Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterOwens Corning Roofing in Ontario, CA | Tilehurst Roofing
We provide independent Rancho Cucamonga Owens Corning service across Ontario, from the historic bungalows off Euclid Avenue to the 1990s tile-topped tracts that run north toward the 10. The one thing that makes our Owens Corning work different here is that we build every job around what Santa Ana winds and 110-degree summers actually do to roofing materials in the Pomona Valley wind corridor. We’re Tilehurst Roofing, part of the Kingswell family of companies, and we’ve been resetting tile, replacing failed underlayment, and installing Owens Corning shingle systems across the Inland Empire long enough to know which details fail first. Call (945) 303-9821 for a free estimate, and you’ll get a written price before any work starts.
Why Ontario Residents Choose Us for Owens Corning Service
Owens Corning makes some of the most specified architectural shingles and underlayments in residential roofing, and Roofing Company - Ontario homeowners have a lot of those products sitting on their houses already. Where we come in is when those materials start showing the effects of 25 years of Inland Empire heat and wind. We know the Duration Series inside and out, we’ve pulled more brittle WeatherGuard underlayment off Ontario tile roofs than we can count, and we don’t have to guess at a diagnosis.
Greg Holloway, our owner, learned roofing at Los Angeles Trade-Technical College from instructors who worked roofs for a living, and he’s been on Inland Empire tile and shingle jobs for nearly two decades. He’d rather give you a straight answer about whether your underlayment can be patched or needs full replacement than sell you something you don’t need. That’s how we work, period. Every job gets a written price before we start, and every repair carries a written guarantee. We’re part of the Kingswell family of roofing companies, founded in 2000, and we run on a simple set of rules: say the price first, show up when we said we would, leave the roof and the yard cleaner than we found it, and put every guarantee in writing.
Common Owens Corning Roofing Problems We Solve in Ontario
- Brittle WeatherGuard underlayment under concrete tile. Ontario summers routinely hit 105 to 110 degrees, and that attic heat bakes underlayment until it turns brittle and loses its water-shedding ability. We see this constantly on 1980s and 1990s tract homes, where original Owens Corning underlayment has cracked and separated long before the tile above shows any obvious damage.
- Thermal cracking and nail-popping on Duration shingles. On older Ontario homes, especially the 1920s to 1950s bungalows along the Euclid Avenue corridor, attic temperatures spike hard in summer. Duration shingles are tough, but extreme thermal cycling can crack the shingle mat and pop fasteners, creating slow leak paths that show up months later as ceiling stains.
- Seal-strip failure after Santa Ana wind events. When Santana gusts hit 60 to 70 mph through the Pomona Valley passes, architectural shingles on west- and north-facing slopes take the worst of it. We regularly find granule loss and broken seal strips along the windward edges of Owens Corning shingle fields after a strong event.
- Flashing and vent details pulling away from the roof plane. Intense UV exposure and wide temperature swings in Ontario cause chimney and pipe flashing on Owens Corning systems to degrade and pull away from the decking. The shingles might look fine, but the flashing is where water gets in, often years before the shingle field shows wear.
- Localized underlayment failure beneath displaced tile. Ontario’s tract homes often have tile set in minimal mortar with no fastening clips. When wind lifts a section of tile, the underlying Owens Corning underlayment is suddenly exposed to rain and UV, and if it’s already brittle from heat, a few displaced tiles can turn into a full slope leak.
Owens Corning Service in Ontario: What Local Conditions Mean for Your Equipment
Ontario sits directly in the Pomona Valley wind corridor, downwind of the passes that channel Santa Ana winds into the Inland Empire basin. Gusts above 60 mph are not rare here, and they hit differently than they do in coastal markets. Most Ontario homes carry concrete tile because San Bernardino County fire codes have long mandated Class A roofing near the wildland interface. That tile is heavy and generally tough, but the way it was installed on 1990s tract homes creates a problem that keeps us busy every wind season. Builders routinely set tile with minimal mortar and skipped the secondary fastening clips, so after 25 years of 110-degree attic heat cycling, those tiles are barely seated. One strong Santana can strip an entire west-facing slope before morning. For an Owens Corning roof, that matters because the underlayment beneath the tile is the real waterproofing layer, and when it’s the original WeatherGuard from the 1990s, it’s often too brittle to survive the exposure once the tile is gone. We’ve lost count of the calls that come in where a homeowner says the roof “just started leaking” after a wind event, only for us to find a field of displaced tile and underlayment that’s cracked like old leather underneath.
Owens Corning Models & Products We Service in Ontario
We work on the full Owens Corning residential roofing range that shows up in Ontario homes. That includes Duration Series architectural shingles, Oakridge Series architectural shingles, TruDefinition Duration shingles, and WeatherGuard HP underlayment. We use genuine Owens Corning shingles and underlayment when we’re replacing like-for-like, and we specify Owens Corning-compatible ventilation and flashing components instead of cheap generic substitutes that can compromise the warranty and shorten the life of the system. For tile roofs, we stock the repair supplies that make sense for Ontario specifically: fastening clips, compatible underlayment, and matching concrete tile for resets. If you’ve got an Owens Corning tile underlayment question, we’ll give you a straight answer about replacement versus patch. When more than 20 percent of a field shows brittleness, patching just means another call next season.
Owens Corning Service Pricing in Ontario
Most Roof Repair - Ontario work lands in predictable ranges, and we believe you should know those numbers before you call. Minor shingle repair, like replacing a handful of damaged Duration shingles and sealing exposed fasteners, typically runs $350 to $800. Flashing repair around a chimney or vent generally falls between $400 and $1,200, depending on access and the condition of surrounding material. Full underlayment replacement under a concrete tile field is the bigger job, usually $6,000 to $14,000 for a typical Ontario tract home, and that includes lifting and resetting the tile, replacing the underlayment, and adding fastening clips where the original install skipped them. A full Owens Corning shingle replacement on a smaller Ontario bungalow might run $12,000 to $22,000. Every estimate we write is free, itemized, and in your hands before work starts. Call (945) 303-9821 for your exact number, and no, the price won’t change at the door.
Serving Ontario, CA - Our Local Coverage Area
We’re based in the Ontario 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 - Owens Corning Roofing in Ontario
Owens Corning doesn’t manufacture concrete tile, but they make the underlayment and ventilation products that go beneath the tile systems covering most Ontario homes. On a tile roof, the underlayment is the actual waterproof layer, and Owens Corning’s WeatherGuard HP is one of the most common products we find on local homes. We install and replace Owens Corning underlayment under concrete tile every week in Ontario. Call (945) 303-9821 and we’ll tell you what’s under your tile and whether it’s time to replace it.
Sustained attic temperatures above 100 degrees accelerate underlayment degradation faster than anything else in Southern California. In Ontario, that heat turns Owens Corning underlayment brittle after 20 to 30 years, causing it to crack, shrink, and separate at seams. Once that happens, wind-driven rain under lifted tile finds its way straight to your decking. If your tile roof is from the 1990s and still has original underlayment, call (945) 303-9821 for a free estimate before the next wind season.
You can, and we’ve done it. Ontario homes are typically framed for the dead load of concrete tile, which is heavier than shingles, so switching to an Owens Corning Duration shingle system removes weight from the roof structure, not adds it. It’s a personal choice, though. Tile has aesthetic and fire-rating advantages that many Ontario homeowners want to keep, and we’ll give you an honest comparison before any commitment. Call (945) 303-9821 to talk through the trade-offs, and we’ll write up a price for whichever direction you choose.
Not always, but often. It depends on what we find when we lift the surrounding tile and look at the underlayment. On 1990s Ontario tract homes, the underlayment is usually original Owens Corning WeatherGuard that’s now 25-plus years old and likely brittle from heat cycling. If more than 20 percent of the field shows cracking or loss of flexibility, we recommend full replacement rather than patching, because patching means another wind event will expose the weak area again. Call (945) 303-9821 and we’ll inspect it for you, show you photos, and write the estimate either way.
Owens Corning architectural shingles are rated for high wind when installed to the manufacturer’s specification, which includes the right fastener count, seal-strip activation, and starter course details. In Ontario, we install Duration shingles with wind in mind because we know west- and north-facing slopes in the Pomona Valley wind corridor take the brunt of Santana events. The failure we see most is granule loss and seal-strip separation on older shingle fields, not on correctly installed new ones. Call (945) 303-9821 for a free wind-damage inspection, and check your shingle field after the next big gust.
Service Areas Near Ontario
We serve Ontario and the surrounding Inland Empire, and we also run crews in Sacramento and the Bay Area. You’ll find our Owens Corning sales & service team working throughout the region. See our Ontario service area page for the full list of neighborhoods and ZIP codes we cover, from Rancho Cucamonga to Chino and into the foothill communities. Interested in our work up north? We provide Owens Corning service in Elk Grove and Owens Corning service in Santa Rosa through the same Kingswell family of companies.
Book Your Owens Corning Service in Ontario Today
After a February Santana event, a call came in from a 1996 tract home off Euclid Avenue. The west slope had shed nearly 40 concrete tiles overnight. Our crew reset the field, tore out the failed Owens Corning underlayment beneath, put down new WeatherGuard, and added fastening clips to every reinstalled tile. The homeowner avoided a full re-roof because we caught it before the decking was compromised. That’s the kind of call we want from you. Know the price before the first tile moves. Call (945) 303-9821 for a free estimate.
Written by Greg Holloway, Owner at Tilehurst Roofing, serving Ontario and the Inland Empire.