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Owens Corning Construction in Ontario, CA | San Bernardino Contractors
We’re an independent Inland Empire contractor installing and repairing Owens Corning roofing and insulation systems across our Ontario service area. The short answer: if you own a 1950s – 1970s ranch home in 91761 or 91764, or run a tilt-up warehouse along the 60/10 corridor, we handle Owens Corning shingle replacement, roof repair, and insulation work that holds up to Santa Ana winds and inland heat cycling. Call (855) 473-5620 for a free estimate. We are not authorized, sponsored, or warranted by Owens Corning. We install and repair their products on our own workmanship and our own warranties.
Why Ontario Residents Choose Us for Owens Corning Service
Most Ontario homeowners don’t need a roofer who’s never touched a Duration shingle. They need someone who knows how Owens Corning products actually behave on a 1960s ranch roof when the Santa Anas kick up in September. That’s us. Ruben Castillo grew up on the Westside of San Bernardino watching his uncle reroof houses and frame garages, then got his construction technology training at San Bernardino Valley College. He spent close to two decades working across the Inland Empire, and that hands-on education shapes how we approach our Owens Corning services in Ontario. We stock genuine Owens Corning shingles matched to the existing line and profile, so color and exposure line up. We also use quality aftermarket underlayment, ice-and-water membrane, and flashing where it outperforms the OEM accessory. One contractor, every phase. No subcontractor shuffle.
Styles & brands we work with
Common Owens Corning Construction Problems We Solve in Ontario
- Thermal cracking and surface crazing on 3-tab and older architectural shingles. Ontario’s repeated heat cycling, especially on south- and west-facing slopes of 1950s – 1970s ranch roofs in 91761 and 91764, cracks shingles faster than almost anything else we see. Once the asphalt loses its flex, the tabs split and water gets under them.
- Wind-lift and tab creasing along ridge, hip, and rake edges. Santa Ana events hit Ontario hard. If the starter course or edge nailing was under-driven on an original-era install, the shingles lift and crease. We see this constantly on tract homes that still have their first roof.
- Granule loss and exposed fiberglass mat on aging Duration shingles. When a Duration roof runs past its service life in Ontario’s heat, the granules let go and the mat shows through. Wind-driven rain and grit then get into the deck. That’s a replacement signal, not a repair signal.
- Flashing and valley leaks where shingles have been re-layered or patched over failed sealant. This shows up most often on additions and ADU tie-ins where the roofline meets the original house. A patch over failed sealant buys a year. Then the leak comes back worse.
- Low-slope Owens Corning systems on commercial tenant-improvement roofs. Along the 60/10 corridor, we regularly run low-slope Owens Corning systems on warehouse TI projects. Ponding water and heat-stressed membrane seams are the two big failure points there.
Owens Corning Service in Ontario: What Local Conditions Mean for Your Equipment
Ontario’s split between tilt-up warehouse construction along the 60/10 corridor and dense 1950s – 1970s single-story tract homes means we regularly run low-slope Owens Corning systems on commercial tenant-improvement roofs and steep-slope shingle replacement on the same street. That’s a job mix most neighboring Inland Empire cities don’t produce at this scale. A roofer who only does residential work won’t know how to handle the low-slope membrane details on a warehouse TI. A commercial roofer won’t know how to match a 1960s ranch home’s original shingle profile so the new roof doesn’t look like a patch job. We handle both. On a 1960s ranch home off the 91762 side of town, our crew found an original Owens Corning 3-tab roof with heat-cracked tabs and lifted shingles along the hip after a Santa Ana wind event. We stripped the deck, replaced the failed edge nailing and step flashing at the patio addition tie-in, and installed Owens Corning Duration architectural shingles with a fresh ice-and-water membrane in the valleys. The homeowner got a wind-rated roof that finally matches the local heat and wind load instead of another patch.
If it’s not built right the first time, you’re just paying for it twice.
Owens Corning Models & Products We Service in Ontario
We install and repair the full Owens Corning shingle line: Oakridge Architectural Shingles, Duration Series (Duration and Duration Premium) Architectural Shingles, and Supreme and WeatherGuard 3-Tab Shingles. We also work with FOAMULAR Rigid Foam Insulation boards for attic and wall insulation retrofits. On parts, our stance is practical: we install genuine Owens Corning shingles matched to the existing line and profile, and we use quality aftermarket underlayment, ice-and-water membrane, and flashing where it outperforms the OEM accessory. We keep common profiles and accessories stocked locally so Ontario homeowners aren’t waiting on a warehouse order from Ohio.
See the difference
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AfterOwens Corning Service Pricing in Ontario
Here’s what Owens Corning work costs in Ontario’s market. These are the ranges we quote from, and they stay consistent whether you need Owens Corning repair in Montclair or work right here in Ontario.
| Service | Price Range |
|---|---|
| Roof Replacement | $8,000 – $20,000 |
| Roof Repair | $400 – $1,800 |
| Metal Roof Installation | $15,000 – $40,000 |
| Tile Roof Repair | $600 – $2,500 |
| Custom Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
What drives the cost: roof pitch, number of layers that need stripping, deck condition, and whether we’re tying into an existing addition or ADU. A free estimate includes a roof inspection, line-item quote, and a straight answer on repair versus replace. Call (855) 473-5620 to schedule yours.
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 Construction in Ontario
Yes. Those 1950s – 1970s ranch homes make up a big share of our Owens Corning work in Ontario. We match the new shingles to the existing line and profile so the roof looks right from the curb, and we replace failed edge nailing and flashing at the same time. Call (855) 473-5620 for a free roof inspection and exact quote.
South- and west-facing slopes take the brunt of Ontario’s afternoon heat, and repeated heat cycling makes the asphalt lose its flex. The tabs crack, the granules let go, and water gets in. It’s not a defect in the shingle, it’s a climate reality. Newer architectural shingles like Duration handle it better than older 3-tabs, but every roof in Ontario eventually needs replacement. Call (855) 473-5620 and we’ll tell you honestly whether yours has life left.
Sometimes. A single flashing leak or a small section of lifted shingles can often be repaired. But once you see widespread granule loss, heat cracking across multiple slopes, or water staining in the deck, replacement is the cheaper path over five years. We’ll show you photos and walk you through the numbers. Call (855) 473-5620 for a free estimate and we’ll give you the straight answer.
Yes. Low-slope Owens Corning systems on warehouse TIs are part of our regular rotation, including Upland Owens Corning service and throughout Ontario. We deal with ponding water, heat-stressed seams, and the detail work where a commercial roof meets an office build-out. If you need a TI roof scoped or repaired, call (855) 473-5620.
Title 24 energy requirements and Ontario’s zoning rules for ADUs mean the roof tie-in can’t be an afterthought. The new roof section has to meet current insulation and solar-ready standards, and the flashing where it meets the original Owens Corning roof has to be done right or you’ll chase leaks forever. We pull permits, we handle the inspections, and we build the tie-in so it holds. Call (855) 473-5620 to talk through your ADU or addition roof.
Service Areas Near Ontario
Alongside Ontario, we run Owens Corning jobs in Fontana, Bloomington, Rialto, Sunnyslope, and Glen Avon. Check our Owens Corning service in Norco and Owens Corning service in Highland pages for coverage details.
Book Your Owens Corning Service in Ontario Today
If your roof is heat-cracked, wind-lifted, or just past its service life, don’t wait for the next Santa Ana. Call (855) 473-5620 to schedule your free estimate. We’ll inspect your roof, give you a line-item quote, and tell you straight whether you need a repair or a full replacement.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving Ontario and the Inland Empire.