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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 Lomita, CA | Select Roof Repair
We provide independent CertainTeed roof repair and replacement throughout Lomita, covering Landmark shingles, NorthGate low-slope membranes, Presidential SR, and tile underlayment systems. What makes our CertainTeed work here different is that we inspect for condensation damage first, because Lomita’s nightly marine layer is a bigger factor than any storm this city sees. If you’re dealing with a ceiling stain or cracked shingles, call (855) 382-0485 for a free estimate.
Why Lomita Residents Choose Us for CertainTeed Service
CertainTeed products sit on a large share of Lomita’s postwar tract homes, from Landmark architectural shingles on gable roofs to NorthGate membranes on flat and low-slope sections. We work on those systems every week, which means we know how they actually age in this city’s damp coastal air, not just how they perform in a manufacturer’s spec sheet. Noel Carrasco, our owner, has spent 25 years fixing roofs across the South Bay, from CertainTeed in Torrance to systems in West Carson, and grew up just up the road in Midway City. He built Select Roof Repair on a simple observation: most leaks are misdiagnosed the first time. A homeowner deserves a straight answer, not an upsell. We’re an independent CertainTeed service provider, not a dealer or warranty agent for the brand. That independence matters because our recommendation is driven by what your roof actually needs, not by a contract with one manufacturer.
Styles & brands we work with
Common CertainTeed Roofing Problems We Solve in Lomita
- Presidential shingle blistering on south and west slopes. Intense summer UV bakes these slopes while the north side stays damp and algae-streaked. We see uneven decline on the same roof, with cracked, curling shingles facing the sun and moss holding moisture on the shaded side.
- NorthGate membrane alligatoring and seam splits. Lomita’s flat sections rarely see storm damage. Instead, years of nightly condensation and UV cycling dry out the asphalt, causing the surface to crack in a pattern that looks like alligator skin. Seams eventually split, and then water finds the deck.
- Landmark shingle leaks at valleys and vent boots. On shallow-pitch postwar roofs, old underlayment dries and tears under fog-driven dew cycles. The shingles themselves may look fine, but water sneaks through at transition points where the underlayment has failed.
- Tile underlayment rot on Spanish-style stucco homes. We find rot at eaves and ridges before any tile breaks. The underlayment beneath CertainTeed-approved tile systems degrades first, and by the time you see a ceiling stain, the deck may already be soft.
- Ponding and algae on flat roof sections. Persistent morning moisture keeps flat surfaces wet until mid-morning. North-facing slopes grow heavier algae than what you’d find on inland South Bay roofs, which signals trapped moisture that needs addressing before the membrane fails.
CertainTeed Service in Lomita: What Local Conditions Mean for Your Roof
Lomita sits at the edge of the Palos Verdes Peninsula, fully built out with 1940s to 1960s tract homes on small lots. That matters for CertainTeed in Rolling Hills Estates and Lomita in ways a generic roofing page won’t tell you. The nightly marine layer rolls in off Santa Monica Bay and keeps flat and low-pitch roofs wet until mid-morning, so condensation and ponding stains show up on roofs that never see a storm. On north slopes, algae growth runs heavier than on sun-baked inland South Bay roofs. During inspections, we check for condensation damage first: soft decking at low points, seam splitting on NorthGate sections, and underlayment rot where a 1970s patio-cover overlay ties into the original roof. On a postwar tract home off one of Lomita’s flat-roof blocks, our crew traced a recurring ceiling stain to a NorthGate low-slope section where the membrane had alligatored and split along a seam above an old patio-cover overlay. We stripped the failed section, replaced the underlayment and membrane, and re-flashed the tie-in so the nightly condensation drains instead of ponding. That’s the kind of repair that looks simple but requires understanding exactly how moisture moves on a Lomita roof.
CertainTeed Models & Products We Service in Lomita
We install and repair Landmark architectural shingles, Presidential SolarReflective asphalt shingles, NorthGate and XT25 low-slope asphalt membranes, and CertainTeed low-slope and tile underlayment systems. Our parts approach is straightforward: we favor CertainTeed-branded membranes and underlayments where they match your existing system for a true like-for-like repair. When a full CertainTeed shingle field isn’t feasible on a tight Lomita lot, we use quality matching architectural shingles. We’re honest about when a patch buys a few years versus when a low-slope section has gone past patching. That’s the job: telling you what your roof actually needs, not what’s easiest to sell.
See the difference
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AfterCertainTeed Service Pricing in Lomita
Most CertainTeed repairs in Lomita fall into predictable ranges. Flat roof patches on NorthGate or XT25 membranes typically run $450 to $900, depending on the size of the failed section and whether underlayment replacement is required. Leak repairs at valleys, vent boots, or tie-ins generally run $350 to $750. Tile underlayment replacement is the bigger job, often $2,800 to $6,000 for a typical Lomita Spanish-style home, because the tile must be removed, the deck repaired, and new underlayment installed before the tile goes back. Every estimate includes a written line-item breakdown, and we pull permits and pass inspections on every replacement. Call (855) 382-0485 for an exact quote, estimates are free.
Serving Lomita, CA — Our Local Coverage Area
We’re based in the Lomita area and know this community well, including work on CertainTeed in West Carson nearby. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – CertainTeed Roofing in Lomita
Nightly condensation is the culprit. Lomita’s marine layer keeps flat roof surfaces wet until mid-morning, and that moisture combined with daytime UV cycling dries out the asphalt membrane until it alligators and cracks. Storm damage isn’t required; persistent damp is enough.
It depends on the deck condition underneath. If the north slope’s algae is surface-level and the shingles are still pliable, a targeted repair works. If the underlayment has rotted or the deck is soft from trapped moisture, replacement of that entire slope is the honest call. Call (855) 382-0485 and we’ll tell you which one you have.
If your tile looks intact but you have ceiling stains, the underlayment is almost always the failure point. Tile outlasts underlayment by decades. We inspect the deck from the attic and at eave lines to confirm, then replace the underlayment without disturbing tile that’s still in good shape.
Yes. We stock common Landmark colorways and can order specific lot-matched bundles when needed. For full replacements on tight Lomita lots where staging is limited, we work with the existing color profile and advise on the most practical match.
No. We’re an independent roofing contractor with deep experience installing and repairing CertainTeed products. We are not a factory-authorized dealer or warranty agent for the brand. That independence means we recommend CertainTeed when it fits, and another manufacturer when it doesn’t. Call (855) 382-0485 for a free inspection and an honest recommendation.
Service Areas Near Lomita
Beyond Lomita, we provide CertainTeed sales & service across the surrounding South Bay and Gateway Cities. You’ll find our crews in CertainTeed service in South Gate, CertainTeed service in Willowbrook, Lynwood, and West Carson. Our full coverage area is on the Lomita service area page.
Book Your CertainTeed Service in Lomita Today
If your CertainTeed roof is showing signs of trouble, don’t wait for the next damp morning to make it worse. Call (855) 382-0485 to schedule your free estimate. We inspect first, then you decide. As Noel puts it: if it’s leaking, it’s telling you something. Let’s figure out exactly what.
Written by Noel Carrasco, Owner of Select Roof Repair, serving Lomita, CertainTeed in Carson, and the surrounding South Bay.