Metal Roof Repair

Metal roofs need far less maintenance than shingles over their working life, but when something does go wrong, it's usually a specific, identifiable failure — not the broad, gradual wear you see across an aging shingle roof. That difference is exactly why metal roof repair calls for a different skill set than general roofing work.

Common Metal Roof Problems

• Loose or failed seams. On standing seam roofs, the interlocking seams are what actually keeps water out. A seam that wasn't crimped correctly during installation, or that's worked loose after years of expansion and contraction, gives water a path in along the seam line.
• Fastener backout and gasket failure. Exposed-fastener panel systems depend on rubber washers under every screw. Those gaskets compress, crack, and shrink with age — typically starting around year 10 to 15 — and each failed gasket becomes a potential leak point. This is by far the most common repair on exposed-fastener metal roofs.
• Oil-canning. A wavy or rippled look in flat panel sections — usually cosmetic rather than structural, though sometimes a sign the panels weren't given enough room for thermal movement during installation.
• Rust and corrosion. More common on older galvanized steel, at cut edges where the protective coating has been compromised, or anywhere two dissimilar metals are touching and driving galvanic corrosion. Caught early, affected panels can often be treated or swapped individually rather than requiring a full re-roof.
• Punctures and impact damage. Hail, falling branches, or foot traffic from other trades (satellite techs, HVAC crews) can dent or puncture panels, particularly on lighter-gauge material.

What Metal Roof Repair Costs

Metal roof repair typically runs $5 to $10 per square foot, higher than standard shingle repair given the material cost and specialized labor — sourcing a matching panel profile and finish, working safely on a smooth metal surface, and resealing seams or fasteners correctly without creating a new leak point in the process. A single fastener or seam repair on an otherwise sound roof is a small job; a repair involving panel replacement or corrosion treatment across a bigger area costs more, closer to what a shingle repair of similar scope would run.

Why It Matters Who You Hire

Metal roofing isn't installed or repaired the way asphalt shingles are, and a repair done by someone unfamiliar with the material can introduce new problems — a seam resealed incorrectly, a fastener pattern that ignores thermal expansion, or a patch that looks fine on day one but doesn't actually move the way the rest of the panel does. If your roof is metal, it's worth confirming upfront that your contractor works with metal regularly, not just occasionally.

Repair vs. Replace

Most metal roof problems are genuinely repairable — a failed seam, a handful of backed-out fasteners, or an isolated rust spot don't call for replacing the whole roof, which is one of metal's real advantages over shingles. Replacement becomes the better conversation once corrosion has spread across multiple panels instead of staying isolated, once the structure underneath has been compromised by long-term water intrusion, or once the roof is old enough that sourcing matching panels for a clean repair isn't realistic anymore. A simple guideline: if repairs are addressing new, isolated problems, keep repairing. If the same spots keep failing or damage keeps spreading despite repair work, that's usually a sign the roof itself — not just one section of it — is nearing the end of its service life.

Maintenance That Prevents Repairs

A yearly visual check catches most metal roof issues while they're still small and inexpensive to fix — loose fasteners, early gasket wear, debris buildup in valleys, and the first signs of rust before it spreads. Keeping the roof clear of leaves and branches matters more here than it does on shingles, since trapped debris holds moisture directly against the metal and speeds up corrosion right at the contact point. For exposed-fastener systems specifically, budgeting for gasket replacement around the 10 to 15 year mark — before they fail rather than after — is the single most effective way to avoid a leak from that cause altogether.