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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 Valley Glen, CA | Van Nuys Roofing Co
We provide independent CertainTeed roofing service across Valley Glen, CA, handling everything from shingle replacement on Landmark systems to full tear-offs that uncover the dry-rotted decking these 1950s tract homes are famous for. The one thing that makes our CertainTeed work different here is that we know what hides under the shakes before we even lift them. If you’re weighing repair against replacement on a CertainTeed roof in Valley Glen, call (866) 321-6172 for a straight assessment.
Why Valley Glen Residents Choose Us for CertainTeed Service
We’ve torn off more original wood-shake roofs in Valley Glen than we can count, and what we find underneath usually dictates the whole job. Rick Dominguez, our owner, grew up a few blocks off Sepulveda Boulevard and learned the trade through the construction technology program at Los Angeles Valley College, right here in Valley Glen. That local angle matters because we know the housing stock. These aren’t anonymous suburban boxes. They’re 1940s and 1950s ranch homes with specific framing, specific decking, and specific ways they fail after sixty years of San Fernando Valley sun.
We work with seven major roofing manufacturers: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That breadth means we don’t have an incentive to steer you toward one brand. If a CertainTeed system is the right call for your roof, we’ll say so. If a different material makes more sense for your pitch and exposure, we’ll say that too. Your roof, your material choice.
Styles & brands we work with
Common CertainTeed Roofing Problems We Solve in Valley Glen
- Granule loss and blistering on Landmark and Presidential shingles. South- and west-facing slopes in Valley Glen bake under 100°F+ summer heat, which cooks the asphalt and strips the granules faster than the manufacturer’s standard aging curve. We see shingles that look twenty years old after ten.
- Underlayment failure beneath CertainTeed tile and shake systems. Original tract roofs often have felt underlayment that’s baked brittle by Valley heat. When the winter storms hit, water pushes through the compromised felt straight into the deck.
- Flashing failures at stucco wall transitions. Most Valley Glen ranches are stucco, and the original galvanized step flashing where roof meets wall rusts out after decades. Santa Ana wind-driven rain finds the gap and you get water staining on interior ceilings.
- Wind-lift and edge curl during Santa Ana events. CertainTeed architectural shingles are solid products, but if the original installation skimped on field nails, dry Santa Ana winds will lift edges and curl them back. We repair these slope-by-slope where the rest of the roof is sound.
- Hidden dry-rotted sheathing under original wood shake. This is the big one in Valley Glen. The shakes trap heat and moisture against the decking for decades. We regularly find sheathing so soft you can push a screwdriver through it with one hand.
CertainTeed Service in Valley Glen: What Local Conditions Mean for Your Equipment
Valley Glen‘s roofing market is dominated by post-WWII tract homes in the flat San Fernando Valley basin, where roofs bake under extreme summer heat and must also shed rare but intense winter rain. So every roof here is judged on heat resilience and drainage, not just appearance. What that means for CertainTeed owners specifically is this: the shingle itself is only half the story. The underlayment, the flashing, the decking, and the ventilation all have to work together, and in Valley Glen they’re all aging under the same brutal sun. A CertainTeed Landmark roof installed over compromised decking is a warranty claim waiting to happen. We diagnose the whole assembly, not just what’s visible from the curb.
On a 1956 ranch off Hazeltine Avenue in Valley Glen, we tore off the original wood shake and found the sheathing spongy and dry-rotted under the south slope, exactly the hidden decking problem these tracts are known for. We replaced the compromised decking, re-flashed the stucco wall transition, and installed CertainTeed Landmark architectural shingles with matching ridge and starter, giving the homeowner a roof built for both the Valley heat and the winter storms.
If it doesn’t need replacing, we’re not going to tell you it does. That’s the standard we work to on every Valley Glen job, CertainTeed or not.
CertainTeed Models & Products We Service in Valley Glen
We service and install the full CertainTeed residential line: Landmark architectural shingles, XTONEber porcelain tile roofing, Presidential Shake and Presidential Solaris, and CertainTeed Monogram granule-sided metal shingle systems. For repairs, we use genuine CertainTeed accessories where they extend the life of an existing system. Starter strips, hip-and-ridge, matching underlayment. When the original flashing or decking is beyond saving, we’ll tell you and use quality aftermarket materials instead.
Because we work across seven brands, our installers know the technical installation requirements for each product line. That reduces error risk and keeps manufacturer warranty eligibility intact. We’re an independent CertainTeed service provider, not a manufacturer-authorized shop. That independence is the point. For full CertainTeed sales & service context, see our brand page.
See the difference
Before
After
Before
After
Before
AfterCertainTeed Service Pricing in Valley Glen
What drives the cost of a CertainTeed repair or replacement in Valley Glen is almost always the decking. If we find dry rot under the shakes, the job changes. We write honest line-item estimates so you see exactly what you’re paying for, and the estimate includes the inspection, the material list, and the labor breakdown.
| Service | Typical Cost in Valley Glen |
|---|---|
| Shingle repair (isolated slope, no decking work) | $450 – $950 |
| Flashing repair at stucco wall transition | $350 – $750 per transition |
| Full CertainTeed Landmark re-roof (1200 – 1600 sq ft) | $9,500 – $16,000 |
| Decking replacement (per 4×8 sheet) | $85 – $140 installed |
| Standalone inspection | $250 – $400 |
No change orders. No surprises. Call (866) 321-6172 for a free estimate and we’ll give you the full picture before you commit to anything.
Serving Valley Glen, CA — Our Local Coverage Area
We’re based in the Valley Glen 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 Valley Glen
Yes. Valley Glen summers routinely exceed 100°F, and that sustained heat accelerates granule loss and asphalt aging on any asphalt shingle, including Landmark. South- and west-facing slopes age fastest. We recommend checking those slopes annually. Call (866) 321-6172 for a condition assessment.
Because most homes here were built with original wood shake over plywood or board decking in the 1940s – 1960s. Decades of Valley heat trapped between the shake layer and the deck bakes the wood, and any moisture that gets through the shakes has nowhere to go. The deck dries out and rots from the inside. We find it constantly. Get the deck checked before you commit to a re-roof quote. Call (866) 321-6172 for a free estimate.
Yes. Stucco-to-roof transitions are one of the most common failure points we see in Valley Glen, and we repair them regularly. We pull the old galvanized step flashing, install new flashings, and seal the stucco termination correctly. It’s a routine repair for us.
They can, especially on older installations where field nailing was short or the adhesive strip has lost its grip. Dry Santa Ana winds lift shingle edges and curl them back. We repair these slope-by-slope whenever possible, rather than pushing a whole new roof.
Yes. We install Landmark architectural shingles, XTONEber porcelain tile, Presidential Shake, Presidential Solaris, and the Monogram metal shingle line. Our crew is trained across all seven brands we carry. Call (866) 321-6172 for a free estimate on any CertainTeed system.
Service Areas Near Valley Glen
Our Valley Glen service area covers the 91404 ZIP and surrounding neighborhoods. We also handle CertainTeed work in CertainTeed service in Sherman Oaks, CertainTeed service in Encino, Van Nuys, Studio City, and North Hills.
Book Your CertainTeed Service in Valley Glen Today
Need a straight answer about your CertainTeed roof? Call (866) 321-6172. We’ll inspect, tell you what actually needs doing, and give you a free estimate. Same-week scheduling available for most Valley Glen jobs.
Written by Rick Dominguez, Owner at Van Nuys Roofing Co, serving Valley Glen and the San Fernando Valley.