Tamko Flashing Replacement Nationwide

Tamko Flashing Replacement: The Pasadena Owner’s Guide

Tamko flashing replacement in Pasadena typically runs $280 – $460 installed for a standard chimney or pipe boot job, and we carry Tamko-compatible flashing on our trucks so most swaps happen the same day we diagnose the problem. Flashing is the metal or rubber material that seals the joints where your roof meets a chimney, vent pipe, skylight, or wall. When it fails, water gets behind it and starts working on your sheathing long before you see a stain on the ceiling. Most Pasadena homeowners discover the problem after a heavy rain, either from a drip in the attic or a dark water mark running along a wall near the chimney.

Call (626) 389-1956

Key Takeaways

• Tamko flashing failure is usually a sealant or metal fatigue issue, not a shingle problem.
• We stock Tamko-compatible flashing and matching sealants on the truck, so one trip usually gets it done.
• Prices are written before work starts. The number you approve is the number you pay.
• Every flashing repair is covered by our 365-Day Done Right Promise, in writing.

Which Tamko Models This Applies To

Tamko’s flashing requirements vary by roof application, not shingle color or style. If you have Tamko Heritage, Titan XT, or Elite Glass-Seal shingles, the flashing itself is typically a standard galvanized or aluminum profile: step flashing along walls, chimney flashings with counter-flashing, pipe boots for plumbing vents, and headwall or apron flashing where roof meets vertical surface. The shingles you have matter less than the penetration type you’re sealing.

Here’s the compatibility gotcha we see often: Tamko pipe boots are sized by the vent pipe’s outside diameter, and in Pasadena’s older craftsman homes, vent pipes are frequently 3-inch or 4-inch cast iron with an uneven outside surface. That means a one-size-fits-neoprene-boot job will leak again within a year. We measure the actual pipe, not the hole in the old boot, and match the flashing to the real dimension. That’s the difference between a repair that lasts and one that re-leaks after the first Santa Ana wind shifts things.

OEM versus aftermarket for Tamko flashing: Tamko itself focuses on the shingle and underlayment side, and most flashing on Tamko roofs is supplied by third-party metal fabricators. There’s nothing proprietary about the flashing itself. The critical choice is the gauge of metal (we use minimum 26-gauge galvanized, often 24-gauge for chimney work) and the sealant. We prefer a high-quality polyurethane or butyl-backed flashing tape that stays pliable in Pasadena’s heat, paired with a neutral-cure sealant that won’t eat the asphalt in shingles. Cheap silicone or roofing cement from a home center is the number one reason flashing repairs fail early in our climate.

Signs Your Tamko Flashing Replacement Is Failing

• Water stains on ceilings or upper walls. This is the symptom that gets people calling. The stain usually appears below a chimney, against a wall that meets the roof, or under a vent pipe. By the time you see it, water has likely been moving through the flashing gap for weeks. Call us before you paint over it, because the stain will come back if the flashing is still leaking.
• Visible gaps or lifted metal around the chimney. Pasadena’s heat cycles expand and contract metal constantly. After a decade or two, the flashing pulls away from the brick or the sealant bead cracks and separates. If you can see daylight or a gap wider than a pencil lead under the flashing, it’s time.
• Rust streaks or corroded metal near roof penetrations. Galvanized flashing eventually sacrifices its zinc coating and starts rusting, especially on the ocean side of the San Gabriel Valley where morning marine layer moisture sits longer. Rust indicates the metal is thinning and will develop pinholes.
• Granules from shingles collecting in gutters near the flashing. When flashing fails, water runs under shingles and accelerates granule loss. If your gutters are full of dark granules right below a chimney or wall line, the flashing area is the likely source of moisture.
• Damp or musty attic smell after rain. Sometimes the leak never makes it to the ceiling. The water soaks the sheathing, evaporates, and leaves behind a mold smell. If you notice that smell mainly after wet weather, we should inspect the flashing points first.

Replacement Cost & What’s Included

In Pasadena, Tamko flashing replacement costs $280 – $460 for most single-penetration jobs. A simple pipe boot replacement runs $280 – $340. A chimney with step and counter-flashing work runs $400 – $600 depending on chimney size and masonry condition. If the flashing has been leaking long enough to rot the sheathing underneath, add $150 – $300 for decking repair per section.

Every estimate includes the flashing material, matching sealant, fasteners, labor, disposal, and a written workmanship warranty. You get the full price before we touch the roof. If the job requires an extra section of decking repair, we write that into the same estimate and you approve it before anything changes. Our 365-Day Done Right Promise covers every flashing replacement for a full year. If it leaks again within that year, we come back and fix it at no charge. That’s not a promise we make lightly. In our experience, flashing that’s properly measured, properly sized, and properly sealed in Pasadena’s climate holds for 15 years or more.

DIY or Call Us?

You can safely check a few things from the ground: rust streaks on metal, visible gaping under the chimney flashing, or water stains in the attic. You cannot safely do a proper flashing replacement from a ladder. Flashing work happens along roof edges, against chimneys, and around penetrations that sit on sloped surfaces. Pasadena’s older homes often have steep pitches that put you at real risk of a serious fall if you’re not set up with roof brackets and fall protection. Add in the heat radiating off shingles and it’s a bad place to learn on the fly.

The other problem with DIY flashing repairs is sealant choice. Most people grab a tube of black roofing cement, smear it over the old flashing, and call it done. That lasts one season here. Then the Pasadena heat bakes it brittle, cracks open, and the leak comes back worse. We use the right flashing profile for each penetration type, match it to the actual pipe or chimney dimension, and document the work with before-and-after photos so you can see what was done. If you want to call and talk it through first, do it. We’ll tell you honestly whether it’s a job you can delay or something that needs attention now. Call (626) 389-1956.

FAQs