Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Sliding & Patio Doors Across Mission District
Replacing a sliding or patio door in the Mission District usually runs $1,800 to $6,800, depending on whether the opening needs structural work, and our crew is out here most weeks because the walls in these old flats rarely cooperate. We’re TruePane Windows & Doors, and we’ve been doing sliding door work in the Mission District long enough to know that a simple door swap on paper often isn’t simple once the framing is exposed. Dale Kessler founded this company in 2008 on a rule that governs every job: if the pane is not true, the job is not done. If you want a quote that won’t move on you, call us at (888) 635-0804.
We know Mission Sliding & Patio Doors work means dealing with century-old headers, settle-weathered floors, and lead paint hiding in the putty. Our techs measure every opening twice and write manufacturer lines side by side on paper, so you see exactly what you’re buying before you commit.
Why TruePane Windows & Doors Is Mission District’s Preferred Sliding & Patio Doors Company
The Mission District isn’t like the Sunset or the Richmond when it comes to Door Installation - Mission District. Twin Peaks blocks the fog from rolling in, so your south-facing slider gets hammered by sun and thermal cycling all year long. That means seals fail faster, vinyl-clad frames warp sooner, and old wood jambs dry out and gap. We account for this before we quote, not after we open the wall.
What people in the Mission tell us, and what our review history bears out, is that we do the job once and stand behind it. Every job from a panoramic slider on Guerrero to a screen door on a Potrero Hill-facing walkout is covered by the Done Right Promise. We register both manufacturer warranty layers in writing before the truck leaves the driveway. No paperwork fights, no arguing about who covers what.
Our technicians are background-checked and uniformed. They know the Mission’s row house spacing, they know the alley access issues off alleys like Balmy Alley, and they know how to get a flat’s HOA sign-off without turning your job into a board meeting. And a live person answers our phone 24/7, not a voicemail tree.
Our Sliding & Patio Doors Services in Mission District
Patio Sliding Doors
The classic two-track patio slider is still the most common door we install in Custom Windows & Doors - Mission District flats and single-family Victorians along streets like Dolores and Church. When the old single-pane glass is fogged, the operator’s track is worn, and the frame has settled, we replace the full unit and correct the rough opening so the new door actually latches and seals. We stock operator assemblies for Andersens and Milgards, and we don’t leave a job until the door glides level and shuts square.

Panoramic Sliding Systems
For Mission homeowners opening up a sunroom or a rear parlor, a panoramic sliding system with multi-panel glass changes a hallway into a light well. In this neighborhood’s extra-sunny microclimate, glass selection matters more than people expect. We spec the low-E rating and frame material for the exposure you actually have, not the exposure the showroom model had. ES Windows builds some of the cleanest tall twin-panel lines we install, and on cantilevered back additions we double-check the floor carry before quoting.

Heavy-Duty Sliding Doors
Older Mission flats with heavy solid wood doors and undersized original framing need more than a track swap. When the rollers bind because the floor settled and the opening is no longer square, a light-duty replacement will fail in a few seasons. We quote the heavy-duty option when we see settlement, which out here is most of the time. A heavy-duty slider with a reinforced track and adjustable rollers is the fix for a Mission Victorian that has shifted on true.

Pocket & Barn Doors
Mission kitchens are tight, often occupying a former service porch or a rear addition carved out of a larger parlor. That’s where a pocket door earns its keep, tucking into the wall so every square foot off the kitchen stays usable. Installing one into an 1890s or 1910s interior wall means load-bearing members and sometimes knob-and-tube wiring hiding behind the plaster. We handle the structural route and the rewiring so the door doesn’t just slide, it slides safely and meets current code.

Screen Door Installation
Mission evenings without marine layer are warm enough to leave the slider open, and a good screen door is the difference between that breeze and buying a fly swatter. We build and install custom screens to fit non-standard Mission openings, which is nearly every opening in this neighborhood. Galvanized frames handle the salt-tinged air and morning condensation without rusting out at the corners.

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 Mission District
We are an authorized installer for more than a dozen manufacturer lines, and in the Mission we do the most work with, and CGI. What that means for a Mission homeowner is that we can quote those lines side by side on paper, show you the warranty durations in writing, and get parts locally without waiting on a regional distributor. If your CGI operator binds or a Milgard seal fogged, our access to local factory glazing means faster turnarounds than most shops can offer in the 94110 and 94103 zip codes.
Common Sliding & Patio Doors Problems We See in Mission District Homes
- Roller tracks binding from floor settlement. A century of settling leaves Mission Victorian floors out of level. The slider hangs, the operator wears unevenly, and the door seals fail at the jamb because the whole assembly sits off-square. We shim and square the opening before setting the new track.
- Warped vinyl frames and failed argon on sun-blasted exposures. Twin Peaks shielding means south and west facing frames in the Mission get more solar heat cycling than fogged-in districts. Fusion-welded corners develop hairline cracks, fog builds inside the glass unit, and the argon is gone. We replace with glass packages matched to the actual solar load.
- Threshold flashing failures on shallow stucco walls. Most Mission flats built before 1920 have no weep screed at the patio door opening and only a few inches of stucco over wood framing. Wind-driven rain follows the end grain into the subfloor. We cut out the rot and install proper flashing on a clean, dry surface.
- Lead paint and original single-pane units. Nearly every original Mission window and door has lead paint in the old putty and frame layers. When we uncover lead during a retrofit, we do not sand it or hand the bag to you. We follow current abatement requirements and seal the opening before the new door goes in.
Pricing for Sliding & Patio Doors in Mission District, CA
For the Mission District specifically, Window Installation - Mission District for a standard two-panel patio slider replacement runs $1,800 to $3,600 when the rough opening is sound and no structural repair is required. A heavy-duty or panoramic system typically runs $4,500 to $9,800, depending on frame material, glass package, and panel count. A screen door install runs $250 to $650 for standard builds and $450 to $1,100 for heavy-duty custom frames.
What moves a Mission quote most is what we find behind the plaster. Undersized headers over patio openings, rot at the threshold, and old knob-and-tube wiring in a wall we need to open will add line items; we write a realistic allowance into the contract up front and get written approval before any change order is executed. You’ll see every line item on paper before you pay it. Call (888) 635-0804 for a free estimate. We’ll send a tech who knows this neighborhood’s floor framing, and you’ll get a number that means something.
We Also Serve Cities Near Mission District
We run Sliding & Patio Doors in Mission District and the neighboring communities of Parkway, Arden-Arcade, Ladera Heights, and Commerce. A Mission job often connects to another one across the border; our techs carry the same parts and quotes from Daly City to Noe, and we schedule at the pace your building allows.
Serving Mission District, CA - Our Local Coverage Area
We’re based in the Mission District 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 Mission District
Replacing a patio slider in the Mission District frequently triggers a permit because the opening was framed with undersized, non-standard headers in homes built between the 1890s and 1910s, and opening that wall exposes structural conditions the building department wants inspected. When the header needs reinforcing or there’s knob-and-tube wiring in the cavity, San Francisco’s code review requires the work be permitted and signed off. We handle the permit paperwork and inspections as part of the job; call (888) 635-0804 if you suspect your flat’s rear wall has original framing.
Sometimes, yes. We can often salvage unpainted interior wood trim and restore it rather than replace it, especially the ornate casings common on Mission Victorians. But if the trim has lead paint or sits on a rotted threshold, abatement requirements and structural repair may mean the original millwork does not survive. We’ll tell you before we start, not after.
Drafts at a closed Mission slider usually come from a frame that has flexed under the neighborhood’s thermal cycling. Twin Peaks keeps the Mission brighter than the fog districts, and that daily heat-and-cool cycle warps vinyl-clad frames and opens small cracks at fusion-welded corners, letting air move through the frame itself. A tight new door with insulated glass and a properly shimmed frame stops it, and a door that’s still square is the only kind we set.
For a Mission flat with a narrow rear yard, a panoramic sliding system opens the back parlor to the light without using floor space the way a hinged French door would. It’s worth it if you value daylight and have the wall depth for the pocket. But it is not a budget item; a well-built three-panel system with quality glass runs $6,000 to $11,000. We’d quote it next to a simpler two-panel slider so you can choose with real numbers.
Lead paint is a near-universal condition in Mission Victorians, and when we cut into a wall to install a pocket door we assume it’s present until tested. Our crew follows current lead-safe work practices: containment, no open sanding, and airtight sealing of the opening before the new door goes in. You won’t be left with dust in the house or a test report you have to figure out yourself.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving the Mission District with years of community-rooted glass and door craft.



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