Boral Flashing Replacement Nationwide

Boral Flashing Replacement: The Miami Owner’s Guide

Boral flashing replacement in Miami typically runs $280 to $640 installed for a standard valley, wall, or chimney flashing section, and our crews stock Boral-compatible flashing profiles on the truck so most jobs finish the same day we arrive. The part itself is usually under $90; what you’re paying for is the careful removal of the old, corroded metal, the prep work underneath, and an install that keeps water out through three or four Miami hurricane seasons. Most homeowners discover this part has failed after a storm, when a water stain appears on the ceiling near a chimney, a skylight, or where a roof wall meets the house.

Call (850) 753-2996

Key takeaways:

• Installed cost in Miami: $280 – $640 for a typical flashing section replacement
• Parts rarely exceed $90 at retail; labor and prep drive the price
• We carry Boral-compatible flashing profiles on the truck for same-day repairs
• Written price before we touch the roof, and a 365-Day Done Right Promise on the work

Which Boral Models This Applies To

The flashing on a Boral roof isn’t tied to one shingle line; it’s tied to the roof’s architecture. Whether your home wears Boral’s concrete tile, barrel tile, or composite slate profiles, the flashing is the metal work where the roof meets a vertical surface: chimney bases, side walls, valleys, skylight curbs, and pipe penetrations. What matters for compatibility is the flashing’s gauge, profile, and material, matching what was installed with the original Boral system in your neighborhood. In Miami, we work on homes from the 1980s through 2024 builds, and the Boral flashing spec depends on the tile profile’s depth: barrel tile roofs need deeper, stepped flashing with a wider horizontal flange, while flat tile accepts a lower-profile reglet flashing.

OEM Boral-branded flashing is still available for many current line series, including Boral Steel and Boral Mission tile profiles, but on older installations, a quality aftermarket flashing matched to the original gauge is often the better call. The metal bends the same, and a thicker 26-gauge or 24-gauge galvanized or galvalume replacement will last longer in Miami’s salt air than the original 28-gauge some builders used. The gotcha: a flashing that’s too shallow for the tile profile creates a gap behind the tile course, and water finds it within one rainy season. We measure tile depth and existing flashing channel on-site before ordering anything.

Signs Your Boral Flashing Replacement Is Failing

• Water staining on ceilings near chimneys or wall joints – This is the classic first indicator. Flashing pulls away from mortar joints as Miami’s heat cycles expand and contract the metal, opening a capillary path for water.
• Rust running down from a flashing seam – Once galvalume coating breaks down in salt air, rust follows within 12 to 18 months. Red-brown streaks on tile below a flashing line are a tell that the metal is compromised.
• Visible gaps between flashing and mortar – Chimney flashing is set into a reglet cut, but old mortar cracks and falls out. Look for a visible separation where the flashing enters the mortar joint.
• Loose or lifted flashing edges after wind events – Hurricane-force gusts work the exposed edge of step flashing. If you can see daylight under an edge from ground level, water is getting behind it.
• Granule loss or moisture damage on the tile course directly above the flashing line – Trapped moisture bubbling under tile edges indicates water is being held against the substrate, often from failed flashing rather than the tile itself.

Replacement Cost & What’s Included

Here’s how typical Boral flashing replacement prices in Miami break down:

• Valley flashing (per 8-foot section): $240 – $380 installed
• Wall/sidewall step flashing (per 10-foot run): $280 – $430 installed
• Chimney flashing (full base, counter, and cap): $480 – $760 installed
• Pipe boot or small penetration flashing: $120 – $220 installed
• Re-bedding and sealing existing flashing (when salvageable): $140 – $260

What drives the range: roof pitch and height, how much existing flashing must be cut out cleanly, whether the tile course above can stay or must be lifted, and whether we’re also replacing any rotted roof decking beneath. Every job includes a written price before work starts, replacement flashing matched to your Boral tile profile, fresh sealant where required, and our 365-Day Done Right Promise: if the repair fails within a year, we return and fix it free. No line-item surprises on the final invoice.

DIY or Call Us?

Walking your roof with a pair of binoculars to check for lifted edges or rust streaks is safe and worth doing. What’s not worth doing is prying up tile and flashing yourself on a two-story Miami roof when the tile is hot and the pitch is steep. The torque of lifting a Boral barrel tile wrong can crack the tile above it, your ladder can slide on the same tile dust that every Miami roofer knows, and a botched flashing channel means you’ll be up there again in six months. Grant Whitlock has walked enough Miami roofs to know where flashings fail first, and he’ll tell you straight if the old flashing can be cleaned, re-bedded, and sealed, or if it’s time to pull it and replace. Call (850) 753-2996 and we’ll put a number in writing before anyone touches a tile.

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