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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 Lennox, CA | Seacrest Roofing
We provide independent CertainTeed roofing service across Lennox, from Landmark architectural shingle repairs on 1940s stucco homes to Flintlastic SA cap-sheet patches on tight fourplex flat roofs. What makes our CertainTeed work different here is simple: we diagnose the actual failure on your roof first, then match the repair or replacement to the right CertainTeed system, not the other way around. Most Lennox calls come to us after the first heavy rain, when a seam has already opened and water is inside. Call (855) 597-2817 for a free estimate.
We’ve installed and repaired CertainTeed shingle, low-slope, and metal systems across the compact, low-slung stock that defines this unincorporated LA County island. Our crews know these roofs because Lennox keeps us honest: tight side yards, shared parapets, and landlord-driven maintenance schedules mean a CertainTeed system here has to work under conditions a product brochure never shows. And we’re upfront about one thing: we’re not authorized, sponsored, or warranty-endorsed by CertainTeed. We carry their full lineup because it’s good roofing, and we service it the way it was engineered to be serviced. For broader CertainTeed sales & service coverage, this page gives you the full picture of how we work with the brand.
Why Lennox Residents Choose Us for CertainTeed Service
Noel Chambers, our owner, came up through the construction technology program at Cerritos College before he ever ran a crew, and he’s spent the years since learning what Southern California sun and a clogged scupper do to a roof that was installed ten years before anyone thought about attic ventilation. He’s the one who reminds us that a fourplex on Lennox Boulevard with a failed cap-sheet seam isn’t a marketing opportunity, it’s someone’s tenants with water in a closet. That’s the lens we bring to every CertainTeed job in Lennox.
We use genuine CertainTeed accessories on every repair: matching shingle bundles, Flintlastic membranes, manufacturer-specified fasteners and underlayments. We don’t substitute off-brand cap sheet on a CertainTeed low-slope assembly, because the system only stays coherent if the parts match. And we repair when repair is right. A failed flashing or a few cracked shingles doesn’t mean the roof is done, and on a Lennox rental, a patch that buys years is often the honest answer. When replacement is genuinely needed, we’ll show you the CertainTeed options across every budget tier and let you choose. That’s the benefit of working with a contractor who stocks seven shingle brands, including Lennox service area coverage for full re-roofs and inspections.
Styles & brands we work with
Common CertainTeed Roofing Problems We Solve in Lennox
- Granule loss and algae streaking on Landmark shingles. Lennox homes built in the 1940s through early 1960s rarely got upgraded attic ventilation. The result is heat and moisture working on the shingle from below while sun beats it from above. Granules shed, algae takes hold, and the shingle ages faster than its warranty suggests it should. We see this constantly on the stucco single-story homes north of Lennox Boulevard.
- Failed Flintlastic SA cap-sheet seams on flat rental roofs. The shared parapet on a Lennox fourplex collects ponding water after winter rain, and if the original lap wasn’t primed correctly, that water works under the seam until it opens. One seam failure shows up in two or three units at once, which is exactly why these calls come in as emergencies, not scheduled maintenance.
- Cracked and curled shingles at valley and sidewall flashing transitions. Tightly spaced Lennox homes mean roofs get walked on by maintenance crews, utility workers, and neighbors. Flashing gets sun-cooked and stepped on, and the CertainTeed shingles at those transitions fail before the field shingles do. It’s a localized failure, usually repairable without touching the rest of the slope.
- Chalking and faded CertainTeed metal panels with hardened fastener grommets. On existing light-gauge metal and metal-shingle roofs, the factory coating breaks down under direct sun, and the rubber grommets under fasteners dry out and crack. A sprinkler overspray, common in Lennox’s tight yards, finds those fastener holes first. The leak looks like a panel problem, but it’s almost always the fasteners.
- Ponding on low-slope roofs from clogged drains. Lennox flat roofs drain through scuppers and roof drains that clog with debris off overhanging trees and wind-blown litter. Standing water accelerates membrane degradation and finds every seam weakness. We clear the drains and repair the seam, but the real fix is recutting the slope or adding a tapered system when the ponding is chronic.
CertainTeed Service in Lennox: What Local Conditions Mean for Your Equipment
Lennox’s flat and low-slope rental roofs are packed shoulder-to-shoulder on shared property lines, so a single clogged drain or failed flashing can dump water into several units. Most CertainTeed low-slope calls here come in as reactive after-the-first-rain patches, not planned replacements. That’s not a knock on the landlords; it’s the reality of an unincorporated LA County island where nearly all housing is low-slung rental apartments and modest single-family homes, and where a roof failure is measured in tenant complaints, not curb appeal. Every re-roof in Lennox goes through LA County Building & Safety permits, not a city building department, and that county path adds a layer of inspection and wait time that landlords on tight turnover schedules have to plan around. It’s one of the reasons we emphasize repair-first diagnostics here: if a Flintlastic SA seam can be re-lapped and a drain cleared in an afternoon, that’s often the difference between keeping a unit rented and losing two weeks of rent waiting on a full re-roof permit. The roof doesn’t care what it looks like on the brochure; it cares about installation.
CertainTeed Models & Products We Service in Lennox
We service the full CertainTeed residential lineup that fits Lennox’s housing stock. On the shingle side, that’s Landmark, Landmark Pro, and Landmark Luxury architectural shingles, plus XT 30 and Highland Slate designer lines for owners who want a higher profile on a visible street. On flat and low-slope roofs, we work with Flintlastic SA cap sheets and Revolution XL single-ply membranes, the two systems that dominate Lennox’s multifamily stock. We also service Presidential SolarReflective on the occasional larger single-family or light commercial roof, and CertainTeed’s factory-coated metal panels where they’re already installed.
On repairs, we use genuine CertainTeed accessories: matching shingle bundles, Flintlastic membranes, and manufacturer-specified fasteners and underlayments. If your roof is a CertainTeed system, the patch stays a CertainTeed system. We carry common Landmark colors and Flintlastic SA materials locally for fast turnaround on Lennox calls, and we order specialty items like Highland Slate bundles or specific metal panel profiles direct when a roof needs a match. You’ll know what’s in stock and what’s on order before we start.
See the difference
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AfterCertainTeed Service Pricing in Lennox
CertainTeed service pricing in Lennox varies by what failed and how far it spread. A localized flashing repair or a few shingle replacements typically runs $350 to $800, including labor and genuine CertainTeed materials. A Flintlastic SA seam re-lap with drain clearing on a flat fourplex runs $800 to $1,800, depending on how many seams were affected and whether we’re cutting out failed membrane or just re-priming and patching. Full CertainTeed re-roofs on a Lennox single-family home with Landmark architectural shingles generally land between $8,000 and $16,000, while a complete Flintlastic low-slope system on a small multifamily building runs $12,000 to $22,000, depending on whether the decking is sound and what the existing insulation situation looks like. Every estimate is written and line-itemed, and we don’t change the number once work starts unless you change the scope. Call (855) 597-2817 for your free estimate.
Serving Lennox, CA — Our Local Coverage Area
We’re based in the Lennox area and know this community well, and we also provide CertainTeed service in Del Aire, Hawthorne, Inglewood, and El Segundo. Use the map below to see our full service coverage — if you’re nearby, we can almost certainly help.
FAQs – CertainTeed Roofing in Lennox
It’s almost always one leak. On a Lennox flat roof with a shared parapet, water ponds at the seam, works under an unprimed lap, and then travels along the deck or a joist until it finds two separate ceiling penetrations in different units. We trace the water path from the roof down, find the single failed seam, and repair that. You don’t need two repairs; you need one accurate diagnosis. Call (855) 597-2817 and we’ll trace it before quoting anything.
We can match Landmark shingles on a partial repair as long as the rest of the field is in serviceable condition. CertainTeed’s production runs are consistent enough that the current batch will blend acceptably on a slope that’s had normal sun exposure, and we order matching bundles by the lot code off the existing shingle wrapper when it’s still legible. If the field is granule-bare and brittle, a patch becomes a temporary measure, and we’ll tell you that before cutting anything. The repair-only route usually makes sense on Lennox rentals where the rest of the roof has years left.
Because the attic was never ventilated to current standards. A 1950s Lennox stucco house typically has gable vents or a couple of small soffit vents and nothing else, so heat and moisture build up under the deck and cook the shingle from below while the sun bakes it from above. Granule loss and algae streaking on Landmark shingles here is almost always a ventilation problem manifesting on the roof surface. The fix can be as simple as adding ridge or box vents, but it’s a roof-level repair, not a shingle swap.
Yes. CertainTeed metal panels chalk and fade as the factory coating breaks down, and the fastener grommets harden and crack, so a metal roof needs fastener inspections and occasional replacement to stay watertight. Tile systems have battens and underlayment that wear out before the tile itself, and the underlayment failure is invisible from the ground. On a Lennox rental, we recommend an annual or post-rain inspection on metal and tile, while asphalt and low-slope systems can usually go two years between professional checks. Call (855) 597-2817 to schedule an inspection at whatever interval fits your building.
Yes, a full re-roof in Lennox requires LA County Building & Safety permits, and we handle the permit application, the inspections, and the sign-off. Lennox is an unincorporated county island, so the permitting path goes through the County, not a city building department, which adds a review step and an inspection scheduling layer. We build that time into the project schedule so you’re not surprised. For repairs and patches confined to flashing, seams, or isolated shingles, permits typically aren’t required, but we’ll confirm the scope with the County before we tell you that for certain.
Service Areas Near Lennox
Our CertainTeed crews serve Lennox and the surrounding communities, including CertainTeed service in Koreatown for multifamily low-slope work, CertainTeed service in San Marino for architectural shingle and tile systems, plus the nearby areas of Los Alamitos, Hacienda Heights, and Cypress. If you’re a property owner with buildings in more than one of these areas, we can coordinate inspections and maintenance schedules across your portfolio from a single point of contact.
Book Your CertainTeed Service in Lennox Today
If you’ve got a leak, a seam that’s opened, or an inspection you’ve been putting off, call (855) 597-2817. We’ll send a crew to Lennox, diagnose what’s actually happening on your roof, and give you a written line-item estimate. Free, no commitment. Call now and get on the schedule before the next rain finds the weak spot on your roof.
Written by Noel Chambers, Owner at Seacrest Roofing, serving Lennox and surrounding areas.