare wood would demand in that setting. It's a premium answer for a home where the window matters visually, not just functionally.

Where Andersen fits among the brands

Andersen sits at the premium end, and it's worth seeing the contrast before you decide:

• Marvin — the other premium wood-and-fiberglass brand, especially strong on large sizes and architectural customization; the closest cross-shop with Andersen on high-end projects.
• Pella — a national brand that also spans wood through vinyl, another premium cross-shop.
• Anlin and Milgard — value-oriented, mostly-vinyl lines; a different budget and material proposition where premium isn't the goal.

If brand recognition, a composite or clad-wood material, and character-home fit are your priorities, Andersen is often the front-runner. Start at the window replacement hub for the full comparison.

Retrofit or new-construction install

The install method is as important as the window on a premium job. A retrofit (insert) sets the new unit into the existing frame — less invasive, good for sound openings. A new-construction (full-frame) install takes the opening back to the rough opening so the flashing and water-resistive barrier can be fully renewed — the right call where there's rot or water intrusion, or where you're re-siding at the same time. On a character home, full-frame is often the better choice because it lets us renew the weatherproofing and set the window exactly right in a period opening. We assess and recommend.

Permits, energy code, and the fire edge

Window replacement in Martinez is permitted through the City of Martinez Building Division (525 Henrietta Street) under the adopted California Building Standards Codes, and because it's treated as an energy-code alteration, a Title 24 fenestration compliance document is generally part of the submittal. We handle it and confirm the current U-factor and SHGC values at permit time rather than assume prior-cycle numbers. For homes on Martinez's hillsides or out toward Alhambra Valley, where Cal Fire's 2025 maps show Fire Hazard Severity Zones, Chapter 7A can require multi-pane glazing with at least one tempered pane on altered openings — parcel- and scope-dependent, which we confirm before ordering glass.

What affects the cost

Andersen is a premium brand, so it sits at the higher end, and the project price moves with: the number and size of openings, the line (A-Series above 400 Series above 100 Series), the material and finish, any custom sizes or grille patterns, retrofit vs. new-construction, whether the parcel requires fire-zone tempered/multi-pane glazing, framing condition, and access. We price after a walkthrough.

FAQ

What's the advantage of Andersen's Fibrex material? Fibrex is a wood-composite that's more rigid than vinyl, so Andersen can build slim, strong frames with more glass. It resists temperature movement — useful in Martinez's hot summers — and needs no repainting, combining much of wood's look with far less maintenance.

Is Andersen a good choice for an older downtown Martinez home? Often, yes. The clad-wood 400 Series and A-Series give a warm wood interior with a durable exterior, plus grille patterns and finishes that keep a Victorian or early-century home true to its character.

How does Andersen compare to Marvin? Both are premium wood-and-composite brands. Andersen is known for Fibrex and broad recognition; Marvin is especially strong on large sizes and architectural customization. We compare them for your specific project rather than defaulting to one.

Do my windows need tempered glass on a Martinez hillside parcel? Possibly, if the parcel is in a fire-hazard zone and the opening is altered. Chapter 7A can require multi-pane glazing with at least one tempered pane on altered openings. It's parcel- and scope-dependent, and we confirm before ordering.

Get an Andersen quote for your Martinez home

Call (415) 619-5167 or request a bid. We'll match the right Andersen line to your home's style, confirm any fire-zone glazing requirement, and install it correctly. Comparing brands? See Anlin, Milgard, Marvin, and Pella, or the Martinez window replacement overview. We serve Contra Costa County; see finished work in the project gallery.