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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
GAF Roofing in North Hollywood, CA | Van Nuys Roofing Co
We provide independent GAF roofing service across North Hollywood, from full Timberline tear-offs to flashing repair on older bungalows, and the one thing that separates our GAF work here is what we find under the shingles: this neighborhood’s 1940s and 1950s homes were often re-roofed over the original wood shake rather than torn off, so we’re regularly the second or third crew to open up a roof that’s been hiding rot for decades. We know GAF products, but more importantly, we know what’s underneath them in North Hollywood. Call (866) 321-6172 to schedule a free estimate.
Why North Hollywood Residents Choose Us for GAF Service
Most roofing companies in the Valley push one brand. We work with seven: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That matters if you own a GAF roof, because we’re not angling to switch you to something else. We’re an independent contractor, not authorized or sponsored by GAF, which means our recommendations come from what we see on your roof, not from a manufacturer program. Rick Dominguez, our owner, grew up off Sepulveda Boulevard a few blocks from the old Van Nuys Municipal Airport and spent close to two decades on Valley rooftops before starting this company. He’s the one who trained the crew to inspect first and recommend second. If it doesn’t need replacing, we’re not going to tell you it does. For GAF work in North Hollywood, that honesty is the whole point. We do full-cycle work, inspection through repair through replacement, under one roof. Nobody’s getting handed off to a sub.
Styles & brands we work with






Common GAF Roofing Problems We Solve in North Hollywood
Here’s what we actually find on GAF roofs in this part of the Valley:
- Timberline seal-down strips that never bond. GAF Timberline shingles rely on a thermal seal strip to bond the courses together. In dusty, wind-scoured North Hollywood conditions, especially near the Sepulveda Basin’s open stretches, that strip sometimes never fully adheres. The first strong Santa Ana event lifts the shingles and they flap until they tear. We see this most on south-facing slopes where the afternoon heat should have sealed them but dust got in first.
- Granule loss and blown-off shingles on sun-blasted slopes. The east Valley runs hotter than the rest of LA. South- and west-facing GAF slopes in the 91601 and 91605 ZIP codes take triple-digit summer afternoons year after year, which embrittles the asphalt and strips granules until the fiberglass mat shows through. Once the mat is exposed, the next wind event takes the shingle with it.
- GAF Liberty rolled roofing failing at seams on apartment flats. North Hollywood’s one-story R-1 apartment buildings commonly carry low-slope built-up or rolled roofing. When GAF Liberty was installed over a deck that had already deflected, the seams crack and the roof ponds water. The ponding finds the crack, and the unit below finds the leak.
- Flashing failures on re-roofed-over shake bungalows. This is the one that trips up homeowners most often. A North Hollywood bungalow gets GAF shingles installed over the original wood shake, no tear-off. It looks fine. Then a leak shows up at the parapet or in a valley, nowhere near the shingle field. The problem is the flashing, which was never corrected for the new roof height and the shifting old deck underneath.
- Vent boot and pipe collar failures on stacked roofs. When there are two or three layers of roofing stacked, every penetration sits higher than intended. Standard vent boots and pipe collars get stressed, crack at the base, and leak during winter rains. We correct the penetration flashing as part of any GAF repair, not just the visible shingle damage.
GAF Service in North Hollywood: What Local Conditions Mean for Your Equipment
The housing stock here is not like what you’ll find in Sherman Oaks or Studio City. North Hollywood is ground zero for the Valley’s post-war tract bungalows and small stucco apartment buildings, most built between the late 1940s and mid-1950s and most still carrying assemblies that are now decades past their service life. What this means for GAF owners specifically: because so many of these bungalows were re-roofed over the original wood shake instead of torn off, a GAF tear-off in North Hollywood routinely uncovers two or three stacked layers and rotted skip sheathing under the stucco parapet. That’s a decking problem you rarely hit in newer neighboring Valley builds, and it changes the math on every repair estimate. You can’t see it from the ground. You can’t see it from the roof. You see it only when the old layers come off. When we give a North Hollywood homeowner a repair quote on a GAF roof, we’re always honest about what might be underneath, because down by Magnolia Boulevard and the 91601 ZIP, what’s underneath is usually the real problem. The GAF shingles on top may be perfectly serviceable, but if the skip sheathing under them is dust, the roof fails from the bottom up.
GAF Models & Products We Service in North Hollywood
We install and repair the full GAF residential line you’re likely to find on North Hollywood homes: Timberline HDZ architectural shingles, Timberline Natural Shadow, GAF Liberty for low-slope and flat work, plus Pro-Start starter strip and Seal-A-Ridge hip and ridge cap. On repairs, we use genuine GAF shingles, starter, ridge cap, and GAF-branded underlayments and accessories to keep the assembly matched. Flashing and decking, we’ll use quality aftermarket material where it’s equal or better for the application; there’s no point paying a brand premium for a boot that fails the same way regardless. We keep common Timberline HDZ colors and GAF Liberty cap sheet in stock locally, so most North Hollywood repairs don’t wait on a distributor order.
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Serving North Hollywood, CA — Our Local Coverage Area
We’re based in North Hollywood, CA and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – GAF Roofing in North Hollywood
My North Hollywood bungalow has GAF shingles over old wood shake – can you repair the leak without a full tear-off?
Sometimes, but not always. If the GAF field is sound and the leak is at a flashing point, we can often repair it. But if the skip sheathing under the shake has rotted, a patch will only buy time, and the next leak will show up somewhere else. We’ll pull back a section and check. Call (866) 321-6172 and we’ll assess it before recommending anything.
Which GAF shingle holds up best to North Hollywood’s summer heat and UV?
Timberline HDZ is our usual recommendation for North Hollywood’s south- and west-facing slopes because of its heavier mat and better granule retention. The east Valley sun is brutal, and we see less granule loss on HDZ than on older Timberline lines. Natural Shadow is fine for lower-sun exposures.
Do GAF shingles fail in Santa Ana winds on North Hollywood’s low-slope and shallow-pitch roofs?
They can. Seal-down strips that never bonded, usually due to dust, let wind get under the shingle and lift it. On shallow-pitch roofs, wind-driven rain can then push water up under the shingle course. Proper starter and proper nailing matter a lot here. We check both as part of the repair.
Can you put GAF Liberty rolled roofing on my one-story North Hollywood apartment’s flat roof?
Yes, GAF Liberty self-adhering cap sheet is a solid fit for low-slope and flat work on those one-story R-1 apartment buildings, provided the deck is sound and the seams are installed cleanly. If the deck has deflected, the seams will crack regardless of product, so we address the deck first.
Will you match my existing GAF shingle color and profile on a partial repair?
In most cases, yes. We keep common Timberline HDZ colors in stock and can order less common ones. Keep in mind that sun fading means even a perfect match won’t be invisible, but the profile will be right and the repair will be watertight. Call (866) 321-6172 and we’ll get eyes on it.
Service Areas Near North Hollywood
We serve North Hollywood and the surrounding east Valley. That includes Van Nuys, Valley Glen, Sherman Oaks, Studio City, and North Hills. If you’re just over the line and wondering, call and ask. If you’re toward the west Valley, our GAF service in Northridge covers that side, and for hillside homes near the studios, see our GAF service in Universal City.
Book Your GAF Service in North Hollywood Today
Get a straight answer on your GAF roof. We’ll get up there, take a look, and tell you what’s wrong and whether it’s a repair or a replacement. Free estimate, no obligation, no brand push. Call (866) 321-6172 to schedule yours.
Written by Rick Dominguez, Owner at Van Nuys Roofing Co, offering GAF sales & service and serving North Hollywood and the San Fernando Valley.