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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 | Buena Park Roof Repair
We provide independent CertainTeed roofing service across Lomita, including shingle replacement, flashing repair, and tile underlayment replacement. What makes our CertainTeed work different here comes down to exposure: roofs on the south-facing rise near the Palos Verdes border fail years before the sheltered blocks off Lomita Boulevard, and we scope every job around that reality. If your CertainTeed roof is shedding granules or leaking at the valleys, call (866) 282-5070 for a straight assessment.
Why Lomita Residents Choose Us for CertainTeed Service
Rick Dunnigan, our owner, grew up in Buena Park and spent weekends patching ranch-style roofs with his uncle before he ever sat in a classroom. He learned the trade formally through Fullerton College’s building construction program, then spent two-plus decades working roofs across Orange County. When he talks about CertainTeed shingles, he’s not reading off a spec sheet. He’s seen how Landmark architectural shingles behave on a 1962 tract home with salt fog hitting the south slope every afternoon.
We service Lomita’s 90717 homes with the same repair-first mindset we brought to hundreds of South Bay roofs. We carry CertainTeed sales & service knowledge that spans Landmark, Presidential Shake, XTGard underlayment, and Flintlastic SA membrane. We use OEM shingles and underlayments wherever lead times allow. When an aftermarket flashing or vent boot gets a Lomita roof closed faster without sacrificing the system, we say so plainly. That’s the whole job: tell you what the roof actually needs, not what’s easiest to sell.
Styles & brands we work with






Common CertainTeed Roofing Problems We Solve in Lomita
- Granule loss and edge curling on south-facing Landmark shingles. Lomita’s afternoon onshore wind carries salt off the Palos Verdes hill and scours the exposure. Shingles that face that wind shed granules years ahead of the rest of the roof. We replace the affected field rather than the whole roof when the north slope still has life.
- Algae streaking and plywood delamination under Presidential Shake. Presidential Shake’s laminated butt joints hold moisture in Lomita’s morning marine layer. On 1950s and 60s tract decks, that trapped dampness works into the plywood and shows up as streaking long before a leak opens. We pull back the affected courses and check what’s underneath before recommending anything.
- XTGard underlayment lifting at the eaves during Santa Ana winds. Dry fall winds drive heat and negative pressure under low-pitch CertainTeed roofs. XTGard can wrinkle and lift at the eave line, which lets driven rain in during the next winter storm. We refasten and seal the laps, then check the eave metal.
- Flintlastic SA seam separation at valleys and flashing details. Salt air attacks exposed membrane edges on valley and flashing transitions. Once the self-adhered seam weakens, wind-driven rain rides straight through during a winter storm. We strip the failed seam and re-apply Flintlastic SA with proper primer, then re-flash the detail.
- Composition shingle fatigue across a 1950s – 60s tract roof. Many Lomita homes still carry original or first-replacement composition shingles at or past end of life. When about 25% of the shingles are failing, we recommend full replacement rather than patching a roof that will need it again in two years.
CertainTeed Service in Lomita: What Local Conditions Mean for Your Equipment
Roof condition in Lomita 90717 can flip within three blocks. Homes on the south-facing rise by the Palos Verdes border sit in the path of salt-laden fog and afternoon wind that the flatter blocks off Lomita Boulevard never feel. A CertainTeed Landmark roof on that rise can shed enough granules to look fifteen years older than the identical roof three streets down. That’s why we inspect and spec every Lomita roof on its own exposure, not by ZIP code alone. On a 1962 tract home on that rise, we found the original Landmark shingles curled and shedding from salt-fog exposure while the north slope still had years left. We replaced the south field with new Landmark architectural shingles, re-flashed the wind-driven valleys with Flintlastic SA, and upgraded the underlayment to XTGard so the deck stays dry through the winter onshore flow. That’s the kind of block-by-block scoping a generic roofer won’t do.
CertainTeed Models & Products We Service in Lomita
We handle the full residential CertainTeed line: Landmark architectural shingles, Presidential Shake, XTGard synthetic underlayment, and Flintlastic SA self-adhered membrane. On any repair we use CertainTeed OEM shingles and underlayments where they’re available, which keeps the system performing as designed. When an OEM flashing or vent boot has a lead time that would leave a Lomita roof open to the next marine layer, we turn to quality aftermarket parts and tell you we did. We stock common Landmark colors and Flintlastic SA in our service vehicles, so most Lomita repairs start the day you call.
See the difference
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AfterCertainTeed Service Pricing in Lomita
What you pay depends on what the roof actually needs. A small valley repair with Flintlastic SA runs less than replacing a south-facing Landmark field. Here’s how it breaks down across Lomita:
- Shingle replacement (spot repair): $450 – $950 depending on slope and access
- Flashing repair (valley, step, or chimney): $350 – $800 per detail
- Tile underlayment replacement: $8 – $14 per square foot, stripped and re-laid
- Full CertainTeed Landmark replacement: $4.50 – $7.00 per square foot on typical Lomita tract decks
Every estimate is free, written, and line-itemed. We don’t change the price once work starts. Call (866) 282-5070 and we’ll come out, look at the exposure, and give you a number that holds.
Serving Lomita, CA — Our Local Coverage Area
We’re based in the Lomita area and know this community well, from CertainTeed in Torrance to nearby South Bay cities. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – CertainTeed Roofing in Lomita
Your roof’s exposure is the difference. If your house sits on the south-facing rise near the Palos Verdes border, salt-laden fog and afternoon onshore wind hit your shingles for years before they hit the sheltered blocks off Lomita Boulevard. That exposure strips granules and curls edges. Call (866) 282-5070 and we’ll scope your roof on its own exposure, not your neighbor’s.
Usually, yes. If the failed seam is localized and the surrounding membrane still has adhesion, we strip the affected section, re-prime, and re-apply Flintlastic SA with proper lap. When the valley metal underneath is corroded from salt air, we replace that detail too. A whole roof replacement is only warranted when the surrounding shingles are at end of life. Call (866) 282-5070 for a free assessment.
Yes. For tile underlayment replacement we use CertainTeed XTGard wherever it’s available, because the system is designed to work as a unit. If lead time would leave your deck exposed, we’ll tell you before we substitute and explain why. You make the call with all the information.
The morning marine layer keeps roof decks damp later into the day than inland cities, which accelerates plywood delamination on older tract decks that were never vented to modern standards. Presidential Shake’s laminated butt joints trap that moisture, and XTGard on low-pitch roofs can lift at the eaves when Santa Ana winds hit. We factor all of that into our inspection.
No. We are an independent CertainTeed service provider, not authorized, sponsored, or endorsed by CertainTeed. That independence means we can tell you when a repair makes sense instead of pushing you toward a replacement. Call (866) 282-5070 for an honest condition report.
Service Areas Near Lomita
We serve Lomita and the surrounding South Bay and Orange County communities. You’ll find us on roofs in Buena Park, La Palma, La Mirada, Cerritos, East La Mirada, and Cypress. If your CertainTeed roof started failing on the Torrance side and you’re now looking for straight answers, we cover that stretch too. For work north of here, see our CertainTeed service in Arcadia and CertainTeed service in Los Angeles pages. This page covers Lomita service area specifically.
Book Your CertainTeed Service in Lomita Today
Tell me what the roof’s doing, and we’ll tell you exactly what it needs. If you’re seeing granules in the gutter, streaks on the south slope, or damp spots after a winter storm, call (866) 282-5070. Estimates are free, and we’ll give you a straight answer.
Written by Rick Dunnigan, Owner at Buena Park Roof Repair, serving Lomita, CertainTeed in Carson, and surrounding South Bay communities.