Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterFast, Reliable Roof Repair Across Los Angeles
Roof repair in Los Angeles runs $350 to $1,850 for most residential jobs: a shingle replacement around $350 to $750, leak repair between $400 and $1,200, flashing repair at $550 to $1,400, and flat roof patches landing near $850 to $2,200 depending on the membrane. That range shifts fast when you’re up in the Hollywood Hills or out near the coast in Pacific Palisades, because those neighborhoods carry fire-zone and salt-air requirements that inland streets in Huntington Park never see. We’re Mercer Roofing, part of the Threshold Group family since 2000, and our crews serve Los Angeles neighborhoods every day with written prices before any work starts. You can reach a live person at (743) 200-8347 right now to talk through what’s happening on your roof.
Key Takeaways
- Most Los Angeles roof repairs cost between $350 and $2,200, with hillside fire-zone work and coastal salt-air repairs running higher.
- Every technician who knocks on your Los Angeles door is background-checked, identity-verified, and photo-badged under the Threshold Verified standard. We send their name and photo before they arrive.
- Written price before work starts. Written 365-Day Done Right Promise on every repair. No exceptions.
- LADBS fire-zone rules and salt-air corrosion decide what your specific roof actually needs, not a generic quote over the phone.
Why Mercer Roofing Is Los Angeles’s Preferred Roof Repair Company
Los Angeles homeowners keep telling us the same thing after other roofing companies: nobody ever said who was coming. That’s a legitimate worry when you’re home alone with kids, or an older homeowner who has every right to see a badge before opening the door. We built Mercer Roofing around solving that exact problem. Every technician is uniformed, background-checked, and identity-verified under the Threshold Verified standard. Before they arrive at your Los Angeles address, you get their name and photo in a text or email. At the door, they present a photo ID badge. You know exactly who is on your property before a ladder touches the gutter line.
Our Los Angeles customers also tell us they like the written guarantee. Not “we’ll take care of you” – a written 365-Day Done Right Promise on every repair. If the repair fails within a year, we make it right at no charge. That includes a free second visit. No fine print about “normal wear and tear.” If it’s not done right, we fix it. Period.
Calls to (743) 200-8347 are answered by a live human being, 24/7. Not a voicemail tree. Not a call-back form that sits in an inbox for a day. A real person on the line who can schedule your free estimate and answer questions about fire-zone assemblies, coastal fasteners, or whether your 1960s flat roof needs TPO or modified bitumen. Dispatch and scheduling are coordinated from Mercer Roofing’s Los Angeles office, with crews serving Los Angeles neighborhoods locally.
Metal Roof Repair in Los Angeles
Metal roof repair in Los Angeles is not a one-size-fits-all job. We work on standing-seam metal roofs in Silver Lake, corrugated metal on commercial buildings along South Broadway, and occasionally a 1950s copper or zinc accent on a mid-century home in Los Feliz. What the repair involves depends on whether you’re inland or coastal. Inland metal repair typically means re-securing loose panels, replacing worn neoprene washers on exposed screws, patching a seam, or re-flashing a chimney penetration. Coastal metal repair in Pacific Palisades or Playa del Rey adds a different layer entirely: salt-air corrosion has usually eaten the original galvanized fasteners, drip edge, and transition flashing. That repair starts with removing rust-bleeding hardware, not patching the seam.
Typical metal roof repair costs in Los Angeles run $600 to $1,800 for most residential panels and seams. Coastal-spec metal repair, where we replace corroded galvanized hardware with hot-dip galvanized or stainless fasteners, runs $900 to $2,400 depending on the roof size and how many fasteners need to go. It costs more up front because the hardware itself costs more. But the inland-spec version fails again in three to six years when salt air eats the new galvanized screws. The coastal-spec version is what actually stops the leak permanently.
Standing Seam and Panel Repair
Standing-seam repairs in Los Angeles usually come down to failed seam closures, backed-out fasteners, or a penetration boot that cracked after years of UV exposure. We inspect the seam, pull compromised fasteners, and reseat or replace them with the correct hardware for your exposure. In coastal zones, that means stainless or hot-dip galvanized, every time.
Fastener and Flashing Corrosion
This is the salt-air failure we see constantly in Pacific Palisades and Playa del Rey. The panel looks intact, but rust bleed around the screws tells you the hardware is degrading beneath. We strip the corroded hardware, clean the panel surface, install marine-grade stainless or hot-dip galvanized fasteners, and re-flash the transition. The repair is not a patch; it’s a hardware replacement that survives the next storm season.
Commercial Roof Repair in Los Angeles
Commercial roof repair in Los Angeles covers everything from a flat built-up roof on a Koreatown strip mall to a TPO membrane on a South Gate warehouse to a metal roof over a commercial kitchen in Bell. The job starts with locating the actual leak, which on a 10,000-square-foot flat roof is rarely where the water shows up inside. Water travels under the membrane along the decking, so the visible stain on the ceiling might be thirty feet from the hole at the parapet or the failed HVAC curb flashing. We trace it, open only what needs opening, and repair the membrane or flashing with materials matched to the system that’s already on the roof.
Commercial roof repair in Los Angeles typically runs $850 to $3,500 for a targeted patch, flashing repair, or drain replacement. A larger membrane replacement on a medium commercial flat roof runs $8,000 to $18,000, but we only recommend that when the existing membrane is at end-of-life, not as an upsell. Every commercial repair carries the same 365-Day Done Right Promise in writing, and you receive a written price before any work is authorized. No change orders appear on the invoice that you did not approve first.
Flat Roof Membrane Repairs
TPO, modified bitumen, and built-up roofs each fail differently. TPO splits at seams under thermal cycling, modified bitumen develops blisters and cracks at flashings, and built-up roofs lose gravel and expose the felt to UV. In Los Angeles, the slope matters: Silver Lake and Los Feliz mid-century flats often have near-zero slope, so even a small penetration leaks fast. We repair the membrane correctly for the system, not generically.
Parapet, Drain, and Curb Flashing
Most commercial roof leaks in Los Angeles start at a transition: the parapet wall cap, the scupper or drain opening, or the curb where an HVAC unit sits. We re-flash those transitions with materials rated for the membrane, seal every penetration, and in fire-zone areas, verify that the repair meets LADBS Class A assembly requirements so your building stays compliant when the next Santa Ana wind event pushes embers across the roof.
Trusted Brands We Service in Los Angeles
We repair and install roofs using manufacturer-recognized shingle and membrane brands including GAF, Atlas, and Boral, and we know which of those materials holds up in Los Angeles conditions. When your roof needs a shingle match, a new TPO membrane, or a full re-roof that meets Class A fire assembly requirements, we specify the product that actually fits your exposure, not the one sitting in a warehouse. We stock common Los Angeles parts locally, so a standard shingle replacement or vent boot repair doesn’t wait on a parts truck from San Bernardino. If you’re in Huntington Park with a blown-off ridge shingle or in Hollywood Hills with a cracked valley, we can quote it accurately from local stock and schedule your repair this week.
Common Roof Repair Problems We See in Los Angeles Homes
- Salt-air corrosion on coastal roofs. In Pacific Palisades and Playa del Rey, we regularly see standard galvanized fasteners reduced to rust stains within five to seven years. The flashing looks intact; the hardware underneath is gone. We specify hot-dip galvanized or stainless steel on these homes.
- VHFHSZ assembly failures in hillside neighborhoods. Homes in Hollywood Hills, Bel Air, and Laurel Canyon run under CAL FIRE’s Very High Fire Hazard Severity Zone designation. A small shingle repair that does not meet the LADBS Class A assembly review can leave ridge vents and soffit gaps vulnerable to ember intrusion during a Santa Ana wind event.
- UV-degraded shingles on inland and valley roofs. LA’s year-round sun breaks down asphalt shingles faster than the manufacturer’s rating suggests. Homes in the east Valley and areas like Maywood or Bell often show thermal cracking around valleys and penetrations after eight to ten years, long before the shingle’s labeled lifespan ends.
- Flat roof leaks on mid-century homes. Silver Lake and Los Feliz are full of 1950s and 1960s homes with flat or near-flat roofs. These were built for built-up roofing of the era, and years of deferral mean a sudden atmospheric river can dump water through seams that sat dry for months. The leak shows up in the drywall; the problem is the membrane.
Pricing for Roof Repair in Los Angeles, CA
A typical shingle replacement in Los Angeles runs $350 to $750, depending on the number of shingles and the pitch. Leak repair runs $400 to $1,200 once we trace the entry point. Flashing repair typically lands between $550 and $1,400, flat roof patches from $850 to $2,200, and vent boot replacements around $350 to $600. Coastal-spec metal repair with stainless or hot-dip hardware runs $900 to $2,400, and VHFHSZ-compliant repair in the hills adds assembly review scope that can push a simple shingle job into the $1,200 to $2,800 range on the low end, because LADBS ties the permit to the entire Class A assembly, not just the shingle you called about. We give you a written price before anything starts, so you’ll never discover a changed number after the crew arrives. Call (743) 200-8347 to schedule your free estimate.
We Also Serve Cities Near Los Angeles
Mercer Roofing handles Roof Repair across the Los Angeles metro, including the neighborhoods and cities where our crews are working every week. If your home is in Huntington Park, South Gate, Bell, or Maywood, you’re within our normal service area for Roof Repair in Los Angeles and nearby. Same Threshold Verified standards, same written guarantee, same live person on the phone when you call (743) 200-8347.
Serving Los Angeles, CA - Our Local Coverage Area
We’re based in the Los Angeles area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Roof Repair in Los Angeles
You likely need a hardware replacement, not a full roof replacement. The rust stains tell you the original galvanized fasteners are corroding from salt-laden onshore air that Pacific Palisades gets constantly. A proper repair means stripping the corroded fasteners, checking the panel for corrosion at the holes, replacing hardware with hot-dip galvanized or stainless steel, and resealing. That typically runs $900 to $2,400 in Los Angeles, and it’s cheaper and longer-lasting than a full panel replacement you may not need. We’ll give you a written quote before work starts. Call (743) 200-8347 for a free estimate.
Because your neighbor’s street is not in the same LADBS fire-zone review. In VHFHSZ neighborhoods like Hollywood Hills, Laurel Canyon, and Bel Air, Los Angeles Department of Building and Safety ties any permitted roof work to a Class A assembly review. That means we can’t just swap three damaged shingles and walk away; the permit triggers inspection of the full underlayment, ridge vents, and penetration detailing for ember resistance. The repair scope expands to make your roof fire-safe end-to-end, which costs more. It’s the correct work for your property and your insurance, not an upsell. We’ll show you the line items before we touch the roof.
That depends on what’s already on the roof and what the deck shows once we open it. Silver Lake mid-century homes often have built-up roofs or old modified bitumen from the 1970s and 1980s. If the existing membrane is in decent shape and the failure is at a flashing or penetration, we patch and re-flash with a compatible material, typically $850 to $2,200. If the membrane is at end-of-life, we recommend a full replacement with TPO or modified bitumen, and we’ll show you written pricing for both options. The choice is yours after you see the numbers. Call (743) 200-8347 for an inspection.
Yes, in most cases. The original clay tile on 1920s and 1930s Los Feliz Spanish Colonials is often still structurally sound; the failure is the underlayment beneath it or the flashing at the valley. We lift the tiles in the affected area, repair or replace the underlayment, re-flash the valley, and reset the original tiles. Tile themselves rarely need replacement unless cracked from foot traffic or fallen branches. A valley repair on a tile roof in Los Angeles typically runs $800 to $1,800. We’ll keep your original tile if it’s salvageable, and we’ll tell you before we remove anything.
Ask what fasteners they used and whether they verified the underlayment and penetration detailing met LADBS Class A assembly requirements. A metal roof in Los Angeles that leaks after a Santa Ana event usually failed at the seam or the penetration because the repair patched the visible split but left the original galvanized hardware or the old underlayment in place. Embers and wind-driven rain find those gaps. Mercer Roofing writes the hardware specification and the assembly scope into every quote, and we include a 365-Day Done Right Promise in writing. If a repair we did fails within a year, we return and fix it at no charge. Call (743) 200-8347 and we’ll talk through exactly what your roof needs.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Los Angeles since founding in 2000 as part of the Threshold Group family.