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Roofing Company in San Lorenzo, CA | Birchbark Roofing San Francisco

Roofing Company in San Lorenzo - Free Roof Inspection, Written Price

Free roof inspection with photos, then an itemized written price before anything is ordered. Installed by our own licensed crews and backed by a workmanship warranty.

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Licensed & Insured Written Quotes Free Estimates All Brands Satisfaction Guarantee
Metal roofingMetal roofing
Tile roofingTile roofing
GAFGAF
Owens CorningOwens Corning
Flat & low-slopeFlat & low-slope
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Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation

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Fast, Reliable Roofing Company Across San Lorenzo

If you’re searching for a Roofing Company that understands San Lorenzo’s post-war tract homes, you’ve found one. We know these 1940s and 1950s houses intimately: the low-slope roofs, the minimal overhangs, the original built-up layers that are decades past their intended life. Our crews serve San Lorenzo daily with honest assessments, written pricing, and repairs that hold through the wet winters. Call (831) 228-3330 to schedule your free estimate.

Call (831) 228-3330

Why Birchbark Roofing San Francisco Is San Lorenzo’s Preferred Roofing Company

San Lorenzo homeowners call us because we treat their homes the way we’d want our own treated. Shoe covers go on at the door, drop cloths run through the hallway to the attic access, and every bit of debris is cleared and photographed before we pack up. That’s not a bonus feature; it’s the baseline here. We’re part of the Cedarwell family of roofing companies since 2000, and every location holds to the same promise: a written price before any work starts, a 365-Day Done Right Promise on every repair and replacement, and a crew that respects the family inside the house.

Erik Lindgren leads our team with a simple rule: if we wouldn’t do it on our own home, we don’t do it on yours. Background-checked, uniformed technicians arrive ready to explain exactly what they found, what it costs, and how long it’ll take. No surprises, no pressure. Just roofing done carefully.

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Styles & brands we work with

Metal roofing
Metal roofing
Tile roofing
Tile roofing
GAF
GAF
Owens Corning
Owens Corning
Flat & low-slope
Flat & low-slope

Roof Inspection in San Lorenzo

A roof inspection in San Lorenzo is the fastest way to find out whether your low-slope roof is holding up or quietly failing. San Lorenzo’s winter rains saturate old built-up roofing and wind-driven salt air attacks flashing and fasteners long before shingles show obvious damage. We inspect the entire roof surface, the edge metal, the fasteners at the first course, the flashings at parapets and penetrations, and the underside in the attic where possible. You get photographs, a written condition report, and a line-item price for anything that needs attention.

What We Check on Every San Lorenzo Inspection

We look at the roof’s edge metal first. On San Lorenzo homes, galvanized drip edge corrodes from salt exposure within ten to fifteen years, and once it’s rusted through, wind-driven rain gets under the shingle edge and starts rotting rafter tails from the outside in. We also check the starter course fasteners. Original steel nails on 1950s roofs have often corroded to dust by now, which means the shingles look fine but the wind uplift capacity is gone.

A roof inspection in San Lorenzo typically runs $195 to $350 depending on the size and accessibility of the roof. If the inspection leads to a repair or replacement, we credit the inspection fee toward the work. Call (831) 228-3330 to book yours.

When to Schedule an Inspection

October is the smartest month. You beat the heavy rain season and we have time to fix what we find before the first real storm. March works too, after the winter has shown you any weak spots. If you’ve seen ceiling stains, damp attic insulation, or granules collecting in the gutters, don’t wait for the next rain to confirm it. An inspection now costs less than the drywall repair later.

Most residential roof inspections in this scope run between $195 and $350; you’ll see your exact number in writing before we start.

Commercial Roofing in San Lorenzo

Commercial roofing in San Lorenzo comes with its own set of challenges, and they’re mostly about flat and low-slope membrane systems. Strip malls along Hesperian Boulevard, church sanctuaries in the Village, and light industrial buildings near the San Lorenzo Creek corridor all deal with the same issue: ponding water. Low-slope commercial roofs in San Lorenzo hold standing water after winter rains, and that water eventually finds its way through seams, patches, and failed drains. Salt-laden moisture makes it worse, corroding metal flashings around rooftop HVAC curbs and cracking old asphalt and gravel caps.

We handle re-roofs, coatings, and targeted repairs for San Lorenzo commercial properties. The goal is always the same: keep water moving off the roof and keep business running underneath. We work with materials from GAF and CertainTeed for single-ply and modified systems, and we schedule around your business hours so work doesn’t interrupt your day.

Flat Roof Repair vs. Replacement

For a commercial flat roof in San Lorenzo, a targeted repair to a failing drain or a split seam runs $850 to $2,400. A full replacement of a small commercial roof, say 2,000 square feet, starts around $18,000 and ranges up to $45,000 depending on the existing layers, substrate condition, and whether new tapered insulation is needed. San Lorenzo’s older commercial buildings sometimes need a full tear-off down to the decking because the original built-up roof has been patched so many times there’s nothing solid left to adhere to.

Inspection Before You Invest

Before you commit to a commercial roofing project in San Lorenzo, we do a full inspection and give you a written proposal with a precise scope and a fixed price. No change orders unless the structure itself changes. Call (831) 228-3330 for a commercial roof inspection here in San Lorenzo.

Trusted Brands We Service in San Lorenzo

We stock and install materials from GAF, CertainTeed, and Tamko for San Lorenzo homes and businesses. GAF’s architectural shingles are our go-to for the re-roofs we do on 1950s tract homes; they shed water well on low-slope applications when detailed correctly. CertainTeed’s membrane systems serve the flat and commercial jobs along Hesperian Boulevard. Tamko’s shingles offer a solid mid-range option when budget matters. Because we maintain local stock, San Lorenzo customers aren’t waiting weeks for materials to arrive from a distributor. We order ahead, we keep common sizes in hand, and we turn repairs around quickly.

Before & after

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Recent Project
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Full Restoration
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Complete Upgrade

Common Roofing Company Problems We See in San Lorenzo Homes

  • Rusted drip edge and fascia. San Lorenzo’s salt-laden winter rain and fog attack the roof’s edge metal first. Once galvanized drip edge rusts through, water runs under the shingle edge and rots the barge rafters from the outside in. By the time a homeowner sees the exterior rot, the interior framing damage is already done.
  • Corroded fasteners in the starter strip. Original steel nails from the 1950s have often returned to dust by now. The shingle field can look completely fine while the first course and starter strip have no effective mechanical attachment. One good wind storm can peel the edge right off.
  • Ponding on low-slope and flat roofs. San Lorenzo’s minimal roof overhangs and shallow slopes mean water doesn’t shed quickly. After a week of winter rain, standing water works into every seam, split, and blister. Built-up gravel roofs hide this remarkably well; the gravel looks fine while the plies underneath are saturated.
  • Ceiling stains in Village bungalows. In the Village neighborhood, you can spot original 1950s shake roofs that have been repeatedly patched. When the winter rains start, those are the first to call. The water is usually entering at the eaves or around the chimney flashing, not through the field of the roof.

Pricing for Roofing Company in San Lorenzo, CA

Roof repairs in San Lorenzo run $450 to $1,800 for typical work like replacing a rusted drip edge run, fixing a flashing, or repairing a small section of shingles or built-up roofing. A full roof replacement on a typical 1,200-square-foot San Lorenzo tract home ranges from $14,000 to $28,000, depending on the tear-off, the substrate condition, and whether new plywood decking is needed. The coastal-spec difference matters here: upgrading to 316 stainless drip edge and hot-dip galvanized ring-shank nails adds roughly $800 to $1,600 to a typical reroof versus budget galvanized materials. That’s the price gap between a roof that holds through winter storms and one that starts rusting at the edges within a decade. You’ll see your exact number in writing before any work begins. Call (831) 228-3330 for a free estimate.

We Also Serve Cities Near San Lorenzo

Our San Lorenzo crews regularly handle roofing work across the East Bay and the Peninsula. We serve Oakland, Alameda, Moraga, and San Mateo, bringing the same written pricing and clean-up standards to every home. If you’re a few minutes outside San Lorenzo, call us anyway. We’ll let you know exactly when we can be there.

Serving San Lorenzo, CA - Our Local Coverage Area

We’re based in the San Lorenzo 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 Roofing Company in San Lorenzo

Why San Lorenzo Chooses Birchbark Roofing San Francisco

We set the standard for roofing company in San Lorenzo.

No Change-Order Surprises

The written quote you sign is the price you pay. Anything we find mid-job gets priced and approved by you in writing before we touch it.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in San Lorenzo

Getting your roofing company handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your roofing company needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in San Lorenzo - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local roofing company pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What San Lorenzo Customers Say

Trusted by homeowners across San Lorenzo and surrounding areas.

★★★★★

"After a storm we had a few spots to fix. They were gentle around the garden, laid tarps, and swept the driveway spotless. You'd never know a roof crew had been here."

Dawn Kirkland · Verified customer
★★★★★

"New roof after hail. They covered everything below, kept the site neat each day, and did a full nail sweep of the whole yard twice. Thoughtful people."

Caroline Prejean · Verified customer
★★★★★

"Roof repair after a leak. What won me over was the cleanup, they ground sheeted the flower beds so no debris fell in, and they ran a magnet over the whole yard for nails. Careful crew."

Gordon Fiske · Verified customer

Ready for Roofing Company in San Lorenzo?

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(831) 228-3330

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