Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Door Installation Across Sonoma
Door installation in Sonoma costs $1,800-$4,600 for a standard entry door, $2,400-$7,000 for French or bifold exterior doors, and $3,500-$12,000 for custom or arched units, with most jobs completed in one to two days. We schedule door replacements across ZIP code 95476 every week and most Sonoma homeowners get a site measurement within 3-5 business days. If your door binds in October, lets fog-rot creep into the jamb, or fails a WUI fire-code review, call (888) 635-0804 and a real person picks up, day or night.
Why TruePane Windows & Doors Is Sonoma’s Preferred Door Installation Company
TruePane has been installing and replacing doors for Sonoma homeowners since Dale Kessler founded the company in 2008 on a simple rule: if the frame is not true, the job is not done. We work inside Sonoma’s fire zones, on its clay soils, and with its fog-wetted door jambs every week. Homeowners near the historic plaza, in the ranch tracts off East Napa Street, and up on the valley slopes know us as the crew that measures twice, quotes manufacturer lines side by side on paper, and registers both warranty layers before the truck leaves the driveway.
Our Done Right Promise means what it says. If a door we installed binds, sags, or lets water in within ninety days, we return and make it right, no paperwork fights and no arguing. Sonoma homeowners tend to hold onto properties for decades and they expect the same from their installers. We plan to be here in thirty years, answering the phone. That is the Keystone Standard, and it is written into every estimate we hand you.
Every technician on our Sonoma jobs is background-checked, uniformed, and trained to work in your home the way they would work in their mother’s. And when you call (888) 635-0804, a live person answers. No phone tree, no voicemail, no regional call center. That matters when a door jamb rots out in February and you need to know when we can get there.
Our Door Installation Services in Sonoma
We install the full range of residential doors in Sonoma, but three types come up more than any other here: entry and swing doors, arched and custom doors on the older stock around the plaza, and storm doors on ranch homes that still have original single-pane glazing. Our Door Installation team handles each one with the same discipline: measure the rough opening twice, check for slab settlement, and verify WUI code requirements before any order goes in.
Entry & Swing Doors
Entry doors in Sonoma take a beating from the daily thermal swing. Mornings in the low 50s, afternoons over 90°F. That cycle warps wood frames and breaks glazing seals on side-lites within a few seasons. We install fusion-welded frame doors from Andersen, PGT, and Marvin that hold their shape through the swing, and we set them on stainless steel hinges because the fog will eat plated hardware near the threshold in short order.

Arched & Custom Doors
Older Sonoma homes, the Victorians and adobes near the plaza and the Spanish-style cottages stringing out along Broadway, often have arched or non-standard openings. We measure those in person, build to the actual opening, and specify ember-resistant thresholds and ignition-resistant frames where the WUI zone requires them. A custom arched door in Sonoma runs $4,200-$9,800 depending on species, glass, and fire-rating, and the price includes registered warranty paperwork.

Storm Doors
Storm doors on Sonoma’s 1950s and 1960s ranches are often the first upgrade a homeowner makes before replacing windows. They add an air gap that cuts the fog-driven moisture load on the main entry, and they protect the primary door from UV and rain. We install storm doors from Larson and Andersen in aluminum and steel, most in a single visit, most for $850-$2,200 depending on glass and hardware.

Double & French Doors, Bifold & Pivot Doors
French doors off kitchens and dining rooms heading to patios are common across Sonoma, and the valley’s clay-soil movement means the opening has to be checked for rack before the new unit goes in. Bifold and folding door systems on the wine country estates need heavier hardware and tighter tolerances. Pivot doors, increasingly popular on the slope-side farmhouses, are a specialty of ours. We quote every option side by side on paper so you can see exactly what you are buying.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Sonoma
TruePane is an authorized installer for more than a dozen manufacturer lines, including PGT, CGI, ES Windows. For Sonoma specifically, we lean on PGT and CGI for WUI-zone fire-rated doors, and ES Windows for custom European-style units on the higher-end estates. Because we install these lines daily across the North Bay, we can pull local inventory and hardware faster than a company that orders everything from a catalog. When a Sonoma homeowner needs a replacement threshold or a matching hinge set, we get it handled.
Common Door Installation Problems We See in Sonoma Homes
- Fog-rotted jambs on older wood doors. Morning fog from San Pablo Bay settles in the Sonoma Valley and wicks into unpainted end grain near the threshold. A 1960s fir jamb that was never sealed at the bottom rots from the inside out, and the door starts to sag within a decade.
- Doors that bind every October and every March. Sonoma Series clay soils swell with winter rain and shrink in the dry summer, racking door frames on a calendar schedule. We see the same ranch homes off East Napa Street with sticking doors every fall when the soil contracts, and again in late winter when it swells back.
- Seal failure and fogged glass in exterior doors. The valley’s diurnal temperature swing, 50°F mornings and 90°F afternoons, flexes insulated glass units daily and eventually breaks the seal. Argon leaks out, condensation gets in, and the door glass fogs permanently. This is the most common reason Sonoma homeowners replace an exterior door that still looks fine from ten feet away.
- WUI fire-code non-compliance on replacement doors. After the 2017 Nuns Fire burned into the valley, California Building Code Chapter 7A changed what is allowed on homes in the Wildland-Urban Interface. Doors that were code-compliant ten years ago may not pass today. We check the WUI zone on every Sonoma project before we quote.
Pricing for Door Installation in Sonoma, CA
Here is what we quote in Sonoma as of this year. A standard entry door with a steel or fiberglass slab, new weatherstripping, and a standard lockset runs $1,800-$4,600 installed. A double French door in a standard opening is $2,400-$7,000. Bifold or folding systems run $5,000-$14,000 depending on panel count and hardware. Pivot doors start around $3,500 and top $12,000 for large custom units. Arched and custom doors, common in the older stock around the plaza, run $4,200-$9,800.
What moves the price: WUI fire-rating requirements, the condition of the rough opening after we remove the old jamb, and hardware you choose. We write every estimate as a fixed line-item quote, so the number you see is the number you pay. No change orders, no surprise line items. Call (888) 635-0804 for a free estimate and we will walk the opening with you.
We Also Serve Cities Near Sonoma
Our Door Installation in Sonoma crews work the whole valley, and we regularly schedule jobs in Boyes Hot Springs, Petaluma, Novato, and Cotati. If your door is binding, fogging, or failing a fire-code check and you are anywhere in southern Sonoma County, call us. We will measure it, quote it straight, and install it right.
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 - Door Installation in Sonoma
Yes. If your home falls within a WUI zone under California Building Code Chapter 7A, replacement exterior doors must meet ignition-resistant standards for frames, thresholds, and glazing. The 2017 Nuns Fire redrew awareness of these requirements across the valley. We check your specific address against WUI mapping before we quote, and we specify PGT and CGI fire-rated doors where the code demands them. Call (888) 635-0804 and we will check your property’s status.
Because Sonoma Series clay soils shrink in the dry fall, which drops the slab edge and racks the door frame out of square. The soil swells again in March after winter rain, racking it the other way. This seasonal movement is constant across the valley floor, and we rebuild thresholds and re-shim jambs to absorb it rather than fight it. Call (888) 635-0804 for a frame assessment in October.
Often yes, if the door itself is sound and only the jamb has rotted from fog wicking into end grain. We remove the old jamb, install a new one with sealed end grain and full flashing tape, then re-hang the original door on stainless hinges with new weatherstripping. If the door has warped or the glazing seal has failed, it is usually cheaper to replace the whole unit, and we will show you side-by-side numbers before you decide. Call (888) 635-0804 for a free evaluation.
A raised, thermally broken aluminum threshold with an ember-resistant cap and full-width sill pan flashing under it. That combination blocks fog-driven moisture from wicking into the subfloor, and it is the only setup we install on WUI-zone jobs. Any standard threshold will fail eventually in Sonoma; a properly flashed one will outlast the door. Call (888) 635-0804 to have yours inspected.
Yes, mostly by cutting the heat load on summer afternoons when the valley hits 90°F and by reducing air leakage during foggy winter nights when moisture drives up the effective chill. A well-installed ENERGY STAR door can knock 7-12% off the envelope load for an older ranch home, and it is a prerequisite for many utility rebate programs in California. Call (888) 635-0804 for a quote with the rebate math spelled out.
Call TruePane Windows & Doors for Door Installation in Sonoma
Sonoma homeowners call us because they want the job done right the first time, with both warranty layers registered in writing and a company that still answers the phone if something goes wrong. We measure twice, quote plainly, and stand behind the work with the Done Right Promise. Call (888) 635-0804 now for a free estimate, and talk to a real person, not a menu.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Sonoma and the surrounding communities.



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