Tamko Flashing Replacement Nationwide

Tamko Flashing Replacement: The Houston Owner’s Guide

Tamko flashing replacement in Houston typically runs $340 to $1,100 installed, depending on the roof penetration type, pitch, and how many linear feet of metal need to come out. We stock Tamko-compatible flashing on our trucks and can match the profile of your existing metal, so most flashing swaps happen in a single visit. You’ll usually find out your flashing has failed the hard way: a water stain on the ceiling after a hard Houston downpour, or a drip near a chimney, skylight, or vent pipe that shows up months after you thought the roof was sound.

Call (254) 566-3573

Flashing is the metal that redirects water at every seam, corner, and roof penetration: chimneys, skylights, vent stacks, dormer walls, and the valleys where two roof slopes meet. When it fails, the shingles might still look fine. The failure is underneath, and by the time you see the stain inside, water has been working into the decking and underlayment for weeks. Houston’s storm cycles make this worse than most places: five months of afternoon thunderstorms followed by intense UV exposure means flashing gets baked, stretched, corroded, and worked loose on an annual rhythm. This is the part we replace more than almost any other on Tamko roofs in Houston, and it’s a repair we write up with a fixed price before any metal comes off.

Key takeaways:

• Installed flashing replacement on a Tamko roof in Houston: roughly $340 to $1,100, depending on scope
• Tamko flashing is matched by profile and metal gauge, not just “sized” generically
• We stock Tamko-compatible flashing and matching sealants on the truck, so most jobs finish in one visit
• Every flashing replacement carries a written guarantee under the 365-Day Done Right Promise

Which Tamko Models This Applies To

Tamko flashing is manufactured to their metal profile specs, and the good news is that Tamko’s flashing lines are built around a few standard metal gauges and widths rather than a dozen proprietary shapes. In practice, that means we can match flashing for virtually every Tamko asphalt shingle line in Houston: Heritage, Heritage Premium, Heritage Woodgate, Elite Glass-Seal, and most of their discontinued lines still on older roofs (such as Heritage 30 and Twinflow). The compatibility gotcha with Tamko is gauge, not shape. Tamko specifies 26-gauge and 24-gauge prepainted galvanized steel for most of their flashing accessories, and if a previous contractor substituted a thinner 28- or 29-gauge piece, that’s often the first flashing to fail on the roof. We see it regularly in Meyerland and Westbury: older Tamko roofs where the chimney saddle is warped and split while the shingles around it still have years left.

To identify the right flashing profile, look for the stamped gauge printed on the back of any exposed metal edge, or measure the thickness with a standard micrometer (26-gauge is about 0.018 inches thick). For pipe boots and vent flashings, match the pipe diameter and the flexible collar material. Tamko uses rubber and synthetic collars depending on the series; synthetic collars hold up better in Houston’s UV, so we steer replacement toward those when we can. As an independent local roofing company, we’re not affiliated with Tamko itself; we carry Tamko-branded flashing plus quality aftermarket equivalents that meet or exceed the same 26-gauge minimum. Either way, the metal comes off clean, the underlayment gets inspected, and the new flashing gets sealed to the roof deck with an elastomeric sealant rated for Houston’s heat and wet-dry cycles.

Signs Your Tamko Flashing Replacement Is Failing

• Interior staining near chimneys, skylights, or vent stacks. This almost always means the flashing step or counterflashing has lifted, cracked, or separated from the penetration. The leak might track along a rafter and show up three feet from the actual failure point.
• Rusted, split, or curled flashing metal visible from the ground or a ladder. Tamko’s prepainted steel flashing is durable, but once the coating is scratched or the metal is worked by heat and wind, Houston’s humidity finishes the job. Rust through the face of the flashing means replacement, not resealing.
• Lifted or loose shingles along roof transitions and valleys. The flashing underneath has often let go first, allowing water to work beneath the shingles and loosen the sealant strip. If you can slip a putty knife behind a shingle at a valley or dormer wall without resistance, the flashing below probably failed.
• Granules collecting in gutters below a flashing joint. When flashing fails, water undermines the shingles at that joint, which accelerates granule loss. If your gutter has heavy granule accumulation under one specific roof transition while the rest of the roof looks fine, suspect that flashing.
• Daylight visible through any roof penetration point. From inside the attic, look around vent pipes, chimneys, and the roof-wall transition. If you can see light, water will follow the same path during Houston’s next storm.

Replacement Cost & What’s Included

In Houston, expect to pay $340 to $1,100 for a Tamko flashing replacement, with most single-penetration jobs (one vent pipe, one skylight saddle, one chimney step and counterflashing run) settling in the $400 to $700 range. Longer chimney saddles, dormer wall flashing, and full valley replacement run toward the top of that range. The three largest cost drivers on a flashing job are linear feet of metal that need replacing, roof pitch (a 10/12 pitch slows the work and raises the labor share), and whether the surrounding underlayment or decking got water-damaged and needs replacement at the same time.

Our flashing replacement price includes the metal, fasteners, sealant, new underlayment where the old flashing lifted it, full removal of the failed flashing, and a written guarantee covering the repair for the full 365 days of the Done Right Promise. If the flashing fails inside that window, we come back and correct it at no charge. You’ll get the written price before we start, and that price doesn’t change at the door. The Kingswell Way is simple: say the price before the work, show up in the window we gave, leave the place cleaner than we found it, put the guarantee in writing, and come back if it fails. We don’t work around that. Greg Holloway walks essentially every flashing job himself before the crew starts, and he’ll explain exactly what’s coming off and why, in plain English, before you ever commit to the work.

DIY or Call Us?

What you can safely check from the ground or a low ladder: visible rust on flashing faces, cracked or broken sealant beads, and shingle lift at roof transitions. What you should not attempt on your own: removing flashing on a sloped Houston roof. Flashing replacement involves pulling up bonded shingles, cutting and bending metal to fit the roof plane, and working near the roof edge. Houston’s high humidity makes roofs slick even when dry, and a fall from a two-story roofline changes a $500 flashing job into a hospital visit. The work also needs a proper sealant application that can’t be inspected by someone without a water test and the right training. If you’re not comfortable working on a roof, you’re in good company; that’s what we’re here for. Call (254) 566-3573 and we’ll get you on the schedule for a free estimate, no cost and no pressure.

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