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PGT Construction in San Francisco, CA | Silver Line Contractors
We provide independent PGT window and door installation, repair, and replacement across San Francisco, from the row houses of the Richmond District to the hillside lots of Noe Valley. The one thing that makes our PGT work here different is that we plan every job around the city’s two defining realities: marine fog that rots wood and feeds mildew year-round, and a Building & Safety review process that treats even a window swap on a 1905 Victorian as structural work. If you need a straight repair-or-replace call on a PGT window or door, call (833) 400-1314 for a free estimate. We’re independent, so the answer you get is the one that serves your house, not a manufacturer’s sales quota.
Why San Francisco Residents Choose Us for PGT Service
We’ve spent years installing and servicing PGT windows and doors across San Francisco’s tricky housing stock, from Victorian-era row houses to hillside infill. That reps-and-warranty depth means we know the PGT WinGuard Impact Series, Architectural Series, Premier Series, and the WinGuard sliding door lines from the inside out, not from a spec sheet. Noel Carvalho, our owner and our General Contractor in San Francisco, grew up in Gilroy watching his father patch and improve the family home on weekends, and he studied construction technology at Gavilan College before running every phase of residential builds across the South Bay. Good construction doesn’t need a sales pitch, the work explains itself. We carry that same mindset into every PGT job: diagnose the real problem, use OEM PGT parts when they’re available, and only recommend replacement when repair cannot restore the window or door to full function. For San Francisco homeowners, that means no manufacturer-approved upsell, no generic advice, and no guesswork about whether a fogged glass unit can be saved or the whole sash needs to go.
Styles & brands we work with







Common PGT Construction Problems We Solve in San Francisco
- Condensation and mold inside vinyl frames. Marine fog and damp Pacific air push moisture into the hollow chambers of PGT vinyl windows, especially on north and west facades where sun never dries them out. We see black mildew at the weep holes and track corners on houses in the Sunset and Parkside. Fixing it starts with pulling the sash, cleaning the frame interior, and replacing worn weatherstripping so the drainage path actually drains.
- Wind-driven rain at sliding door tracks. San Francisco’s winter rains come in sideways on windy hillside streets, and that water gets driven into PGT sliding door tracks and corner seals. On older wood-frame homes, the water doesn’t just puddle, it soaks the wall framing behind the track. We repair or replace the track, re-flash the opening, and check the surrounding framing for rot before it spreads.
- Racked and twisted frames on hillside lots. Soft bay-fill soil and steep lots settle unevenly, and that movement twists PGT window frames out of square. Sashes stick, weatherstripping tears, and locks stop lining up. We re-shim and re-square the frame where possible, and on newer hillside homes we flag the settlement so the underlying cause gets addressed before the next PGT unit fails.
- Wood rot at sills and jamb joints on aluminum-clad PGT. The Architectural Series aluminum-clad wood windows look clean, but persistent damp and the lack of freezing temperatures mean rot marches on year-round at the sill and jamb joints. We catch it early, cut the rot out, and epoxy or rebuild the affected wood before re-installing the sash.
- Fogged glass units. When the seal fails on a PGT insulated glass unit, fog forms between the panes and the view goes hazy. On San Francisco’s older homes, failed seals are common after 15-20 years of temperature swings between foggy mornings and occasional heat. We replace the sealed unit and the sash components, saving the frame when it’s still sound.
PGT Service in San Francisco: What Local Conditions Mean for Your Equipment
San Francisco’s Building & Safety plan-review and inspection culture is so rigorous that any PGT window or door replacement on a pre-1906 wood-frame house often triggers a full seismic retrofit review if the work involves more than a simple like-for-like swap. That’s not true in Daly City or South San Francisco, but it’s the rule here when you’re working on a 1890s Edwardian with PGT in Mission District or an earthquake shack in Bernal Heights. What it means for PGT owners is that the window job rarely stays just a window job. We prepare permit packages that anticipate structural upgrades, from foundation bolting to shear-wall call-outs, and we sequence PGT installations so the window work doesn’t get stalled by an inspector’s retrofit requirement. On one steep Pacific Heights street, we replaced a failing PGT WinGuard sliding door in a 1920s wood-frame home where the track had corroded and water was leaking into the adjacent wall. After discovering rot in the rim joist, we sistered the framing, installed a new OEM track and rollers, and re-flashed the opening to handle wind-driven rain, all while coordinating a crane permit for material staging because street parking was impossible. The homeowner now has a door that operates smoothly and a dry wall, even during the rainy season.
PGT Models & Products We Service in San Francisco
We service the full PGT residential line you’re most likely to find in San Francisco: the WinGuard Impact Series in vinyl and aluminum, the Architectural Series aluminum-clad wood windows, the Premier Series vinyl line, and the WinGuard and Estate sliding glass doors. For parts, we source OEM PGT components like rollers, weatherstripping, and hardware whenever available because that’s the only way to get a precise fit on these engineered frames. When a part is obsolete, as happens with older WinGuard units, we use high-quality aftermarket equivalents selected for how they’ll hold up in San Francisco’s damp climate, not just what’s cheapest. We stock common PGT rollers, locks, and weatherstripping locally so San Francisco turnaround stays fast, and for full window replacements we order directly from PGT with lead times quoted before we start. If you’re unsure which PGT line you have, call (833) 400-1314 and we’ll identify it from the frame sticker or your paperwork. You can also see the full scope of what we handle on our PGT sales & service page.
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AfterPGT Service Pricing in San Francisco
PGT service costs vary by what’s actually wrong, but here’s how it breaks down for the jobs we do most often in San Francisco. A fogged glass replacement runs less than a full window swap, but on a house near the oceanfront where every opening faces wind-driven salt air, replacing the whole unit sometimes makes more sense than patching a 20-year-old frame. Every free estimate includes a site visit, a written line-item quote, and a straight answer on repair versus replace.
| Service | Price Range |
|---|---|
| Window Replacement | $5,310 – $17,700 |
| Impact Window Installation | $9,440 – $29,500 |
| Roof Repair | $470 – $2,125 |
| Home Addition | $53,100 – $153,400 |
What moves the number is the scope: a single window on a ground-floor flat is far less than a full-floor impact window package on an upper-story hillside house that needs a crane permit. Call (833) 400-1314 and we’ll give you an exact quote for your San Francisco property.
Serving San Francisco, CA — Our Local Coverage Area
We’re based in the San Francisco 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 – PGT Construction in San Francisco
Can you replace just the glass in my PGT window if it’s fogged, or do I need a whole new unit? In most cases we can replace just the insulated glass unit if the frame and sash are still square and the weatherstripping seats well. If the frame is racked from hillside settling or the sash corners are water-damaged, a full unit replacement is usually the better long-term call. Call (833) 400-1314 for a free evaluation and we’ll tell you which one applies to your window.
My PGT sliding door is hard to open – can it be repaired or does it need to be replaced? Most hard-to-open PGT sliding doors can be repaired. The usual culprits are worn rollers, corroded tracks, or settlement that’s thrown the frame out of square, all of which we fix regularly in San Francisco. If the frame itself is rotted or the glass are fogged too, replacement may be more cost-effective, and we’ll be straight about that. Call (833) 400-1314 for a no-cost assessment.
Do I need a permit to replace my PGT windows in San Francisco? Yes, in most cases you do. San Francisco Building & Safety treats window and door replacements on pre-1906 wood-frame houses as structural work, especially if the opening size changes or the work touches shear walls. We handle the permit package and inspections as part of your contract. Call (833) 400-1314 and we’ll tell you exactly what your specific job requires.
What’s the best way to stop condensation and mold on my PGT vinyl windows? The condensation itself comes from San Francisco’s marine fog meeting warm interior air, and the fix is twofold: improve the interior air circulation and rebuild the window’s drainage path. We clean the weep holes, replace worn weatherstripping, and sometimes adjust the interior humidity with a dehumidifier or better bath fan ventilation. Call (833) 400-1314 and we’ll inspect the specific units that are giving you trouble.
Can you match my existing PGT window style for an addition on my San Francisco home? Yes. We match existing PGT lines, glass packages, and frame finishes on San Francisco additions, which matters more here than elsewhere because so many homes have historical or neighborhood design review requirements. We’ll bring samples and spec sheets to your site before you commit to anything. Call (833) 400-1314 to schedule a free match-up visit.
Service Areas Near San Francisco
Beyond our San Francisco work, we serve homeowners throughout the South Bay and surrounding communities. If you’re in Gilroy, San Martin, Aromas, Morgan Hill, Interlaken, or San Juan Bautista, we handle PGT service there too. See our San Francisco service area page for full coverage details, plus our PGT service in Chinatown and PGT service in Tiburon pages for neighborhood-specific information.
Book Your PGT Service in San Francisco Today
If a PGT window or door is failing at your San Francisco home, call (833) 400-1314 for a free estimate. We’ll come out, diagnose the issue, and give you a written line-item quote with no obligation.
Written by Noel Carvalho, Owner at Silver Line Contractors, serving San Francisco since day one.