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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 Glendora, CA | Hawk Roof Repair
We provide independent CertainTeed roofing service across Glendora, from the flat 91740 core to the foothill 91741 slopes, and also offer Roof Repair in Glendora tailored to each area. The thing that makes our CertainTeed work here different is that we write every scope around Glendora’s two roof climates: wind-blasted tile and shake upslope, and low-slope tie-in leaks down on the flats. One CertainTeed system ages very differently depending which side of town your home sits on. Call (877) 731-1384 for a free estimate.
Why Glendora Residents Choose Us for CertainTeed Service
We’re an independent CertainTeed roofing contractor, which means our loyalty runs to the homeowner rather than a dealer program. Our crews have torn off, decked, and re-roofed enough CertainTeed Landmark and Presidential systems across Glendora—and completed Azusa CertainTeed service calls nearby—to know exactly how these products age in foothill wind and inland heat. Noel Ibarra grew up in the Sultana neighborhood of Ontario, where summer heat and desert windstorms taught him early that a bad roof is never a small problem. He picked up his fundamentals through the construction trades program at Chaffey College, then spent years working alongside experienced crews across the Inland Empire before going out on his own. That background shapes how we inspect: we look for the hairline cracks and failed flashing that other contractors walk right past.
Beyond CertainTeed sales & service, we work with six other leading shingle and roofing material brands. Seven leading brands, you choose the material that fits your home and budget. We inspect first, every time, no ladder-top sales pitch.
Styles & brands we work with






Common CertainTeed Roofing Problems We Solve in Glendora
- Wind uplift and seal-strip failure on foothill ridges. On exposed 91741 ridgelines, Santa Ana gusts funneling out of the canyon mouths can break the self-seal on CertainTeed Landmark tabs. Once a few shingles lift, the rest unzip in a line. We re-secure sound shingles and replace the failed field before a small lift becomes a bare deck.
- Sun-baked granule loss on older CertainTeed fields. Decades of dry inland summers leave asphalt shingle surfaces chalky and bald in patches. Granule loss accelerates ember catch during a Santa Ana event, which matters a lot on the foothill side of Glendora. We’ll tell you straight when a field is past patching.
- Old-flashing leaks at low-slope and patio tie-ins. The flat 91740 tracts have patio-cover and flat-roof seams where CertainTeed field transitions and old step flashing fail at the same joints every rainy season. We rework the flashing and tie-ins rather than laying shingles over the old joint.
- Decking and underlayment degradation under shake and tile. Original wood-shake roofs that survived the dry summers often hide rotted sheathing and spent felt underneath. The CertainTeed shingle or tile goes back over soft deck unless we inspect and replace it first. We inspect first, every time.
- Underlayment failure on Mediterranean tile roofs. Upslope 91741 tile homes look intact from the street but leak underneath when the original felt has failed. We lift and relay the field over new underlayment, which restores the roof without a full re-tile.
CertainTeed Service in Glendora: What Local Conditions Mean for Your Equipment
Glendora splits into two roof climates inside the same ZIP pair, and that fact changes how we scope every CertainTeed job. The flat 91740 core carries original wood-shake and low-slope built-up roofs with patio and flat-roof tie-ins that leak at the same old seams every rainy season. Those homes need flashing and tie-in work first. The 91741 foothill homes are Mediterranean tile that fails at the underlayment and at wind-exposed ridge and edge detail. Those homes need underlayment replacement and wind-resistant fastening. A CertainTeed scope written for one side of town rarely matches the other. If water found a way in, there’s a reason, and we’ll show you exactly where.
CertainTeed Models & Products We Service in Glendora
We service the full CertainTeed residential line across Glendora service area homes: Landmark architectural shingles, Presidential Shake and Presidential Solaris, Xtreme WeatherReady barrier underlayment, and Monogram shingle color lines. We match CertainTeed factory shingles, starter, ridge, and underlayment to the existing system, and we use quality aftermarket flashing and vent boots only where they outperform the OEM part. If a field is sun-bald or wind-damaged, we patch what’s sound and replace what isn’t. When a CertainTeed roof is past repair, we’ll tell you straight that the honest call is a full replacement.
See the difference
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AfterCertainTeed Service Pricing in Glendora
What drives your CertainTeed service cost in Glendora is the scope of the failure and which side of town you’re on. A simple flashing repair at a patio tie-in in the 91740 flats runs lower than a tile underlayment replacement up in 91741, because the second job means lifting and relaying field tile over new felt. We give you a written line-item quote before work starts, and we never change the price mid-job unless the decking underneath turns out to be rotted and you approve the extra in writing.
| Service | Typical Range in Glendora |
|---|---|
| Flashing repair (patio or flat tie-in) | $275 – $550 |
| CertainTeed shingle patch (small wind or impact area) | $350 – $700 |
| Full CertainTeed roof replacement | $11,000 – $26,000+ |
| Tile underlayment replacement (91741 foothill) | $7,500 – $18,000 |
Call (877) 731-1384 for an exact quote. Estimates are free, and we’ll walk you through what’s failing, what’s sound, and what it costs to fix each part.
Serving Glendora, CA — Our Local Coverage Area
We’re based in the Glendora area and 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 Glendora
Most CertainTeed in Citrus and Glendora repairs run between $275 and $700 for flashing, tie-in, or small shingle patches, while full replacements or tile underlayment work run five figures. The spread depends almost entirely on whether your home sits in the flat 91740 core or upslope in 91741. Call (877) 731-1384 for a written line-item quote, free of charge.
No. We’re an independent CertainTeed service provider, not manufacturer-affiliated or authorized. That means we’re not locked into a dealer program’s product quotas, so we recommend the CertainTeed product that matches your roof and budget, or a different brand if it fits better.
Small repairs, flashing work, and single-field patches are usually done in one visit. Full replacements and tile underlayment relay jobs take longer, depending on roof size and whether we need to re-deck soft sheathing. We’ll give you a schedule before we start and stick to it. Call (877) 731-1384 to get on the calendar.
We service Landmark architectural shingles, Presidential Shake, Presidential Solaris, Xtreme WeatherReady underlayment, and Monogram color lines. We match factory shingles, starter, ridge, and underlayment to what’s already on your roof, and we use aftermarket flashing only where it outperforms OEM.
Generally not. Original wood-shake roofs on foothill 91741 streets are often bald and brittle from decades of dry summers, which makes them catch embers faster during a Santa Ana event. If the shake is sound we can talk about retrofit options, but if it’s deteriorating, the honest call is usually a full replacement with a Class A fire-rated CertainTeed system, similar to the CertainTeed repair in Irwindale work we handle. Call (877) 731-1384 for a straight diagnosis, free.
Service Areas Near Glendora
We serve Glendora and the surrounding foothill and valley communities: Ontario, Upland, Montclair, Chino, Rancho Cucamonga, and Claremont. For CertainTeed service in Covina or CertainTeed service in La Mirada, we cover those areas too.
Book Your CertainTeed Service in Glendora Today
Call (877) 731-1384 to schedule your free estimate. We’ll inspect your CertainTeed roof, document what’s failing, and give you a written quote that covers exactly what needs doing, no more, no less.
Written by Noel Ibarra, Owner at Hawk Roof Repair, serving Glendora and the Inland Empire.