Architectural shingles
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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Repair Across Los Angeles
Roof repair in Los Angeles typically costs between $350 and $1,850 depending on the scope, and most small leaks and shingle replacements can be completed in a single visit. We work across the city every week, from the flat-roof bungalows of South LA to the pitched shingle homes climbing the hills above Silver Lake. Marquis Roof Repair has spent years diagnosing and fixing the specific ways Los Angeles roofs fail, and we’re direct about what’s wrong before we ever touch a shingle. Call (866) 705-2978 for a free estimate, and we’ll send someone who actually knows your neighborhood’s housing stock.
Los Angeles is not a simple roofing market. The city holds a dense grid of pre-war single-family homes, Spanish-revival tile work, mid-century low-slope roofs, and hillside properties where wildfire and seismic codes now shape every repair. A roofer who treats LA like any other sunbelt city will miss the ponding water on a 1920s tar-and-gravel roof or the UV-brittle shingles on a west-facing slope in 90037. We see those conditions weekly, and our Roof Repair approach starts with understanding what your particular roof was built to do, and where it’s quietly failing.
Why Marquis Roof Repair Is Los Angeles’s Preferred Roof Repair Company
We built our reputation in Los Angeles on honest diagnostics, not upselling. When a homeowner in Hollywood or Koreatown calls about a ceiling stain, our first job is finding the actual source of water, which on older LA homes often means checking parapet flashing, valley transitions, or a ponding low-slope section rather than pointing at the nearest shingle. That repair-first approach is the reason Los Angeles homeowners refer us to neighbors: we investigate before we recommend. If a roof needs five shingles, that’s the quote. If it needs decking replacement, we show you photos before we add a dollar.
Our crews know the difference between a 1950s foursquare in 90038 with original decking and a hillside Spanish-revival tile roof in Echo Park where a cracked cap tile is channeling water into the eaves. That local experience changes what we inspect, what we quote, and how we sequence the work. We carry materials from seven manufacturer lines, which means we’re not stretching one brand’s product line to fit a roof it wasn’t designed for. The right material for your roof, installed to the Marquis standard, backed by a real workmanship warranty. From first inspection to final shingle, you’re dealing with one specialist, not a rotating cast of subs.
Ron Thibodeau founded Marquis to operate differently than the volume roofing companies that run crews through Los Angeles neighborhoods on commission. Every estimate we give you reflects the actual condition of your roof, not a quota. When hidden damage appears, it’s documented, explained, and priced in writing before we proceed. That’s the discipline that keeps a five-figure surprise from ever landing on your doorstep mid-job.
Styles & brands we work with






Commercial Roof Repair in Los Angeles
Commercial Roof Repair in Los Angeles generally runs from $750 for a targeted flashing or membrane patch on a small strip-mall or apartment-court roof, up to $12,000 or more when a low-slope commercial roof needs extensive tear-off of failed built-up roofing and new membrane across a larger footprint. We work on the city’s aging commercial stock: 1920s retail strips in Koreatown with original built-up roofs, 1950s apartment courts along Olympic and Pico with ponding tar-and-gravel, and small warehouse conversions where the roof hasn’t been touched since the building changed hands. These roofs fail differently than single-family roofs: the ponding is more widespread, the parapets are longer, and the drains are often clogged or undersized.
Our commercial work always starts with a roof survey. We map the low spots, locate the drains, and identify the failing seams or blisters before we recommend a patch or a larger repair. On built-up tar-and-gravel roofs that have been re-coated repeatedly over the decades, the existing layers often hide saturated substrate. We don’t just coat over it. We core-cut to inspect what’s underneath, because in Los Angeles, a cheap re-coat over a saturated roof is deferred liability, not a repair.
Built-Up Roof Patching and Membrane Repair
Most commercial repairs we perform in Los Angeles are on low-slope built-up or modified-bitumen roofs that have started to pond or split at the seams. We repair these using manufacturer-specified materials from our portfolio, not mismatched cold-applied products that peel in two seasons of LA sun. A proper patch on a commercial roof here has to survive 300-plus days of UV, standing water in the rainy season, and occasional foot traffic from HVAC service and solar contractors.
Parapet Flashing and Drain Repairs on LA Apartment Courts
Pre-war apartment courts in Koreatown and Echo Park often share parapet walls between units, and those transitions are where water gets in. We repair deteriorated counter-flashing, rebuild failed pitch pans, and clear or replace undersized drains so water moves off the roof instead of sitting through the next heat spell. A commercial leak that’s been “fixed” twice and keeps returning is usually a flashing problem, not a membrane problem. We look there first.
Roof Leak Repair in Los Angeles
Roof Leak Repair in Los Angeles typically costs between $350 and $1,200 when the leak source is isolated to flashing, a vent boot, or a few damaged shingles. When a leak has been running long enough to rot decking or top plates, the repair expands, and we quote $1,800 to $5,000 for sections requiring decking replacement and new underlayment. Los Angeles leaks are often confusing because the water can travel far from the actual penetration. A stain near a bedroom ceiling in a 90036 bungalow may originate at a failed valley on the other side of the roofline, running along a rafter before it drops.
Our leak repair process reflects that. We start with a full attic inspection where accessible, water-trace the path, and then work from the top down. We don’t caulk the first gap we find and call it done; we verify the path. In South LA’s 90001 through 90008 ZIPs, we frequently find leaks tied to the local failure mode of ponding flat roofs and failed parapet flashing, not the shingle field. Those homes need a different diagnosis than a 1960s tract house in the Valley on a steep pitch.
Flashing and Valley Leak Repairs
The valleys on older Los Angeles homes were often built without ice and water shield, and decades of expansion and contraction have opened the seams. We repair valley leaks by removing the affected shingles, installing proper underlayment, and replacing the valley flashing or weaving new shingles to drain cleanly. On shared-parapet bungalows, the flashing at the wall transition is the usual suspect, so we inspect those points before quoting any shingle work.
Ponding Water and Low-Slope Leaks
Flat and low-slope roofs on 1920s-1950s Los Angeles homes pond water after years of re-coating have built up uneven layers. That standing water finds pinholes and hairline cracks, and over time it rots the decking below. We repair these by identifying the low areas, removing failed coating, repairing the substrate, and re-sealing with materials matched to the existing system. It’s painstaking work, but on these LA roofs, it’s the only repair that lasts.
Trusted Brands We Service in Los Angeles
Marquis carries and installs material from seven major roofing manufacturers, including Tamko, IKO, and Boral, so the recommendation we make for your Los Angeles roof is driven by your home’s pitch, exposure, and budget, not by whatever product happens to be in our warehouse that week. If your 90038 bungalow needs architectural shingles that can hold up to intense southwest sun, we specify accordingly. If your hillside home needs a specific fire-rated assembly, we match the product line to the code requirement. Seven manufacturer lines, one point of contact. Los Angeles customers don’t wait on special-order material for common repairs; we stock local inventory for the brands and profiles we see most across the city’s housing stock.
See the difference
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AfterCommon Roof Repair Problems We See in Los Angeles Homes
- Ponding tar-and-gravel roofs on pre-war bungalows. Homes from the 1920s through 1940s in South LA and Koreatown often carry flat built-up roofs that have been re-coated so many times the surfaces are uneven and hold water after winter rains. The ponding leads to hidden decking rot that doesn’t show until a leak appears inside.
- UV-brittle asphalt shingles on south- and west-facing slopes. The intense Los Angeles sun, especially on roofs facing the afternoon heat, breaks down asphalt shingle adhesive and granules years before the rest of the roof. We see roofs in 90039 and 90036 with half the shingle life remaining on the north slope and completely spent shingles on the west slope.
- Shared-parapet flashing failures on tight lots. Los Angeles’s dense pre-war grid built bungalows and apartment courts with shared walls and minimal setbacks. Those parapet transitions fail, water gets behind the stucco or siding, and leaks show up on interior walls far from any obvious roof penetration.
- Seismic movement and structural stress at transitions. Los Angeles roofs shift over time from decades of minor seismic activity. Roof-to-wall connections, chimney flashing, and valley joints can loosen even when the roof itself looks fine. We check those transition points during every inspection because on these older homes, they’re where LA leaks actually begin.
Pricing for Roof Repair in Los Angeles, CA
A standard shingle replacement in Los Angeles runs $350 to $900 for a small isolated section. Flashing repairs, including parapet and valley work, typically fall between $450 and $1,400. Ponding flat-roof repairs on pre-war homes run $800 to $2,500 depending on how much substrate replacement is needed. Full leak repairs with decking replacement on low-slope sections of 1920s bungalows move into the $2,200 to $5,000 range. What shapes the number most in Los Angeles: the pitch of your roof, whether we’re tearing off layers, and whether the decking below has been compromised by years of slow water intrusion. We give you a written line-item estimate before work starts, and if we find hidden damage, it’s priced and approved by you before anyone picks up a tool. Call (866) 705-2978 for a free estimate on any roof repair in Los Angeles.
We Also Serve Cities Near Los Angeles
Marquis Roof Repair works throughout central Los Angeles and the surrounding neighborhoods. Our Roof Repair in Los Angeles coverage includes Koreatown, Echo Park, Silver Lake, and Hollywood, as well as the surrounding ZIP codes across the city. Wherever your roof sits in this area, we’ll come inspect it and tell you straight what it needs. If you’re in one of these neighborhoods and wondering whether that ceiling stain is serious, call us before it spreads.
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
Ponding water on flat tar-and-gravel roofs in Los Angeles happens because decades of re-coating build up uneven layers that block drainage. The original roofs on pre-war bungalows in South LA and Koreatown were designed with a slight slope toward drains or scuppers, but each time a contractor re-coated the surface without addressing those low spots, the problem got worse. Water sits, finds pinholes, and rots the decking underneath. The fix is not another coat; it requires correcting the slope, repairing the substrate, and sealing the system properly. If your flat roof ponds water after rain, call (866) 705-2978 and we’ll assess whether it’s a simple repair or a decking problem.
Los Angeles’ long dry season and intense UV exposure break down asphalt shingle adhesive and granules far faster than in coastal or cooler climates. South- and west-facing slopes take the worst of it, and shingles there can lose their protective granule layer years before the rest of the roof shows wear. Once the asphalt is exposed, the shingles become brittle, crack, and allow water through. We see this most often on the older bungalows across 90037 and 90038, where a roof’s sunny side fails while the shaded side still looks new. The repair is targeted shingle replacement on the damaged slopes, matched to the existing product where possible. Call (866) 705-2978 for a free slope-by-slope inspection.
When we repair a roof on a pre-war bungalow in 90003, we expect to find hidden conditions: rotted decking under ponding areas, missing underlayment in valleys, and old flashing that’s been patched with caulk too many times. On a 1920s bungalow in that ZIP, our crew tore off a ponding tar-and-gravel roof and found rotted decking and no ice and water shield in the valleys. We installed new underlayment, drip edge, and GAF architectural shingles, then added a ridge vent to improve ventilation. The repair took a few days because we replaced what was actually compromised, not just what was visible. That’s the standard we work to on every pre-war home in Los Angeles. Call (866) 705-2978 to schedule your inspection.
Most small roof repairs in Los Angeles, such as replacing a few shingles or resealing a small flat section, do not require a permit. Larger repairs, structural decking replacement, or work that changes the roof assembly can trigger permit requirements under the Los Angeles Department of Building and Safety. When we open up an older LA roof, we sometimes find conditions that require updating to current code, such as adding proper underlayment or improving roof-to-wall connections. We handle the permit process for you when it’s needed, and we write allowances into the contract so potential code upgrades are priced and approved before work begins. Call (866) 705-2978 and we’ll tell you where your repair stands.
When hidden damage appears during a roof repair in Los Angeles, we stop work, document what we found with photos, explain the exact repair needed, and get your written approval on the additional cost before we proceed. That means no surprise charges and no pressure to approve work you haven’t seen. In older LA homes, hidden damage is common: rotted decking under ponding areas, termite damage at the roof edge, or failing flashing hidden behind stucco. We write realistic allowances into our initial estimate for these conditions on pre-war homes, so the conversation is expected rather than alarming. Call (866) 705-2978 for a free estimate that accounts for what your Los Angeles roof actually holds.
Marquis Roof Repair serves Los Angeles with inspection, repair, and replacement across the full roof lifecycle. When your roof starts showing its age, don’t wait for the next rain to find the hole. Call (866) 705-2978 or reach out online to schedule your free estimate. We’ll walk the roof with you, show you what’s there, and tell you straight what it needs to protect your home for years.
Written by Ron Thibodeau, Owner at Marquis Roof Repair, serving Los Angeles and the surrounding neighborhoods.