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PGT Roofing: The San Francisco Owner’s Guide
If you have a PGT roof window, skylight, or vent system and a part has failed, we stock and install PGT-compatible replacement roofing parts across San Francisco, with most swaps running $470 to $2,125 installed depending on the component. Most owners discover the failure the hard way: a water stain on the ceiling after a heavy fog cycle, a glass pane that’s gone cloudy, or a vent flap that stopped sealing against wind-driven rain in neighborhoods like the Outer Sunset or Bernal Heights. The good news is PGT parts are identifiable and replaceable – you just need the right one matched to your unit.
We’re an independent service provider, not a PGT dealer or affiliate. What that means for you is straightforward: we match the correct part to your specific unit, quote the installed price before we touch anything, and stand behind the work with our written guarantee. Curtis Lane and our crew have been working on San Francisco roof systems for over two decades, and we’ve pulled enough failed PGT flashing kits and worn seals off fog-blasted roof decks to know exactly what holds up here and what doesn’t.
Key Takeaways:
- PGT roofing parts in San Francisco typically cost $470 to $2,125 installed, depending on whether it’s a seal, flashing kit, glass pane, or full vent assembly.
- Most PGT failures on San Francisco roofs trace to fog-driven moisture degrading seals and flashing over time, not the glass or frame itself.
- We identify the correct part by the unit’s label, glass dimensions, and series marking before quoting a written price.
- Every completed job carries the 365-Day Done Right Promise in writing, and a live person answers our phone 24/7 at (831) 610-5598.
Which PGT Models This Applies To
PGT’s roofing line in California spans several series, and the part that fits one won’t necessarily fit another. The most common units we see on San Francisco roofs are PGT’s aluminum-frame fixed skylights, venting skylights, and roof windows, with older vinyl-frame units still in service in neighborhoods like the Richmond District and the Excelsior. Identifying your exact model is the first step, because PGT changed frame profiles and gasket geometry between series over the years.
The reliable way to identify your unit is the label. Look for a PGT sticker or etched marking on the interior frame edge or the sash itself. It lists the series, the unit size (in inches, like 22 x 46), and sometimes a manufacturing date. If the label is gone, we measure the visible glass dimensions and the frame depth, then match against PGT’s parts catalogs. One compatibility gotcha: PGT’s impact-rated roof units sold for coastal and high-wind zones take a different gasket profile and a heavier flashing kit than their standard residential line, and installing the wrong gasket will leak within the first fog season. We stock both profiles on the truck so we’re not guessing at the curb.
On the OEM-versus-aftermarket question: PGT’s factory seals, gaskets, and flashing kits are what we recommend for anything that touches weather sealing, because the factory geometry is exact and the UV-resistant compounds are matched to the frame material. For non-structural trim and interior frames, quality aftermarket parts from the same material spec are fine and often knock 15-20% off the part cost. We’ll tell you which is which when we quote it, in writing, before any work begins. Bradford Remodeling also stocks compatible parts for other brands we service, including KraftMaid, Cambria, and Silestone, so if your roof project leads to a skylight trim detail that needs matching, we’re already set up for it.
Styles & brands we work with
Signs Your PGT Roofing Is Failing
- Water staining on the interior drywall or ceiling around the unit. This is almost never the glass – it’s the flashing kit or the curb seal failing where the unit meets the roof deck. San Francisco’s fog cycles keep that intersection damp for days at a time, which accelerates seal breakdown faster than inland locations see.
- Condensation between the glass panes. This means the insulated glass unit’s inner seal has failed. Once that seal goes, the argon or air fill escapes and fog builds between the panes. It cannot be cleaned – the IGU is replaced.
- A venting skylight that won’t close flush or latches loosely. The operator arm, hinge, or gasket has worn. In coastal air, the corrosion on the hardware shows up before the seal does, and a loose vent becomes a wind-driven rain entry point fast.
- Visible daylight at the frame-to-deck junction. If you can see gaps around the flashing from inside the attic, the flashing kit has lifted or the curb has rotted. Fog moisture sits right at that point on older San Francisco roof decks.
- Cracked or crazed frame gaskets that crumble when touched. UV exposure and salt-laden fog degrade PGT’s gasket compound over time. Once the gasket loses its rebound, water follows the frame channel inward.
See the difference
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After
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After
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AfterReplacement Cost & What’s Included
Across San Francisco, PGT roofing part replacement runs $470 to $2,125 installed. The range breaks down by part type: a gasket and seal refresh on a standard fixed skylight sits at the low end, a flashing kit replacement runs mid-range, and a full venting skylight operator assembly with glass IGU lands at the top. If the curb itself needs rebuilding due to rot, that’s roof repair work and we quote it separately using our roof repair pricing of $470 to $2,125 as the anchor.
Every quote is a written line-item price before we start. You’ll see the part number, the part cost, the labor line, and the total – no numbers that move at the door. The installed price includes removing the old part, prepping the frame and curb, installing the new component with the correct sealant and fastener schedule, and a water test on the flashing junction. The work carries the 365-Day Done Right Promise: if it fails within a year of install, we come back and correct it at no charge. A live person answers our phone around the clock – call (831) 610-5598 and you’ll get a real person, not a queue.
DIY or Call Us?
There’s an honest split here. An owner can safely do a visual inspection: check the frame for daylight gaps from the attic side, look for condensation between panes, and pull any debris off the flashing. That tells you what’s failing and gives us good information before we arrive. What you should not do is get on a San Francisco roof deck, especially a steep-pitch roof in fog or wet conditions, to pull flashing or replace a curb-mounted unit yourself. Falls from roofs are a leading cause of serious injury, and the flashing work requires cutting into the roof membrane with the correct sequence to keep the water path moving downhill. Get it wrong and the leak moves inside the wall cavity instead of showing itself at the ceiling.
If you can identify the part, we’ll bring the right one. If you can’t, we’ll come out, ID it, and quote it in writing before any work starts. Either way, the estimate is free – call (831) 610-5598 and we’ll schedule the visit.
FAQs
PGT’s factory gaskets and flashing kits typically hold for 12 to 18 years in San Francisco’s coastal climate, but units exposed to direct afternoon sun on south-facing slopes often show gasket cracking by year 10. The glass itself lasts decades – it’s the rubber and the metal flashing that degrade first.
If your unit is in that age range and showing symptoms, call (831) 610-5598 for an inspection and a written price – we’ll tell you what’s actually failing before you spend anything.
Gaskets and seals can sometimes be re-seated or patched for a short-term fix, but we don’t recommend it as a permanent repair in San Francisco’s damp conditions. Patched seals fail again, usually within one fog season. Flashing kits and failed IGUs cannot be repaired – they get replaced.
Call (831) 610-5598 for an honest assessment of whether your part is a repair candidate or a replacement job.
A gasket and seal replacement on a standard fixed skylight takes one to two hours on site. A full flashing kit replacement runs half a day. A venting assembly with new IGU runs four to six hours, including water testing.
We’ll quote the labor time in writing with your estimate – call (831) 610-5598 to schedule the work.
We stock the most common PGT gaskets, seals, and flashing kits for the series we see on San Francisco roofs. If your unit is a less common size or a discontinued vinyl-frame series, we order the part and usually have it in hand within a few business days.
Call (831) 610-5598 with your model number or the glass dimensions and we’ll check what we have before you book.
If your PGT roof unit is showing its age or you’ve already got water coming in, don’t wait for the next fog cycle to make it worse. Call (831) 610-5598 for a written estimate. Straight number, real scope, no surprises at close-out.
Written by Curtis Lane, Owner, Bradford Remodeling Co – San Francisco, CA at Bradford Remodeling Co San Francisco, serving San Francisco and nearby areas.
