CertainTeed Roofing in Ontario, CA

CertainTeed Roofing in Ontario, CA | Ridgeway Roof Repair

We provide independent Roof Repair – Ontario and CertainTeed roofing service across Ontario, CA, from full replacements to targeted repairs on Landmark shingles, Flintlastic underlayment, and Monogram metal roofs. What makes our CertainTeed work different here is simple: we know how these products behave when the Santa Ana winds hit 50 mph through the Cajon Pass. Call (877) 588-7942 for a free estimate on any CertainTeed roof in Ontario.

Call (877) 588-7942

Ridgeway Roof Repair is a roofing-only contractor serving Ontario homeowners with inspection, repair, and full replacement. We’re not a manufacturer affiliate or an authorized CertainTeed dealer. We’re an independent service provider with years of hands-on experience servicing these roofs across the Inland Empire, which means our recommendations come from what we’ve seen fail and what we’ve seen hold up in your specific climate. Our full CertainTeed sales & service expertise covers every product line the company makes, but our Ontario work focuses on what actually sits on rooftops here.

Why Ontario Residents Choose Us for CertainTeed Service

Most roofing companies can slap shingles on. Few can tell you why your CertainTeed Landmark roof lost its ridge caps on the north slope during a wind advisory, or why your Flintlastic underlayment cracked on the west-facing side of your 1960s ranch. We can. Roland Cifuentes, our owner, learned the trade through Chaffey College’s construction technology program in CertainTeed in Rancho Cucamonga, then spent years working roofs across Ontario and the surrounding Inland Empire before building Ridgeway Roof Repair. He’s still the guy neighbors call when a Santa Ana event tears something loose or a home inspection turns up what the seller hoped nobody would notice.

Our entire focus is roofing. No plumbing calls, no siding side gigs, no general handyman work. Every technician we send, every conversation we have, every part we order is about your roof. That single-trade focus matters when you’re dealing with a manufacturer-specific problem like a CertainTeed metal roof backing out fasteners at the valley flashing. We’ve seen it before, we know what fixes it, and we won’t waste your time guessing.

• OEM parts, locally applied: We use CertainTeed OEM shingles, underlayments, and metal panels wherever compatibility matters, plus high-quality aftermarket ridge vents and fasteners when they offer better wind resistance for Ontario’s conditions.
• Roofing-only focus: No divided attention. Every job we take is roof inspection, roof repair, or roof replacement.
• Honest repair-vs-replace guidance: If your CertainTeed shingles are 15+ years old with widespread granule loss, we’ll tell you patching is a band-aid, not a fix.
• Ontario-specific experience: We know which slopes fail first when the winds come through. That changes how we inspect.

Common CertainTeed Roofing Problems We Solve in Ontario

CertainTeed makes good products. But Ontario’s wind corridor and thermal cycling expose specific weaknesses in specific ways. Here’s what we actually see on the roofs here:

• Flintlastic underlayment cracking on low-slope tile roofs: Ontario’s core 1950s-70s tracts are full of low-pitch gable roofs with concrete tile. After years of thermal cycling, the CertainTeed Flintlastic underlayment underneath can crack and tear, especially on south- and west-facing slopes where surface temperatures exceed 160°F in summer. Winter rains then find those weakened seams and you get leaks that never showed up in August.
• Landmark shingle granule loss and nail-pops along ridge caps after Santa Ana events: Repeated 40-60 mph wind events work ridge caps loose on north- and east-facing elevations first. We regularly see granule-shedding Landmark shingles with exposed nail heads right where the ridge meets the slope.
• XT 25 three-tab shingles going brittle on post-WWII tract homes: The older Ontario housing stock, especially in the 91761 and 91764 ZIP codes, is heavy with asphalt shingle roofs now at end of life. UV exposure weakens the sealant strips on XT 25 shingles, leaving the eaves and rakes vulnerable to wind uplift.
• Monogram metal roof fastener back-out at valleys and sidewalls: CertainTeed’s standing seam metal roofing expands and contracts with Ontario’s daily temperature swings. When the original install didn’t account for that movement, fasteners back out and flashing separates at valleys and sidewalls.
• Tile underlayment deterioration from heat before rain ever tests it: In Ontario’s semi-arid climate, the underlayment bakes and cracks long before winter storms arrive. By the time rain hits, the water goes straight to the decking. We’ve pulled apart tile roofs where the Flintlastic looked like a dried riverbed.

Tell me what you’re seeing and I’ll tell you what it means. That’s how we approach every diagnostic call. If you’ve noticed granules in your gutters after a wind event, that’s a specific data point. If you’re seeing water stains on the ceiling in December but not in July, that’s another. We translate those observations into a repair plan.

CertainTeed Service in Ontario: What Local Conditions Mean for Your Equipment

Here’s the thing about roofing in Ontario that most people don’t understand until they’ve lived through a few wind seasons: this city sits in the Santa Ana wind corridor, and the winds don’t hit every elevation equally. North- and east-facing slopes take the first and hardest blast when dry desert air funnels down the Cajon Pass. We’ve been on enough Ontario roofs after fall wind events to know that ridge caps and tiles blow off those elevations long before the south side shows any damage. In the 91761 ZIP code, where the 1960s ranch homes cluster, we consistently see north-slope ridge cap loss as the first point of failure on CertainTeed Landmark roofs. Compare that to CertainTeed in Upland or Pomona, where the geography breaks up the wind path and the same roofs hold up differently. That local difference shapes how we inspect every CertainTeed roof in Ontario: we pre-secure north- and east-facing ridge lines, and we check ridge and hip fastening before the wind advisories start, not after. It’s a simple step, but it’s one that generic roofers miss because they’re not reading Ontario’s specific wind patterns.

CertainTeed Models & Products We Service in Ontario

We service the CertainTeed product lines actually installed across Ontario’s housing stock, from post-WWII tract homes to newer master-planned subdivisions:

• CertainTeed Landmark architectural shingles: The workhorse shingle on Ontario homes built since the 1980s. We handle ridge cap replacement, valley repair, full roof replacement, and wind-damage repair with OEM hip and ridge shingles.
• CertainTeed XT 25 three-tab shingles: Common on older Ontario roofs now reaching end of life. We do targeted repairs where the shingles are still viable, and we’re straightforward about when replacement makes more sense.
• CertainTeed Flintlastic self-adhered underlayment: The critical layer under tile roofs in Ontario’s 1950s-70s tracts. We replace cracked and torn sections with OEM Flintlastic, and we check the decking underneath before reinstalling tile.
• CertainTeed Monogram standing seam metal roofing: Less common in Ontario, but present on some newer custom homes and commercial buildings. We repair fastener back-out, resecure wind-lifted panels, and rebuild flashing details at valleys and sidewalls.

For parts, we use CertainTeed OEM components where compatibility and performance demand it: shingles, underlayments, metal panels. Where aftermarket accessories genuinely perform better in Ontario’s wind corridor, like high-wind-rated ridge vents and upgraded fasteners, we’ll recommend those and tell you why. The goal is a roof that matches Ontario’s conditions, not one that matches what we happen to have in the truck.

CertainTeed Service Pricing in Ontario

FAQs – CertainTeed Roofing in Ontario

Service Areas Near Ontario

Ridgeway Roof Repair serves Ontario and the surrounding Inland Empire cities. We regularly work in Rialto, Bloomington, Fontana, Colton, and San Bernardino. If you’re in the mountains outside Ontario, we also provide CertainTeed service in Running Springs and CertainTeed service in San Antonio Heights. And for a full overview of the communities we cover, see our Ontario service area page.

Book Your CertainTeed Service in Ontario Today

If your CertainTeed roof has been through a Santa Ana wind event, or you’re seeing water stains, granule loss, or cracked underlayment, don’t wait for the next rain to test it. Call (877) 588-7942 to schedule your free CertainTeed roofing estimate in Ontario. We’ll walk your roof, show you what we find, and give you a written quote with the exact scope of work. No pressure, no vague answers, just a clear read on your roof.

Written by Roland Cifuentes, Owner at Ridgeway Roof Repair, serving Ontario and the Inland Empire with roofing inspection, repair, and replacement.