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CertainTeed Roofing in Ontario, CA | Windmill Roof Repair
We provide independent CertainTeed roofing service across Ontario, including repairs, shingle replacement, and full roof replacement. What makes our CertainTeed work different here is timing: most calls come in the two weeks after a Santa Ana wind event, when ridge caps and field shingles from aged Landmark and XT roofs end up scattered across 1970s-90s stucco tracts off the 60 and I-15. We’re not a CertainTeed dealer or authorized contractor, but we know these shingle assemblies from years of working on them in Ontario’s specific heat-and-wind climate. Call (866) 850-2496 to schedule a free estimate.
Why Ontario Residents Choose Us for CertainTeed Service
CertainTeed shingles behave differently after fifteen years of Ontario summers than they do in coastal cities. The adhesive strips on Landmark and XT lines harden under triple-digit heat, and when a 60-80 mph gust rips through the Cajon Pass corridor, tabs that should be bonded simply peel back. Ruben Ochoa, our owner, grew up in Pico Rivera and has spent more than two decades working roofs across the San Gabriel Valley and southeast LA County. He learned the trade through the construction technology program at East Los Angeles College, and he’s the kind of roofer who will tell you a targeted repair makes sense when it does, and full replacement is the honest call when it doesn’t. Because we work across seven shingle brands, CertainTeed sales & service is never a default push. We match the repair to what’s already on your roof.
Styles & brands we work with






Common CertainTeed Roofing Problems We Solve in Ontario
- Sealant strip cook-off on Landmark and XT field shingles. Ontario’s regular triple-digit summer days bake the adhesive dots until they harden. The shingle tabs no longer bond, so the first strong Santa Ana gust peels them back from the eave or rake. We see this most on 1970s-90s stucco tract homes where the original 3-tab roof is still in place.
- Granule loss exposing fiberglass mat on XT 25 and XT 30 3-tabs. Once a CertainTeed 3-tab roof passes the 20-25 year mark in Ontario’s inland heat, granules shed to the point the mat shows through. That exposed mat absorbs water and deteriorates fast. If it’s isolated to a slope or two, repair may work; if it’s across the whole roof, we’ll tell you straight.
- Ridge cap and hip shingle blow-off after fall wind events. The small cap pieces take the most uplift. After an October Santa Ana, we routinely find them in yards and driveways across Ontario, leaving the ridge vent or underlayment exposed to the winter rainy season.
- Fastener and flashing failures at valleys, vent boots, and wall terminations. Heat-aged sealant and rusted nails let water in during winter rains rather than during the wind event itself. We inspect these points on every CertainTeed repair call because the leak usually shows up weeks after the wind that caused it.
- Concrete tile roof systems over CertainTeed underlayment. Ontario’s north and east tracts have plenty of tile roofs from the 1980s and 90s. When tile shifts in wind or underlayment fails at penetrations, water gets under the tile and follows the deck. We repair those underlayment and flashing points without telling you to tear off a sound tile roof.
CertainTeed Service in Ontario: What Local Conditions Mean for Your Equipment
Ontario sits in the middle of the Inland Empire’s Santa Ana wind corridor, and that shapes every CertainTeed service in Montclair and surrounding areas we take. Dry 60-80 mph wind events off the Cajon Pass strip and lift aged asphalt shingles and tile across the city’s large inventory of 1970s-90s single-family homes. The roofing reality here is wind-uplift and heat-aging combined: a roof that survives a wet winter can still lose ridge caps and field shingles in a single October wind event. That’s why our CertainTeed calls cluster into a two-week window right after each fall Santa Ana, not during the winter rains. In the stucco subdivisions off the 60 and I-15, original 3-tab shingles with sealant strips long since cooked away are the first to go. Ember-resistant and wind-rated assemblies matter more here than rain shedding. When we recommend a CertainTeed Landmark or Presidential Shake replacement, we’re specifying for wind uplift resistance first, because Ontario’s fall gusts are the real test of a shingle roof.
CertainTeed Models & Products We Service in Ontario
We work on Landmark architectural shingles, including Landmark Pro; XT 25 and XT 30 3-tab shingles; Presidential Shake and Presidential TL luxury laminated shingles; and CertainTeed tile underlayment and accessory systems used under concrete tile. For repairs, we match the existing CertainTeed product by profile and color lot where it’s still available, rather than mixing a competing shingle onto a visible slope. Where CertainTeed doesn’t make the component, like flashing or certain underlayment, we use quality materials that meet or exceed the assembly’s needs. We keep common CertainTeed cap shingles and ridge accessories in stock for fast Ontario turnaround during wind season.
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AfterCertainTeed Service Pricing in Ontario
CertainTeed repair and replacement pricing in Ontario depends on roof size, slope, and how much wind damage exists. A targeted repair like replacing blown-off ridge caps or a few peeled field shingles costs significantly less than a full replacement, but when sealant failure runs across whole slopes, spot patching just moves the leak and full replacement is the cheaper path over time. Our free estimate includes a written line-item quote with no change orders once work begins. We pull permits where Ontario requires them and stand behind our workmanship. Call (866) 850-2496 for an exact quote, estimates are free.
Serving Ontario, CA — Our Local Coverage Area
We’re based in the Ontario area and also provide CertainTeed in Upland, knowing this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – CertainTeed Roofing in Ontario
Ontario’s triple-digit summers bake the sealant strips on Landmark and XT shingles until they harden and lose bond. The shingles don’t leak during summer because there’s no water driving under them. But when a Santa Ana gust hits in October, the unbonded tabs peel back from the eave or rake all at once. The wind does the damage; the winter rain that follows turns it into a leak. Call (866) 850-2496 for a free inspection after any wind event.
If the ridge caps blew off but the field shingles are still bonded and the roof is under 20 years old, a targeted CertainTeed repair in Chino and nearby areas usually works. We’match the cap shingle to the existing color and profile, re-nail to spec, and check the ridge vent underneath. If the field shingles on the same roof have also lost sealant across multiple slopes, we’ll show you why patching won’t hold and give you a straight replacement quote. Estimates are free.
The shingle warranty is tied to the product, not the contractor who installs or repairs it. Windmill Roof Repair is an independent contractor, not authorized, sponsored, or warranted by CertainTeed, but we install and repair to manufacturer specification. Any warranty questions are between you and CertainTeed; we’ll help you understand what the warranty actually covers before any work starts.
If your Ontario home still has original XT 3-tab shingles past 25 years, replacement is almost always the better call. The sealant strips have cooked away, granules are thin, and every Santa Ana is a gamble. We can keep patching individual blow-offs, but you’ll be calling us after every wind event. A full replacement with Landmark architectural shingles gives you a roof that actually bonds and handles Ontario’s wind. Call (866) 850-2496 and we’ll give you an honest line-item quote, no pressure.
Yes. Ontario has a large stock of 1980s-90s concrete tile roofs where the CertainTeed repair in Claremont and local underlayment is aging out. We handle underlayment repair at penetrations, valleys, and wall terminations, and we can reset and replace tile as needed. If the tile itself is still sound, we won’t push a full tear-off.
Service Areas Near Ontario
We serve the Ontario Ontario service area and surrounding communities across the Inland Empire and San Gabriel Valley. That includes West Covina, Norco, and Home Gardens, plus Pico Rivera where our owner grew up. We also bring the same CertainTeed expertise to CertainTeed service in Compton and CertainTeed service in Cudahy.
Book Your CertainTeed Service in Ontario Today
A roof doesn’t have to be complicated, it just has to keep the water out. If your CertainTeed shingles or tile roof took a hit in the last Santa Ana, call (866) 850-2496 to schedule your free estimate. We’ll inspect, give you a written quote, and tell you plainly what needs fixing and what can wait.
Written by Ruben Ochoa, Owner at Windmill Roof Repair, serving Ontario and the surrounding Inland Empire.