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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 Sherman Oaks, CA | Hollywood Roofing Co
We provide independent CertainTeed roof repair and replacement across Sherman Oaks, from the tree-canopied flats of 91403 to the hillside fire-zone lots south of Ventura Blvd. What separates our CertainTeed work here is straightforward: we’ve spent years watching how these shingle and tile systems actually age under Sherman Oaks sun, oak litter, and storm-driven water, and we repair them accordingly. Call (833) 589-7971 for a free estimate on any CertainTeed roof issue, from a single lifted tab to a full Class A re-roof.
Why Sherman Oaks Residents Choose Us for CertainTeed Service
We know CertainTeed product lines the way a mechanic knows a specific engine family. Landmark, Presidential Shake, XT three-tabs, DiamondDeck underlayment under tile: each behaves differently when the San Fernando Valley puts it through five straight months of UV and then hits it with an atmospheric river. Roland Vega, our owner, learned roofing at LA Trade-Tech and has spent the better part of three decades working roofs from the Hollywood Hills into the Valley, so when he tells a Sherman Oaks homeowner their Landmark roof has three to five years left, that number comes from experience, not a sales script. If you need CertainTeed service in Studio City, we cover that area too.
We’re an independent CertainTeed service provider, which means our recommendation is driven by what your roof actually needs. We install six other major brands too, so if a CertainTeed repair is the right call, we’ll say so. If it’s not, we’ll tell you that as well. That’s the point of working with a company that isn’t tethered to one manufacturer: you get an honest read, not a brand pitch. For broader coverage details, see our CertainTeed sales & service page.
Styles & brands we work with






Common CertainTeed Roofing Problems We Solve in Sherman Oaks
- Seal strip failure on Landmark and Presidential Shake shingles. The adhesive strips that bond shingle tabs can fail when installed in cool, dusty conditions, or degrade after years of heat cycling. On Sherman Oaks hillside homes where wind whips up the canyons, lifted tabs on ridge and hip runs become the first point of water entry. We re-secure or replace affected shingles with matching CertainTeed product so the repair blends in.
- UV-driven granule loss on south- and west-facing slopes. The Valley’s summer UV is relentless, and CertainTeed asphalt shingles on those exposures shed granules faster than shaded slopes. Once the asphalt substrate starts showing, the shingle is on borrowed time. We assess how much life the field has left and repair or replace accordingly, rather than selling a patch that will fail in two seasons.
- Three-tab XT shingles cracking on low-slope decks. The 1940s-to-1960s ranch homes in 91403 and 91423 often have nearly flat roof sections where water doesn’t move off fast enough. When leaf litter from mature oaks clogs scuppers, water backs up under three-tab shingles and flexes them until they crack. We clear the drainage path, repair the decking if needed, and tie in new shingles.
- Underlayment failure beneath tile on hillside homes. CertainTeed tile underlayment systems like DiamondDeck or RoofRunner take the actual waterproofing load under the tile. On hillside lots south of Ventura Blvd, heat gain and ember exposure stress the underlayment before the tile itself shows any visible wear. We replace failed underlayment and reset the tile, often without buying a single new tile if the field is sound.
- Storm-driven leaks after atmospheric-river events. Every winter, the same pattern repeats: a big rain hits right when tree litter has accumulated, and water finds its way under shingles or behind flashing. The fix is rarely just caulk. We trace the actual water path, which on flat Sherman Oaks roofs usually means the drain or scupper, not the shingle field.
CertainTeed Service in Sherman Oaks: What Local Conditions Mean for Your Equipment
Sherman Oaks splits into two distinct roof environments, and the work we do on a CertainTeed roof in each looks nothing alike. In the flats of 91403 and 91423, post-war ranch homes sit under dense Valley oak and eucalyptus canopy, which means the roof spends most of its life shaded but gets loaded with leaves, bark, and debris that clog drains and hold moisture against the decking. A CertainTeed Landmark roof in that environment doesn’t fail from sun first. It fails from water that can’t get off the roof. The scuppers fill, water backs up, and low-slope sections start ponding. Over time, that standing water works under shingles and rots the decking beneath, and by the time the homeowner sees a ceiling stain, the damage is already structural.
South of Ventura Blvd, the story is fire code. Those hillside lots fall inside LA’s Very High Fire Hazard Severity Zone, which means a CertainTeed re-roof there isn’t just new shingles over old felt. It has to be built as a Class A assembly with ember-resistant edge detailing, specific underlayment layers, and vents that won’t let a wind-blown ember into the attic. We’ve done enough of these hillside replacements to know what the inspector will check and what the roof has to carry beyond the shingle itself. For homeowners across our broader service footprint, visit our Sherman Oaks service area page.
CertainTeed Models & Products We Service in Sherman Oaks
We work on the full CertainTeed asphalt shingle and tile underlayment lineup: Landmark architectural shingles, XT 25 and XT 30 three-tabs, Presidential Shake luxury shingles, and tile underlayment systems including DiamondDeck and RoofRunner. For shingle replacement on a roof still within its original line, we use genuine CertainTeed product so color and profile stay consistent and your warranty documentation isn’t compromised. For underlayment and flashing, we use quality aftermarket materials where they perform equal to or better than the original spec. For older roofs where the line has been discontinued, we’ll match as closely as the current CertainTeed catalog allows and tell you honestly if a full replacement makes more sense than chasing a color match.
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AfterCertainTeed Service Pricing in Sherman Oaks
CertainTeed shingle repair in Sherman Oaks typically runs between $350 and $900 depending on access, slope, and how much decking needs to come out. Tile underlayment replacement usually lands between $1,800 and $4,500 on a typical hillside section. A full CertainTeed Landmark re-roof on a 1,500-square-foot Sherman Oaks home generally ranges from $12,000 to $19,000 with tear-off. What drives the number most is the decking condition underneath, which we won’t know until we see it. Your free estimate includes a written line-item quote, not a ballpark. Call (833) 589-7971 to schedule yours.
Serving Sherman Oaks, CA — Our Local Coverage Area
We’re based in the Sherman Oaks area and know this community well, and we also offer CertainTeed service in Valley Glen. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – CertainTeed Roofing in Sherman Oaks
Yes. Hillside lots south of Ventura Blvd fall inside LA’s Very High Fire Hazard Severity Zone, so a CertainTeed roof there must be built as a Class A assembly, which means fire-rated underlayment, ember-resistant vents, and specific edge detailing, not just new shingles over old felt. We’ve done enough of these to know what the city inspector checks for. Call (833) 589-7971 and we’ll walk your property and tell you exactly what your roof would need.
Granule loss on flat-roof Sherman Oaks homes is usually the combination of two things: the low slope means water moves slowly and sits longer on the shingle surface, and the mature oak canopy drops organic material that retains moisture against the granule layer. Add Valley UV on the sections that do get sun, and the shingles degrade faster than they would on a steeper, cleaner roof. We’ll assess whether you have a repair situation or a replacement one, no pressure. Call (833) 589-7971 for an estimate.
In most cases, yes. Tile roofs fail from the underlayment up, not the tile down. We lift the tile carefully, remove the old felt or synthetic, install new underlayment and battens, and reset the same tile. If a tile breaks during the lift, we have matching replacements. The tile itself nearly always goes back on unless it’s structurally cracked. For an exact quote on your roof, call (833) 589-7971.
On Sherman Oaks flat-roof homes, it’s usually a drain problem first. Leaf-clogged scuppers and downspouts back water up under the shingle field, and the leak that shows in your ceiling started at the drain. We clear the drainage path, trace the actual water entry point, and repair only what failed. Sometimes that’s a few shingles. Sometimes it’s decking. We won’t know until we open it up. Call (833) 589-7971 and get an estimate before the next storm.
No. We’re an independent CertainTeed service provider. We install and repair CertainTeed products because we know them well and they’re a strong material, but we’re not authorized, sponsored, or warranty-backed by CertainTeed. We carry six other major brands too, which means our recommendation is based on your roof, not a manufacturer contract.
Service Areas Near Sherman Oaks
We run CertainTeed service into the neighborhoods around Sherman Oaks, too. Studio City and Universal City are within a few miles, Glendale and Beverly Hills are a short drive, and Echo Park and Silver Lake round out the east side coverage. If your CertainTeed roof sits in any of these areas, we’ll get out to look. For related coverage, see CertainTeed service in Boyle Heights and CertainTeed service in Van Nuys.
Book Your CertainTeed Service in Sherman Oaks Today
If your CertainTeed roof is leaking, shedding granules, or you’re planning a hillside re-roof that has to pass fire-zone inspection, or you need CertainTeed repair in Encino, call (833) 589-7971. We’ll schedule a free estimate at a time that works for you. The quote is written, itemized, and good for 30 days. No pressure, no gimmicks. Just an honest read on what your roof needs and what it will cost.
Written by Roland Vega, Owner at Hollywood Roofing Co, serving Sherman Oaks and the San Fernando Valley.