Metal Roof Repair in Los Angeles, CA

Metal roofs have a reputation for being finished once they are installed. They are not. Fasteners back out, sealant dries, panels move and rust starts at the edges. A roof repair in Los Angeles on a metal roof is mostly about those small details, because the panels themselves are often fine.

This page covers corrugated and ribbed panels, standing seam and metal shingle or tile profiles. Where metal meets a wall or vent, see roof flashing repair, and for a chimney joint, chimney flashing repair.

What kind of metal roof is leaking?

The panel type tells us where to look first.

Slope matters. Metal sheds water best on a steeper roof, and low-slope metal depends on its seals far more. Panels on a nearly flat section will leak at laps that would stay dry on a steep one.

What does metal roof repair in Los Angeles include?

A metal roof repair is a set of small, specific fixes, each priced on its own line. The panels are usually sound, so the work targets the details around them.

• Fastener work: loose, backed-out or rusted screws replaced, with new washers or a larger size where holes have worn
• Sealant and laps: old sealant removed and laps, end caps and penetrations resealed
• Seam and clip work: standing seam seams re-locked or sealed, and loose clips refastened
• Panel sections: dented, holed or rusted-through sections cut out and replaced
• Flashing and trim: loose or corroded edge metal, valleys and wall joints repaired or replaced

If the survey finds rust across most of the surface, we say so before you spend money on repairs.

Why do metal roofs leak at fasteners and seams?

Thermal movement is the root cause. Metal swells in the afternoon and shrinks overnight, and on exposed-fastener roofs that cycle slowly enlarges the screw holes. Rubber washers harden in the sun, and Van Nuys averages about 77 days a year at 90°F or hotter by NOAA's normals.

Other causes show up as the roof ages:

• Failed sealant at laps, end caps and penetrations
• Corrosion at cut edges, scratched coatings and fastener heads
• Dissimilar metals touching, which corrode where moisture sits between them
• Foot traffic that dents ribs and crushes seams
• Debris held in valleys and behind skylights and chimneys

Salt air accelerates all of it near the coast. Along the bay in Santa Monica, marine air eats at fasteners and trim, and Marina del Rey, a harbor community, sees salt-laden air attack metal roof components on condos and apartments.

Signs your metal roof needs repair

• Drips or brown stains on the ceiling after a rain, often some distance from the actual leak
• Screw heads that sit proud of the panel, or rubber washers that look cracked or flattened
• Rust blooms or flaking paint along laps, cut edges and fastener lines
• Sealant that has shrunk, cracked or pulled away at end caps and vents
• Panels that rattle or lift in wind

Metal moves at the screws before it fails at the panel, so catching these early keeps a small fix small.

How we repair a metal roof, step by step

1. Trace the water. Inside, we follow stains and marks to the attic. Outside, we look uphill at fasteners, laps, seams and penetrations.
2. Test the fasteners. We check which screws are loose, which washers are cracked and where holes have enlarged.
3. Decide the fix for each detail. Larger screws, new washers, sealant, replacement flashing or a panel section.
4. Show you and price it. Photos and a written price come before the work.
5. Repair and reseal. Fasteners are replaced, laps and seams are cleaned and sealed, and damaged sections are replaced.
6. Check and clean up. We re-inspect the area and sweep drilled metal shavings off the roof, because they rust and stain panels.

Can rust, old panels and standing seam be repaired?

Often, yes. Surface rust at laps and fasteners can be cleaned, treated and sealed. Through-rust means a section has to be replaced. Rust across most of the surface suggests the roof is near the end of its life, and that is when repair stops paying.

Standing seam is a different job. It has few exposed fasteners, so leaks tend to come from seams, clips, transitions and penetrations. One Van Nuys customer describes a conversation about standing seam versus asphalt that laid out the pros and cons clearly, and our comparison of standing seam metal vs asphalt shingles covers the trade-offs for anyone weighing a switch. If you are considering replacement, see standing seam metal roofing.

What affects the cost of metal roof repair?

The count of problem spots, the roof's height and slope and how much rust has set in. Replacing fifty screws costs less than replacing a damaged section of panel, and a run of panel replacement costs less than a roof's worth of recoating. Matching the profile and color of older panels can be the hardest part, since some profiles are no longer made.

Access matters, because ribbed panels can dent under a footstep and some roofs need walking boards. You get a written price once we have inspected the panels, before any work starts.

Metal roof rules: permits, fire rating and insurance

Spot repairs generally raise few permit questions. Check your address with LADBS, your city or the county. A larger replacement scope can fall under re-roof rules, which generally include cool-roof requirements when more than half the roof changes. Class A roof covering is required in the Very High Fire Hazard Severity Zone, and the rating belongs to the whole assembly, so it is worth asking before you change materials.

Storm damage may be covered by your homeowners policy, while corrosion and wear usually are not. We can photograph the damage and write a repair estimate for the file. Dealing with the insurer on the amount is your job or a licensed public adjuster's.

Why Clear Shield for metal roof repair in Los Angeles

We trace before we seal. Reviewers describe leaks traced before coating and a full water test afterward to confirm everything stayed dry, and one customer describes materials, colors and pros and cons explained plainly during the decision.

Inland, we cover Santa Clarita, where hot, dry summers drive the daily expansion that loosens fasteners. Thousand Oaks has hillside streets and leaf-heavy gutters every fall, which keep moisture sitting against seams. For tile instead of metal, see tile roof repair and for shingles, shingle roof repair.