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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 Monrovia, CA | Hawk Roof Repair
We provide independent Roof Repair – Monrovia for CertainTeed systems, handling shingle replacement, flashing repair, and full replacements on Landmark, Presidential, and Horizon systems. The thing that separates our CertainTeed work here is simple: we know how these shingles actually perform against San Gabriel foothill sun and Santa Ana wind, not just how they look on a sample board. Call (877) 731-1384 for a free estimate on any CertainTeed roof in Monrovia’s 91016 or 91017 ZIP codes.
Why Monrovia Residents Choose Us for CertainTeed Service
We inspect first. Every time. No ladder-top sales pitch. Noel Ibarra grew up in the Sultana neighborhood of Ontario and learned early that a leaking roof is never small, a lesson he brought with him through Chaffey College’s construction trades program and more than a decade running Hawk Roof Repair across the Inland Empire. His crews have reroofed Monrovia homes in CertainTeed Landmark, Presidential, and Horizon for years, so when we walk a foothill slope in north Monrovia, we’re reading granule wear and nail patterns like a mechanic reads an engine. Our CertainTeed sales & service work spans inspection, repair, and full replacement, and because we carry seven material brands, including GAF, Owens Corning, IKO, Atlas, Tamko, and Boral, the recommendation is always matched to your home and budget, never to what we happen to stock. We’re an independent CertainTeed service provider, not authorized or sponsored by the manufacturer, which means our read on repair versus replace is our own.
Styles & brands we work with






Common CertainTeed Roofing Problems We Solve in Monrovia
- Granule loss and surface checking on south-facing slopes. Monrovia’s foothill orientation means south- and west-facing planes bake under intense UV for hours every day, and CertainTeed Landmark surfaces can shed granules years before the shingle fails structurally. We document the extent and tell you honestly whether a repair buys time or a replacement is overdue.
- Wind-lifted tabs and torn hip-and-ridge caps after Santa Ana events. When Santa Ana winds hit Monrovia’s foothill streets, they find the exposed cap rows on CertainTeed roofs and work them loose, especially where original fasteners were high-nailed. We resecure or replace caps sized for the wind exposure rather than just tacking down what lifted.
- Leaks at chimney and sidewall flashing on Landmark installations. Monrovia’s winter rains expose step and counter-flashing that was never upgraded during a reroof, and water follows that path straight into the home. If water found a way in, there’s a reason, and we’ll show you exactly where.
- Shake-to-shingle conversions failing at the deck, not the shingle. Many homes near Old Town Monrovia had original wood shake replaced decades ago with CertainTeed shingles over marginal decking. Leaks on these roofs often trace back to soft sheathing or flashing details, not the shingle itself.
- Premature seal-strip failure along ridge and hip lines. Monrovia’s heat and reflected light from the San Gabriel front range accelerate seal-strip breakdown on exposed cap shingles, which is why we inspect those planes differently during every foothill reroof.
CertainTeed Service in Monrovia: What Local Conditions Mean for Your Equipment
Monrovia’s north-side foothill streets sit directly under the San Gabriel front range, so south- and west-facing CertainTeed shingle slopes there take far more reflected heat and wind-driven sun than comparable roofs a mile south on the flat. This changes how we inspect and prioritize those planes during a Monrovia reroof. On a Craftsman bungalow off North Canyon Boulevard in north Monrovia, the original wood shake had been replaced decades earlier with CertainTeed Landmark shingles, and the south-facing plane was granule-bald with lifted hip caps after a Santa Ana blow. We stripped that plane to the deck, replaced soft sheathing, upgraded the chimney counter-flashing, and installed fresh CertainTeed Landmark with new ridge caps sized for the wind exposure. The homeowner got a consistent, repairable field instead of chasing loose tabs every spring. That’s the difference between a generic reroof and one calibrated to where the house actually sits.
CertainTeed Models & Products We Service in Monrovia
We service all major CertainTeed residential product lines, including Landmark architectural shingles, Landmark Pro, Presidential Shake and Presidential shake-look luxury shingles, Horizon shingles, and Flintlastic modified bitumen flat roofing products. When a CertainTeed roof needs repair, we match the existing product line and color whenever it’s still available, and use quality aftermarket underlayment, flashing, and vent boots where OEM isn’t specified. For Monrovia homeowners, we keep common CertainTeed accessory stock accessible for fast turnaround on ridge caps, vent boots, and flashing repairs, so a small leak doesn’t become a drywall repair because someone had to special-order a boot.
See the difference
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AfterCertainTeed Service Pricing in Monrovia
CertainTeed roof work in Monrovia varies by scope, but here’s what drives the cost: the size and pitch of the affected plane, whether decking needs replacement, and how much flashing detail the home carries. A straightforward shingle repair or cap replacement runs less than a full plane replacement on a steep foothill slope, and a complete CertainTeed reroof with deck repairs and upgraded flashing sits at the higher end. Every estimate we provide is free and line-itemed, so you see exactly where your money goes before any work starts. Call (877) 731-1384 for an exact quote on your Monrovia roof, and we’ll tell you straight what it needs.
Serving Monrovia, CA — Our Local Coverage Area
We’re based in the Monrovia area and also provide CertainTeed in Bradbury, so we know 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 Monrovia
Yes, we match CertainTeed shingles and accessories to the existing product line and color whenever that color is still in production. If the color has been discontinued, we’ll show you the closest current option and confirm it before ordering. Call (877) 731-1384 for a free match check.
Your roof likely faces south or west and sits closer to the San Gabriel front range, which means it receives reflected heat and wind-driven sun that flatter lots south of Foothill Boulevard don’t experience. That exposure accelerates granule loss, seal-strip breakdown, and cap damage on CertainTeed shingles. We inspect for exactly those failure patterns and scope repairs or replacement based on what we find.
If your Monrovia home still has an aging CertainTeed field or an older wood shake roof under it, a Class A fire-rated CertainTeed replacement is a strong step. Many north Monrovia and Arcadia CertainTeed service homeowners are making exactly that switch, and we scope deck replacements, flashing upgrades, and ember-resistant details as part of the job. Call (877) 731-1384 to schedule a free inspection and get a direct assessment.
In most cases, yes. Failed step and counter-flashing at chimneys and sidewalls is one of the most common CertainTeed leak sources we fix in Monrovia, and it rarely requires a full replacement. We remove the damaged flashing, install new material sized for the exposure, and resecure the surrounding shingles. If decking or structural issues are present, we’ll show you photos and give you a straight repair-versus-replace recommendation.
Yes, we carry seven major material brands, including CertainTeed, GAF, Owens Corning, IKO, Atlas, Tamko, and Boral. Our Monrovia service area covers repairs and replacements across all of them, which means we can match an existing roof or recommend the material that fits your home and budget. Call (877) 731-1384 for a free estimate on any shingle or flat roof system.
Service Areas Near Monrovia
Our CertainTeed service work extends to Ontario, Upland, Montclair, Chino, Rancho Cucamonga, and Claremont. See CertainTeed service in Mayflower Village or CertainTeed service in San Bernardino for coverage details.
Book Your CertainTeed Service in Monrovia Today
Call (877) 731-1384 to schedule your free CertainTeed roof estimate in Monrovia. We’ll inspect first, scope what’s actually needed, and give you a line-item quote with no pressure and no obligation.
Written by Noel Ibarra, Owner at Hawk Roof Repair, serving Monrovia and the Inland Empire.