Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Owens Corning Construction in Crestline, CA | Elmwood Contractors
Owens Corning roofing installation and repair in Crestline, CA is handled by our team at Elmwood Contractors, a Crestline General Contractor, not a manufacturer-authorized dealer. The difference here is that we know what San Bernardino Mountain weather does to a roof over fifteen or twenty winters. Call (866) 253-8554 for a free estimate on Owens Corning roof replacement, repair, or metal roofing anywhere in the 92325 zip code.
Why Crestline Residents Choose Us for Owens Corning Service
We install and repair Owens Corning roofing systems across the San Bernardino Mountains, and most of what we do is fixing what mountain weather does to them, not reading a spec sheet. Because we’re independent, we can tell you honestly when a repair makes sense on a 40-year-old roof and when a full replacement with Owens Corning’s newer fire-rated products is the better call. Nolan Shepherd, owner of Elmwood Contractors, grew up knowing which houses would have problems before they showed them. He spent his twenties doing ground-up residential work across North Orange County, and for the past two decades he’s run our crews with the same habit: framing that’s plumb the first time, and materials that hold up to Southern California heat cycles without callbacks. Our Owens Corning sales & service work in Crestline draws on that same discipline.
Styles & brands we work with







Common Owens Corning Construction Problems We Solve in Crestline
- Granule loss from high-altitude UV: At roughly 4,500 feet, Crestline’s dry summer sun beats down harder than it does down the hill. We regularly see Owens Corning Supreme 3-tab shingles on older cabins that have gone chalky and thin, with granules collecting in gutters after every rain. That’s not cosmetic. It’s the shingle wearing out from the top down, and once the asphalt is exposed, the clock moves fast.
- Ice-dam damage at eaves and valleys: Freeze-thaw cycles pry up tab seals on steep mountain roofs. Snow melts during the day, refreezes at night, and water backs up under the shingle edges. We find this most often at eaves and in valleys where older underlayment never included an ice-and-water shield.
- Nail pops and lifted tabs from thermal cycling: Crestline swings from freezing nights to hot afternoons, sometimes in the same week. That movement works nails loose and lifts shingle tabs until wind gets underneath them. On a roof with a dozen nail pops, you’re looking at a roof-wide issue, not a one-off repair.
- Deck rot on older pier-and-beam cabins: Many Crestline cabins were built in the 1960s and 1970s with nothing more than felt paper under the shingles. Once that underlayment failed, moisture sat against the sheathing. We open roofs and find decking soft enough to push a screwdriver through with one hand.
- No ice-and-water shield at the eaves: If the original builder never installed a peel-and-stick membrane at the eaves, every winter freeze-thaw cycle pushes water up under the first course of shingles. The fix is not another tube of roof cement. It’s pulling the eave flashing, laying Owens Corning WeatherGuard HP, and reinstalling properly.
Owens Corning Service in Crestline: What Local Conditions Mean for Your Equipment
Many Crestline cabins on slopes were built decades ago without permits or to now-outdated codes. Before we lay a single Owens Corning shingle, we often have to expose and correct sheathing, flashing, and venting that no inspector ever signed off on. Retrofitting to current code is part of nearly every roof job up here, and it’s the part generic roofing estimates skip until the crew is on the roof with the old shingles in a dump trailer and rot staring back at them. On a 1960s pier-and-beam cabin near Rim of the World Drive, our crew pulled up the old 3-tab shingles and found soft decking and no ice-and-water shield at the eaves. We replaced the rotted sheathing, laid Owens Corning WeatherGuard at the valleys and eaves, and finished with Duration shingles and SureNail, a system that stands up to snow load and freeze-thaw where the old roof was failing. That’s the reality of Owens Corning construction in Crestline service area work: the roof you see is half the job. The decking, flashing, and venting underneath are the other half.
Owens Corning Models & Products We Service in Crestline
We work with the full Rialto Owens Corning service lineup, but the ones we see most in Crestline are the Supreme 3-tab on older cabins, Oakridge architectural shingles on 1980s and 1990s second homes, and Duration with SureNail Technology on modern replacements. For underlayment, we stock WeatherGuard HP and Deck Defense synthetic, which handle the snow-load and freeze-thaw conditions here better than felt. We match existing shingle profiles and colors from the same product family whenever possible, and we use OEM or equivalent-rated underlayments and starter strips rather than generic substitutes. If you have a roof with widespread granule loss or multiple failing valleys, we’ll tell you plainly that patching a few squares just buys time, and we won’t oversell a replacement if a targeted repair is sound.
See the difference
Before
After
Before
After
Before
AfterOwens Corning Service Pricing in Crestline
Roof work in Crestline costs what it costs for two reasons: access and substrate. The narrow roads and grades mean materials get hauled up in smaller loads, and the condition of what’s under the shingles determines how much sheathing and framing work happens before new Owens Corning product goes down. Our estimates are line-item so you see exactly where the money goes.
| Service | Price Range |
|---|---|
| Roof Replacement | $8,000 – $20,000 |
| Roof Repair | $400 – $1,800 |
| Metal Roof Installation | $15,000 – $40,000 |
| Tile Roof Repair | $600 – $2,500 |
Every estimate includes a written scope, the Owens Corning product line we recommend for your roof, and a breakdown of what we’ll do about the sheathing and flashing underneath. Call (866) 253-8554 to schedule a free estimate.
Serving Crestline, CA — Our Local Coverage Area
We’re based in the Crestline 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 – Owens Corning Construction in Crestline
Material delivery on narrow Crestline roads means smaller staged loads and, in some cases, shuttle runs from a drop point. Roads like Highway 18 and Rim of the World Drive have grades and turns that a full flatbed can’t always navigate safely, so we coordinate deliveries in stages and keep materials covered and off the road. Call (866) 253-8554 and we’ll walk you through what your specific street can handle.
No, Elmwood Contractors is not Owens Corning in San Bernardino. We’re not manufacturer-affiliated or authorized by Owens Corning. That independence means we recommend Owens Corning products where they fit, and we’ll tell you honestly when another material makes more sense for your roof. The right material in the right place. Everything else is just catching up to that decision.
Yes. We match Owens Corning shingles to the existing profile and color from the same product family whenever possible, and we use OEM or equivalent-rated underlayments and starter strips rather than generic substitutes. If the match isn’t exact, we’ll tell you before we order anything.
Most roof replacements in Crestline take three to seven days, depending on how much sheathing repair is involved and what the weather does. Snow, ice, and freeze-thaw conditions can extend a job by a few days. We schedule roofing work with the mountain forecast in mind, not the valley forecast. Call (866) 253-8554 for a timeline based on your roof’s condition.
Most target repairs run between $400 and $1,800, but if we find rotted decking, failed underlayment, or code issues that need retrofitting, the scope grows. That’s common up here on older unpermitted cabins. We’ll show you the problem before we quote the fix. Call (866) 253-8554 for an exact price on your roof.
Service Areas Near Crestline
Our Owens Corning roofing crews serve Crestline and the surrounding mountain and valley communities, including Lake Arrowhead, Running Springs, and Blue Jay, along with Owens Corning service in Highland and Owens Corning service in Nuevo for clients planning work down the hill.
Book Your Owens Corning Service in Crestline Today
Call (866) 253-8554 to schedule a free estimate on Owens Corning repair in Muscoy or roof replacement and metal roofing in Crestline. We’ll put a real person on the phone, schedule a site visit, and give you a line-item quote before any work starts.
Written by Nolan Shepherd, Owner at Elmwood Contractors, serving Crestline since our first mountain roof project.