CertainTeed Flashing Replacement Nationwide

CertainTeed Flashing Replacement: The Miami Owner’s Guide

Tilehurst Roofing Miami stocks and installs CertainTeed-compatible flashing replacement for $220 to $480 installed, depending on the location and linear footage, and we can typically get to your roof within a few days of your call. Flashing is the metal or synthetic material that seals the joints where your roof meets walls, chimneys, skylights, valleys, and pipe penetrations, and it’s the first thing to fail during Miami’s wet season. Most homeowners discover they need flashing replacement when they spot a water stain on the ceiling after a heavy afternoon storm, or when they notice lifted, cracked, or corroded metal during a yard inspection. Call (850) 613-1762 for a free estimate, and you’ll have a written price before a single piece of flashing comes off your roof.

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Which CertainTeed Models This Applies To

The flashing components around your roof aren’t always manufactured by the same company that made your shingles, but if your home was built or re-roofed with a CertainTeed system, the flashing should meet CertainTeed’s installation specs to keep the manufacturer’s warranty intact. Common CertainTeed roofing lines in Miami include Landmark, Landmark Pro, Highland Slate, Presidential Shake, and XT 25, and the flashing requirements vary by roof pitch and underlayment. The key compatibility gotcha: CertainTeed’s Miami-Dade County product approvals require flashing with a minimum 4-inch leg height on walls and 8-inch width at valleys to withstand wind-driven rain, which is a tighter spec than generic stock flashing sold at big-box hardware stores. If you’re not sure whether your existing flashing is CertainTeed OEM or an aftermarket match, check the metal for a stamped code or bring a photo and measurement to us. We stock CertainTeed-spec flashing on our trucks along with GAF and Owens Corning equivalents, and we’ll tell you honestly whether the OEM part matters for your roof or whether a quality aftermarket piece performs the same at a lower cost.

Signs Your CertainTeed Flashing Replacement Is Failing

• Water stains on ceilings or walls after rain. This is the most common call we get in Miami, and it usually means the flashing at a wall-to-roof joint or chimney has pulled away or corroded through. The stain often appears several feet away from the actual leak because water travels along roof decking before it drops.
• Visible rust, cracks, or pinholes in the metal. Salt air and relentless humidity in Miami eat through galvanized flashing faster than the manufacturer’s general lifespan estimate. Once you see rust pinholes, the metal is done; patching it is a temporary fix at best.
• Lifted or separated flashing at the drip edge or rake edges. When the sealant degrades or the nails back out, the flashing lifts and leaves a gap for wind-blown rain. You’ll often see this after a tropical storm or a season of intense afternoon thunderstorms.
• Granules from your shingles collecting in the gutter near flashing seams. This usually points to water getting under the shingles at a flashing point, which accelerates shingle wear and eventually delaminates the underlayment below.
• Daylight visible from inside the attic at the roofline. If you can see light through a gap at the wall-to-roof junction, water is getting in, too. That’s a flashing failure, not a shingle failure.

Replacement Cost & What’s Included

For Miami homes, you should expect to pay $220 to $480 for a typical flashing replacement on a single penetration, wall junction, or valley, with more complex chimney and skylight work running higher. The main price drivers are linear footage, roof pitch, whether we need to cut back existing shingles to seat the new flashing, and whether the underlying decking has rotted. We itemize every quote: parts, labor, removal of the old flashing, and a written line-item price you see before any work starts. Every flashing replacement we install includes a written guarantee, and if the repair fails inside the guarantee period, we come back and correct it at no charge under the 365-Day Done Right Promise. That’s the Kingswell Way, and it’s not something we negotiate away.

DIY or Call Us?

You can safely inspect your own flashing from the ground with a pair of binoculars, and you can take photos of anything that looks cracked, lifted, or rusted. What you shouldn’t do is climb onto a Miami roof, especially after rain when tiles and shingles are slick, and start prying up old flashing. The risks are real: falls from roofs send thousands of people to emergency rooms every year, and improper flashing installation can void your CertainTeed warranty and make the leak worse. Greg Holloway, our owner, learned his trade the hard way and has been fixing roofs across Miami for years, including plenty of old barrel-tile homes in Coral Gables where the flashing details are not forgiving. Call (850) 613-1762, and we’ll inspect, measure, quote a written price, and have the repair done right the first time.

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