Owens Corning Flashing Replacement Nationwide

Owens Corning Flashing Replacement: The Houston Owner’s Guide

Replacing failed Owens Corning flashing around chimneys, skylights, walls, and valleys in Houston typically runs $275 to $650 per location, fully installed with OEM-compatible materials. We stock common Owens Corning flashing profiles on our trucks, so most Houston homes can have the work completed the same day we diagnose it. Flashing failure is usually discovered as a brown ceiling stain after a hard Houston rain, a curl of metal lifting at the chimney base, or granules from your Owens Corning shingles washing into the gutter.

Call (254) 566-3573

Flashing is the metal that bridges the gaps where a shingle roof meets anything that is not a shingle: a brick chimney, a vent pipe, a dormer wall, a skylight curb. When it fails, water gets behind the roofing system and travels far from the leak source. We have opened Houston ceilings where the visible stain was twelve feet from the failed flashing joint. Greg Holloway walks every flashing job himself, because the worst damage is never visible from the ground.

Which Owens Corning Models This Applies To

Owens Corning flashing replacement is not tied to one specific shingle line. Whether your Houston roof carries Oakridge, Duration, TruDefinition Duration, or the older Berkshire profile, the flashing is independent metalwork that must match the roof’s existing penetration geometry and the slope of your deck. What matters is not the shingle model but the flashing material and profile that was installed, or should have been.

On the compatibility side, here is the checkable detail most homeowners need: Owens Corning VentSure and certain ridge and hip flashing kits are engineered for specific Owens Corning component systems. Where a general-purpose stepped flashing from a supply house will work fine on most brick chimneys, skylight curb flashing for Owens Corning’s own skylights is a different story. The factory curb dimensions changed between skylight generations, and the wrong flashing kit will not seat properly. We measure every curb and match the part before we write a price.

On most flashing locations, quality aftermarket equivalents are as good as OEM and generally cost less. Where we insist on OEM or a direct match is anything branded Owens Corning that is still under its material warranty, and any low-slope transition where the flashing profile is unusual. Tilehurst Roofing Houston is an independent service provider and not affiliated with Owens Corning; we buy through the same distribution channels as any contractor and stock GAF and CertainTeed-compatible flashing alongside our Owens Corning inventory.

Signs Your Owens Corning Flashing Replacement Is Failing

• Ceiling stains that appear after wind-driven rain. Flashing that has lifted or separated often only leaks when rain hits it at a certain angle. A stain that shows up once and then “goes away” for weeks is a flashing leak, not a plumbing issue.
• Visible rust-through or pinholes on chimney flashing. Galvanized flashing in Houston lasts 15 to 20 years before the zinc layer is consumed. After that, rust-through happens fast, especially on south-facing sides where UV exposure is worst.
• Lifted counterflashing at the chimney or wall junction. The counterflashing should sit tight against the masonry or siding. If you can slide a putty knife behind it, water is getting behind it too.
• Missing or broken shingle tabs around a roof penetration. Step flashing is woven into the shingle courses. When the shingle tab covering a flashing step tears off in a Houston storm, the step is exposed and will channel water under the next course down.
• Granules accumulating in gutters directly below a valley or chimney. Some granule loss is normal on an older Owens Corning roof. Granules concentrated at one spot are often the first sign that water is working under the shingle and taking the coating with it.

Replacement Cost & What’s Included

Installed flashing replacement in Houston breaks down like this:

• Pipe boot / vent flashing replacement: $225 to $350
• Step flashing replacement (one wall or chimney side): $275 to $475
• Full chimney flashing rework, including counterflashing: $450 to $800
• Skylight curb flashing replacement: $400 to $750, depending on OEM match requirements

Every one of those numbers includes removal of the failed flashing, inspection and repair of any water-damaged decking in the immediate area, new flashing and sealant, and re-seating the surrounding shingles. Where rotted decking extends beyond the flashing zone, we will show you the damage and give you a written price for the additional board work before we cut anything further. The written guarantee on every flashing repair is delivered before the crew leaves, and if the repair fails inside the one-year window, we return under the 365-Day Done Right Promise at no charge.

DIY or Call Us?

Flashing replacement is not a spring or an electrical hazard, but it is also not a gentle weekend project. The dangerous part is not the flashing itself; it is the ladder work against a chimney or wall edge, the removal of shingles that may be brittle, and the Houston heat that catches people two hours into an afternoon on the roof. If you want to check something before calling, go ahead and look at the flashing from the ground with binoculars: you are looking for lifted metal, visible rust, or missing shingle tabs around the penetration.

What we would not attempt as a DIY repair is anything involving counterflashing that is embedded in masonry, because cutting and re-setting that mortar joint correctly determines whether the chimney leaks again next spring. Pulling one piece of metal usually leads to two more pieces being disturbed, and a bad re-seal job turns a $400 repair into a $1,800 chimney rebuild. If you have found the failed flashing and want it fixed once, call (254) 566-3573 and we will get you a written price. You’ll know the price before we touch the roof.

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