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Therma-Tru Roofing: The San Francisco Owner’s Guide
We stock and install Therma-Tru-compatible roofing components across San Francisco, with most roof repairs running $470 – $2,125 and full replacements typically landing between $9,440 and $23,600 depending on roof size and pitch. If you’re reading this, you likely spotted a leak, found granules in your gutter, or noticed a section of roofing that’s lifting after one of our wet winters. Most Therma-Tru roofing failures we see in San Francisco start the same way: a small breach at a flashing point or a worn seal that lets fog-driven moisture into the substrate, and by the time it shows up on the ceiling, the underside has been working against you for weeks.
Which Therma-Tru Models This Applies To
Therma-Tru manufactures door and entry systems, not roofing shingles or panels. So if a contractor has quoted you on “Therma-Tru roofing,” there’s a chance they’re using the name loosely, or they’re talking about the roofing components that integrate with Therma-Tru skylights, door overhangs, or entry surrounds. What we handle here is the roofing work that ties into Therma-Tru entry systems: the step flashing at door headers, the drip edge and kickout flashing above Therma-Tru French doors, and the roof membrane repairs that stop moisture from entering at those transition points. We also replace the surrounding shingles, underlayment, and roof decking where they’ve been compromised. The Therma-Tru product itself is the door or skylight; the roofing is the system that keeps it dry. Knowing which side of that line your problem sits on matters, because replacing a $20 piece of flashing is a different job than replacing 18 squares of ridge line.
Styles & brands we work with







Signs Your Therma-Tru Roofing Is Failing
- Water staining above a Therma-Tru door or window. This almost always traces to failed step flashing or a torn kickout flashing at the header, not to the door itself. The door is doing its job; the roof-to-wall transition above it has opened up.
- Granules in the gutter or on the walkway below the roofline. Shingles near entry overhangs take a beating from San Francisco’s wind patterns, especially in the Richmond and Sunset districts. Granule loss means the shingle’s asphalt layer is exposed and UV is breaking it down faster than normal.
- Lifted or curling shingles at roof-to-wall junctions. The most common cause we see in older San Francisco homes is fastener pull-out from repeated expansion and contraction in fog-and-sun cycles. Once shingles lift, water gets under them and the underlayment starts to rot.
- Damp drywall or peeling paint just inside a door frame. That’s the tail end of a roof leak that’s been traveling through the wall cavity for months. By the time paint peels, the substrate behind it typically needs to be opened up and dried.
- Visible daylight through the roof boards in a crawl space or attic. If you can see light, you can see water entry. This is the clearest signal you need a repair, not a maintenance visit.
See the difference
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After
Before
After
Before
AfterReplacement Cost & What’s Included
Roof repair in San Francisco runs $470 – $2,125 for the typical Therma-Tru integration point: flashing replacement, shingle repair, seal replacement, and a localized membrane patch. A full roof replacement runs $9,440 – $23,600 depending on square footage, pitch, number of stories, and whether we’re redecking. Every quote from Bradford Remodeling Co San Francisco is a written line-item number before any work starts. That number includes materials, labor, haul-away of the old material, and a signed written guarantee on completion. There are no numbers that move at the door. Curtis Lane reviews every scope personally before it’s presented to you.
DIY or Call Us?
You can safely check the attic after a heavy rain for wet sheathing, and you can look at the flashing above your Therma-Tru doors from ground level. What you should not do is get on a San Francisco roof with a caulk gun. Most of the roofs we work on are two to three stories up with pitches that turn a simple patch into a fall risk, and much of the real damage is hidden under the first layer of shingles. The part that fails is rarely the part you can see. If you’ve spotted a leak, call (831) 610-5598 and we’ll send someone to do a proper inspection with a written estimate. That estimate is free, and it comes with a straight number.
FAQs

Properly installed step flashing and roof-to-wall transitions typically last 15 – 20 years in San Francisco’s climate, but the fog in the Sunset and Richmond districts shortens that for exposed north-facing slopes. The real failure point is usually the sealant, not the metal, and sealant should be checked every 3 – 5 years, especially after heavy winter rain. Call (831) 610-5598 for a roof inspection and we’ll tell you exactly where you stand.
In most cases, yes. A damaged section of step flashing or a failed kickout flashing can often be repaired without replacing the entire roof-to-wall assembly. If the metal is still sound and the failure is in the sealant or a single torn section, we repair it. If the flashing is corroded or pulling away from the substrate, replacement is the honest call. Either way, you get a written quote before work starts.
A typical flashing or localized repair takes 4 – 8 hours on site, including setup, removal of the damaged section, replacement, and full cleanup. Full roof replacements on San Francisco homes take 3 – 7 days depending on roof size, pitch, and how much decking needs to be replaced. We give you a written timeline with the written price, and the 365-Day Done Right Promise covers every day of the year after we finish.
We keep standard flashing profiles, sealants, underlayment, and the most common shingle colors on our trucks and in our San Francisco yard. That means most repairs don’t wait on a parts order. If your roof uses a specialty profile or a less common color, we’ll source it and give you an honest lead time before we start. We also stock the surrounding systems we install: GAF and CertainTeed roofing materials, and the Therma-Tru door and entry products we integrate with. Alongside Therma-Tru, we work with documented brands like KraftMaid, Cambria, and Silestone when the project moves inside. No guesswork, no substitution without your sign-off.
Written by Curtis Lane, Owner, Bradford Remodeling Co – San Francisco, CA at Bradford Remodeling Co San Francisco, serving San Francisco and nearby areas.


