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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Why Ontario Homeowners Choose CertainTeed Roofing
Hawk Roof Repair provides CertainTeed repair in Ontario – inspections, repairs, and full replacements on Landmark, Presidential, XT25, and Flintlastic SA product lines. We’re not a CertainTeed-authorized contractor, and we’ll tell you that straight. What we are is a local crew that has pulled apart enough CertainTeed roofs in Ontario’s inland heat and Santa Ana wind cycles to know exactly how these shingles fail here, which means our repairs target the real cause, not just the visible symptom. Call (877) 731-1384 for a free estimate on any CertainTeed roofing work in Ontario.
Ontario’s roofing market is dominated by the constant turnover and re-roof cycle of large, densely packed, 1960s – 1980s postwar tract subdivisions. These aren’t custom homes with forgiving roof lines. They’re single-story stucco boxes under barrel tile or aging asphalt, baked by long inland summers and hammered by fall Santa Ana winds. CertainTeed shingles are common on these roofs – Landmark architectural shingles especially – and they hold up well when installed right. When they don’t, the failure usually traces back to two things: attic heat and wind uplift. We see it on the ground every week across Ontario, Montclair, and the Ontario Ranch edges.
Why Trust Hawk Roof Repair for Your CertainTeed Roofing?
CertainTeed shingles have their own manufacturing rhythm. The adhesive strips, the granule embedment, the mat construction – each model line ages differently, and you learn that by working with it, not by reading a brochure. Our crew has handled CertainTeed Landmark architectural shingles, Presidential Shake profiles, and XT25 three-tabs across Ontario for years. We know, for example, that Landmark shingles on a poorly vented Ontario attic will thermally blister long before they wear out – and that the fix starts with airflow, not with ripping off shingles. That’s the difference between a parts-swapper and a roofer who diagnoses. Noel Ibarra, our owner, grew up in the Sultana neighborhood of Ontario and trained through Chaffey College’s construction trades program in Rancho Cucamonga, also handling CertainTeed repair in Upland. He’s spent more than a decade running Hawk Roof Repair and built the company on catching the hairline cracks and failed flashing other contractors walk past. If water found a way in, there’s a reason – and we’ll show you exactly where.
We use genuine CertainTeed shingles and accessories on repairs so the patched section matches the existing course in color, profile, and exposure. For underlayment and flashing, we source quality aftermarket materials where they outlast OEM equivalents at equal or better cost. Our job is to keep your CertainTeed roof watertight and warranty-safe, not to sell you a brand logo.
Styles & brands we work with






Common CertainTeed Roofing Problems We Fix in Ontario
- Thermal blistering on Landmark architectural shingles. Ontario summer attic temperatures climb past 140°F when ventilation is marginal, and the asphalt in CertainTeed Landmark shingles starts to off-gas. You’ll see raised blisters across the field, especially on south- and west-facing planes. The shingles didn’t fail – the attic did. We fix the ventilation first, then replace blistered courses.
- Adhesive-strip failure and tab lift on XT25/XT30 three-tabs. Santa Ana winds hit Ontario in fall and winter with 40 – 60 mph gusts. CertainTeed three-tab shingles rely on adhesive strips to bond each tab to the course below, and once that bond bakes out over ten or fifteen Ontario summers, the wind finds it. Tabs lift, tear, and end up in the gutter. We re-nail lifted tabs, replace torn ones, and re-set the wind-nailing pattern to current code.
- Premature granule loss and exposed fiberglass mat. On shaded or north-facing slopes with poor airflow, CertainTeed shingles hold moisture longer than they should. Granules start sloughing off, leaving the fiberglass mat exposed and brittle. Homeowners notice piles of granules in the gutters after rain. If the mat is exposed across a third or more of the plane, that’s a re-roof conversation, not a patch job.
- Flashpoint delamination at valley and step-flashing transitions. CertainTeed shingles meeting aged underlayment at valleys and step-flashing are a common failure point in Ontario’s older tract homes. The underlayment under the valley metal bakes out, the metal loses its seal, and water follows the seam under the shingles. We see this constantly on 40 – 60 year old Ontario homes where the roof has been patched but never properly re-flashed.
- Ridge cap failure after wind events. CertainTeed ridge caps on older roofs were often nailed with a single nail per cap. Santa Ana winds lift the cap edge, rain gets under, and the leak shows up as a ceiling stain down the hall from the ridge line. We replace failed ridge caps with matching CertainTeed cap shingles and re-nail to the current pattern.
CertainTeed Parts & Our Repair-vs-Replace Approach
We stock genuine CertainTeed Landmark shingles in the colors most common across Ontario – the tans, browns, and weathered grays you see across the 1960s – 1980s tract grids – plus a range of CertainTeed ridge caps, starter strips, and accessories. If you need a partial repair on a roof from five years ago, the patch blends. If we’re matching a color we don’t have on the truck, we order it from our local supplier, usually within a day or two. For underlayment, we use Flintlastic SA self-adhered where the roof detail calls for it, but we’ll also install quality aftermarket synthetic underlayment when it outlasts the OEM at the same cost. Flashing gets evaluated case by case – sometimes galvanized steel, sometimes coated aluminum, depending on what the existing roof was built with and what Ontario’s water exposure actually demands.
The honest part is this: if more than a third of a CertainTeed roof plane has failed – wide granule loss, multiple lift points, dry-rot under the decking – we’ll tell you replacement is the right call. Patch over a roof that’s going to keep leaking, and you’re paying twice. Call (877) 731-1384 and we’ll give you a straight diagnosis either way.
Our CertainTeed Service Process – Step by Step
- 1
Diagnosis. We walk the roof and document what’s actually failing – not just what’s visibly damaged. On a CertainTeed roof in Ontario, that means checking tab bonds, ridge caps, valley transitions, and attic ventilation. We take photos and show you what we found before we talk about cost.
- 2
Repair or replacement recommendation. If the roof is repairable, we itemize the work: which courses get replaced, what parts we’ll use, and what the ventilation fix looks like if that’s the underlying cause. If replacement is the honest call, we say so and explain why, with the conditions we found on your specific roof.
- 3
Repair or install. We re-set the wind-nailing pattern to current Ontario code, install matching CertainTeed shingles and accessories, and address the underlayment or flashing at every transition. For replacements, we strip to decking, inspect for dry-rot, and rebuild from the deck up.
- 4
Test and verify. After the work is done, we water-test the repaired or replaced sections, confirm the ventilation is moving air, and leave you with a written summary of what was done and what we recommend watching over the next two seasons.
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Warranty coverage. We stand behind our workmanship, and CertainTeed’s material warranty stays intact when repairs are done correctly with matching materials. We’ll walk you through what’s covered and what isn’t.
See the difference
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AfterCertainTeed Products We Service & Install in Ontario
We service and install the CertainTeed product lines most common on Ontario homes: Landmark architectural shingles (the dominant architectural line on tract re-roofs), Presidential Shake and Presidential Solaris (the high-profile luxury line you’ll see on some Ontario Ranch and custom builds), XT25 and XT30 three-tab shingles (still common on older Chino CertainTeed service and Ontario roofs from the 1980s and 1990s), and Flintlastic SA self-adhered underlayment for low-pitch and valley applications. Our local supplier keeps the common Ontario colors and Landmark profiles in stock, so most repair work doesn’t wait on shipping.
We Also Service These Brands
We’re not locked into one manufacturer. Hawk Roof Repair also works with GAF and Owens Corning materials across Ontario, so the shingle you get is the shingle that fits your roof, your HOA requirements, and your budget – not the one we happen to have a supply agreement with. When a CertainTeed roof is what you have or what you want, we service it with full confidence. When another brand makes more sense, we say that too.
FAQs – CertainTeed Roofing Service in Ontario
Yes. We stock the most common CertainTeed Landmark colors used across Ontario, and if your specific color is discontinued or hard to source, we’ll find the closest available match and show you a side-by-side comparison before we install. Most Landmark colors from the last 10 – 12 years are still in production and match cleanly. Call (877) 731-1384 and we’ll confirm your color and availability.
Curling tabs on CertainTeed shingles almost always trace back to heat and adhesive-strip failure. In Ontario’s inland climate, attic temperatures spike, the asphalt in the shingle bakes, and the adhesive strip loses its grip. The tab lifts at the edge, then the Santa Ana winds catch it and tear it back. The fix is re-nailing the lifted tabs, replacing torn ones, and – critically – addressing the attic ventilation that caused the overheating in the first place. Patching tabs without fixing airflow means the same problem comes back next summer.
CertainTeed’s material warranty covers manufacturing defects, not wear-and-tear, wind damage, or installation errors. What matters for your warranty is that any repair or modification is done with matching CertainTeed materials and proper nailing patterns so you don’t void coverage on the rest of the roof. We install repairs warranty-safe, and we’ll tell you honestly whether your specific issue falls under manufacturer coverage or your homeowner’s insurance.
For low-pitch sections and valleys on Ontario tract homes – especially older homes where the underlayment has baked out – Flintlastic SA self-adhered underlayment is the strongest CertainTeed option. It seals around nails and holds at transitions where water wants to sit. For standard-pitch roofs, a quality synthetic underlayment performs as well or better than felt at the same installed cost, and that’s what we recommend on most re-roofs. The right choice depends on your roof’s pitch, existing decking, and exposure.
Depends entirely on what’s failing. If the shingles are sound but the ridge caps lifted or a valley flashing failed, that’s a targeted repair, and you might get another five to eight years. If you’re seeing granule loss across multiple planes, curling tabs in the field, and water damage in the sheathing, replacement is the math that makes sense – and we’ll show you the numbers so you can decide with your eyes open. Call (877) 731-1384 for an inspection and an honest recommendation, not a sales pitch from the ladder.
CertainTeed Landmark architectural shingle replacement in Ontario typically runs $5,800 to $14,000 depending on roof size, tear-off, decking condition, and whether your HOA requires a specific color or profile. Targeted repairs – ridge caps, vent boots, valley flashing – usually fall between $350 and $1,800. A full estimate is free, and the number we give you is the number on the invoice. Call (877) 731-1384 to schedule yours.
Book Your CertainTeed Service in Ontario, CA
If your CertainTeed roof is lifting, blistering, or leaking somewhere in Ontario, don’t wait for the next Santa Ana wind to find the weak spot. Call Hawk Roof Repair at (877) 731-1384 for a free estimate. We’ll inspect it, show you what we found, and give you a straight recommendation – repair or replace, with the numbers in plain sight.
Written by Noel Ibarra, Owner at Hawk Roof Repair, serving Ontario since day one.