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
AfterFast, Reliable Sliding & Patio Doors Across Sebastopol
Sliding patio door replacement in Sebastopol typically runs $1,800-$4,600 for a standard vinyl or aluminum unit installed, while premium panoramic and heavy-duty systems land between $5,500 and $14,000 depending on glass package, frame material, and the condition of the rough opening underneath. Our crews serve the 95472 ZIP weekly, and we know what happens to door thresholds in this town’s marine fog belt. If you’re dealing with a door that fogs between the panes every winter or one that binds each fall, call (888) 635-0804 and we’ll put an exact number on the fix before we touch anything.
The real question most Sebastopol homeowners ask us isn’t about the door itself. It’s about what’s underneath it. That’s where our Sliding & Patio Doors team spends the first hour of any estimate: checking the sill pan, the subfloor framing, and the flashing that previous installs often skipped entirely.
Why TruePane Windows & Doors Is Sebastopol’s Preferred Sliding & Patio Doors Company
We’ve pulled enough failed sliding doors out of Craftsman bungalows near downtown Sebastopol to know the pattern before we even set the ladder. The units themselves vary. The rot underneath follows the same script: fog-driven moisture, a sill pan that was never properly flashed, and subfloor framing that’s been holding water for a decade without anyone noticing. Dale Kessler founded this company on a simple rule: if the pane is not true, the job is not done. That rule governs every sliding door we set in Sebastopol, whether it’s a mid-century ranch off Bodega Avenue or a rural property on former Gravenstein orchard land.
Our Sebastopol customers call a live person when they dial, any hour, and they get a background-checked, uniformed technician who measures the opening twice and quotes manufacturer lines side by side on paper. We register both warranty layers in writing before the truck leaves the driveway. That’s The Keystone Standard, and it’s backed by a Done Right Promise: if it isn’t done right, we make it right. No paperwork fights. No arguing.
We’ve been authorized installers for more than a dozen manufacturers, including, PGT, CGI, and ES Windows, for years. Sebastopol homeowners see exactly what they’re buying, line by line, before any work is approved. Most jobs are completed in a single visit.
Our Sliding & Patio Doors Services in Sebastopol
Patio Sliding Doors
A standard 6-foot patio slider in Sebastopol runs $1,800-$3,400 installed, depending on whether we’re doing a pocket replacement into a sound frame or a full tear-out with new flashing. The older Victorian and Craftsman homes near downtown almost always need the full treatment. The wood jambs on those 1920s openings have usually swollen and shrunk enough times that a simple insert won’t sit square.
Panoramic Sliding Systems
For homeowners opening up a view toward the Laguna de Santa Rosa or a back garden, multi-panel panoramic systems run $6,000-$14,000 in Sebastopol depending on panel count, glass coating, and whether the header needs reinforcement. These are not commodity installs. We measure the opening twice, engineer the header load correctly, and register both manufacturer warranty layers before we leave the driveway.
Heavy-Duty Sliding Doors
Rural Sebastopol properties with wide openings, ranch entrances, or high-wind exposure off the coastal fog corridor need heavy-duty frames that won’t rack out of square. These units run $3,800-$8,500 installed. On floodplain-adjacent parcels east and south of town, we pay particular attention to the sill pan elevation and drainage plane, because groundwater wicking is the failure mode that gets missed by contractors from drier valleys.
Pocket & Barn Doors
Pocket door conversions and barn-style sliding doors in Sebastopol homes run $2,200-$5,800 depending on wall cavity work and hardware grade. Older Craftsman interiors often have plaster-and-lath walls, which means the pocket frame has to be set true against an uneven wall plane. We shim, we level, and we don’t leave a door that drifts on its track.
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.
Trusted Brands We Service in Sebastopol
We install and service sliding doors from Andersen, Pella, Marvin, Milgard, Ply Gem, PGT, and CGI, among others. For Sebastopol’s fog-heavy climate, we frequently recommend PGT and CGI for their coastal-rated thermal breaks and seal longevity, and we quote them side by side with other lines so you see the actual cost difference on paper. We keep common replacement parts, rollers, and locks stocked for local service calls so you’re not waiting on a shipment from the Midwest.
Common Sliding & Patio Doors Problems We See in Sebastopol Homes
- Fogged insulated glass units. Near-daily morning fog and 35-40 inches of annual rain push moisture against seals until they fail prematurely. The fix is a new low-E argon-filled glass unit, not scraping the glass.
- Rotted thresholds and sill pans. On low-lying parcels near the Laguna de Santa Rosa floodplain, groundwater wicks up through subfloor framing and rots the sill pan from below. Surface caulk won’t fix it. The threshold has to come out and the framing inspected.
- Sticking or binding panels each fall. Wood jambs and sashes in older Sebastopol homes swell with sustained moisture and refuse to close smoothly. Lubricating the track treats a symptom. The real issue is often a frame that’s out of true or a roller set installed on an unlevel sill.
- Failed screen doors. Coastal fog accelerates aluminum screen corrosion. We replace and refit screen door installations on patio sliders throughout the 95472 ZIP, matching track styles for older Marvin and Milgard units.
Pricing for Sliding & Patio Doors in Sebastopol, CA
Here’s what Sebastopol homeowners should expect to pay. A typical patio sliding door replacement runs $1,800-$4,600. Heavy-duty sliders go $3,800-$8,500. Panoramic multi-panel systems run $6,000-$14,000. Pocket door conversions run $2,200-$5,800. Screen door installation on an existing slider runs $180-$540. Every estimate is free, written, and line-itemed before you approve a dollar of work. The number we quote is the number we bill, unless we find hidden rot or framing damage, and then we price that repair in writing and get your sign-off before touching it.
Call (888) 635-0804 to schedule your free estimate. We’ll be there when we say.
| Service | Typical Range in Sebastopol |
|---|---|
| Standard Patio Sliding Door (6 ft) | $1,800 - $3,400 |
| Heavy-Duty Sliding Door | $3,800 - $8,500 |
| Panoramic Sliding System | $6,000 - $14,000 |
| Pocket Door Conversion | $2,200 - $5,800 |
| Screen Door Installation | $180 - $540 |
We Also Serve Cities Near Sebastopol
Our crews cover Sebastopol plus Santa Rosa, Rohnert Park, Cotati, and Windsor. If you’re on the edge of the 95472 boundary or just outside of it, call (888) 635-0804 and we’ll confirm coverage. Dispatch is coordinated through our San Francisco Bay Area office, and crews serve Sebastopol locally.
Serving Sebastopol, CA - Our Local Coverage Area
We’re based in the Sebastopol 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 - Sliding & Patio Doors in Sebastopol
The fog between your sliding patio door’s glass panels is a failed insulated glass seal, and in Sebastopol it happens faster than in drier parts of Sonoma County because near-daily morning fog and 35-40 inches of annual rain keep constant moisture pressure on the seal edges. Once the seal fails, the argon or krypton gas escapes and condensation forms between the panes. The fix is a new low-E insulated glass unit, not a defogging treatment, and on most quality frames it’s a same-visit replacement. Call (888) 635-0804 for an exact quote on your door.
We remove the entire door and threshold, then inspect the sill pan and subfloor framing underneath. On low-lying parcels near the Laguna de Santa Rosa floodplain, groundwater wicks up through the subfloor and rots the sill pan from below, which is a failure mode that surface-level contractors routinely miss. We rebuild the sill pan, lay new flashing tape, and replace any compromised framing before setting the new door. Every repair is priced and approved in writing before we cut anything. On a Craftsman bungalow near downtown, our crew pulled a failed Milgard sliding patio door and found the original sill pan rotted through from years of fog-driven moisture wicking up through the subfloor. We replaced the entire threshold with a fusion-welded frame, laid new flashing tape over a rebuilt sill pan, and swapped the fogged insulated glass unit for low-E argon-filled glazing, all priced and approved in writing before we touched the rot.
Yes, any full-frame sliding door replacement in Sebastopol that alters the rough opening requires a building permit, and the city’s current code may require upgrading the header, sill anchoring, or shear wall nailing once the opening is exposed. We handle the permit application, coordinate inspections, and carry the cost of code-required upgrades in a written allowance built into the contract before work starts. If an inspector flags something unexpected, we price the change and get your approval in writing before proceeding.
For Sebastopol’s marine fog belt, we’ve seen the strongest long-term performance from PGT, CGI, and Ply Gem’s coastal-rated lines, which use fusion-welded frames and thermally broken sashes designed for sustained moisture exposure. Fiberglass frames from Marvin also hold up well in wet climates. We quote multiple lines side by side on paper so you see the actual cost difference and can choose based on warranty length, glass package, and frame material, not a sales pitch. Estimates are free.
Your sliding door sticks in the fall because the wood jamb and door frame swell from Sebastopol’s sustained moisture, not because the track needs lubrication. The fix is usually a misaligned roller set or a frame that was not flashed and sealed properly at the threshold. Lubricating the track masks a structural issue. We measure the opening, check the sill for level, and reset the rollers or replace the frame as needed. Call (888) 635-0804 and we’ll diagnose it in one visit.
Get Your Free Sebastopol Sliding Door Estimate
If your sliding door fogs up, binds, or sits on a threshold that’s gone soft, call (888) 635-0804. We’ll send a background-checked, uniformed technician to measure the opening, inspect the sill pan and framing underneath, and put a line-itemed price in writing before you commit to anything. We stand behind the work, the warranty, and the promise. Done right means never having to call back about the same door.
Written by Dale Kessler, Owner at TruePane Windows & Doors.