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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
CertainTeed Roofing in Ontario, CA | Van Nuys Roofing Co
We provide independent CertainTeed roofing service across Ontario, handling repairs, replacements, and inspections on Landmark, XT 25, Presidential Shake, and Flintlastic systems. What sets our work apart here is simple: we diagnose slope-by-slope rather than condemning the whole roof after one Santa Ana event. CertainTeed shingles fail asymmetrically in Ontario’s heat and wind, and you need a crew that reads the roof that way. Call (866) 321-6172 to schedule an inspection or free estimate.
Why Ontario Residents Choose Us for CertainTeed Service
We work across seven major roofing material brands – GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral – so when we tell you a CertainTeed repair makes sense, it’s because the assembly dictates it, not because we’re locked into one manufacturer’s ecosystem. That matters in Ontario, where 1950s-to-1970s tract homes with aging three-tab sit blocks away from newer subdivisions with cool-roof tile. We’ve torn into enough CertainTeed Landmark and XT 25 roofs across the Inland Empire to know exactly how their shingle lines age under Ontario’s heat and Santa Ana wind cycles, not LA’s marine layer. Our crew is fluent in CertainTeed sales & service, and we know what’s repairable versus what’s heat-cracked beyond saving. Rick Dominguez learned the trade through the construction technology program at Los Angeles Valley College, then spent two decades on rooftops across the San Fernando Valley before starting Van Nuys Roofing Co. His rule on every job: if it doesn’t need replacing, we’re not going to tell you it does.
Styles & brands we work with
Common CertainTeed Roofing Problems We Solve in Ontario
- Torn and creased XT 25 tabs on windward slopes. After a Santa Ana blow, three-tab shingles on 1970s Ontario tract homes show lifted tabs on west- and north-facing slopes. The older sealant strips can’t re-adhere once tabs lift, so the damage spreads with every subsequent wind event. We replace affected tabs or the entire windward slope with a matching or upgraded CertainTeed product.
- Heat-cracked Landmark shingles along south-facing ridge caps. Ontario weeks above 100°F drive repeated thermal expansion against poorly ventilated 1950s-70s attic decks. Landmark architectural shingles crack and lose granules along those ridge lines faster than anywhere else on the roof. We address the ventilation issue alongside the shingle repair so the failure doesn’t return next summer.
- Dried-out flashing and vent boots on otherwise sound CertainTeed roofs. The rare but intense winter rain in Ontario finds pipe boots and valley metal left brittle by heat-aging long before the field shingles fail. We replace heat-damaged flashings with quality aftermarket materials that outlast OEM in this climate.
- Blistered and seam-split Flintlastic cap sheet on older built-up sections. Low-slope CertainTeed assemblies on those mid-century Ontario homes blister and pull at seams under sustained summer heat, often exposing original no-secondary-barrier decks. We patch localized damage when the deck is sound, and we’re honest when a full re-cover or tear-off is the better call.
- Lifted ridge caps on 1970s tract homes after wind events. Ridge caps on older CertainTeed installations lift when the original adhesive loses grip. We reset caps with fresh sealant and replace any that are cracked from heat cycling.
CertainTeed Service in Ontario: What Local Conditions Mean for Your Equipment
Ontario’s heat and Santa Ana winds hit CertainTeed shingle roofs asymmetrically. West- and north-facing slopes tear and lift tabs while south-facing ridges crack from thermal cycling, so we inspect slope-by-slope instead of condemning the whole roof after one storm. After a Santa Ana blow through the Euclid Avenue-area tract homes, our crew was called to a 1970s house with CertainTeed three-tab shingles where the wind had torn tabs across the entire west-facing slope and lifted ridge caps. We also handle CertainTeed in Upland with the same slope-by-slope approach. We replaced the wind-damaged slope with CertainTeed Landmark architectural shingles, reset the ridge caps, and re-flashed the dried-out pipe boots that were about to leak in the next rain. The result was a repaired, matching roof instead of a full tear-off. That’s the kind of read you need in Ontario, where mid-century built-up and shingle roofs sit alongside 1980s-2000s concrete tile subdivisions, and the same storm barely touches tile roofs installed under newer Title 24 cool-roof requirements. We don’t apply one rule to every house in 91764, 91761, or 91758. We read the roof, the slope, and the assembly, then tell you what’s actually going on up there.
CertainTeed Models & Products We Service in Ontario
We service the CertainTeed product lines most common across Ontario’s housing stock: Landmark architectural shingles on 1980s-2000s subdivisions, XT 25 three-tab on post-WWII tract homes, Presidential Shake on higher-end builds, and Flintlastic cap sheet systems on low-slope and built-up sections of older homes. We match CertainTeed OEM shingles and accessories where it keeps the assembly and color consistent, and use quality aftermarket underlayment and flashing where it outlasts OEM in this heat. Repairs get OEM-matched shingles from local supplier stock where available; full replacements give you the full CertainTeed lineup to choose from, plus equivalent options from six other major brands if you want a comparison before committing.
See the difference
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AfterCertainTeed Service Pricing in Ontario
CertainTeed roof repair in Ontario typically runs $450 to $1,800 for localized shingle or flashing work, while full replacements on standard Ontario homes fall between $9,000 and $22,000 depending on square footage, tear-off requirements, deck condition, and the CertainTeed product line you select. Partial slope replacements after wind damage usually land in the $1,200 to $4,000 range. What drives cost here is access and condition: steep pitches over two-story Euclid-area homes, compromised 1950s sheathing, and ventilation corrections all move the number. Your free estimate includes a slope-by-slope inspection and a written, line-item quote with no change orders down the line. Call (866) 321-6172 for an exact number on your roof.
Serving Ontario, CA — Our Local Coverage Area
We’re based in the Ontario area and know this community well, with CertainTeed service in Montclair available too. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – CertainTeed Roofing in Ontario
Santa Ana winds in Ontario consistently hit west- and north-facing slopes hardest, just as they do for CertainTeed in San Antonio Heights. The older sealant strips on three-tab XT 25 shingles lose their ability to re-adhere once a tab lifts, so the same storm tears dozens of tabs on the windward side while the leeward slope stays intact. We inspect slope-by-slope and replace only what’s damaged. Call (866) 321-6172 if one side of your roof looks ragged after a wind event.
Yes, and it’s not close. Ontario’s weeks above 100°F drive thermal expansion and contraction that coastal marine-layer roofs never experience. South-facing ridge caps on poorly ventilated 1950s-70s attic decks crack and shed granules years earlier than manufacturer wear projections. Heat-aging also dries out flashing and pipe boots faster than the shingle field fails in many cases. Call (866) 321-6172 for an honest condition assessment before assuming you need a full replacement.
Repair first when the failure is localized to one slope, ridge, or flashing detail. Replace when the CertainTeed shingle field is heat-cracked across multiple slopes or the deck underneath shows water damage. We inspect first and recommend second – if your 1970s tract home has one wind-torn slope and sound shingles everywhere else, a partial slope replacement makes more sense than a $15,000 tear-off. Call (866) 321-6172 to schedule the inspection.
In most cases, yes. We match CertainTeed OEM shingles to the existing color and line where those are still in production, which keeps the repair visually consistent across the slope. If the color has been discontinued or the field has weather-faded to a noticeable degree, we’ll tell you straight and discuss blending options or a full-slope replacement so the roof doesn’t look patched. Call (866) 321-6172 and we’ll check current CertainTeed color availability for your roof.
We do. Flintlastic and other CertainTeed cap sheet systems on mid-century Ontario homes need a different diagnostic eye than shingle roofs. We check for blisters, seam splits, and heat-exposed flashing, then recommend localized patching when the deck is sound or a full re-cover when multiple seams are pulling. Call (866) 321-6172 for a low-slope inspection.
Service Areas Near Ontario
We serve Ontario and the surrounding Inland Empire from our Van Nuys base, and we’re familiar with the neighboring communities where CertainTeed shingle and tile roofs face similar heat-and-wind conditions. If you’re searching for CertainTeed service in Tustin or CertainTeed service in North Tustin, our crew covers those areas as well. For a broader look at where we work, see our Ontario service area page. We also cover Van Nuys, Valley Glen, Sherman Oaks, and Encino for homeowners with property in both the Valley and the Inland Empire.
Book Your CertainTeed Service in Ontario Today
If your CertainTeed roof took damage in the last Santa Ana event or you’re noticing cracked shingles along the ridge line, call us for CertainTeed repair in Chino or Ontario. We’ll inspect slope-by-slope, tell you what’s repairable and what isn’t, and quote the work in writing. Call (866) 321-6172 for a free estimate.
Written by Rick Dominguez, Owner at Van Nuys Roofing Co, serving Ontario and the Inland Empire.