Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
After
Before
AfterWhy Los Angeles Homeowners Choose Owens Corning Roofing
We provide Owens Corning repair in Los Angeles, from pre-war bungalows in Silver Lake to hillside homes in the Santa Monica Mountains. Our crews work with Owens Corning shingle systems every week, so we know exactly how Duration, Oakridge, and TruDefinition lines perform under LA sun and Santa Ana winds. We’re not an Owens Corning authorized contractor, and we’ll say that plainly – we’re an independent Los Angeles roofing company that installs and services their products because they hold up well in this climate when installed correctly. If you need Owens Corning work done right, call (361) 320-9467 for a free estimate.
Why Trust Brennan Roofing for Your Owens Corning Roofing?
Travis Oakley grew up in the San Fernando Valley and spent enough summers on rooftops as a teenager to know this was going to be his trade. He trained in the building construction technology program at Los Angeles Trade-Technical College before spending the better part of two decades doing production and repair work across Los Angeles County. That means when we walk an Owens Corning roof in Los Angeles, we’re not reading a spec sheet – we’re looking at how the shingles actually sealed, where the flashing was bent wrong, and whether the underlayment was lapped correctly at the eaves. We know the difference between a manufacturer defect and an installation error, and we’ll tell you which one you’re dealing with.
Our technicians work with Owens Corning products constantly. We stock genuine Owens Corning shingles for repairs, and we match existing colors and profiles rather than slapping on whatever’s on the truck. The Garrison Standard applies to every Owens Corning job we take: written price before any work starts, background-checked uniformed technicians who show up inside the promised window, and a 365-Day Done Right Promise in writing. If an Owens Corning repair we make fails within a year, we come back free. That’s not a sales line. That’s the guarantee Travis put his name on.
Common Owens Corning Roofing Problems We Fix in Los Angeles
Los Angeles roofing has its own failure patterns, and Owens Corning products are no exception. Here’s what we see most often:
- Premature granule loss and surface blistering on south-facing slopes. Duration and Oakridge shingles take brutal UV exposure on slopes that face the sun all day, especially in the Valley and foothill neighborhoods. Granules protect the asphalt from UV breakdown. Once they start washing into gutters, the shingle’s clock is ticking. Blistering shows up as small pockmarks where the asphalt matrix overheated.
- Wind-driven tab blow-off and creasing during Santa Ana events. Santa Anas hit Los Angeles with 40-60 mph gusts that lift shingle tabs before the sealant has fully cured, or on older roofs where the sealant baked out years ago. We see creased tabs on windward slopes in the San Gabriel foothills every fall. Duration’s SureNail strip helps, but proper nailing pattern matters more than any feature.
- Underlayment decomposition and nail pops on 20+ year old Oakridge roofs. Older Oakridge three-tabs in Los Angeles often outlive their underlayment. The felt breaks down, nails back out through thermal cycling, and the first big winter rain finds every weak point at once. By the time a homeowner sees a ceiling stain, the underlayment under the field shingles is already failing.
- Flashing rust, corrosion, and lifting at walls, valleys, and around vent pipes. Los Angeles winter rains expose flashing defects fast. We regularly find rusted step flashing on Duration installations where the original crew used thin galvanized metal instead of a heavier gauge, or where valley metal was nailed too close to the center and lifted under thermal movement.
- Stucco damage at fascia and parapet transitions on re-roofs. Nearly every Los Angeles home is stucco over wood frame. When shingles get replaced, the stucco at the roof line often needs repair where old flashing is pulled. We handle that in-house so you’re not chasing a separate stucco contractor after the roof crew leaves.
A roof that’s squared away doesn’t need a sales pitch. What it needs is someone who knows where Owens Corning roofs actually fail in this city and fixes it before the next rain hits.
Owens Corning Parts & Our Repair-vs-Replace Approach
We use genuine Owens Corning shingles for replacements and repairs whenever available. That matters for color match and for keeping any remaining manufacturer coverage intact. We also stock high-quality aftermarket underlayments, flashing materials, and fasteners that meet or exceed current code – in many cases, those accessories outperform what was originally installed, especially on older Oakridge roofs where the original felt underlayment was the weak link.
Our repair-vs-replace conversation is honest. If an Owens Corning roof has localized damage – a few blown tabs, one failed vent boot, a single valley leak – we fix it and you don’t pay for a roof you don’t need. If the roof is past its service life, losing granules across entire slopes, or showing widespread flashing failure, we’ll tell you that too, with numbers on paper for both options. Call (361) 320-9467 and we’ll give you a straight read on your roof.
Our Owens Corning Service Process – Step by Step
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Diagnosis. We walk the entire roof, not just the spot where you saw a stain. On Owens Corning roofs, we check sealant strip integrity, granule embedment on sun-facing slopes, flashing condition at every penetration, and underlayment condition where accessible at eaves and rakes. Travis still pulls his own inspections – his regular table at Paty’s in Toluca Lake is where more than a few honest repair-vs-replace conversations have started.
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Repair or install. If we’re repairing, we source matching Owens Corning shingles and use OEM-compatible accessories where they matter: synthetic underlayment, ice-and-water shield at eaves, and heavier-gauge flashing at all transitions. If we’re replacing, the written price you approved before work started doesn’t move.
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Test. After any leak repair, we water-test the repair zone. After any install, we check sealant strip activation, nailing pattern, and flashing laps. We don’t leave until we’ve walked the roof twice.
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Warranty. Every Owens Corning repair and installation we do carries the 365-Day Done Right Promise in writing. If it fails within one full year, we come back at no charge. That’s the guarantee, and it’s on paper before we start.
Last spring in Sherman Oaks, we removed a 22-year-old Owens Corning Oakridge roof that had severe south-slope granule loss and active leaks around two roof penetrations. After replacing the rusted vent boots and valley flashing, we installed Owens Corning Duration shingles with a synthetic underlayment and new ice-and-water shield at the eaves. The homeowner said the roof looks better than new. That’s the standard we work to on every Owens Corning service in Glendale and across Los Angeles.
Owens Corning Products We Service & Install in Los Angeles
Our Los Angeles crews work across the Owens Corning residential line: Oakridge, Duration, Duration Designer, and TruDefinition color platform shingles. We service older three-tab Oakridge roofs from the 1990s and 2000s, current Duration architectural shingles, and Designer profiles on higher-end Spanish Revival and hillside homes. We stock common Duration colors locally for faster repair turnaround, and we can order any current Owens Corning color and profile for full replacements. We also install Owens Corning ridge cap, starter strip, and the underlayment systems specified for their shingles.
We Also Service These Brands
Brennan Roofing installs and services other leading manufacturer lines including GAF and CertainTeed, along with IKO, Atlas, Tamko, and Boral. We’re not married to one brand. If Owens Corning is the right product for your Los Angeles roof, we’ll say so. If another line fits your budget or home better, we’ll tell you that too, with prices on paper before you decide.
FAQs – Owens Corning Roofing Service in Los Angeles
No. We’re an independent Los Angeles roofing company that installs and services Owens Corning products. We’re not an Owens Corning authorized contractor, and we don’t claim to be. What we do claim is hands-on experience with their shingle lines in this climate, and we back our work with our own written guarantee.
We use genuine Owens Corning shingles for replacements and repairs whenever available. For accessories like underlayment, flashing, and fasteners, we use high-quality materials that meet or exceed building code – in many cases, those aftermarket components are stronger than what was originally installed. If you have an active Owens Corning manufacturer warranty, we’ll factor that into the materials we specify. Call (361) 320-9467 if you want to talk through your specific roof.
Most leak repairs and shingle replacements on Owens Corning service in Long Beach and Los Angeles roofs are done in one day. Full roof replacements typically run three to five days, depending on the roof’s complexity – hillside homes with cut-up roofs and limited street access take longer because staging and access are the real job. We’ll give you a written timeline with your written price before any work starts.
We service and install Oakridge, Duration, Duration Designer, and TruDefinition shingle lines. That includes older three-tab Oakridge roofs from the 1990s and 2000s, current Duration architectural shingles, and Designer profiles. If you’re not sure which line you have, we can tell you during the inspection.
That depends on what’s still covered and what work is needed. Spot repairs using matching Owens Corning shingles generally don’t void manufacturer coverage. A full replacement with non-Owens Corning components could affect remaining warranty terms. We’ll review your situation honestly before recommending anything – the homeowner makes the final call with all the facts on the table.
In Los Angeles and Anaheim Owens Corning service areas, Duration shingle repair work typically runs $350 to $900 for localized fixes like tab replacement or vent boot replacement. Full Owens Corning Duration replacement on a standard 1,500-2,000 square foot Los Angeles roof generally falls between $12,000 and $22,000, depending on tear-off requirements, decking condition, access, and stucco work at transitions. Hillside homes with steep cut-up roofs run higher. Call (361) 320-9467 for an exact quote – estimates are free, and the price goes on paper before any work starts.
Book Your Owens Corning Service in Los Angeles, CA
One call gets you a straight answer about your Owens Corning roof. We’ll schedule an inspection, walk the roof with you, and put the price in writing before any work starts. No surprises, no door-knocking upsell. Call (361) 320-9467 to schedule your free estimate.
Written by Travis Oakley, Owner at Brennan Roofing, serving Los Angeles since 2000.