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GAF Construction in Highland, CA | Elmwood Contractors
We’re Elmwood Contractors, and we provide independent GAF roofing installation and repair across Highland, CA. What makes our GAF work here different is simple: Highland is a city split in two, with flat postwar tract homes on the valley floor and graded, wind-exposed parcels up toward the Crafton Hills, and the same shingle system behaves very differently on each. Call (866) 253-8554 to schedule a free estimate, and we’ll tell you plainly whether your GAF roof needs a repair or a full replacement.
Why Highland Residents Choose Us for GAF Service
We’ve spent years working on GAF roofing systems across both sides of Highland, so we know what a Timberline HDZ looks like when it’s aged on a flat subdivision lot versus one that’s been hammered by Santa Ana gusts on a foothill street. Nolan Shepherd, our owner, grew up in Fullerton and has built his career on material selection that holds up to Southern California’s heat cycles. The right material in the right place. Everything else is just catching up to that decision.
We’re an independent contractor, not authorized or sponsored by GAF. That independence means we recommend repair when a repair makes sense and replacement when the deck or underlayment says it can’t wait. You’ll get a straight answer before any work starts. Our GAF knowledge runs deep, and our GAF sales & service work across the Inland Empire backs that up with real roofs, real repairs, and real callbacks avoided.
Styles & brands we work with







Common GAF Construction Problems We Solve in Highland
- Granule loss and blistering on sun-scorched slopes. Highland’s triple-digit summer afternoons cook roofing. We routinely find Timberline HDZ roofs where the south- and west-facing planes are aged well past the shaded north slopes, because Inland Empire heat doesn’t hit every side of a house equally.
- Wind-uplift and missing shingles after Santa Ana events. The elevated streets toward the Crafton Hills have nothing blocking the gusts. We see high-nailed and lifted shingles there that flat-lot tract homes a few streets down rarely experience.
- Deck and flashing rot at valleys and chimneys. Highland’s winter rain concentrates in a short window, and on graded foothill pads it funnels hard. Rot shows up at the valleys and chimney bases after the first big storm, and it’s often the deck, not the shingle, that’s failed.
- Heat-trapped older roofs with layered shingles. A lot of Highland’s older unincorporated-era homes got re-roofed over the original shingles decades ago. That second layer traps heat from below and cooks the new GAF shingles prematurely.
- Low-slope patio and porch tie-in failures. When a Highland home has a patio roof tied into the main GAF system, the transition often leaks. We fix those tie-ins with GAF Liberty SBS self-adhered membrane where the slope drops too low for shingles to shed water properly.
GAF Service in Highland: What Local Conditions Mean for Your Equipment
Because Highland’s elevated streets toward the Crafton Hills sit on graded pads and slopes, roofs there take wind and runoff differently than the flat tract homes a few streets down, so on those parcels we scope the GAF service in Loma Linda and similar foothill jobs around slope-driven drainage at valleys and fascia, not just the shingle field. A homeowner on a flat 1960s lot might get away with a localized repair, while a home two blocks up with the same square footage of GAF Timberline could need new sheathing, rebuilt valleys, and ridge venting before any shingles go back on. On one graded-pad ranch home up toward the foothills, our crew tore off a wind-damaged GAF Timberline HDZ roof where a Santa Ana gust had lifted and creased shingles along the west-facing ridge. We found the valley flashing had been dumping winter runoff against rotted fascia, so we replaced the sheathing and flashing before installing a new GAF system with proper ridge venting instead of just nailing on new shingles. That’s the difference between treating the symptom and treating the slope.
GAF Models & Products We Service in Highland
We install and repair the full GAF lineup you’ll see across Highland, from GAF in San Bernardino to the edges of the Inland Empire. That includes Timberline HDZ architectural shingles, Timberline UHDZ with LayerLock and StrikeZone nailing zone, and GAF Royal Sovereign traditional 3-tab shingles, which cover a lot of the mid-century tract homes around 92346. For low-slope porch and patio tie-ins, we use GAF Liberty SBS self-adhered membrane. On parts and accessories, we use GAF-branded ridge vent, starter strip, and matching hip-and-ridge where they belong on a GAF system, and quality aftermarket underlayment and flashing where the brand doesn’t make a meaningful difference, so your budget goes to the deck and water management instead of a logo on a roll of felt.
See the difference
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AfterGAF Service Pricing in Highland
Every Highland roof is different, and the split between flat valley lots and graded foothill parcels makes it impossible to quote accurately over the phone. That’s why our estimates are free and line-itemed. You’ll see exactly what the materials cost, what the labor costs, and what the deck and flashing work will run, whether it’s a $400 shingle repair or a $20,000 full GAF replacement with new ventilation. Here’s where Highland GAF work typically lands:
| Service | Price Range |
|---|---|
| Roof Replacement | $8,000 – $20,000 |
| Roof Repair | $400 – $1,800 |
| Tile Roof Repair | $600 – $2,500 |
| Metal Roof Installation | $15,000 – $40,000 |
Call (866) 253-8554 for an exact quote on your Highland roof. The estimate is free, and it’ll tell you exactly what you’re dealing with.
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 Construction in Highland
If the deck is sound and the shingles are failing in one localized area, a repair is the right call. But a lot of Highland’s older tract homes have a second layer of shingles over the original roof, and that traps heat and voids the point of patching. We’ll inspect the deck and tell you which side of that line you’re on. Call (866) 253-8554 and we’ll look at it for free.
No. We’re an independent contractor with deep GAF product experience, but we’re not affiliated with or sponsored by the manufacturer. That’s deliberate: it means we can tell you when a GAF repair in Muscoy or Highland makes sense and when a competitor’s product might actually serve a Highland foothill roof better, which we’ve done when the conditions call for it.
Where they matter, yes. Like with GAF in Redlands, we use GAF ridge vent, starter strip, and hip-and-ridge accessories on GAF systems. For underlayment and flashing, we spec what performs, not what carries the brand name, because a rot-resistant valley beats a branded roll of felt when Highland’s winter rain funnels down a graded pad.
Most repairs are done in one visit. A full roof replacement on a flat-lot tract home runs two to three days. On a sloped Crafton Hills lot with deck replacement, expect about a week. The slope isn’t just a roofing issue, it’s a scheduling one, and we don’t cut corners to rush it.
Most Highland replacements fall between $8,000 and $20,000 depending on the roof’s square footage, pitch, and what we find under the shingles. If the deck is rotted or a second layer needs to come off, you’re on the higher end. Call (866) 253-8554 for a written, line-item estimate, free.
Service Areas Near Highland
We serve Highland and the surrounding Inland Empire, including nearby foothill and valley communities. Our Highland service area coverage extends to Redlands, San Bernardino, Loma Linda, and Mentone. For GAF work further south, see our GAF service in Nuevo and GAF service in Murrieta pages.
Book Your GAF Service in Highland Today
Before another Santa Ana season or winter storm hits your Highland roof, get it inspected. Call (866) 253-8554 to schedule your free estimate, and we’ll give you a straight answer on repair versus replacement. One contractor, every trade, interior to exterior.
Written by Nolan Shepherd, Owner at Elmwood Contractors, serving Highland and the Inland Empire with GAF roofing expertise.