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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 Westmont, CA | Sunrise Roof Repair
We provide independent CertainTeed roofing service across Westmont, covering repair, replacement, and inspection on Landmark, Presidential, and Xtar systems. What makes our CertainTeed work different here is that we know how these shingles actually perform under Westmont’s marine layer and Santa Ana winds on 1940s-to-1960s tar-and-gravel tract roofs, not just how they look on a brochure. If you need a straight answer about your CertainTeed roof, call (877) 752-3460.
Why Westmont Residents Choose Us for CertainTeed Service
We’ve torn off, re-flashed, and replaced hundreds of CertainTeed installations across Westmont’s unincorporated tracts, and we’ve seen how Landmark architectural shingles lose granules faster under morning marine-layer dampness than they do three miles inland. That experience matters when you’re deciding between a patch and a tear-off. Ruben Acosta, who runs Sunrise Roof Repair, grew up in East LA and spent his first roofing summers helping his uncle patch flat roofs on older stucco homes, work that taught him how water actually moves on low-slope decks before he ever opened a shingle bundle. He brings that same read-the-roof-first approach to every CertainTeed job we take in Westmont. We’re an independent CertainTeed service provider, CertainTeed sales & service without a manufacturer badge, and we’ll tell you plainly what CertainTeed’s warranties do and don’t cover on a roof in this zip code.
Styles & brands we work with






Common CertainTeed Roofing Problems We Solve in Westmont
- Granule loss on Landmark-series shingles. Westmont’s marine layer keeps roofs damp through the morning, then the afternoon sun bakes them dry. That daily cycle strips mineral surfacing faster than inland roofs see, leaving the asphalt mat exposed to UV. We see Landmark roofs here with granule loss at year eight that a Gardena roof might not show until year twelve.
- Corroded fasteners and popped shingles. Most Westmont homes built between the 1940s and 1960s have minimal attic ventilation. Moisture gets trapped, nail heads rust, and CertainTeed shingles lift or slip. On re-roofs we almost always add venting before the new CertainTeed product goes down.
- Wind-driven rain pushing past flashing. When Santa Ana winds hit Westmont, they drive rain sideways into step and counter-flashing on low-slope roofs. The felt under the shingles gets wet, and by the time you see a ceiling stain, the flashing has been failing for a while.
- Thermal cracking over old tar-and-gravel decks. We regularly find CertainTeed shingles that were laid over original tar-and-gravel or roll roofing without a proper tear-off. The old surface moves differently in temperature swings, and the shingles crack or lose adhesion at the seams.
- Flat roof wear on Xtar and Flintlastic systems. Westmont’s flat roofs collect morning damp and wind-blown debris. If drainage is even slightly off, water ponds and stresses the seams on low-slope CertainTeed membranes. We inspect drainage before we patch anything.
CertainTeed Service in Westmont: What Local Conditions Mean for Your Roof
Here’s the thing most roofer pages won’t tell you about Westmont. Because this is unincorporated LA County, a re-roof over one of the original 1940s-50s tar-and-gravel decks goes through LA County building permits and inspection, not a city building department. Those older flat roofs almost always need a tear-off to sheathing plus added attic venting before CertainTeed shingles can go on. A Gardena or CertainTeed service in Inglewood municipal job typically doesn’t force that. We’ve sat through enough LA County inspections in Westmont to know what the inspectors look for: nailing patterns, underlayment type, venting calculations. That’s the difference between a CertainTeed roof that passes and one that gets a correction notice. It’s also why we don’t cut corners on the prep work that no one sees after the shingles are on. If you’re in the 90047 zip and your roof still has its original tar-and-gravel deck, plan for a full tear-off and deck inspection before any CertainTeed product touches the roof. We’ll walk you through the permit path and what the county will ask for.
CertainTeed Models & Products We Service in Westmont
We work on the full CertainTeed lineup that shows up on Westmont homes. That includes Landmark architectural shingles, Landmark Pro, Landmark TL, Presidential and Presidential shake-look shingles, and low-slope systems like Xtar polymer-modified roll roofing and Flintlastic self-adhered underlayment. When we repair a CertainTeed roof, we match the existing color lot with genuine CertainTeed components instead of slapping on a mismatched aftermarket shingle that voids the manufacturer’s warranty. We keep common Landmark colors and Flintlastic rolls stocked for fast turnaround on Westmont repairs, and we order specialty CertainTeed items with enough lead time that the job doesn’t stall halfway through.
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AfterCertainTeed Service Pricing in Westmont
CertainTeed roofing work in Westmont runs on a few variables. A flashing repair or small shingle patch typically starts around $400 to $800 depending on access and how much flashing needs rebuilding. A full CertainTeed Landmark re-roof on a Westmont tract home generally lands between $9,000 and $16,000, and that’s before the tear-off and venting work that older tar-and-gravel decks here usually require. Presidential shake-look shingles run higher because of the material cost and the extra install labor. The free estimate we give you includes a written line item for every part of the job, from sheathing replacement to county permit fees, so you can see exactly what you’re paying for. Call (877) 752-3460 and we’ll come out and give you a number that holds.
Serving Westmont, CA — Our Local Coverage Area
We’re based in the Westmont 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 Westmont
Westmont sits in a marine-layer zone that Gardena, a bit more inland, doesn’t feel the same way. Your roof gets damp every morning from coastal moisture, then dries hard under afternoon sun. That daily wet-dry cycling loosens the mineral granules on Landmark-series shingles faster than a roof that stays drier through the morning. If you’re seeing bare asphalt patches, call us at (877) 752-3460 and we’ll tell you whether it’s a repair or a replacement, honestly.
Almost never. The original tar-and-gravel decks on Westmont’s 1940s-60s homes move differently than a shingle underlayment, and layering CertainTeed shingles over them causes thermal cracking and adhesion failures. Plus, LA County inspectors in unincorporated Westmont will flag it, unlike CertainTeed in West Athens where city rules may differ. The right path is a tear-off to sheathing, deck inspection, added venting, then new underlayment and shingles. We’ll scope it correctly the first time.
Yes. Westmont is unincorporated LA County, so your re-roof permit comes from LA County Building and Safety, not a city building department. That process is more thorough on structural items like sheathing condition and attic venting, which is why we plan for a full tear-off and venting upgrade on older Westmont homes, similar to our CertainTeed repair in Lennox. We pull the permits and handle the inspections.
For wind resistance on Westmont’s low-slope tract roofs, we recommend CertainTeed Landmark or Landmark Pro architectural shingles with a proper six-nail pattern and a full Flintlastic underlayment. Landmark TL offers extra wind warranty coverage where it’s specified. The shingle matters less than the fastening and flashing, which is where most wind-driven rain gets in. Call (877) 752-3460 and we’ll assess what your roof actually needs.
If your Westmont flat roof is 50-plus years old and has lost its gravel surfacing after Santa Ana events, the felt underneath is likely sun-baked and brittle. A reflective coating can buy a year or two, but it won’t fix rotted decking or failed flashing. A full CertainTeed tear-off and re-roof gets you a wind- and marine-layer-ready roof instead of another patch. We’ll inspect and give you both options with real numbers.
Service Areas Near Westmont
Our crews cover Westmont and the surrounding communities, including Gardena, Inglewood, Lennox, and Lakewood. We also take CertainTeed service calls in CertainTeed service in Glendale and CertainTeed service in East Pasadena. If you’re in a neighboring area, call and ask, we’ll likely be able to get to you. For the full list, see our Westmont service area page.
Book Your CertainTeed Service in Westmont Today
You don’t need to know which CertainTeed product is right before you call. That’s our job. Call (877) 752-3460 and schedule a free estimate, and we’ll show up early. We show up before the neighborhood wakes up and leave before you have to ask if we’re done.
Written by Ruben Acosta, Owner at Sunrise Roof Repair, serving Westmont and the 90047 zip code.