Metal roofing
Architectural shingles
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
GAF Roofing in Highland, CA | Van Nuys Roofing Co
We service GAF roofs across Highland, CA. We’re an independent GAF service provider, not manufacturer-affiliated or authorized, which means we call repairs honestly, use OEM-compatible parts, and never steer you toward a replacement your roof doesn’t need. Highland’s foothill sun and the winds that pour through the Cajon Pass corridor punish GAF shingles in a very specific way, and we know exactly what that looks like on your slope. Call (866) 321-6172 for a free estimate on shingle replacement, leak repair, or full roof replacement.
Why Highland Residents Choose Us for GAF Service
Rick Dominguez grew up a few blocks from the old Van Nuys Municipal Airport and spent two decades on rooftops across the San Fernando Valley before starting his own operation. He learned the trade through the construction technology program at Los Angeles Valley College, and he’s known around Van Nuys for flat roof work and for being straight with people about what actually needs fixing versus what can wait another season. His dad was a finish carpenter, so working with his hands was never a question, and roofing stuck.
Seven leading brands, one crew that knows them all. We work with GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That matters for a GAF roof because we’re not steering you toward GAF just because it’s the only product we stock. If your roof needs GAF repair, we repair it. If it needs GAF replacement, we replace it. And if a different material makes more sense for your house, we’ll tell you that, too.
We inspect first, recommend second. Repairs on GAF roofs in Highland are judged on the condition of the assembly, not just the shingle. We’ll show you what we’re seeing, explain what it means, and let you call the shot. You’ll also find our links about GAF sales & service useful if you’re weighing repair against replacement.
Styles & brands we work with
Common GAF Roofing Problems We Solve in Highland
- Sun-baked, brittle Timberline shingles on west-facing slopes. Highland’s inland heat pushes roof surface temperatures extremely high, and after enough summers, GAF Timberline shingles on west slopes can lose their granules and cook their sealant strips open. We see this all over the foothill tracts, and it’s the reason a lot of homeowners first notice little piles of granules at the bottom of a downspout.
- Wind-scoured ridge caps and lifted tab edges after Santa Ana events. The Cajon Pass funnels gusts across open foothill lots in Highland, and ridge caps with compromised sealant take the worst of it. If a Santa Ana just blew through, it’s worth a close look at the ridge line and any edge the wind hit head-on.
- Failed underlayment beneath original 1960s – 90s GAF installations. Many Highland homes are reaching the point where the original underlayment has been heat-cycled for two or three decades. Shingles still look presentable, but the roof leaks. The shingle is doing its job; the layer underneath isn’t.
- Frozen or cracked sealant on north-facing slopes. The mountain-edge temperature swings in Highland can pull tabs apart before their time. We see it on north-facing slopes where the sealant never gets a chance to reset properly.
- Debris damage clustered on ridge lines. Wind-driven debris from the wildland-urban interface tends to collect damage along ridges and punch through shingle surfaces that heat already weakened. Highland’s foothill edges get this more sharply than the valley floor.
GAF Service in Highland: What Local Conditions Mean for Your Equipment
Highland’s 92346 foothill tracts sit directly under the mountain-edge wind and sun corridor, and GAF roofs here show asymmetric wear. West slopes cook while east slopes stay intact. After Santa Ana events, debris damage clusters on ridge lines, and the shingle surfaces already weakened by heat take the impact. Inspectors spot this pattern on foothill-edge roofs all through the 92346 tracts, and valley-floor cities like Redlands and San Bernardino rarely see it as sharply. If your roof looks fine from the street but you’ve noticed granule loss on one slope or lifted shingles after a wind event, the pattern tells us where to look first. It also tells us whether a spot repair will hold or whether the mat is too far gone.
On a foothill-edge ranch house in the 92346 tract above Highland, our crew found GAF Timberline shingles on the west slope so sun-brittle the granules wiped off by hand, while the east slope was still serviceable. We stripped the west and ridge, replaced the aged underlayment, and set new GAF Timberline HDZ with reinforced starter and ridge caps rated for the wind exposure. The homeowner now has a uniform assembly that stands up to the heat and the next Santa Ana instead of a patchwork.
GAF Models & Products We Service in Highland
We service the full range of GAF residential lines common on Highland homes. That includes GAF Timberline HDZ architectural shingles, GAF Timberline Natural Shadow architectural shingles, GAF Royal Sovereign 3-tab shingles, and GAF EverGuard TPO for low-slope sections. When the assembly calls for GAF-manufactured accessories, we use them: starter strips, ridge caps, and ventilation where they’re specified. Where aftermarket underlayments or fasteners outperform the budget line, we say so and use them. We carry the common components for fast turnaround in Highland, and anything less common is sourced from the local supply chain quickly.
Your roof, your material choice. We’re not locked into GAF alone, so when we recommend a GAF product, it’s because the product fits the roof and the budget, not because it’s all we have. For more on the brand itself, see our GAF sales & service page.
See the difference
Before
After
Before
After
Before
AfterGAF Service Pricing in Highland
Repair pricing in Highland typically falls in the $340 – $1,050 range depending on the scope, and full replacement on most tract and ranch homes runs $9,800 – $18,500. What drives that spread is the condition of the underlayment, the slope count, and whether the roof has tile sections or other materials that complicate the assembly. On a foothill home with west-slope damage only, a partial replacement often makes more sense than a full tear-off, and it’s a meaningful cost difference.
A free estimate includes a close look at the whole roof, not just the spot you called about, and a written line-item quote. If it doesn’t need replacing, we’re not going to tell you it does. Call (866) 321-6172 to schedule yours.
Serving Highland, CA — Our Local Coverage Area
We’re based in the Highland 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 – GAF Roofing in Highland
Yes, if the assembly is correct. The shingle itself is rated for the heat, but the underlayment, ventilation, and starter row need to meet GAF’s installation specs too. On Highland foothill homes where the west slope bakes, proper ventilation matters as much as the shingle. A roof with good intake and exhaust venting won’t trap heat against the deck, and that’s what extends shingle life. Call (866) 321-6172 for a condition assessment.
GAF’s wind coverage is tied to the shingle’s wind rating and whether the installation met the manufacturer’s nailing and starter requirements. If a Santa Ana lifts shingles that were installed correctly and within the rated wind speed, warranty coverage can apply. If the shingles were nail-applied outside the nailing zone or the sealant had already failed, the claim works differently. We’ll document the damage and help you understand what’s actually covered. Call (866) 321-6172 for a wind-damage inspection.
We can repair 3-tab shingles if the mat is still sound and the surrounding tabs haven’t lost their sealant. On 1970s Highland ranches, the deciding factor is usually the underlayment underneath. If it’s the original layer, it’s been heat-cycled for 50 years, and patching the shingles won’t stop the leaks. We’ll tell you which one you’re dealing with before any work starts.
Yes. Mixed-material roofs are common on Highland’s stucco and Spanish-style homes, and we treat each section on its own terms. The tile front gets tile-rated underlayment and accessories, and the GAF shingle back gets the correct starter, nailing, and ridge components for that product line. We’ll quote both sections without blending them into one confusing number.
The west slope takes the afternoon sun at the hottest part of the day, and in Highland that means surface temperatures far beyond what the east slope sees before noon. Granules wear off faster, sealant strips cook open, and the shingle mat breaks down. It’s not a defect; it’s physics. The fix is usually a partial replacement of the affected slope with proper underlayment and ventilation. We’ll confirm what’s actually happening and quote the scope. Call (866) 321-6172 for a full assessment.
Service Areas Near Highland
Our crews regularly work through the inland valleys and foothill communities around Highland. If you’re in the 92346 tract or just outside it, we can help. We also provide GAF service in Moreno Valley and GAF service in Lake Arrowhead. For homeowners closer to the San Fernando Valley side of our coverage, our Highland service area page has the full picture, including the neighborhoods around Van Nuys, Valley Glen, Sherman Oaks, Encino, Studio City, and North Hills.
Book Your GAF Service in Highland Today
If your GAF roof is showing granule loss, wind damage, or leaks, call us before it gets worse. We’ll inspect honestly, quote clearly, and repair or replace with your budget and your roof’s actual condition in mind. Call (866) 321-6172 to schedule your free estimate in Highland and the surrounding foothill communities.
Written by Rick Dominguez, Owner at Van Nuys Roofing Co, serving Highland and the Inland Empire foothills.