On Piedmont's Tudors, Mediterranean-revival homes, and hillside estates, the window is part of the architecture — and Andersen is a brand built for exactly that conversation. Its premium clad-wood A-Series and signature Fibrex composite lines were designed to deliver period-appropriate proportions, historically informed profiles, and the grille and divided-lite detail that carries a facade — while still hitting modern energy numbers. Bay Area Siding Company installs Andersen across Piedmont, and we manage the entire project: field measuring, glazing and finish selection, the permit and any design-review submittal, removal, flashing, air-sealing, and a final walkthrough.

Planning an Andersen project in Piedmont? Request an estimate or call (415) 619-5167.

Appearance first: matching a period facade

Piedmont's older homes reward a careful match, and Andersen's higher lines are where that gets easiest.

• A-Series is Andersen's architectural clad-wood flagship — warm wood interiors, a durable exterior cladding, an extensive palette of exterior colors and interior wood species, and factory grille and simulated-divided-lite options developed to suit specific architectural styles. On a street-facing Tudor or Mediterranean elevation, this is the line that lets you keep the original character while gaining a dual-pane, Low-E unit.
• 400 Series is the long-running clad-wood workhorse — proven, widely available, and a strong choice where you want wood-window character without full A-Series customization.
• 100 Series is full-Fibrex composite — a lower-maintenance, more budget-conscious option for elevations where the exact wood profile matters less, or for rear and secondary openings.

Fibrex, Andersen's signature composite, allows narrower frames than typical vinyl for more glass and slimmer sightlines — useful where you want a cleaner look without stepping to full clad-wood.

Andersen and Piedmont's design review

Piedmont reviews exterior appearance, and this is where Andersen's detailing pays off. The city offers a real shortcut: a like-for-like replacement can be exempt from design review when there's no change in the window's size, location, operation, recess from the exterior wall surface, or divided-lite pattern — and any new divided lites are true divided lites or three-dimensional simulated divided lites. Andersen's A-Series and 400 Series can be specified with true or simulated divided lites and grille patterns chosen to reproduce an existing muntin geometry, which is what makes the in-kind exemption realistic on a period home rather than a compromise. Step outside the exemption — enlarging an opening, changing operation, altering the pattern — and a submittal generally comes back into play; we prepare that path either way. Weighing other premium options? Compare Marvin and Pella wood lines; for value alternatives see Milgard and Anlin, or start at the window replacement hub.

Energy, permits, and the southeastern fire zone

A permit is required for window replacement in Piedmont, with Title 24 energy compliance as part of the submittal. Because the code's U-factor and SHGC caps vary by climate zone and code cycle, we spec Andersen's glass package to the code in effect at permit time rather than to a number quoted online. The southeastern portion of the city — roughly a fifth, around Park Boulevard, St. James Drive, and Tyson Lake — lies in a Very High Fire Hazard Severity Zone under Ordinance 755 N.S. (2020). Where an opening is altered on a parcel there, California Building Code Chapter 7A can require multi-pane units with tempered glazing; Andersen units can be built to that spec, and we confirm whether your parcel and scope trigger it before ordering. For bedrooms, we verify each window against Piedmont's emergency-egress minimums so the replacement keeps a code-compliant opening.

What affects the cost

We don't post prices, because every project is different — and with Andersen the range is wide. The drivers are the number and size of openings, the line (a 100 Series Fibrex unit and a fully customized A-Series carry a large spread) and finish/glass package, retrofit versus new-construction method, whether a southeastern parcel triggers tempered/multi-pane glazing, whether the in-kind exemption applies or a design-review submittal is needed, the condition of the existing framing (rot repair adds scope), and access on upper-story or hillside openings. A retrofit (insert) keeps the existing frame; a new-construction install takes the window to the framing so flashing can be fully renewed — the right call where there's rot or past water intrusion. We do both.

Frequently asked questions

Which Andersen line matches a Piedmont period home best? For a prominent Tudor, Mediterranean, or revival facade, the A-Series clad-wood line is usually the best appearance match — wood character, period-appropriate profiles, and grille or simulated-divided-lite patterns chosen to reproduce your existing geometry. The 400 Series is a strong clad-wood alternative, and the 100 Series Fibrex suits secondary elevations or tighter budgets.

Can Andersen windows qualify for Piedmont's design-review exemption? Yes, when the work is like-for-like — same size, location, operation, recess, and divided-lite pattern, with new divided lites true or 3-D simulated. Andersen's A-Series and 400 Series can be specified to match an existing muntin pattern, which is what makes the in-kind exemption workable on a period facade. We confirm the path before ordering.

What is Fibrex, and how does it compare to wood or vinyl? Fibrex is Andersen's composite of wood fiber and polymer. It allows narrower frames than typical vinyl for more glass, resists the maintenance of solid wood, and sits below full clad-wood on cost. On a period facade the A-Series clad-wood still reads most authentically; Fibrex is a strong step up from vinyl where the exact wood profile matters less.

Do I need a permit and possibly tempered glass for Andersen windows in Piedmont? A permit, yes, with Title 24 compliance in the submittal. Tempered/multi-pane glazing may be required if your parcel is in the southeastern Very High Fire Hazard Severity Zone and the work alters an opening — Chapter 7A territory. Andersen can be built to that spec; we verify parcel and scope before ordering.

Get started

Get a window that keeps your home's character and meets today's code — sized, specced, and installed right, with the permit and review path handled before we order. Request an estimate or call Bay Area Siding Company at (415) 619-5167. We also handle window replacement, siding replacement, and James Hardie siding in Piedmont, serve the wider East Bay, and post finished work in our project gallery.