Owens Corning
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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Owens Corning Roofing in Claremont, CA | Baycrest Roofing
We provide independent Owens Corning roofing service across Claremont, from the Village to the 91711 tract-home neighborhoods. As an independent contractor – not an Owens Corning dealer or authorized installer – our recommendations come from what your roof actually needs, not a manufacturer sales channel. Baycrest Roofing works with seven shingle brands including Owens Corning, and we match the material to your roof, not your roof to our inventory. Call (866) 412-5697 for a free estimate.
Why Claremont Residents Choose Us for Owens Corning Service
We’ve spent years pulling apart Owens Corning systems across Claremont’s mix of postwar tract shingle roofs and century-old tile-and-shake stock. That dual exposure matters. A crew that only does new-construction shingle work in Rancho Cucamonga won’t know what a 1960s Owens Corning Supreme roof in north Claremont looks like after forty summers of San Gabriel foothill heat. We do. Nolan Cafferty, our owner, grew up in the Redhawk neighborhood of Temecula and has spent most of his adult life working roofs across the Inland Valley corridor. He learned the failure patterns Southern California creates – UV exposure, Santa Ana winds, those rare frost cycles in the mountain shadow – by being on the roof, not just reading about it.
We carry seven major shingle lines – GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral – so when an Owens Corning repair is the right call, we make it. When a different material honestly fits the house better, we’ll tell you that too. That’s the difference between a roofer who sells one brand and a roofer who services your roof. For Claremont homeowners, that matters because this city’s housing stock is older and more varied than almost anywhere else in the Inland Empire. Learn more about our Owens Corning sales & service capabilities, or see how we work throughout the Claremont service area.
Styles & brands we work with






Common Owens Corning Roofing Problems We Solve in Claremont
- Curled and cracked three-tab shingles on 1950s-1970s tract homes. Oakridge and Supreme shingles on Claremont’s north- and east-side tracts absorb decades of inland-valley UV, dry out at the tabs, then crack through the mat when Santa Ana winds flex them. We see this constantly on the east Claremont streets where the original roofs never got upgraded.
- Lifted Duration architectural shingles after hot-cold swings. Duration shingles seal down hard, but the adhesive strips and fastener heads commonly back out or lift after the mountain-shadow temperature cycles Claremont gets. Wind-driven rain tracks under the courses and shows up as ceiling stains inside the house.
- Split vent boots and pipe collars. The rubber gaskets on Owens Corning shingle roof vent boots and pipe collars dry-rot years before the field shingle fails. This is the single most common leak source we find on repair calls in Claremont – it’s rarely the shingle itself.
- Underlayment fatigue on shallow-pitch transitions. Where the original felt or synthetic underlayment predates the last re-roof, the first frost-plus-hail cycle after a hot summer exposes granule loss and pinhole failures. Claremont’s rare frost cycles make this failure mode faster here than in lower, warmer cities.
- Granule loss showing through on aging shingle additions. Homes in the Village and college-adjacent blocks often have a rear slope or addition done in Owens Corning shingles decades ago. Those patches wear at a different rate than the original tile and need attention before the underlayment beneath them fails.
Owens Corning Service in Claremont: What Local Conditions Mean for Your Equipment
Here’s the thing only someone working in Claremont regularly would tell you: the city’s design review in the Village and college-adjacent blocks routinely stalls re-roofs waiting on period-correct clay barrel tile and reclaimed material. A homeowner with a failing underlayment beneath intact 1920s clay tile can wait weeks, sometimes months, for the matching tile to arrive. During that wait, the underlayment keeps failing, water keeps getting under the tile, and the interior damage compounds. An Owens Corning shingle repair on the rear slope or addition is often the practical answer when the visible tile above is intact but the underlayment underneath is failing. You preserve the historic look, stop the leak, and buy time to source the right tile when the full re-roof becomes possible. That’s a Claremont-specific reality – in Pomona or Upland, you’d just re-shingle and be done.
One job that stuck with us: a 1920s Spanish Colonial Revival near the Claremont Colleges with original clay barrel tile intact and underlayment beneath it long dead. We stripped the tile, replaced the failed underlayment, and reinstalled the salvaged field – no new shingle anywhere on the visible roof. The homeowner also had us patch the rear slope where an older Owens Corning shingle addition had lost granules, and we tied the two systems together with new flashing at the transition. That’s the kind of work this city asks for, and it’s the kind we’re built to do.
Owens Corning Models & Products We Service in Claremont
We work on the full Owens Corning residential line: Oakridge, Duration, Supreme, and the Berkshire Collection. For shingle replacements, we build jobs from genuine Owens Corning shingles and matching accessory pieces where color and profile must line up – a patch job that doesn’t match looks worse than the leak. For underlayment and flashing, we use quality aftermarket options where the OEM piece adds cost without performance. The roof either sheds water or it doesn’t – everything else is just conversation. That’s the standard we build to, in the Village and in the tract homes east of Towne Avenue.
We also handle the sub-services these roofs commonly need in Claremont: tile roof repair where clay barrel tile has slipped or cracked, tile underlayment replacement beneath intact period tile, and shingle replacement on the postwar tract homes that make up most of the 91711 housing stock.
See the difference
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AfterOwens Corning Service Pricing in Claremont
Owens Corning shingle repair in Claremont typically runs $275-$475 for isolated vent boot, pipe collar, or flashing fixes. Partial shingle replacement runs $400-$900 depending on slope accessibility and the size of the affected area. Full underlayment replacement beneath existing clay tile in the Village runs $8-$15 per square foot, with material availability and design-review constraints affecting the timeline. Full Owens Corning re-roofs start around $6,500 for smaller postwar tract homes and climb from there based on square footage, slope, and the shingle line you choose – Duration runs higher than Supreme, which runs higher than Oakridge.
What drives cost: roof steepness and access, the age of the existing underlayment, whether the job requires design review, and whether any tile or flashing needs to be sourced period-correct. Every estimate starts with an inspection. We don’t quote over the phone without seeing the roof. Call (866) 412-5697 to schedule your free estimate.
Serving Claremont, CA — Our Local Coverage Area
We’re based in the Claremont area and know this community well, and we also serve nearby Owens Corning in Montclair. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Owens Corning Roofing in Claremont
Can you re-roof my Claremont Colleges-area home in Owens Corning shingles when the rest of the roof is original clay barrel tile?
We can, and we’ve done it – but we’d first walk you through whether a shingle patch on the failing section with proper flashing transitions is the better call while the original tile stays intact. In many Village homes, the answer is repairing the underlayment beneath the tile and only re-shingling the addition or rear slope, preserving the historic profile. Call (866) 412-5697 and we’ll inspect before we recommend anything.
Why do my Owens Corning shingles on the north side of a tract home in east Claremont wear differently from the south side?
The south-facing slopes in Claremont take direct San Gabriel foothill UV all day, which accelerates granule loss and tab curling on Oakridge and Supreme shingles. North slopes stay cooler and wetter longer after rain, so you get more algae and slower drying. The two slopes fail differently, and a proper inspection reads them separately. That’s what Nolan Cafferty’s crew does on every call.
Will Owens Corning warranty cover a leak from my vent boot or flashing in Claremont?
Generally no. Owens Corning’s shingle warranty covers manufacturing defects in the shingle itself, not the vent boots, pipe collars, or flashing – those are accessory components that fail from weathering long before the shingle does. As an independent contractor, we source the replacement pieces and repair the leak directly. Call (866) 412-5697 for an exact quote on the repair.
What should I expect when replacing underlayment beneath existing clay tile in the Village?
Expect a slower, more careful job than a shingle re-roof. The tile comes off piece by piece, gets sorted for salvageable vs. cracked, the failed underlayment gets stripped, new underlayment goes down, and the tile gets reinstalled. On Claremont’s historic homes, we also factor in design review timelines if the visible roof is changing. Call (866) 412-5697 and we’ll give you a written scope and timeline.
Do you work on Owens Corning metal shingle or standing seam roofs as well as shingles and tile?
Our Owens Corning work is focused on their shingle lines – Oakridge, Duration, Supreme, and Berkshire – and the tile and underlayment systems those roofs integrate with. For standing seam or metal shingle roofs, we’ll inspect and refer honestly rather than take a job outside our material expertise. That’s how we keep the work clean.
Service Areas Near Claremont
Baycrest Roofing serves Claremont and the surrounding Inland Valley communities. If you’re in Los Serranos, we’re ten minutes away. We also work throughout the foothill corridor and nearby cities including Pomona, Upland, La Verne, and San Dimas. For Owens Corning work further west, see our Owens Corning service in Stanton or Owens Corning service in Sky Valley.
Book Your Owens Corning Service in Claremont Today
If your Owens Corning shingles are curling, leaking, or showing their age, call Baycrest Roofing at (866) 412-5697. We’ll inspect first, recommend second, and give you a written line-item estimate. Claremont roofs need someone who knows both the material and the city – that’s us, whether you’re here or across the county in Ontario.
Written by Nolan Cafferty, Owner at Baycrest Roofing, serving Claremont and the Inland Valley.