Tamko Flashing Replacement: The New York City Owner’s Guide
Tamko flashing replacement in New York City typically runs $340-$780 installed, depending on the location and whether we’re working around existing shingles or siding. We stock Tamko-compatible step flashing, counter flashing, and drip edge profiles on every truck, and most replacements are completed in a single visit. Homeowners usually spot the problem first as a water stain spreading across a ceiling or a musty smell in an upstairs closet - signs that the metal barrier between your roof and wall has corroded, lifted, or separated.
Which Tamko Models This Applies To
Tamko’s flashing systems pair with their Heritage, Heritage Vintage, Heritage Woodgate, and Titan XT shingle lines, but the critical match isn’t the shingle brand - it’s the profile dimension and the wall or chimney configuration. Step flashing for a standard brick veneer in Queens requires a 4×5-inch minimum bend with a 90-degree throat, while the older row houses out in Sunset Park often need custom-fabricated counter flashing with a reglet joint because the original masons set the brick tight to the roofline.
We carry both OEM Tamko galvanized steel flashing and quality aftermarket equivalents from independent metal shops in the Bronx. The aftermarket pieces match the 26-gauge spec and Kynar finish, but we always verify the bend angle against what’s on your roof before we leave the shop. One compatibility gotcha we’ve learned: Tamko’s newer Heritage Vintage line uses a slightly wider exposure than the original Heritage, so reusing old step flashing during a partial repair almost always leaves a gap. We measure on-site and cut to fit.
Signs Your Tamko Flashing Replacement Is Failing
- Water stains on interior ceilings or walls below roof-wall junctions. The flashing’s seal has broken, letting runoff wick behind the siding or brick. In New York City’s freeze-thaw cycles, this accelerates - one winter of trapped moisture can turn a small gap into rotted sheathing.
- Rust streaks running down exterior walls from chimney or dormer corners. Galvanized flashing loses its protective coating after 15-20 years of salt air and acid rain exposure. Once rust appears, the metal is thinning and will soon perforate.
- Lifted or curled shingle edges along valleys or walls. Flashing that wasn’t properly fastened works loose as the building settles, especially in older Brooklyn and Bronx frame structures. The gap underneath becomes a funnel for wind-driven rain.
- Musty odors or visible mold in attic corners. Slow, chronic leaks from failed counter flashing don’t always show up as drips. They raise humidity first, which is why we photograph attic conditions during every inspection.
- Daylight visible between chimney mortar and metal flashing. This means the flashing has pulled away or the sealant has hardened and cracked. It’s the most common call we get after a Nor’easter, when homeowners finally notice the draft.
Replacement Cost & What’s Included
| Service | Typical Range |
|---|---|
| Step flashing replacement (standard wall, per linear foot) | $28-$45 |
| Chimney counter flashing (cut and reglet) | $380-$720 |
| Drip edge replacement (gable or eave) | $12-$22 per linear foot |
| Full perimeter flashing on small row house | $1,400-$2,600 |
What drives the range: accessibility (steep pitches or tight alley setups in Manhattan take longer), whether we need to remove and reset siding or masonry, and if the underlying sheathing has rotted. Our estimate includes the metal, fasteners, sealant, and labor - the number we quote is the number on the invoice. Every flashing job carries our 90-Day Done Right Promise: if water gets through, we come back and make it right, no paperwork runaround.
DIY or Call Us?
There’s honest work a homeowner can do: check your attic after heavy rain, look for rust from the ground with binoculars, and clear debris from valleys so water flows where it should. But flashing replacement means working at height, often on a slope, with sharp metal edges and the risk of damaging shingles you’ll then need to match. In New York City, add ladder permits for certain elevations and the liability of working over sidewalks or neighboring properties.
We don’t recommend DIY for chimney counter flashing or any repair requiring sealant work at the roofline. The stakes are too high - one misaligned piece and you’re channeling water into the wall cavity. Our crews carry the right brake tools, the right gauge metal, and the experience to spot rot before it’s covered up. Call (866) 756-1978 and we’ll give you a straight answer on whether it’s a quick fix or something bigger.
FAQs
Galvanized steel flashing typically holds 18-25 years in the five boroughs, though salt air in coastal Queens and Staten Island can shorten that by a third. The Kynar-coated aluminum options we install now carry a 30-year finish warranty and resist the acid rain that eats standard galvanized. Call (866) 756-1978 for an exact assessment of what’s on your roof.
Small sealant failures at the top edge can be patched if the metal itself is sound, but rust, holes, or separated seams mean replacement. We’ve learned that half-measures on flashing almost always leak again within two years - and usually during the worst storm of the season. We quote replacement honestly so you’re not calling us back.
Most step flashing repairs are done in two to four hours. Chimney counter flashing with masonry work takes a full day. We arrive with the metal pre-cut and bent, and we don’t leave until we’ve water-tested the joint and shown you the photos. Same-day scheduling is available when you call (866) 756-1978.
Yes - we carry step flashing, drip edge, and standard counter flashing profiles in 26-gauge galvanized and Kynar-coated aluminum. For custom masonry reglets or unusual color matches, we fabricate overnight at a local sheet metal shop. We’re an independent service provider, not affiliated with Tamko, but we’ve installed their products since they first entered the New York City market.
A roof doesn’t lie. Neither do we. If your Tamko flashing is showing age, we’ll tell you exactly what we see, what it costs, and what happens if you wait. No pressure, no surprises - just the same square deal we’ve offered since 2016.
Ready to stop the leak for good? Call (866) 756-1978 now. A live person answers 24 hours a day, including weekends and storms. We’ll schedule your free estimate, send a background-checked technician in uniform, and back the work with our written 90-Day Done Right Promise. Ridgeline Roofing Co. of New York City - founded in 1984, still here, still climbing.
Written by Sal Benedetto, Owner, Ridgeline Roofing Co. of New York City at Ridgeline Roofing Co. of New York City, serving New York City and nearby areas.