IKO Flashing Replacement Nationwide

IKO Flashing Replacement: The Los Angeles Owner’s Guide

Replacing IKO roof flashing in Los Angeles typically runs $350 – $900 installed, depending on the flashing type and how much surrounding shingle work is involved. We keep common IKO-compatible flashing profiles on our trucks, so most repairs are finished the same day we arrive. You’ll usually discover the problem the hard way: a water stain on the ceiling after the first real rain, a curl of metal lifting near the chimney, or granules collecting in the gutter below a valley. Flashing is the sheet metal that redirects water where the roof meets something vertical, and when it fails, the leak is rarely more than a few feet away.

Call (213) 674-2890

Which IKO Models This Applies To

IKO manufactures asphalt shingle lines and underlayment systems, and the flashing work we do applies across their full residential range: Cambridge, Dynasty, Nordic, Royal Estate, and Marathon lines included. The flashing itself isn’t made by IKO in most cases. It’s fabricated from galvanized steel, aluminum, or copper, sized to work with any IKO shingle course. The compatibility question isn’t the shingle brand so much as the roof detail: step flashing along a sidewall runs 4x4x8 inches per piece, chimney counter-flashing is cut to the masonry chase, and valley flashing widths depend on roof slope and local wind exposure. If you have leftover shingle bundles, check the wrapper label. IKO prints the series name and color code there, and we can match the repair area to your existing roof without sending a sample to a lab.

On the OEM-versus-aftermarket point: IKO doesn’t sell its own branded flashing line, so no one is installing “official IKO flashing.” What matters is metal gauge, material type, and whether the installer uses the right profile for the detail. We fabricate or source flashing to spec, and we’ll tell you plainly when a heavier-gauge metal is worth the extra money. Copper lasts longest in Los Angeles coastal air but costs three to four times what galvanized steel does. Aluminum is the practical middle option for most homes. Tilehurst Roofing Los Angeles is an independent service provider and isn’t affiliated with IKO, GAF, Owens Corning, or CertainTeed, though we work with materials from all of them.

Signs Your IKO Flashing Replacement Is Failing

• Interior staining near a wall or chimney after rain. Flashing failures usually show up as a brown watermark on the ceiling within two feet of the vertical surface. The metal has separated or corroded, and water is tracking down the roof deck until it finds a seam.
• Visible rust or pinholes on exposed flashing. Los Angeles may not see heavy rain, but our marine layer and UV exposure cycle metal through constant expansion and contraction. Rusted-out step flashing is the most common call we get in older San Fernando Valley homes.
• Lifted or curled flashing edges at the roof-to-wall junction. Wind-driven rain in places like Porter Ranch or the foothills works under loose flashing every time. If you can see daylight under the metal, water has the same view.
• Granule buildup in gutters below valleys or dormers. Failing flashing often accelerates shingle wear underneath it. The granules collect below the problem area, not spread evenly across the gutter run.
• Caulk or sealant smeared along flashing seams. A previous owner or handyman tried to patch a leak with roofing cement instead of replacing the metal. It holds for a season, then cracks, and the leak returns worse than before.

Replacement Cost & What’s Included

Here’s what IKO flashing replacement in Los Angeles costs in real dollars, based on the work we do most often:

• Step flashing replacement (one sidewall): $350 – $550 installed, including shingle lifting, new flashing pieces, and resealing the course.
• Chimney flashing (step and counter-flashing): $600 – $900 installed. Chimney work is slower because we cut the counter-flashing into the brick chase rather than surface-sealing it.
• Valley flashing replacement: $500 – $800 installed. The valley metal sits under the shingles, so the shingle course along the valley has to be removed and reinstalled.
• Pipe boot or vent flashing: $250 – $400 installed. Smaller job, but the part fails more often than people expect.

The price you get from us is written down before any work starts, and it includes labor, materials, cleanup, and the written guarantee on the repair. If the flashing 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 floor of how we work, not an upsell.

DIY or Call Us?

You can safely inspect your own flashing from the ground with binoculars or from a ladder placed on level ground. Look for lifted metal, visible rust, missing pieces, and caulk that’s cracked or pulling away. What you shouldn’t do is climb onto the roof and start pulling shingles. Flashing work on a roof slope over about 6:12 puts you at real risk of a fall, and a fall from roof height is a life-changing injury, not a sprained ankle. Beyond the safety issue, the failure most homeowners create is peeling back shingles to expose flashing and then not resealing the course correctly. The leak that follows costs more to fix than the original flashing replacement would have. If you’re not sure whether what you’re looking at is flashing failure or something else, call (213) 674-2890. We’ll walk you through what we’d look for, and if a repair makes sense, we’ll put the price in writing before we touch the roof.

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