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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 Covina, CA | Van Nuys Roofing Co
We provide independent CertainTeed roofing service across Covina, CA, with crews who know exactly how these shingle and tile systems behave in the eastern San Gabriel Valley climate. Homeowners looking for West Covina CertainTeed service will find the same expertise applied there. The one thing that sets our CertainTeed work here apart: we understand that Covina roofs fail from sun and Santa Ana wind, not rain, which means the diagnosis and the fix are different from what a coastal roofer would tell you. Call (866) 321-6172 for a free estimate on repair, replacement, or a straight assessment of what your roof actually needs.
Why Covina Residents Choose Us for CertainTeed Service
We’re an independent CertainTeed specialist, not a manufacturer authorized dealer. That distinction matters. We don’t carry a quota of CertainTeed squares we need to sell, so our recommendation comes from what’s on the roof, not what’s on the truck. Rick Dominguez grew up a few blocks off Sepulveda Boulevard in Van Nuys and spent two decades on Valley rooftops before starting this operation, and he’s brought that same straight talk to Covina. Our crew has torn into hundreds of CertainTeed roofs across the 91722, 91723, and 91724 ZIP codes, so when we say a Landmark field is shot or a clay tile underlayment is baked out, it’s from looking at it, not from a sales script. We inspect first, recommend second. And if a focused repair still has years in it, we’ll tell you that instead of pushing a full replacement.
We work with seven major roofing material brands: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That breadth matters because it means when we recommend CertainTeed for your Covina home, it’s because CertainTeed fits the job. Not because it’s the only brand we know. Your roof, your material choice.
Styles & brands we work with






Common CertainTeed Roofing Problems We Solve in Covina
- Sun-brittle organic-mat shingles on mid-century tract homes. The original CertainTeed XT 25 and SwiftStart shingles on 1950s-70s homes in the 91722 and 91723 tracts get baked hard by inland summer heat. After 30-plus years, the organic mat dries out, the sealing strips lose grip, and tabs start lifting. In CertainTeed sales & service terms, that’s a tear-off and Landmark upgrade, not a patch job.
- Ridge cap and hip shingle blow-off near 91724. Santa Ana gusts hammer the foothill-edge homes in Covina’s upper elevations. The field shingles stay put, but the ridge caps peel back like pages in a book. We re-secure and replace with CertainTeed matched ridge cap and starter so the repair matches the rest of the roof.
- Wind-loosened clay and concrete tile with dead underlayment underneath. Those Spanish-style tile roofs look fine from the ground. The problem is the CertainTeed underlayment beneath them, which the sun dries out over two decades until it no longer sheds water. The tile isn’t failing. The membrane under it is.
- Dry-rotted decking and fascia exposed during re-roofing. Covina’s heat and dry air mean sun degradation, not rain damage. When we pull old shake or shingle off a mid-century home, we regularly find soft sections of sheathing that need replacement before the new CertainTeed system goes down. That’s roof decking replacement, and we handle it in-house.
- Sealing-strip failure on older architectural shingles letting tabs lift in wind events. Even CertainTeed Landmark roofs from the 1990s and early 2000s eventually lose their sealing strip adhesion in Covina’s heat cycling. We see tabs flapping after a windy stretch on homes all over the 91722 and 91723 tracts.
CertainTeed Service in Covina: What Local Conditions Mean for Your Equipment
Covina’s roofing market splits within roughly a mile, and that split defines how we approach Citrus CertainTeed service and our CertainTeed work here. The flat 91722 and 91723 tracts are mid-century composition-shingle and wood-shake roofs where neighbors re-roof in clusters, block-by-block. You’ll see three houses on the same street with new Landmark architectural shingles because the original CertainTeed organic mats all failed within a few years of each other. That’s a sun-baked tear-off job. Drive a few minutes up toward the foothill-edge homes near 91724 and the call changes entirely. Those roofs lose ridge caps and tile to Santa Ana wind uplift while the field shingles stay intact. The same CertainTeed service day in Covina can be a full tear-off on one street and a wind-damage tile repair on the next. A generic roofer treats those as the same job. They aren’t.
On a mid-century ranch in the 91722 tract, our crew tore off original CertainTeed organic shingles that had gone brittle and were lifting at the tabs after decades of inland sun. Underneath, we found dry-rotted sheathing where the old felt had failed years earlier. We replaced the soft decking, re-flashed the valleys, and installed CertainTeed Landmark architectural shingles with matched ridge cap. That was a sun-degradation job, not a leak call. And that’s what most CertainTeed shingle work in Covina actually is.
CertainTeed Models & Products We Service in Covina
We install, repair, and diagnose the full CertainTeed residential line for Covina service area homes: Landmark architectural shingles, Presidential Shake luxury shingles, and the older XT 25 and SwiftStart organic-mat shingles still on thousands of original tract roofs. We also work on CertainTeed clay and concrete tile systems, including the underlayment underneath that most people never think about until water shows up on the ceiling.
On parts, we use CertainTeed-branded shingles and accessories where the match matters: ridge cap, starter, and underlayment that pair with the field product. For flashing and vent boots, we’ll use quality aftermarket where OEM adds nothing but cost. That’s the same approach we take with Owens Corning, GAF, IKO, Atlas, Tamko, and Boral. If it goes on a roof, we know it.
See the difference
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AfterCertainTeed Service Pricing in Covina
CertainTeed roofing costs in Covina vary by scope. A focused repair, like re-securing blown ridge caps or replacing a few wind-lifted shingles, typically runs $350 to $900. A full Landmark tear-off and replacement on a mid-century tract home usually lands between $12,000 and $22,000 depending on square count, decking condition, and whether the old underlayment needs replacing. Clay tile re-bedding and underlayment replacement on a foothill home can run higher, often $18,000 to $35,000, because the tile work is slow and the decking almost always needs attention underneath.
What drives the price in Covina is decking condition. On 1950s-70s homes, dry-rotted sheathing is the rule, not the exception. That’s a line item we’ll show you before work starts, never a surprise after. Call (866) 321-6172 for an exact quote on your roof. Estimates are free.
Serving Covina, CA — Our Local Coverage Area
We’re based in the Covina area and know this community well, and we also offer CertainTeed service in Irwindale. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – CertainTeed Roofing in Covina
That’s wind damage, plain and simple. CertainTeed ridge caps and tile are built to hold up to normal conditions, but sustained Santa Ana gusts on exposed foothill edges regularly peel caps back and loosen tile regardless of brand. The fix is re-securing what’s salvageable and matching new CertainTeed caps and tile where they’re gone. We’ll also check the underlayment while we’re up there, because wind-loosened tile often means the membrane underneath is already baked out. Call (866) 321-6172 for a free assessment before the next wind event.
In most cases, yes. Wood shake roofs in Covina’s mid-century tracts typically have gaps between the decking boards, and after 60-plus years of inland sun, sections are almost always dry-rotted. CertainTeed shingles require solid decking for proper nail-hold and warranty eligibility. We’ll assess the sheathing once the shake comes off and show you exactly what needs replacing before we install. Call (866) 321-6172 and we’ll walk your roof with you.
Yes, significantly better. Landmark shingles use a fiberglass mat rather than the organic paper mat in the old XT 25 and SwiftStart lines, and the fiberglass mat doesn’t break down the same way under Covina’s inland heat. You’re also getting a heavier shingle with better wind resistance, which matters on the foothill-edge homes that catch Santa Ana gusts. The old organic shingles were good products for their era, but the San Gabriel Valley sun is hard on paper mats.
The underlayment. Clay tile itself lasts for decades, but the CertainTeed membrane underneath it doesn’t. After 20 to 30 years of Covina’s dry heat, that underlayment dries out, cracks, and stops shedding water. The tile looks great from the street and still leaks around the chimney and valleys. We lift the tile, replace the underlayment, re-bed and re-point the tile, and leave the roof watertight. Call (866) 321-6172 for an inspection. You don’t have to commit to anything to get a straight answer.
We look at the field shingles first. If the CertainTeed shingles in the field are intact and still have granule coverage and adhesion, we repair what the wind took: ridge caps, hip shingles, a few loose tabs. If the field is reaching the end of its life, meaning widespread sealing-strip failure or granule loss, we’ll tell you honestly that a focused repair is throwing money at a roof that’s ready to go. As Rick puts it, “If it doesn’t need replacing, I’m not going to tell you it does.” We’ll quote both paths and let you decide. Call (866) 321-6172.
Service Areas Near Covina
We run CertainTeed service throughout the eastern San Gabriel Valley and into the San Fernando Valley. Our crews commonly work CertainTeed service in Hawaiian Gardens, CertainTeed service in La Palma, and the surrounding communities of West Covina, Glendora, San Dimas, and Azusa. We also serve our home base in Van Nuys, Valley Glen, Sherman Oaks, Encino, Studio City, and North Hills.
Book Your CertainTeed Service in Covina Today
If your CertainTeed roof in Covina needs attention, or you need CertainTeed in Azusa, call (866) 321-6172 for a free estimate. We’ll come out, assess what’s actually going on up there, and give you a straight answer on repair versus replacement, with no pressure either way.
Written by Rick Dominguez, Owner at Van Nuys Roofing Co, serving Covina and the San Gabriel Valley.