Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
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Before
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Before
AfterFast, Reliable Roof Installation Across Big Bear Lake
Roof installation in Big Bear Lake is a different animal than it is down the mountain, and we don’t say that lightly. At nearly 6,800 feet with over 100 inches of annual snowfall, your roof has to hold real weight and shed water through freeze-thaw cycles that chew through lesser materials. Mercer Roofing handles full Roof Installation across Big Bear Lake, from tear-off to final inspection, with written pricing before we ever set a ladder against your wall. Call (743) 200-8347 to schedule a free estimate.
Why Mercer Roofing Is Big Bear Lake’s Preferred Roof Installation Company
Homeowners in Big Bear Lake keep calling us back for one reason: we treat the front door the way you do. Every technician who arrives at your cabin or chalet sends their name and photo before the visit, then badges in at the door with a photo ID. You know exactly who is on your property. That matters when you’re a remote owner who can’t be there, or a parent home alone with kids while a crew works overhead.
Grant Whitlock, who leads Mercer Roofing, holds every location to the Threshold Verified standard. That means background-checked, uniformed crews on every job, no exceptions. We’re part of the Threshold Group family, founded in 2000, and each location is independently owned and operated. But the standard is the same whether the job is a small flashing repair near Boulder Bay or a full tear-off off Big Bear Boulevard.
Roof Flashing Installation in Big Bear Lake
Roof Flashing Installation in Big Bear Lake is where we stop the leaks that ice dams start. Flashing is the bent metal at chimneys, valleys, walls, and skylights – the places where water wants to sneak through. At this altitude, flashing gets worked hard: snow packs against it, melts, refreezes, and pries at the sealant. We pull old flashing, inspect the decking underneath, and install new metal with fresh ice and water shield behind it.
Valley and Chimney Flashing
Valleys on steep Big Bear Lake roofs collect more runoff than anywhere else. We use wider flashing profiles here than you’d see on a flat Inland Empire roof. Chimneys take the worst of it, so we check the mortar cap and step flashing together before we quote.
Wall and Skylight Junctions
Where a dormer wall meets the roof is the most common leak point on mountain cabins. We cut in new step flashing behind the siding, not just over it. Skylights get the same treatment with proper underlayment up the curb.
Flashing work in Big Bear Lake typically runs $650 to $1,900 depending on how many junctions need attention. A written price comes first, always. Call (743) 200-8347 for a free estimate.
TPO Roofing Installation in Big Bear Lake
TPO Roofing Installation in Big Bear Lake is for the low-slope sections you find on additions, detached garages, and some rental cabins. TPO is a white single-ply membrane that reflects UV – a real advantage at altitude where sunlight is stronger than it is in the valley. Big Bear Lake sees intense high-altitude UV that oxidizes asphalt faster than the same product below, so a reflective TPO surface stays cooler and lasts longer on flat sections.
Membrane Attachment Options
We mechanically attach or fully adhere TPO depending on what’s underneath. Older Big Bear Lake cabins often have 1×6 or 3/4″ plywood decking from the 1960s and 70s. We verify fastener pull-out before we commit to an attachment method, because snow load on a low-slope roof puts extra stress on the membrane.
Snow and Fire Considerations
TPO is naturally fire-resistant and meets Class A when installed over the right substrate – significant in Big Bear Lake’s WUI zone. We also add tapered insulation where needed so melting snow doesn’t pond on the surface.
TPO installation in Big Bear Lake generally runs $9,500 to $18,000 for a typical detached garage or addition roof. Every quote is written and fixed before work begins. Call (743) 200-8347 to schedule your estimate.
Trusted Brands We Service in Big Bear Lake
We install and repair GAF, CertainTeed, and Owens Corning roofing products, selected because they perform in Big Bear Lake’s specific conditions. These manufacturers engineer shingles for high wind, heavy snow, and Class A fire ratings – all of which matter here. We keep common flashing profiles, ridge vents, and underlayment on hand for Big Bear Lake jobs so a repair doesn’t wait on a parts run down the mountain.
Common Roof Installation Problems We See in Big Bear Lake Homes
- Ice dams along north-facing eaves. Snow melts, refreezes at the cold eave edge, and water backs up under shingles. The fix is ice and water shield from the eave edge up beyond the heated wall line – something many original cabin roofs never got.
- Multiple layers of old wood shake. Through the 1990s, cedar shake and wood shingle were the standard on Big Bear cabins. Today’s WUI codes effectively ban them, so reroofing means stripping two, three, sometimes four layers and finding rot underneath.
- Rotted skip-sheathing under shake. Shake was installed over spaced boards, not solid decking. When we strip it away, the boards underneath are often spongy from decades of moisture. New shingles can’t go over bad decking.
- Tight lots with shared walls and driveway access. Many Big Bear Lake cabins sit feet from the neighbor’s wall. Staging a dumpster, ladder, and tear-off debris without blocking an easement is a real part of the job.
Pricing for Roof Installation in Big Bear Lake, CA
A full roof installation in Big Bear Lake typically lands between $14,000 and $42,000 depending on square footage, pitch, and what the tear-off uncovers. Steep A-frames cost more per square because crews move slower and safety takes more time. A simple cabin reroof with moderate pitch often falls around $16,000 to $24,000. Flashing replacement adds $650 to $1,900. Decking repair runs $8 to $14 per square foot when rot appears.
What moves the number in Big Bear Lake is layering. Stripping multiple layers of shake costs more in labor and dump fees than a single-layer tear-off. We give a fixed written price before work starts, including the known layering. Call (743) 200-8347 for a free, line-item estimate.
Working Tight Big Bear Lake Lots: Staging, Access, and Neighbors
Big Bear Lake roofs face a dual code constraint found nowhere else in Southern California: over 100 inches of annual snowfall means structural snow-load engineering, while the Wildland-Urban Interface fire zone effectively outlaws wood shake and cedar. Roof installation here almost always replaces multiple layers of aging shake with a Class A assembly – a heavier material profile, so decking and framing often need repair before a single new square goes on.
We were called to a steep A-frame on a tight lot near the Big Bear Lake village after the owner noticed water stains by a valley. The roof had three layers of old cedar shake, and stripping it exposed rotted skip-sheathing along the north-facing eave. We replaced the bad decking, added ice and water shield, and installed GAF architectural shingles with new ridge vent and drip edge. The neighbor whose wall was a few feet away was kept in the loop before we ever staged a dumpster.
Tight lots change how we quote. If we can’t get a dumpster close, if we’re hauling debris by hand, if shared driveway access means we stage on one side only – that labor shows up in the written price. We also talk to adjacent owners before tear-off begins. A five-minute conversation prevents a work-hour noise complaint that stops the job. Big Bear Lake’s building stock is dominated by 1950s to 1980s A-frame cabins and steep chalets built as weekend retreats. Many are now vacation rentals managed remotely. That means deferred maintenance is common, and the roofer is often the first person to actually look at the decking in 20 years.
We Also Serve Cities Near Big Bear Lake
Beyond Big Bear Lake itself, Mercer Roofing handles roof installation in Big Bear City, Running Springs, Lucerne Valley, and Mentone. The snow-load and WUI fire requirements don’t stop at the city line, and neither do we. If you’re on the mountain or just off it, we’ll bring the same written pricing and badged crews.
Serving Big Bear Lake, CA - Our Local Coverage Area
We’re based in the Big Bear Lake 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 Lake
A tight lot raises your quote only when access genuinely slows the job. If a dumpster can’t sit near the house, if debris must be hand-carried to the street, or if there’s no room to stage materials, that labor shows up in the written price before we start. We walk the lot, check access, measure the roof, and factor everything in on the first visit. Call (743) 200-8347 for a free estimate that accounts for your specific lot.
Yes. Replacing wood shake is one of the most common roof installations in Big Bear Lake. Current WUI fire codes effectively prohibit shake on new reroofs, so we strip the old layers, repair the decking, and install a Class A assembly – usually architectural shingles with ice and water shield at the eaves. Call (743) 200-8347 to schedule a look at what’s under your shake.
Yes, a permit is required for a full reroof in Big Bear Lake, and yes, we handle it. The permit covers the scope of decking replacement, nailing pattern, and Class A fire-rated material compliance. We pull the permit and manage inspections so you don’t have to chase the building department from off the mountain. Call (743) 200-8347 with questions about your specific cabin.
We talk to them before we start. On a shared-wall or closely spaced Big Bear Lake lot, we notify adjacent owners about dumpster placement, tear-off timing, and noise. Work stays within local hours, and debris never sits in a shared easement. Most complaints happen because nobody said anything. We say something early. Call (743) 200-8347 to schedule a job that won’t strain your relationship with the people next door.
Class A fire-rated architectural shingles with ice and water shield at the eaves are the best fit for most Big Bear Lake roofs. The shingle handles the fire rating, and the ice and water shield stops ice-dam leaks on north-facing eaves. TPO works well on low-slope sections. Wood shake is effectively out under current WUI codes. Call (743) 200-8347 for a written recommendation based on your roof’s pitch and exposure.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Big Bear Lake with written pricing, background-checked crews, and roof installations built for mountain weather.