Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
After
Before
AfterFast, Reliable Roof Installation Across Big Bear City
A new roof in Big Bear City typically runs $14,000 to $28,000 for a standard single-family cabin or A-frame, with tear-off, snow-load verification, code-required underlayment, and architectural shingles included. Most full installations take 3 to 7 working days once permits clear, depending on what we find under the old roof. Call (743) 200-8347 and we’ll send a technician with a written, line-item price before any work begins – no surprises, ever.
We’ve opened up enough 1960s-era Big Bear City roofs to know what’s waiting underneath: undersized rafters, missing ice and water shield, dry-rotted decking around old vent pipes. We plan for it, price it plainly, and document every change order in writing. That’s the only honest way to roof a mountain home.
Why Mercer Roofing Is Big Bear City’s Preferred Roof Installation Company
Big Bear City homeowners don’t hire a roofer who shows up in a beat-up truck with no badge. They hire someone who tells them in advance who’s coming. Every Mercer Roofing technician is background-checked, identity-verified, and arrives in a clean uniform with a photo ID badge. Before we knock, we send the technician’s name and photo to your phone. That’s the Roof Installation standard we’ve held since 2000, and it matters more up here where neighbors look out for each other.
We’ve worked homes along Baldwin Lake Road, through the older cabin streets off Villa Grove Avenue, and around the Sugarloaf side of town. What we hear from customers echoes the same thing: the written guarantee matters. Every job includes a 365-Day Done Right Promise. If it’s not right within a year, we make it right. That’s not a marketing line – it’s a written guarantee on every roof we install in Big Bear City.
Our response to Big Bear City is coordinated through the brand’s Inland Empire office, and crews work locally in the valley throughout roofing season. A live person answers our phone 24/7. You’ll never reach a voicemail when a leak opens up at midnight.
Roof Flashing Installation in Big Bear City
Roof Flashing Installation in Big Bear City isn’t optional trim work – it’s the steel barrier that keeps meltwater from running under your shingles at valleys, chimneys, skylights, and roof penetrations. At 6,752 feet, snow packs against flashing for weeks, freezes at night, and refreezes during thaw cycles. If flashing is loose, rusted, or pitched wrong, water moves sideways into the roof deck. We see it constantly on 1960s and 1970s cabins that were flashed with galvanized material never intended for this freeze-thaw abuse.
Typical roof flashing installation in Big Bear City runs $900 to $3,200 depending on how many valleys, chimneys, or penetrations need work. Full re-flashing as part of a tear-off re-roof usually lands between $2,500 and $6,500. We write the price before we start, and the flashing gets the same 365-Day Done Right Promise as the shingles.
Ice and Water Shield at the Eaves
Proper flashing starts with a self-adhering ice and water shield membrane running at least 24 inches up from the eave edge. On a Big Bear City roof without it, snowmelt backs up behind ice dams and feeds directly onto bare decking. We install the membrane before any metal goes down, then overlap step flashing shingle-by-shingle so water always moves downhill, never sideways.
Chimney and Valley Flashing on A-Frames
A-frame and steep-pitched cabins concentrate runoff into narrow valleys. Those valley seams need continuous metal, not patchwork caulk. We also rebuild chimney cricket flashing on masonry fireplaces – a common source of slow leaks that show up as ceiling stains below the pipe in January.
TPO Roofing Installation in Big Bear City
TPO Roofing Installation in Big Bear City is the standard choice for flat and low-slope porch roofs, dormers, garages, and additions that can’t shed snow the way a steep pitch does. TPO is a heat-welded single-ply membrane that handles standing meltwater far better than old torch-down or roll roofing, and it stands up to the high-altitude UV that bakes flat surfaces all summer long. Our crews have installed TPO on Big Bear City carports, cabin additions, and rental units where ponding water was eating the old roof alive.
Expect TPO roofing installation in Big Bear City to run $7 to $14 per square foot depending on insulation, decking condition, and edge detail work. A typical 400-square-foot flat roof lands between $3,200 and $5,900 including tear-off and new TPO membrane. We write that price down before materials hit the truck.
Drainage and Snow Load on Flat Surfaces
Flat roofs in the mountains fail at the drain, not the membrane. We inspect scuppers and internal drains first, then verify the deck can carry the county’s snow-load requirement – which can exceed 100 psf in the Big Bear Valley. If the structure passes, we install TPO in mechanically fastened or fully adhered systems with heat-welded seams at every penetration.
When TPO Makes Sense Over Shingles
If your Big Bear City addition or porch has a pitch under 2:12, shingles are the wrong product. Water moves too slowly, snow doesn’t slide, and ice builds at the edge. TPO is the right call there. We’ll tell you straight if a low-slope section should be TPO while the main roof stays architectural shingle – and we’ll price both on the same written quote.
Trusted Brands We Service in Big Bear City
We install and service manufacturer-recognized shingle brands including GAF, Atlas, and Boral, with material warranties we file on your behalf. For Big Bear City customers, that means our crews keep fast access to regional stock for alpine-grade architectural shingles, ice and water shield, and TPO membrane. No waiting three weeks for a special order when October snow is two weeks out. We also carry manufacturer training on high-wind and cold-weather installation details that matter at this elevation.
Common Roof Installation Problems We See in Big Bear City Homes
- Missing ice and water shield under old shingles. Most mid-century Big Bear City cabins were roofed before the county required a self-adhering membrane at the eaves. When snow melts and refreezes, water backs up under the first course of shingles and rots the deck edge. We find this on nearly every tear-off we do.
- Undersized rafters that fail today’s snow-load verification. San Bernardino County requires a permit review of the existing roof structure’s snow-load rating before re-roofing older cabin-era homes. Rafters sized for seasonal use in 1968 often don’t clear 100 psf. We bring in an engineer, get the numbers in writing, and price any structural upgrade before a single shingle comes off.
- High-altitude UV wrecking old 3-tab shingles. At 6,700-plus feet, the sun degrades old composition shingles far faster than at valley elevations. Nail heads push through, rust streaks run down the decking, and homeowners mistake it for flashing failure. It’s usually the shingle itself, baked brittle by mountain sun.
- Ice dams where warm interior air leaks through ceiling penetrations. Unsealed can lights, vent pipes, and wood stove chimneys melt snow at the eaves. The meltwater refreezes at the roof edge, backs up under shingles, and soaks insulation. Proper air sealing at the attic floor is the prevention we recommend before the roof goes on.
Pricing for Roof Installation in Big Bear City, CA
Straight numbers: a full tear-off and architectural shingle re-roof on a typical 1,200 to 1,800 square foot Big Bear City cabin runs $14,000 to $24,000. Add structural snow-load upgrades – sistering rafters, adding sheathing – and the range moves to $22,000 to $30,000 or more, which is why we write allowances into the contract and get a signed change order before any structural work begins. Roof flashing installation alone lands between $900 and $3,200. TPO on a flat section runs $7 to $14 per square foot. Every quote from Mercer Roofing is free, written, and fixed – no open-ended estimates, no surprise line items at the end. Call (743) 200-8347 and we’ll come measure the roof, check the attic, and hand you a price you can hold us to.
We Also Serve Cities Near Big Bear City
Our crews regularly handle roof installation work in Big Bear Lake, Lucerne Valley, Running Springs, and Yucaipa. If you own property in one of those towns, the same written pricing, photo-badged technicians, and 365-Day Done Right Promise apply. Ask about our schedule when you call (743) 200-8347.
Serving Big Bear City, CA - Our Local Coverage Area
We’re based in the Big Bear City 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 Installation in Big Bear City
Because Big Bear City sits at 6,752 feet and San Bernardino County enforces ground snow loads that can exceed 100 psf – a requirement Redlands, at 1,300 feet, simply doesn’t face. The permit review verifies your existing rafters can carry that snow, and on cabin-era homes built between the 1950s and 1970s, many can’t. If the review flags undersized framing, we engineer the correction and price it in writing before work starts. Call (743) 200-8347 and we’ll walk you through what the permit process will trigger on your specific home.
Replacing failed decking on a Big Bear City tear-off typically adds $1,800 to $4,800 depending on how many sheets of plywood or OSB need to come out. Adding ice and water shield at the eaves where it was never installed runs $1,200 to $2,600 for a typical cabin footprint. We write a material allowance into your contract and show you photos of anything we find before we touch it. You approve the change order in writing – the price never moves without your signature.
We recommend architectural shingles – specifically GAF Timberline HDZ or Atlas Pinnacle – installed over full ice and water shield at the eaves and in every valley, with step flashing at walls and chimneys. The steeper the pitch, the better snow slides, but valleys concentrate runoff. That’s where continuous metal valley flashing matters. For a 1960s A-frame, we also verify rafter spacing and often add a layer of plywood sheathing to stiffen the deck before shingles go down. Call (743) 200-8347 and we’ll spec your A-frame based on its actual pitch and exposure.
They can, yes – and it’s not a flaw in the shingles. Ice dams form when warm attic air melts snow at the upper roof, then meltwater refreezes at the cold eave edge. A new roof with proper ice and water shield protects the deck, but if ceiling penetrations like can lights and vent pipes still leak warm air into the attic, dams keep forming. We inspect attic air sealing as part of our roof installation quote and give you a specific fix list. The membrane stops the water; the air sealing stops the dam.
Rarely, for two reasons. First, old wood shake decking in Big Bear City is usually spaced with gaps far too wide for modern shingle nailing – shingles need a solid, continuous substrate. Second, if the county’s snow-load verification flags the decking thickness, code forces an upgrade. We typically install new 5/8-inch plywood or OSB over the old deck to bring it to spec and give you a smooth, solid surface. We’ll show you the decking condition with photos before any material gets ordered, and the cost is written into your allowance line. Call (743) 200-8347 for a free roof inspection and an exact number.
Contact Mercer Roofing for Roof Installation in Big Bear City
Whether you’re pricing a full re-roof on a 1968 A-frame or a TPO replacement on a flat roof porch, get a written price from a roofer who shows a photo ID badge at the door. Call (743) 200-8347 to schedule your free estimate. Grant Whitlock and the Mercer Roofing team serve Big Bear City with photo-badged, background-checked technicians on every visit. Written price before work starts. 365-Day Done Right Promise on every job. A live person answers the phone, day or night.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Big Bear City.