Bay Area Siding Company installs replacement and new-construction windows throughout Fairfield — the older neighborhoods near downtown, the tract subdivisions filling in north and east, and the flight-path homes closer to Travis. We're a Larkspur-based (Marin) siding and window contractor, and we handle the full job: measuring, glass and frame selection, permitting, removal, flashing and air-sealing, and a final walkthrough.

Ready to move forward? Request an estimate or call (415) 619-5167.

Start with solar heat gain, not just drafts

Most window pages lead with drafts. In Fairfield, the bigger comfort story is the sun. The city runs long, hot, high-UV summers off the inland valley, so the glass spec that matters most is how much solar heat your windows let in. A modern dual-pane unit with a Low-E coating cuts that solar heat gain sharply — the difference between west- and south-facing rooms that cook every afternoon and rooms that stay usable.

California's Title 24 energy code sets maximum U-factor and SHGC (solar heat gain coefficient) values for replacement windows, and Fairfield sits in an inland climate zone where the SHGC limit does real work. The exact numbers vary by climate zone and shift across code cycles, so rather than quote figures that may be out of date, we confirm the current requirements at permit time and select glass that meets them. If you've got single-pane originals — common in Fairfield's postwar stock — the jump to a properly spec'd dual-pane, Low-E unit is the upgrade you feel first.

Other signs it's time: condensation fogging between the panes (a failed seal you can't repair, only replace), sashes that stick or won't stay up, and rot or soft frames at the sill.

Living under the Travis flight path? Consider acoustic glass

Travis Air Force Base is an airlift base, and its large aircraft mean that some Fairfield neighborhoods sit within the base's noise contours. Solano County's Airport Land Use Commission maintains a compatibility plan for Travis that maps those areas, and homes closer to the flight path notice the difference.

If aircraft noise is part of daily life at your address, it's worth spec'ing for it while you're already replacing windows. Acoustic glass — typically a laminated pane, sometimes paired with an unequal-thickness dual-pane build — carries a higher STC (sound transmission class) rating and measurably dampens the low-frequency roar of large aircraft better than a standard unit. It's an optional upgrade, not a code mandate for a straightforward replacement, and it's most worthwhile in the neighborhoods genuinely under the contours rather than city-wide. We'll tell you honestly whether your location warrants it.

Choosing frame and glass

Beyond the glass package, two decisions shape the job:

• Frame material. Vinyl, fiberglass, aluminum-clad wood, and aluminum trade off cost, thermal performance, and looks differently. Newer Fairfield tract homes take vinyl or fiberglass cleanly; older homes with wood detailing near downtown often look right with a clad-wood or a profile that respects the original opening.
• Retrofit vs. new-construction. A retrofit (insert) install keeps the existing frame and is less invasive. A new-construction (full-frame) install removes the window to the framing so the flashing can be fully renewed — the better choice where there's rot or past water intrusion. We do both and recommend based on what we find.

Comparing brands? Start at our window replacement hub, then read the specifics for Anlin, Milgard, Andersen, Marvin, and Pella. We install aluminum windows as well.

Permits, Title 24, and the western hills

Window replacement in Fairfield is permitted through the city's Building Safety division (Community Development) via the Fairfield BUILD system, and because the work is treated as an alteration under the energy code, a Title 24 compliance form is part of the submittal. We handle the paperwork.

On the western slopes toward Green Valley and Cordelia, there's an added consideration. Fairfield has adopted California's updated Fire Hazard Severity Zone maps, which now designate moderate, high, and very high zones within the city. Where a fire-hazard designation applies, Chapter 7A can govern exterior glazing — often calling for multi-paned units with at least one tempered pane on altered openings. Whether that reaches your project depends on your parcel and whether the work is classed as a repair or an alteration, so we confirm it before ordering. On valley-floor lots it typically isn't a factor.

What affects the cost

We don't quote online because every home differs. The drivers: the number and size of openings, frame material and brand, retrofit versus new-construction, any acoustic or fire-zone glazing you add, the condition of the existing framing (rot repair adds scope), and access on upper-story openings. A walkthrough is how we price it.

Doing the whole envelope

Many Fairfield homeowners pair windows with exterior work while access is already open. We also handle James Hardie siding and siding replacement here, and serve the wider Solano County area. See finished projects in our gallery.

Frequently asked questions

Do I need a permit to replace windows in Fairfield? Yes. Window replacement is permitted through the City of Fairfield's Building Safety division via Fairfield BUILD, and a Title 24 energy compliance form is part of the submittal. We handle it.

I'm near Travis — can new windows cut the aircraft noise? They can help. Acoustic (laminated) glass with a higher STC rating dampens aircraft noise noticeably better than standard glazing. It's an optional upgrade, most worth it in neighborhoods actually within the base's noise contours, which we'll help you assess.

Retrofit or new-construction — which do I need? Retrofit keeps the existing frame and is less disruptive; new-construction removes the window to the framing so the flashing is fully renewed, which is the right call where there's rot or water damage. We assess and recommend.

Will new windows really help with the summer heat? Yes — for Fairfield's inland summers, a dual-pane, Low-E unit spec'd to Title 24's SHGC limit is what keeps west- and south-facing rooms from overheating, a bigger factor here than winter drafts.

Get your Fairfield windows moving

Get replacement windows sized, spec'd, and installed right the first time. Request an estimate or call Bay Area Siding Company at (415) 619-5167.