Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Sliding glass doors
Impact garage doorsPGTCGI
Before
After
Before
After
Before
AfterWindows & Doors Services in Sonoma, CA
If you’ve got a window that fogs between the panes every morning or a front door that sticks when the Sonoma sun climbs, you’re not alone. We work on homes across Sonoma every week, and we know the valley’s older houses well enough to spot the problem before we touch the jamb. TruePane Windows & Doors installs, replaces, and services residential windows and doors throughout the 95476 ZIP code, with crews who know the difference between a Victorian near the plaza and a 1960s ranch off Lovall Valley Road. Call (888) 635-0804 and a live person answers, day or night, not a voicemail tree.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Why Sonoma Homeowners Choose TruePane Windows & Doors
Dale Kessler founded this company in 2008 as a second-generation glazier, but the craft tradition behind it goes back more than years. Homeowners in Sonoma call us because we put things in writing that other contractors leave to conversation. Every job carries the Done Right Promise: if it’s not done right, we make it right, no paperwork fights, no arguing. And The Keystone Standard means both manufacturer warranty layers get registered in writing, with durations stated, before our truck leaves your driveway. Not after the check clears. Before.
We’ve worked on homes in the Eastside historic district where original wood-sash windows from the 1920s have been painted shut for decades, and on 1970s ranches in the Maxwell Farms area where single-pane aluminum frames sweat through every foggy morning. Background-checked, uniformed technicians do the work, the same way they’d do it in their own mother’s house. Folks in Sonoma have told us they trust a company that sponsors county fairs and church roof funds, a company that acts like it plans to be here in thirty years. We’re an authorized installer for more than a dozen manufacturer lines, including, PGT, and CGI, and we put side-by-side quotes on paper so you see exactly what you’re buying before you spend a dollar.
Windows & Doors Services We Offer in Sonoma
Window Installation
New windows in Sonoma homes need more than square framing. We account for the valley’s daily thermal swings and, where the property sits in a Wildland-Urban Interface zone, the Chapter 7A fire-code requirements that flatland cities rarely trigger. Learn more about our Window Installation in Sonoma.
Door Installation
A new door should swing true in October and March alike, even on the expansive clay soils that rack Sonoma Valley frames seasonally. We measure twice, quote manufacturer lines side by side, and register the warranty before we leave. Learn more about our Door Installation in Sonoma.
Window Replacement
Replacing 1950s and 1960s single-pane windows in Sonoma ranch homes is the single most common job we do here. The old aluminum frames were never meant to handle fog-driven moisture, and many now fail the ignition-resistance standards current codes demand. Learn more about our Window Replacement in Sonoma.
Impact Windows & Doors
We install Impact Windows & Doors - Sonoma solutions with impact-rated glass and frames from PGT, CGI, and ES Windows. For Sonoma properties on the valley slopes, impact glazing also works as the first line of defense against wind-driven embers.
Energy-Efficient Windows
With summer afternoons in the 90s and foggy mornings in the low 50s, Sonoma homes cycle through more thermal stress than most of the Bay Area. Energy-Efficient Windows - Sonoma with Low-E and dual-pane systems reduce that load and the utility bill that follows it.
Sliding & Patio Doors
Sliding & Patio Doors in Sonoma on ranch homes bind when clay soil shifts. We reset the track, replace rollers, and when full replacement is warranted, we quote manufacturers like Milgard side by side on paper.
Glass Railing Systems
Wine country estates and hillside homes in Sonoma often want views without a bulky railing blocking the sightlines. We install Glass Railing Systems in Sonoma in frameless and semi-frameless styles that handle the valley’s wind exposure.
Custom Windows & Doors
Odd-sized openings in older Sonoma homes are the rule, not the exception. We build custom units that hold the original architectural lines, whether that’s a Victorian double-hung or a mid-century picture window.
Neighborhoods We Serve in Sonoma
We work throughout the 95476 area, from the streets around Sonoma Plaza out to the valley slopes. Typical response time for estimates in the city is within one to two business days.
- Sonoma Plaza & Eastside Historic District
- Maxwell Farms
- Boyes Hot Springs (adjacent, served from Sonoma crews)
- Lovall Valley
- Diamond A & Temelec
Why Sonoma’s Climate & Housing Affect Windows & Doors
Sonoma Valley’s weather is harder on windows and doors than most people realize until the seal fails. Mornings roll in with marine fog from San Pablo Bay, holding temperatures in the low 50s, and afternoon heat regularly pushes past 90°F. That daily swing is severe enough to crack glazing seals in less than a decade on cheap units, and the constant morning damp works into aging wood sills and frames, quietly accelerating rot in properties that went a few years without repainting. We see it most on the 1950s-to-1970s ranch stock and older cottages that still carry original single-pane aluminum or wood-sash windows, frames that were never designed for this climate, and certainly not for today’s fire-code Chapter 7A requirements.
There’s another factor unique to the valley floor. Sonoma sits on expansive Sonoma Series clay soils that swell in winter rain and shrink in dry summer heat. Service calls for sticking doors spike every October after the soil has contracted, then again every March after it swells back. That seasonal racking is nearly a calendar event in the 95476 ZIP code, and it means door work in Sonoma is as much about understanding soil as it is about hinges.
Pricing for Windows & Doors in Sonoma
Window replacement in Sonoma typically runs $650 to $1,800 per window installed, depending on size, frame material, and whether the home triggers Chapter 7A fire-code requirements. Door installation runs $900 to $4,200 for a standard entry door, more for custom or impact-rated work. Sliding patio doors usually land between $1,800 and $5,500. Here’s a line-item view:
- Single window replacement (standard size): $650-$1,200
- Double-pane energy-efficient window: $800-$1,800
- Entry door installation (fiberglass or steel): $900-$2,800
- Wood or custom entry door: $2,200-$4,200+
- Sliding patio door replacement: $1,800-$5,500
- Glass railing system (per linear foot, installed): $140-$320
We also run a maintenance check, a $50 discount on any repair over $250, and a permanent 5% discount for seniors and veterans. Estimates are free, and the written quote is the final price, no surprise line items after the job starts. Call (888) 635-0804 to schedule yours.
Service Area - Cities Near Sonoma
Our crews serve Sonoma and the surrounding North Bay communities, including Boyes Hot Springs, Petaluma, Novato, and Cotati. Scheduling and dispatch are coordinated from our San Francisco Bay Area office, with technicians working locally throughout the Sonoma Valley.
Serving Sonoma, CA - Our Local Coverage Area
We’re based in the Sonoma area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Windows & Doors in Sonoma
Many Sonoma properties fall within California’s Wildland-Urban Interface zones, a designation underscored by the 2017 Nuns Fire that burned directly into the valley. Under California Building Code Chapter 7A, replacement windows and doors on affected and neighboring properties must use tempered or multi-pane glazing, non-combustible or ignition-resistant frames, and ember-resistant thresholds. Not every Sonoma address triggers Chapter 7A, which is why every job should start with a WUI zone check. We perform that check before quoting. Call (888) 635-0804 for an exact assessment on your property, estimates are free.
Most window replacements in Sonoma run between $650 and $1,800 per window installed, with the spread driven by frame material, glazing type, and whether Chapter 7A fire-code requirements apply. Custom sizes in older Victorian or adobe homes push toward the top of that range. Call (888) 635-0804 for a written line-item quote, no surprises on the bill.
No. We quote fixed pricing up front and put it in writing. Most jobs are completed in a single visit, and the price we agree on is the price you pay. If we uncover something behind the wall that changes the scope, we stop and talk to you before any added cost.
Standard window replacements take half a day to a full day, depending on count. A single entry door typically installs in four to six hours. Custom or impact-rated orders add lead time for manufacturing, which we state clearly when you approve the order.
When the city or county requires a permit, we pull it and the work passes inspection before we call the job done. Chapter 7A compliance work on WUI properties frequently requires documentation, and we handle that end to end.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Sonoma and the North Bay.
What happens when you call
- 1A real person answersNo phone trees - talk to a local windows & doors pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Sonoma Customers Say
"A casement crank had stripped and the sash was swollen shut. The technician, Ray, fixed the crank on the spot and only then talked about replacement for the three windows that were genuinely done. That is why the whole street uses them now."
- Eleanor G."French doors to the patio, custom size because this house was built in 1961 and nothing is standard. Measured twice, three weeks to fabricate like they warned, and the install day they laid runners over my floors without being asked."
- Marie S."Our bay window had rotted at the sill and two other outfits wanted to talk us into a flat picture window instead. TruePane rebuilt the opening and matched the original look. Neighbors have knocked on the door about it."
- Gene A.