Petaluma came through the 1906 earthquake with far less damage than most of the Bay Area, and more than a century later it still shows. Downtown and the west side still have an unusual number of 1800s homes with their original wood sashes, along with the drafts, painted-shut windows and wavy single-pane glass that come with them. Then there's the wind. Most summer afternoons, cool air off the ocean funnels through the Petaluma Gap and runs straight into town. It's great for the vineyards. It's hard on a house, because a steady wind finds every loose sash and dried-out seal, and it drives the fog and damp in with it.
Our crews work on both sides of 101. On older homes we lean toward wood and fiberglass windows that keep the look of the original sash, and on the newer east side most homeowners choose vinyl. Old sliding doors facing a windy backyard are another common call, and patio and sliding door replacement often fixes the coldest room in the house. Call for a free, no-pressure quote.
Historic Districts and Original Wood Sash
Homes in Petaluma's historic districts come with special city requirements for exterior changes, and windows are named specifically. That doesn't mean you're stuck with drafty glass. It means the new windows need to respect the old ones: similar proportions, similar divided-light patterns, and often wood or a material that reads like wood from the street. We check with the city's Planning Division before anything is ordered, so nothing gets flagged after the fact. For homes outside the districts there's more freedom, but the same idea usually makes sense on a 120-year-old house. Clad wood with matching grilles keeps the character while finally sealing out the wind. It's the same approach we take on older homes around the Plaza in Sonoma, where the houses have a lot in common with Petaluma's west side.
Wind, Fog and the East Side Neighborhoods
East of the freeway, the houses are newer, but the wind is the same. Many of the subdivisions built from the '70s through the '90s still have their original builder windows: aluminum frames, early dual-pane glass with seals that have long since failed, and sliders that rattle every time a gust hits. Facing west, those windows take the brunt of the afternoon wind for half the year. Replacing them makes the biggest difference on that side of the house first, and some homeowners start there and do the rest later. Vinyl is the usual choice here, with good weatherstripping and tight seals at the frame. Upgrading the glass on those west walls also takes the edge off the late-day sun on the few hot afternoons when the wind doesn't show up. A few miles north in Cotati, the same gap wind and the same era of homes lead to the same fix.
Common Questions
Yes, but if the house is in one of the city's historic districts, window changes fall under special requirements, so it pays to check with the Planning Division before ordering. In practice, replacements that match the original size, proportions and grille pattern, often in wood or clad wood, are the ones that move through smoothly. We look at your existing windows and plan the replacements to fit the house.
Any well-installed window with good weatherstripping will beat old aluminum by a wide margin. Casement windows have an edge in windy spots because wind pressure pushes the sash tighter against its seal, while sliders depend more on their brush seals. Whatever style you choose, the install matters: sealing and insulating the gap around the frame is where most drafts get stopped.