Architectural shingles
Metal roofing
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across Crestline
A full roof replacement in Crestline typically runs $14,000 – $28,000 for an average mountain cabin, with the final number driven by decking condition, roof pitch, and snow-load requirements. Most jobs take 5 – 10 working days once permits clear. We’ve worked these forest lots and lake-side streets long enough to know that no two Crestline roofs come apart the same way. That’s why every one of our estimates starts with an inspection, not a brochure and a handshake. If you’re weighing repair against replacement on a cabin in the 92325, call (877) 755-4274 and we’ll give you an honest read on what your roof actually needs.
Why Weathervane Roof Repair Is Crestline’s Preferred Roof Replacement Company
We’re a roofing-only company. That’s the whole business. No siding, no windows, no general contracting side hustle. Gil Tanner built Weathervane around one idea: a homeowner in Crestline should be able to get a straight answer about their roof without being sold a $20,000 job when a $1,200 repair would hold for another eight years. Our Roof Replacement team works with seven major shingle brands, so the material conversation starts with your existing roof and your budget, not with whatever we have in the yard.
Crestline homeowners tell us the same thing: other roofers quote from the driveway without ever putting boots on the shingles. We don’t do that. Inspection first. Always. If the roof has five years left, we’ll tell you. If the decking is shot and the eaves are rotten from ice damming, we’ll show you photos and explain what it costs to fix it right. That approach has earned us a strong local reputation across the 92325, from the lake-front streets up to the ridge roads.
Serving Roof Replacement in Crestline means understanding what this mountain does to a roof. We know these cabins. We know the pitch, the framing, the way snow sits on north-facing slopes well into April. You get an estimate from someone who has opened up enough Crestline homes to know what’s waiting underneath the old shingles.
Styles & brands we work with






Flat Roof Replacement in Crestline
Flat Roof Replacement in Crestline comes up more than you’d expect for a mountain town. Plenty of cabins and lake houses have low-slope additions, carports, or bump-out sections built decades ago that now hold water, crack at the seams, or leak at the flashing. A flat or low-slope roof replacement in the 92325 typically runs $8,000 – $16,000 depending on square footage, membrane type, and whether the existing plywood sheathing has water damage. We install durable membrane systems that handle standing snow and spring runoff, and we tie them into the pitched sections so the transition doesn’t become a future leak point.
Low-Slope Sections on Cabins
Crestline’s older cabins often have a small flat section over a porch or mudroom addition. These are notorious for pooling water, and once the membrane fails, the decking below rots fast. We replace the compromised sheathing, install a proper tapered system for drainage, and flash the transition to the main roof correctly. Not caulked. Flashed.
Snow-Load Derating
A flat roof at 4,800 feet has to carry real snow weight. We size the framing and decking to the county’s snow-load requirements for the San Bernardino Mountains. If the original structure wasn’t built for 60 pounds per square foot, we add the support before the membrane goes down. Skipping this step is why some Crestline flat sections sag after the first heavy winter.
Roof Installation in Crestline
Roof Installation in Crestline is what we call a full tear-off and re-roof on houses getting their second or third roof in the life of the building. Most Crestline homes were built between the 1920s and 1970s, and a lot of them are still carrying their original wood shake or early composition shingles. A complete roof installation in the 92325 market runs $15,000 – $30,000 for the typical mountain home, with architectural shingles being the most common spec. The range widens because every tear-off reveals something. We plan for that from the first walk-through.
Wood Shake to Architectural Conversion
We do a lot of shake-to-shingle conversions in Crestline. It’s a code-driven job: WUI fire rules want Class A assemblies, and old shake doesn’t qualify. We strip to the decking, repair what the shake hid, then install a Class A system with architectural shingles from manufacturers like CertainTeed or Owens Corning. The homeowner gets a roof that won’t ignite from ember fall and that actually sheds snow properly.
New Decking Over Settled Framing
Crestline’s sloped forest lots mean settled framing, and settled framing means decking that no longer lays flat. When we install a new roof, we re-plane or sister rafters where needed, replace delaminated plywood, and only then lay the underlayment. The shingle line you see at the end is only as good as the deck below it. We show homeowners the framing before we cover it back up.
Trusted Brands We Service in Crestline
We’re brand-agnostic on purpose. Weathervane installs and repairs materials from seven major manufacturers: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That means when a Crestline homeowner asks for a recommendation, they get one that fits their roof pitch, their snow exposure, their fire-zone requirements, and their budget. If your existing roof is IKO and you want to match the profile, we do that. If you’d rather move to a Tamko or Atlas architectural shingle with a stronger wind rating, we’ll show you the numbers. We keep common materials and accessories staged for Crestline jobs, which shortens the timeline between signed contract and first shingle on the deck.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Crestline Homes
- Rotted decking under old shake. Wood shake traps moisture against the plywood. On the 1920s – 1970s cabins around Crestline, we regularly find soft, delaminated decking once the old roof comes off. The re-sheet cost isn’t in the original bid, so we write a decking allowance into every contract before we start.
- Ice damming at the eaves. Freeze-thaw cycles at 5,000 feet push snowmelt under the shingle edge, where it refreezes and backs water up under the roof. The damage is often at the soffit and rafter tails, not the field of the roof. We address this with ice and water shield at the eaves and proper attic ventilation, not just another layer of shingles.
- Wood shake original to the house. Many Crestline cabins still carry shake that dates to the Eisenhower administration. It’s a fire hazard under current WUI rules and it leaks, often in multiple places. Insurance companies increasingly won’t write policies on these roofs. Replacement here is almost always the right call.
- Old composition shingles on settled framing. Steep lots shift. Over decades, the framing settles and the decking goes wavy, which breaks the shingle seal and lets wind get underneath. Wind-driven rain then finds every nail pop. We see this on the ridge roads and lake-side streets alike in the 92325.
Pricing for Roof Replacement in Crestline, CA
A full roof replacement in Crestline on a typical 1,200 – 1,800 square foot mountain cabin runs $14,000 – $28,000. Architectural shingle systems land at $600 – $800 per square here, with a “square” being 100 square feet of roof area. Wood shake tear-off adds $2,500 – $5,000 depending on dump fees and access. Decking replacement, when needed, is priced per sheet at $70 – $110 installed. Flat roof sections run $12 – $18 per square foot. Permits, WUI inspections, and snow-load engineering are separate line items we handle for you and put in writing before we start. Call (877) 755-4274 and we’ll walk the roof with you and put a fixed number on paper. Estimates are free.
We Also Serve Cities Near Crestline
Weathervane Roof Repair works throughout the San Bernardino Mountains and down into the valley floor. In addition to Crestline, our crews regularly serve Lake Arrowhead, Muscoy, San Bernardino, and Highland. If you’re in one of those communities and looking for the same inspection-first approach, call (877) 755-4274.
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 About Roof Replacement in Crestline
A Crestline re-roof costs more because it’s a different job. You’re at roughly 4,600 – 5,000 feet in a WUI-designated fire zone with snow-load requirements the valley never sees. Flatland quotes typically skip Class A fire assembly details, ice and water shield at the eaves, and the snow-load engineering the county requires. If a quote seems low, ask the roofer if they’ve ever worked at 5,000 feet before. Then call (877) 755-4274 and we’ll show you exactly what a mountain-spec bid looks like.
Almost certainly yes, and that’s the point. On older Crestline cabins, the things that fail are hidden: rotted decking under wood shake, soft rafter tails from ice damming, delaminated plywood on settled framing. We handle it by writing a decking allowance and a framing contingency into every contract. Anything we find gets priced and approved by you in writing before we proceed. You’ll never get a surprise line item at the end of the job.
We build for it. Ice and water shield goes at the eaves and in the valleys, we upgrade the underlayment to handle freeze-thaw, and we verify the attic venting so snowmelt doesn’t refreeze at the soffit edge. Snow creep and ice damming are the real reasons old Crestline roofs fail, so they’re part of our standard re-roof spec, not an upsell. Full stop.
A square is a roofing industry unit: 100 square feet of roof area. When a bid says “$700 per square,” that’s $700 for every 100 square feet of roofing surface, not floor space. To compare two Crestline bids honestly, look at four things: whether tear-off and dump fees are included, whether decking replacement is priced as an allowance or per-sheet, whether ice and water shield and WUI fire details are specified, and whether permits and snow-load engineering are line items. If one bid is missing those, it isn’t the cheaper bid. It’s the incomplete one.
Yes. We replace flat and low-slope sections regularly on Crestline cabins, including additions, carports, and porch roofs. These sections need proper membrane systems, tapered drainage, and snow-load verification, and they need to transition cleanly into the pitched sections. We do the whole thing as one roof system, not two separate patches. Call (877) 755-4274 for a free estimate.
Written by Gil Tanner, Owner at Weathervane Roof Repair, serving Crestline and the San Bernardino Mountains.