Tamko Flashing Replacement Nationwide

Tamko Flashing Replacement: The Woodland Hills Owner’s Guide

We stock and install Tamko-compatible flashing, and most residential flashing replacements in Woodland Hills run $350 to $850 installed, depending on the location and how much of the surrounding roof needs to come apart. You’ll usually know it’s failing because you see water staining on a ceiling near a chimney, skylight, or wall joint after rain. Flashing is the metal that seals the seams where your roof meets anything that pokes through it, and when it corrodes or pulls loose, water finds the gap and works its way in.

Call (650) 456-5615

In Woodland Hills, we see two failure patterns over and over. First is simple age: the original flashing on a Tamko roof installed 15 to 20 years ago has been baking in San Fernando Valley heat, and the metal has thinned or the sealant has turned brittle. Second is wind-driven rain from the Santa Ana season, which finds small separations that a normal rain never would. Either way, the part is done, and the fix is replacing it, not caulking over it.

We’re an independent roofing contractor, not affiliated with Tamko, but we install and repair around Tamko shingles every week and keep the common flashing profiles and sealants on our trucks. If you’re seeing water where it shouldn’t be, call us at (650) 456-5615 and we’ll give you a written price before any work starts.

Key takeaways:

• Most Tamko flashing replacements in Woodland Hills run $350 to $850 installed.
• The biggest cost driver is location: chimney and wall flashing costs more than pipe boot flashing.
• You get a 365-day repair warranty in writing, included on every job.
• We carry common flashing profiles and Tamko-compatible sealants on the truck, which means most repairs are one visit.

Which Tamko Models This Applies To

Flashing replacement isn’t tied to one specific shingle line, but the installation details change based on which Tamko product is on your roof. We work around the full Tamko lineup in Woodland Hills, including Heritage, Heritage Woodgate, MetalWorks, Elite Glass-Seal, and Lamarite. The flashing requirement is the same no matter the model: metal that bridges the joint between the shingle and whatever vertical surface or penetration it meets.

Here’s the compatibility gotcha most homeowners miss: Tamko’s architectural shingles ride slightly thicker than a standard three-tab, especially the Heritage line with its built-in shadow bands. That thickness affects how step flashing seats against the shingle course. If a previous roofer used flashing cut for a thinner shingle, the step flashing doesn’t lay flat, and wind can fold it outward over time. When we replace flashing on a Tamko roof, we confirm the profile matches the shingle’s actual installed thickness, not just a generic code minimum.

Another checkable specific: the California Building Energy Code and local Woodland Hills roofing practices call for flashing to extend a minimum of 4 inches up a vertical wall and to overlap the lower flashing course by at least 3 inches. Cheap repairs skip those overlaps, and the first hard rain finds the gap. For the OEM-versus-aftermarket decision, Tamko doesn’t actually manufacture the flashing itself; they specify metal gauges and profiles that work with their shingles. We use 26-gauge galvanized steel or aluminum flashing that meets or exceeds the manufacturer’s installation specs, and we match the sealant system to what Tamko’s warranty documentation calls for at roof penetrations.

Signs Your Tamko Flashing Replacement Is Failing

• Water staining on ceilings or walls after rain. This is the headline symptom. The stain usually appears in a line or a corner, not a random blotch, because water tracks along a framing member after it slips past failed flashing.
• Daylight visible in the attic at a wall or chimney joint. If you can see light coming through where the roof deck meets a vertical wall, the flashing has separated from the deck, and it’s only a matter of time before water follows the same path.
• Lifting or curling step flashing along a dormer or chimney. Walk the perimeter of the house with binoculars. If the small metal pieces that step up the wall joint are no longer flat, wind has gotten under them and broken the sealant bond.
• Cracked or missing sealant around pipe boots and vent pipes. In Woodland Hills, the UV exposure on a south-facing roof breaks down sealant faster than the metal itself. The rubber boot around the pipe dries out, cracks, and the joint leaks.
• Rust staining on metal flashing or nails backing out through the shingles above a wall. Rusted flashing has already thinned to the point where pinholes are forming. When the nails holding the roof deck near a wall line are popping up, water is getting into the deck and swelling the wood.

Replacement Cost & What’s Included

In Woodland Hills, a standard pipe boot flashing replacement runs between $350 and $550 installed. Step flashing along a chimney or sidewall runs $550 to $850 because we have to cut into the wall stucco or siding, remove the old flashing, install new step flashing with proper overlaps, and then re-seal the wall with a weatherproof membrane. If the decking underneath has rotted, add $120 to $180 per 4×8 sheet of plywood we replace.

Every quote includes the new flashing, the sealant system, all removal and disposal of the old material, and a written workmanship warranty that covers the repair for 365 days. You receive the price in writing before we start, and the number on that page is the number on the invoice. No change orders that show up at the end. Dylan Pace has built the Woodland Hills crew around that principle: every promise we make goes in writing, because a handshake doesn’t keep the rain out.

DIY or Call Us?

You can safely do the detective work: go into the attic on a dry day with a flashlight and trace water stains to their source. Check for daylight at wall and chimney joints. Walk the perimeter with binoculars and look for lifted step flashing. None of that requires a ladder. What we don’t recommend is a homeowner pulling up shingles and re-seating step flashing themselves. You’re working on a sloped surface, often near the edge, and if the flashing is seated wrong, the leak you “fixed” will show up six months later as a much bigger water stain on a ceiling below.

If you see the signs, call (650) 456-5615 and schedule a free inspection. We’ll confirm the diagnosis, show you photos of the failed flashing on the spot, and hand you a written quote before any work starts.

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