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CertainTeed Roofing in Northridge, CA | Orange County Roofing Co
If you own a home in Northridge with a CertainTeed roof, and you’re seeing stains inside or finding granules in the gutter, here’s the short answer: we provide independent CertainTeed roof repair, tile underlayment replacement, and flashing work across all four Northridge ZIP codes, and the one thing that makes our CertainTeed work different here is that we know exactly what the 1994 earthquake left behind on thousands of these roofs. We’re Orange County Roofing Co, led by Kurt Hensley, and we’ve been repairing and replacing CertainTeed systems in the San Fernando Valley long enough to know that a roof installed before or during the rebuild era often needs a different kind of attention than anyone expects. Call (866) 942-4187 for a free estimate.
Why Northridge Residents Choose Us for CertainTeed Service
We’re not a CertainTeed dealer. We’re an independent roofing company that installs and services CertainTeed products alongside six other major shingle brands – GAF, Owens Corning, IKO, Atlas, Tamko, and Boral. That independence matters when you’re deciding whether to repair or replace. We don’t have a quota to hit on CertainTeed material, so the recommendation you get is based on what your roof actually needs. Kurt Hensley built this company on that principle. He grew up in Orange County watching roofing crews work the tile roofs on hillside homes, and he’s spent two decades on roofs across Southern California, from CertainTeed in Encino to the Valley floor. A roof shouldn’t be a mystery – let’s just look at what you’ve got and go from there.
When we work on a CertainTeed roof in Northridge, we match the actual shingle or tile profile and color rather than slapping on whatever’s cheapest at the supply house. For older Landmark shingle roofs, that means sourcing the correct color lot when we can. For concrete tile installations, it means pulling reclaimed or color-matched tile when a run was discontinued. We also document existing conditions before we touch anything, so you know exactly what we found, what we fixed, and why.
Styles & brands we work with






Common CertainTeed Roofing Problems We Solve in Northridge
CertainTeed makes good roofing material. But material alone doesn’t survive a San Fernando Valley summer followed by winter rain, and it definitely doesn’t survive a rushed post-earthquake repair. Here’s what we see most often on Northridge CertainTeed roofs:
- UV-baked Landmark shingle slopes on south and west exposures. Northridge summers routinely cross 100°F, and the sun beats hardest on the south and west faces of a roof. After 15 or more years, CertainTeed Landmark architectural shingles on those slopes lose granules, the sealant strips dry out, and tabs lift after a dry-season heat cycle. We repair these by replacing the damaged shingles and resealing where the deck is still sound.
- Cracked and shifted concrete tile from the 1994 rebuild. Many Northridge homes got new tile roofs in the two or three years after the earthquake, and a lot of that work was done fast. Mismatched tile profiles, patched underlayment, and tiles that were never properly reattached are common. Water gets through the gaps, and the first real sign is often a ceiling stain in late fall.
- Flashing seams and valley metal opened by thermal movement. Stucco-clad wood-frame homes, which describe much of Northridge’s 1950s through 1970s housing stock, expand and contract as the Valley swings between scorching days and cool rainy winters. Over time, that movement works flashing seams loose and splits valley metal. We re-flash those transitions with the correct gauge metal and proper sealant.
- Hidden quake-era damage that was never addressed. Hairline tile cracks, shifted underlayment, nail-head pops – these don’t announce themselves. They sit under the surface until a heavy winter rain forces water through. If your roof was patched rather than properly re-roofed after 1994, there’s a good chance there’s hidden damage up there right now.
- Granule loss on XT 25 and XT 30 three-tab shingles. Older CertainTeed three-tab roofs in Northridge, especially on homes that never got a full tear-off, show heavy granule starvation. When the tabs start curling and the shingles feel brittle underfoot, patches stop making sense, and we’ll tell you honestly when it’s time to think about replacement.
CertainTeed Service in Northridge: What Local Conditions Mean for Your Roof
Here’s the thing most roofing companies won’t tell you about Northridge specifically. This city’s housing stock clusters around the 1994 earthquake rebuild in a way that no neighboring community shares. Drive through neighborhoods from Northridge Fashion Center over to the CSUN campus, and you’ll see roof after roof that was installed or patched between 1994 and 1997. That period produced thousands of roofs with mismatched replacement tile and hastily relayed underlayment. What that means for you as a CertainTeed homeowner is this: the quake-era repair, not the original roof, is usually the source of today’s leak. We look for that first. When we scope a CertainTeed tile roof in Northridge, we’re not asking how old the roof is. We’re asking what was done to it in the years right after the quake, and whether anyone ever went back to check the underlayment under the replacement tile.
On a 1960s stucco ranch home near the Northridge Recreation Center, we were called for a ceiling stain after the first winter rain. What we found was a quake-era patch where several concrete tiles had been swapped for mismatched ones over hastily relayed underlayment that had since cooked and shifted. Our crew lifted the tile across that slope, replaced the underlayment with a proper CertainTeed system, reset and color-matched the tile, and re-flashed the valley where the seam had opened. That roof didn’t need a full tear-off. It needed someone to look at what the quake repair left behind.
CertainTeed Models & Products We Service in Northridge
We service the full CertainTeed residential roofing line. That includes Landmark architectural shingles, XT 25 and XT 30 three-tab shingles, and Presidential Shake and Presidential TL, which we see on a lot of higher-end Northridge homes built in the 1970s. We also repair and maintain CertainTeed concrete and clay tile systems, from flat profiles to low-profile and barrel tile.
On parts, our position is simple: we match the actual CertainTeed profile and color rather than substituting a cheap generic equivalent. Where a discontinued run was used, we pull reclaimed or color-matched tile from local salvage suppliers. We stock common CertainTeed Landmark color lots and keep the flashing material we need on the truck, which means we’re not making multiple trips to the supply house for a routine Northridge repair. If the deck or underlayment is sound, a targeted repair beats a full tear-off. If it’s baked out or quake-era patched, we’ll tell you plainly that a patch won’t hold, and we’ll show you why.
See the difference
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AfterCertainTeed Service Pricing in Northridge
What you’ll pay for CertainTeed roofing service in Northridge depends on the scope, not on any mystery markup. A small flashing repair or a few lifted tabs on a Landmark roof is a different job from a full tile underlayment replacement on a 1,800-square-foot ranch. If we’re replacing quake-era underlayment under existing CertainTeed tile, you’re paying for the tile removal and reset, new underlayment, and re-flashing of whatever transitions were disturbed. We always provide a written line-item quote before any work starts, and we never change the price once you’ve approved it. The free estimate includes us getting on the roof, documenting conditions, and walking you through exactly what we found. Call (866) 942-4187 to schedule yours.
Serving Northridge, CA — Our Local Coverage Area
We’re based in the Northridge area and know this community well, and we also provide CertainTeed service in Van Nuys. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – CertainTeed Roofing in Northridge
The most common reason is that the quake-era repair was done quickly, often with mismatched tile or underlayment that was never properly sealed. Hairline cracks and shifted underlayment from that period can sit for years before a heavy winter rain pushes water through. We find the leak by lifting tile and checking what’s underneath, not just by looking at the surface. Call (866) 942-4187 and we’ll track it down.
Yes. We match the actual CertainTeed tile profile and color, and when a run was discontinued, we pull reclaimed or color-matched tile from local salvage sources. We don’t substitute a cheap generic tile that looks almost right but not quite. The goal is a repair that disappears into the existing roof.
Northridge heat bakes the granules off the shingles on south and west exposures, dries out sealant strips, and leaves tabs lifting after a hot dry season. Thermal movement also works flashing seams loose. This happens faster here than in coastal cities or even nearby CertainTeed in Valley Glen, which is why regular inspection catches problems before they leak.
A full tear-off isn’t always needed. Tile underlayment replacement is a standard service we perform in Northridge, and it’s the right call when the tile itself is still in good shape but the underlayment underneath has failed from age, quake-era patching, or both. We’ll tell you which one your roof needs, and we’ll show you the evidence.
We remove the old flashing, inspect the area behind it, replace it with the correct gauge metal, seal the seam properly, and reset whatever surrounds it. The fix holds because we account for the thermal movement that opened it in the first place. If you’re seeing gaps at flashing points, call (866) 942-4187 – a free estimate gets you a clear answer.
Service Areas Near Northridge
In addition to Northridge itself, our CertainTeed service extends across the San Fernando Valley and nearby communities. We also serve CertainTeed service in Topanga through the canyon and CertainTeed service in Desert Hot Springs for homes in the high desert. Our team covers the full Northridge service area, including 91330, 91324, 91325, and 91327.
Book Your CertainTeed Service in Northridge Today
If your CertainTeed roof is showing signs of trouble, don’t wait for the next winter rain to find out for you. Call (866) 942-4187, and we’ll schedule a free estimate. We’ll get on the roof, document what’s there, and explain what needs doing – no quota to hit, no brand to push. Just a straight answer from someone who knows Northridge roofs.
Written by Kurt Hensley, Owner at Orange County Roofing Co. We provide independent CertainTeed sales & service across Northridge and the San Fernando Valley.