Tamko Flashing Replacement Nationwide

Tamko Flashing Replacement: The Dallas Owner’s Guide

Tamko flashing replacement in Dallas typically runs $350 – $850 installed, depending on how much flashing needs to be pulled and whether the surrounding shingles are still sound. We keep Tamko-compatible flashing stock on our trucks most weeks, so the job is usually done in a single visit. Most Dallas homeowners discover the problem the hard way: a water stain on the ceiling after a hard Texas rain, or curling shingles near a chimney or wall line that look wrong even from the ground.

Call (903) 499-4275

Flashing is the metal material, usually aluminum or galvanized steel, that sits where your roof meets something vertical: a chimney, a wall, a skylight, a vent pipe. When it fails, water gets under the shingles and follows gravity into your house. Tamko flashing replacement means pulling the old metal, checking the wood beneath for rot, installing new flashing that matches the Tamko shingle profile, and resealing everything so water has no path in. It’s a repair we do regularly in neighborhoods from Lakewood to Richardson, and the failure pattern is almost always the same: years of Dallas sun breaking down the sealant, then one good storm finishing the job.

Key Takeaways:

• Installed Tamko flashing replacement in Dallas runs $350 – $850 on average
• Most jobs are done same-day from truck stock; larger custom flashing may take a measurement visit
• We’re an independent Dallas roofing company – not affiliated with Tamko, but we install their product lines and flashing profiles daily
• Every flashing replacement carries our written guarantee, backed by the 365-Day Done Right Promise

Which Tamko Models This Applies To

Flashing is model-specific in how it’s bent and how it seats against the shingle, but the good news is that Tamko flashing profiles are consistent across their architectural lines. We work with flashing for Tamko Heritage, Heritage Premium, Elite Glass-Seal, and Titan XT shingles. The difference matters: Heritage series uses a standard 1/2-inch reveal bend, while Titan XT’s thicker mat demands a slightly wider step profile so the metal doesn’t bind against the shingle edge in Dallas heat.

Here’s the compatibility gotcha most Dallas homeowners run into: the flashing itself is rarely labeled with the Tamko name. Step flashing and headwall flashing are bent and cut on-site by the roofer, which means the “part” is really a skill set plus the right gauge of metal. What you should look for is the gauge stamp on the old metal if you can see it. Most Tamko installations over the last 15 years used 26-gauge or 28-gauge aluminum or galvanized steel. If your roof is under 10 years old and the flashing has failed, the metal gauge itself is probably fine; the failure is almost always in the sealant or the fasteners. That’s a repair, not a full replacement. If the roof is 20+ years old, we’re usually replacing flashing and shingles together because pulling one without damaging the other gets difficult.

For OEM versus aftermarket: Tamko doesn’t manufacture flashing as a branded retail product. Roofers fabricate flashing on-site to match the shingle profile. So “Tamko flashing” in practice means flashing installed to Tamko’s installation specs, using metal that meets or exceeds their fastening requirements. We stock 26-gauge aluminum and galvanized in standard step, headwall, and pipe-flashing profiles, plus Tamko-branded accessory products like QuickStart starter strips and Leak Barrier underlayment when the repair calls for them. You get whichever matches your roof’s current system, not just what happens to be in the truck.

Signs Your Tamko Flashing Replacement Is Failing

• Water stains on ceilings or upper walls after rain. This is the symptom that gets most people to call. The water trail usually starts at the point where a wall or chimney meets the roofline, then runs along a joist before showing up somewhere unexpected. By the time you see the stain, the flashing has been leaking for a while.
• Curling or lifting shingles near chimneys, walls, or skylights. Shingles don’t curl on their own in one isolated spot. When the metal underneath expands and contracts through Dallas temperature swings, it can push the shingle edges up. If you see a few shingles lifting near a vertical surface, the flashing underneath is the likely culprit.
• Dark staining or rust streaks on the flashing metal itself. Aluminum doesn’t rust, but galvanized steel eventually does, especially in Dallas humidity. Rust means the protective coating is gone and the metal is thinning. When it thins enough, pinholes form, and pinholes leak.
• Dried-out, cracked, or missing sealant around flashing edges. The sealant is the first thing to go. Dallas sun beats down on it for years, and UV light turns it brittle. Once it cracks and shrinks, water wicks into the gap between the metal and the shingle. This is the most common failure we see on roofs that are otherwise in good shape.
• Loose flashing that moves when you press on it. If you’re on a ladder and can gently wiggle the metal with a gloved hand, the fasteners have pulled loose. That usually means the wood underneath is soft or the original nails were overdriven. Either way, it’s not sealing anymore and needs attention before the next Texas gully-washer.

Replacement Cost & What’s Included

In the Dallas market, Tamko flashing replacement for a standard chimney or sidewall run typically lands between $350 and $850 installed. A simple pipe-collar flashing swap on a single vent might run $250 – $350. A full headwall replacement where the flashing has to be cut into the brick or siding and multiple courses of shingles are lifted can push $700 – $900. These are real numbers, not bait: written line-item pricing comes with the estimate before any work starts.

What drives the range? Two things mainly. First, how much of the adjacent shingle field has to be lifted or replaced. Older shingles get brittle in Dallas heat, and lifting them without cracking them is a slow job. Second, the linear footage of flashing. Chimneys have four sides; a single pipe has one collar. The more metal, the more labor, the more cost.

Every flashing replacement we install in Dallas includes the metal, fasteners, sealant, and labor, plus a written workmanship guarantee delivered before the crew leaves the driveway. If that repair fails inside the guarantee period, we come back and fix it at no charge under the 365-Day Done Right Promise. Greg Holloway walks every roof himself before quoting, so the price you get in writing is the price you pay. No change orders at the door.

DIY or Call Us?

You can safely inspect your flashing from the ground with binoculars, or from a ladder if you’re comfortable on one. Look for the symptoms above: cracking sealant, rust streaks, lifted shingle edges near vertical surfaces. What you shouldn’t do is climb onto the roof and start pulling metal. Roof work on any slope is dangerous, and flashing that’s failing is often attached to wood that’s already soft. A misplaced step onto a rotted deck board can put you through the ceiling, and that’s a much bigger bill than a flashing replacement.

We also see DIY flashing repairs go wrong in one predictable way: the homeowner caulks over the old sealant instead of removing it. Caulk over cracked caulk just traps water against the metal and accelerates the failure. If you’ve spotted the problem and want a straight answer on what it will cost to fix properly, call (903) 499-4275. We’ll give you a written price before we touch anything. Price before we touch it. That’s just how a roof conversation ought to start.

How long does Tamko flashing actually last in Dallas weather?

Tamko flashing installations in Dallas typically last 15 – 20 years before the metal needs attention, but the sealant usually fails first, around year 8 – 12. The metal itself can last 30 years or more; what gives out in our climate is the sealant baking in direct sun and the fasteners working loose through repeated expansion and contraction. If your flashing is over 12 years old and you’re seeing staining or lifted shingles near a chimney, plan for replacement sooner rather than later. The repair is always cheaper than the water damage. Call (903) 499-4275 for an honest assessment and a written price.

Can you repair flashing instead of replacing it?

Sometimes, yes. If the metal gauge is still sound and the failure is isolated to sealant or a few fasteners, we can remove the old sealant, refasten the metal, and apply a proper roofing-grade sealant for $150 – $300 in most Dallas situations. If the metal is rusted through, warped, or torn, repair just kicks the problem down the road and you’ll be paying for the same fix again in a year or two. We’ll tell you which camp yours falls in before any work is approved.

How long does a flashing replacement job actually take?

Most flashing replacements on a single chimney, wall line, or vent take 2 – 4 hours on site, with a full day as the outside case if we’re fabricating custom metal or replacing adjacent shingles. The work usually happens in one visit because we keep standard step, headwall, and pipe flashing in truck stock. If your flashing is oversized or requires a custom bend, we measure, order, and install within a week. Call (903) 499-4275 and we’ll give you a straight answer on timing for your specific roof.

Do you stock Tamko flashing or do I need to order it myself?

We handle everything. We stock standard flashing profiles in 26-gauge aluminum and galvanized steel on our trucks, plus Tamko-branded accessory materials like Leak Barrier and starter strips. We also install flashing matched to the other major shingle lines we carry: GAF, Owens Corning, and CertainTeed. You never need to source materials yourself, and you won’t pay a markup for a part we ordered from the same supplier you’d call. The line item shows exactly what the material costs.

If you’re seeing any of the warning signs above on your Dallas roof, don’t wait for the next storm to confirm the diagnosis. Call (903) 499-4275 to schedule a free flashing inspection and get a written estimate. Greg Holloway will walk the roof himself, show you what’s failing, and put the price in your hands before anything gets touched.

Written by Greg Holloway, Owner, Tilehurst Roofing Dallas at Tilehurst Roofing Dallas, serving Dallas and nearby areas.