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CertainTeed Roofing in Van Nuys, CA | Marquis Roof Repair
Marquis Roof Repair provides independent CertainTeed roofing service across Van Nuys, from full tear-offs on 1950s tract homes to targeted repairs on Landmark shingle roofs. What makes our CertainTeed work different here is simple: we know how these products behave on the shallow-pitch, hot-mop-era roofs that dominate this part of the San Fernando Valley. If you’re looking for someone who understands both the product line and the local housing stock, call us at (866) 705-2978. We work with CertainTeed because it’s one of the strongest manufacturers in the business, but we’re not affiliated with them – which means our recommendations come from what your Van Nuys roof actually needs, not from a corporate script.
Since we install and service six other major manufacturers alongside CertainTeed sales & service, we have no reason to push a product that isn’t right for your roof. Our knowledge of CertainTeed Landmark, Presidential Shake, Flintlastic SA, and DiamondDeck runs deep because we’ve installed and repaired them across Van Nuys for years. You get straightforward guidance from people who work on these roofs every week.
Why Van Nuys Residents Choose Us for CertainTeed Service
CertainTeed shingles and membranes are common on Van Nuys roofs, but not every roofing crew knows how to diagnose them properly. We’ve spent years working on Landmark shingle failures and Flintlastic SA membrane issues specific to Valley conditions. Ron Thibodeau, our owner, studied building construction technology at Los Angeles Valley College in Valley Glen and has been doing roofing work across the San Fernando Valley for more than two decades. That background means we approach every CertainTeed roof in Van Nuys with a diagnostic mindset: find the actual source of the problem, then determine whether a repair or replacement makes sense.
Our Van Nuys service area coverage means we can get to your property quickly when you’ve spotted a leak or missing shingles. We use genuine CertainTeed accessories and membranes when they match the existing system. When they don’t, we’ll tell you plainly and recommend a compatible alternative that gets the job done without compromising the roof. The goal is a watertight roof, not a parts invoice. We investigate before we recommend.
Styles & brands we work with
Common CertainTeed Roofing Problems We Solve in Van Nuys
CertainTeed products are well-built, but Van Nuys conditions test every roof system. Here’s what we see most often on local CertainTeed installations:
- Granule loss and brittle cracking on Landmark shingles. Many 1950s and 1960s tract homes in Van Nuys were built with roof decks that weren’t designed for the 100°F+ summers we get now. The heat cycling causes CertainTeed Landmark architectural shingles to shed granules and crack earlier than they would on a properly ventilated modern deck. The roof isn’t failing – the deck underneath it wasn’t built for this climate.
- Lap seam failures on Flintlastic SA membranes. Low-slope roofs throughout Van Nuys collect ponding water after winter rains. When Flintlastic SA self-adhered membrane was installed over an uneven hot-mop substrate, those lap seams can open up and let water through. We see this constantly on older bungalow courts and flat-roof additions.
- Cracked hip and ridge caps on Presidential Shake. Van Nuys gets intense UV that degrades the sealant on steep sections of Presidential Shake luxury shingles. During Santa Ana wind events, those compromised hip and ridge caps lift and tear. One windstorm can turn a small repair into a full ridge replacement.
- Wrinkled or torn DiamondDeck underlayment. DiamondDeck needs proper acclimation before installation. In Van Nuys’ dry heat, installers who rush the process end up with underlayment that wrinkles or tears, which undermines the secondary water barrier. We’ve torn off more than one roof where the shingles were fine but the underlayment underneath had failed.
- Flashings that degrade fast at wall intersections. Sealants and flashing materials on Van Nuys roofs age quickly in the summer sun. We regularly find failed flashing at the point where a roof ties into a stucco wall, especially on small apartment buildings and additions from the 1970s and 1980s.
CertainTeed Service in Van Nuys: What Local Conditions Mean for Your Roof
The shallow-pitch roofs across Van Nuys ZIP codes like 91401 and 91405 were built for hot-mop asphalt. Here’s what that means if you own one of these homes: when the roof fails, you often can’t simply nail down standard architectural shingles and call it done. The pitch is too low. Standard shingle manufacturers won’t warrant their product on a roof below 2:12 pitch, and CertainTeed is no exception. So the conversation about “which CertainTeed product should I use” starts with a question about your actual roof geometry.
This is a Van Nuys-specific wrinkle that doesn’t apply the same way in, say, Sherman Oaks with its mix of hillside and flat lots, or in Valley Glen where we also handle CertainTeed repair in Encino and nearby areas. On a 1954 tract house near Van Nuys Boulevard and Sylvan Street, the steeper front section might take Landmark architectural shingles beautifully, while the low-slope rear addition needs Flintlastic SA self-adhered membrane or a build-up system. That’s not a compromise. It’s the correct roof for each section. Our crew recently replaced a failing hot-mop roof on just such a 1955 house in 91401. We tore off brittle, ponding asphalt down to the deck, installed CertainTeed Flintlastic SA on the shallow rear section, laid Landmark architectural shingles on the steeper front, and replaced flashing at the wall intersections. That roof is now ready for the next decade of Van Nuys winters and summers.
CertainTeed Models & Products We Service in Van Nuys
We install and repair the full core CertainTeed residential lineup. Landmark architectural shingles are our most common install on Van Nuys homes – they’re a solid value for the steep and moderate-pitch sections of tract houses. Presidential Shake goes on when a homeowner wants a higher-profile, luxury look, though we’ll always talk through what the Van Nuys sun does to those ridge caps over time. For low-slope and flat sections, Flintlastic SA self-adhered modified bitumen is our go-to CertainTeed membrane. We use DiamondDeck underlayment when the project calls for it and the substrate supports it.
On repairs, we use genuine CertainTeed accessories and membranes that match the existing system. When a product is discontinued or the OEM part costs more than makes sense on a roof nearing end-of-life, we’ll offer a compatible quality aftermarket component and explain exactly why. You’ll never get an upsell disguised as a parts recommendation.
See the difference
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AfterCertainTeed Service Pricing in Van Nuys
CertainTeed work in Van Nuys falls into predictable ranges depending on roof size, pitch, and the product you choose. A targeted repair on a Landmark shingle roof – replacing a section of damaged shingles and flashing – typically runs between $450 and $1,100 on a Van Nuys tract home. Full replacement with Landmark architectural shingles on a standard single-story mid-century home generally lands between $11,000 and $19,000, depending on square footage and whether we’re tearing off one layer or two. Flintlastic SA membrane work on a low-slope addition runs $9 to $14 per square foot installed. If underlayment needs replacing before shingles go down, that adds $1.50 to $3.00 per square foot for DiamondDeck or an equivalent.
What drives the cost in Van Nuys specifically is tear-off disposal, deck repairs on older homes, and the occasional need to update ventilation. Every estimate we give includes a written breakdown of what’s needed and what it costs. Call (866) 705-2978 to schedule a free estimate – no obligation, just an honest look at your roof.
Serving Van Nuys, CA — Our Local Coverage Area
We’re based in the Van Nuys 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 Van Nuys
It depends on the actual pitch. Landmark shingles are engineered for roofs at 2:12 pitch or steeper. If your low-slope section measures below that, we won’t install them there, because the manufacturer won’t warrant them and they’ll leak. For those shallow sections, we recommend CertainTeed Flintlastic SA self-adhered membrane instead. Call (866) 705-2978 and we’ll measure your roof and tell you exactly what will work.
Van Nuys heat bakes the sealant on Presidential Shake hip and ridge caps, which causes cracks and wind uplift during Santa Ana events. The shingles themselves are durable, but the sealant is the vulnerable point. We routinely reinforce or replace ridge caps on Presidential Shake roofs that have been through a few Valley summers. Call us for a ridge inspection before the next wind season.
On a well-prepared deck with proper drainage, Flintlastic SA can last 15 to 20 years in Van Nuys. The catch is ponding water. If water sits on the membrane after rains, lap seams start to fail within 10 to 12 years. Drainage correction at install time is the biggest factor. We can evaluate your low-slope section and tell you how your current membrane is holding up – estimates are free.
No. DiamondDeck is a quality product, but it’s not the right underlayment for every Van Nuys roof. We use it when the roof deck and ventilation support it, and when the project benefits from a premium secondary barrier. On some older tract homes with marginal deck surfaces, a different underlayment may be more appropriate. We’ll discuss the options without pushing one product over another.
Often, yes. If the leak is localized – a damaged flashing, a cracked shingle, a failed lap seam – we can repair it without tearing off the whole roof. We’ll always give you an honest repair-vs-replace assessment, because on Van Nuys tract homes that are 60-plus years old, a patch sometimes only buys a season or two before you’ll need a full tear-off anyway. Call (866) 705-2978 and we’ll inspect the leak and tell you what’s truly going on.
Service Areas Near Van Nuys
Beyond Van Nuys, we serve homeowners throughout the surrounding San Fernando Valley. You’ll find us in CertainTeed service in Valley Glen, CertainTeed service in Sherman Oaks, plus Burbank, North Hollywood, Studio City, and Universal City. Wherever you are in this part of the Valley, the same crew and the same standard applies.
Book Your CertainTeed Service in Van Nuys Today
If your CertainTeed roof is leaking, shedding granules, or simply aging out, we’ll take a look and give you a straight answer. Call (866) 705-2978 to schedule your free estimate. A roof done right the first time is the only version worth doing.
Written by Ron Thibodeau, Owner at Marquis Roof Repair, serving Van Nuys and the San Fernando Valley.