







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Owens Corning Construction in Ontario, CA | Penhallow Remodeling Riverside
We’re an independent Owens Corning service provider working across Ontario, and the short answer is this: as a General Contractor - Ontario specialist, Penhallow Remodeling Riverside installs, repairs, and replaces Owens Corning roofing and insulation systems throughout Ontario, and the thing that sets our work apart locally is that we plan every shingle, vent, and underlayment course around Title 24 cool-roof rules, Santa Ana wind uplift, and the seismic retrofit demands you’ll find on older Ontario homes – not a generic spec sheet. Led by Trevor Nash, our crew works from real Ontario job history. Call (341) 895-1170 any time for a straight answer.
Why Ontario Residents Choose Us for Owens Corning Service

Trevor picked up his first tool belt at Los Angeles Trade-Technical College, and in the twenty-some years since, he’s spent the better part of them on Inland Empire roofs and remodels. That matters when you’re deciding who should handle Owens Corning work on your Ontario home. We know how TruDefinition® Duration® shingles behave after ten straight summers over 100°F. We know which VentSure® ridge vent gets overwhelmed on a shallow 3-tab pitch from a 1960s Ontario bungalow. And we know that a roof repair quote should come with a written number before we touch your decking.
Our Owens Corning sales & service work carries the same promise as every other job we do: a written price up front, real arrival windows, background-checked uniformed technicians, and the 365-Day Done Right Promise in writing. If a repair fails inside the guarantee period, we come back and fix it at no charge. That’s the Kingswell Way, and it’s been how we operate since 2004.
Styles & brands we work with






Common Owens Corning Construction Problems We Solve in Ontario
We see the same handful of Owens Corning failures repeat across Ontario’s housing stock. Here’s what actually shows up on roofs between Euclid Avenue and the 60 Freeway:
- Heat blistering and granule loss on Duration® shingles. South and west-facing roof planes in Ontario take direct afternoon sun for months at a stretch. After years of 100°F+ days, the asphalt layer starts blistering and the ceramic granules let go. We’ve had to advise full replacement when brittleness hits about 30% of a slope, because patch repairs on cooked shingles don’t survive two Inland Empire winters.
- Wind uplift and shingle tearing along eaves and rakes during Santa Ana events. Older Oakridge® installations rely on sealant strips that degrade badly under Ontario’s dry heat. When the Santa Anas blow through, those strips fail and shingle tabs start lifting or tearing clean off. We address this with proper starter strip replacement and fastener patterns rated for our local wind zone.
- VentSure® ridge vent blockage on steep-pitch 1950s and 60s roofs. A lot of Ontario’s original subdivisions were framed steeper than later tract housing. If a VentSure® vent was sized wrong for that pitch or installed with inadequate intake, the attic stops breathing. We see collapsed or clogged ridge vents that need reconfiguration with balanced soffit intake to meet current ventilation code.
- Flashing leaks around stucco chimneys and parapet walls. Mid-century Ontario homes often paired Owens Corning underlayment with original galvanized plumbing vents and wall penetrations. Water works its way in at the flashing transition where the underlayment wasn’t integrated properly. This is a leak source we trace and seal, often during full re-roofs.
- Low-slope 3-tab configurations on 1980s tract homes south of the 60. These roofs were laid with minimal slope. Converting them to architectural shingles properly requires complete tear-off, re-sheathing where the decking has sagged, and careful re-flashing so water doesn’t pond. We’ll tell you the truth about what that costs before we start swinging hammers.
Owens Corning Service in Ontario: What Local Conditions Mean for Your Equipment
Here’s the specific Ontario problem nobody in a different city needs to think about: the 1980s tract homes in the roughly C-shaped area south of the 60 Freeway were built with a distinctive Owens Corning 3-tab configuration on low-slope roofs. When you convert one of those to Duration® architectural shingles today, you can’t just lay over them. Title 24 cool-roof reflectance requirements force a complete tear-off and often new sheathing before the modern shingle lines can be installed properly. Neighboring cities like Rancho Cucamonga don’t enforce those reflectance rules the same way, which is why a contractor who does great work there can miss the requirement entirely on your Ontario permit, even if they offer our Bathroom Remodeling in Ontario. We don’t. We plan the reflectance evaluation into the initial estimate, so there’s no surprise line item after the tear-off starts.
Owens Corning Models & Products We Service in Ontario
We install and repair the full Owens Corning roofing line you’re most likely to see on Ontario homes: Oakridge® shingles, Duration® Series shingles, TruDefinition® Duration® shingles, and VentSure® ridge vents. For shingle repairs we use genuine Owens Corning accessories, including hip and ridge, starter strip, underlayment, and vent systems. That keeps the color and wind warranty intact. But we won’t blindly spec OEM flashing and fasteners when the job doesn’t call for them. Ontario’s seismic brace and bolt requirements sometimes mean a quality aftermarket flashing detail serves your home better. We’ll explain exactly which part we’re using and why it’s the right call for your roof.
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AfterOwens Corning Service Pricing in Ontario

You deserve a real number, not a vague shrug. Here’s what Owens Corning work runs in this market, based on our pricing across Ontario:
| Service | Price Range |
|---|---|
| Owens Corning roof replacement (Duration® shingles) | $8,000 – $20,000 |
| Roof repair (Owens Corning shingle or flashing) | $400 – $1,800 |
| Standing seam metal roof (with Owens Corning underlayment) | $15,000 – $40,000 |
What moves a roof replacement up or down? Tear-off depth, decking condition, chimney count, valley complexity, and the reflectance upgrades Title 24 demands. A free estimate from us always includes a written line-item price before any work starts. The number you get on day one is the number on the invoice. Call (341) 895-1170 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
You can repair a single slope if the decking and shingle condition allow it, but on most 1970s Ontario homes a partial replacement creates an ugly story: the new slope is a different shade of Owens Corning shingle and the existing half keeps failing. Title 24 reflectance rules may also push you toward a full tear-off if your low-slope roof now needs cool-roof compliance. Our advice usually lands on full replacement. Call (341) 895-1170 for an exact look at your roof and a written number either way.
For low-pitch Ontario bungalows, the right solution is a VentSure® ridge vent sized and installed with a balanced intake path, not just a bigger vent. On shallow roofs under 4/12, standard ridge vent profiles can choke or leak. We spec the vent to the pitch and add soffit intake where the original construction skipped it.
Duration® shingles carry a strong warranty, but the real-world performance depends on installation details: proper attic ventilation, correct fastener placement, and a radiant barrier if you want to lower attic temps further. We install them with those factors accounted for, because an Ontario summer can turn a poorly ventilated attic into an oven that prematurely ages any shingle. The warranty stands, and so does the install.
Yes. Many older Ontario homes along Euclid Avenue and in the historic downtown core were built with unreinforced masonry, and those walls need foundation bolting and bracing. We coordinate Owens Corning roofing and underlayment installation around the retrofit details, including parapet and chimney flashing, so the seismic work and the roof work don’t fight each other.
We remove and reset panels as part of a full roof replacement, coordinating with your solar installer if you have one, or handling the lift ourselves on straightforward arrays. The re-roof includes fresh Owens Corning underlayment and re-flashing at the solar mounts. Call (341) 895-1170 for a written quote that covers the panel detach and reset so you’re not surprised later.
Service Areas Near Ontario
We serve Ontario and the surrounding Inland Empire cities from our Riverside base. That includes Ontario service area coverage, plus regular work in Riverside, Anaheim, San Bernardino, and Claremont. Our Owens Corning service in Riverside and Owens Corning service in Anaheim run on the same written-price, written-guarantee standard.
Book Your Owens Corning Service in Ontario Today
Trevor Nash and the Penhallow Remodeling Riverside crew will give you a number before we pick up a tool. That’s just how this works. Call (341) 895-1170 for your free estimate and we’ll schedule a real arrival window that we actually keep.
Written by Trevor Nash, Owner at Penhallow Remodeling Riverside, serving Ontario and the Inland Empire since 2004.












