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CertainTeed Roofing in Crestline, CA | Oakmont Roof Repair
We service CertainTeed roofs across Crestline, CA, from Roof Repair – Crestline on Landmark shingles to full replacements with Presidential Shake. We’re an independent CertainTeed installer, not a factory-authorized dealer, which means our recommendations are based on what your ridge line actually needs, not what a manufacturer program tells us to push. If your roof is leaking or the snow is piling up and you’re not sure what’s underneath, call (866) 942-0875 and we’ll take a look.
Why Crestline Residents Choose Us for CertainTeed Service
CertainTeed makes a solid shingle. We’ve installed enough of them on Crestline cabins and mountain homes to know where they hold up and where mountain weather finds the weak spots. Our team reads CertainTeed’s installation specs against what we see on actual roofs off Crest Forest Drive and the north-facing slopes every winter. Noel Fierro, who runs Oakmont Roof Repair, spent years on rooftops across San Bernardino County before focusing on this mountain market. He’ll tell you when a repair is enough and when it isn’t, and he’s not interested in selling you a roof you don’t need. The roof doesn’t lie, and neither do we. Call our Crestline service area team for an honest assessment first.
Styles & brands we work with






Common CertainTeed Roofing Problems We Solve in Crestline
- Ice dams backing up under Landmark shingles: North-facing slopes in Crestline collect snow that melts in afternoon sun, then refreezes at the eaves overnight. That ice dam forces water back under the shingles, past failed underlayment, and into the decking. We see this every winter on cabins that were originally built without ice-and-water shield.
- Sealant strip failures on Presidential Shake: Freeze-thaw cycles stress the adhesive lines on luxury shingles. When those tabs lose their bond, snow creep and wind uplift start lifting individual tabs. It starts small, but a few loose tabs on a steep pitch will open the roof fast.
- Granule loss on south-facing exposures: Crestline sun is fierce at altitude. UV exposure accelerates granule shedding on CertainTeed shingles, which exposes the fiberglass mat underneath. Once you see bare mat, the shingle’s life is measured in seasons, not years.
- Valley and chimney flashing failures: CertainTeed shingles meeting older metal flashing or wood shake transitions is a common failure point here. Snowmelt refreezes along those lines, working the flashing loose until water finds a path inside.
- Skip sheathing under old shingle replacements: Many 1940s through 1970s Crestline cabins have original spaced decking. CertainTeed shingles aren’t rated to span gaps, so we add solid decking before any replacement. We’ll cover this more below.
CertainTeed Service in Crestline: What Local Conditions Mean for Your Roof
Here’s the thing most valley roofers don’t deal with: Crestline’s mid-century cabins often have original skip sheathing, or spaced 1×6 decking boards with gaps between them. CertainTeed shingles require continuous decking to meet their warranty and installation specs. If you’re getting a roof replaced or a large section reshingled on a 1950s cabin, and the contractor just nails new shingles over those gaps, the shingles will sag, crack, and fail early. We see it all the time on houses off Crest Forest Drive. Oakmont routinely adds OSB or plywood sheathing before installing DiamondDeck underlayment and Landmark or Presidential shingles. It costs more upfront, but it’s the difference between a roof that lasts 25 years and one that leaks in five. If you’re unsure what’s under your existing shingles, call (866) 942-0875 and we’ll inspect it.
CertainTeed Models & Products We Service in Crestline
We work with the CertainTeed product lines most common on Crestline homes: Landmark architectural shingles, Presidential Shake luxury shingles, NorthGate scalloped shingles for higher-end cabins, and DiamondDeck synthetic underlayment. For full replacements and warranty-eligible repairs, we use OEM CertainTeed materials. For targeted leak fixes on mixed-age roofs, we’ll match quality aftermarket flashing and underlayment that performs as well or better. We stock common CertainTeed colors and accessory pieces locally so turnaround on Crestline repairs stays quick. Need something specific? We can order it and have it on the mountain within days.
See the difference
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AfterCertainTeed Service Pricing in Crestline
CertainTeed shingle repair in Crestline typically runs $375 to $600 for a standard leak fix, while a full Landmark architectural shingle replacement on a typical mountain cabin runs $8,500 to $14,000 depending on pitch, decking condition, and whether we need to add solid sheathing. The biggest variable here is the decking: if the cabin has skip sheathing, we have to address that before shingles go on. Presidential Shake runs higher because the material costs more and the install is slower on steep pitches. Every estimate we give you includes a written line-item breakdown, no change orders unless you ask for something different. Call (866) 942-0875 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 – CertainTeed Roofing in Crestline
Yes. CertainTeed Landmark and Presidential Shake lines carry Class A fire ratings when installed per manufacturer specs, which is required for most Crestline properties under current mountain fire-code requirements. For snow load, the installation details matter more than the shingle itself: proper underlayment, ice-and-water shield at the eaves, and solid decking. Call (866) 942-0875 and we can check your specific property’s requirements.
Usually not. Ice dams are a ventilation, insulation, and underlayment issue more than a shingle problem. The shingles are the top layer. What’s failing is the roof’s ability to shed meltwater before it refreezes at the eaves, or the underlayment underneath isn’t sealed properly. On older Crestline cabins without ice-and-water shield, we see this every winter. The fix is often targeted rather than a full re-roof. We’ll tell you which one applies to your house.
Yes, we can. Missing Presidential Shake tabs are a common call after winter wind events up here. The repair involves inspecting the underlying decking for water intrusion, then replacing the damaged shingles with matching CertainTeed material. If the loss is widespread, we’ll recommend a larger section replacement and give you an honest cost comparison. Call (866) 942-0875 for an exact quote. Estimates are free.
Freeze-thaw cycles cause metal flashing to expand and contract at different rates than the shingles and decking around it. Over time, that movement loosens fasteners and breaks sealant bonds at valleys, chimneys, and pipe penetrations. We see failed flashing more often than failed shingles on Crestline roofs. It’s typically a targeted repair, not a full replacement.
We do this regularly. Many original Crestline cabins have wood shake roofs that no longer meet Class A fire assembly requirements. CertainTeed Landmark architectural shingles are a common replacement choice because they carry the needed fire rating when installed with proper underlayment. The job often involves adding solid decking over original skip sheathing, which we handle as part of the scope. Call (866) 942-0875 for a free estimate based on your roof’s specific condition.
Service Areas Near Crestline
Oakmont Roof Repair serves Crestline and surrounding mountain and high-desert communities. We also handle CertainTeed roofing work in nearby areas including CertainTeed service in Lake Arrowhead and CertainTeed service in Piñon Hills. For full coverage details, see our CertainTeed sales & service page.
Book Your CertainTeed Service in Crestline Today
If your CertainTeed roof is leaking, missing shingles, or just looking tired after a Crestline winter, call (866) 942-0875 to schedule a free estimate. We’ll inspect, explain what we find, and give you a written quote. No pressure, no upsell, just an honest assessment from a roofing specialist who knows this mountain.
Written by Noel Fierro, Owner at Oakmont Roof Repair, serving Crestline and the San Bernardino CertainTeed service area.