Mercer Roofing roofing team

Roofers in San Leandro - Free Inspection, Itemized Written Quote

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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Styles & brands we work with

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

Before & after – our own jobs

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Recent Project
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Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Roofers in San Leandro, CA

Roofers in San Leandro, CA work on one of the East Bay’s most distinctive housing stocks: thousands of post-WWII ranch homes with low-pitch roofs now reaching end-of-life together. Most repairs run $350 – $1,200, while full replacements on these compact homes typically fall between $12,000 and $22,000 depending on layers, decking condition, and whether salt-corroded flashing needs full replacement. Call (743) 200-8347 and we’ll send a written estimate before any work starts.

Call (743) 200-8347

What makes San Leandro different from neighboring cities isn’t just the age of the roofs. It’s the combination of original construction methods, bay-front salt exposure, and the layered shingle history hidden beneath what you can see from the curb. Our crews have walked enough San Leandro roofs to know where the surprises hide.

Why San Leandro Homes Are Different

San Leandro’s flatlands neighborhoods, particularly Washington Manor, Broadmoor, and Estudillo Farms, contain one of the densest concentrations of same-vintage post-WWII ranch homes in the East Bay. Most were built between 1948 and 1958 with low 3:12 to 4:12 pitch gable roofs and narrow overhangs. The original builders never anticipated the heavy atmospheric river rain events that now hit the Bay Area regularly. Water moves differently on a shallow pitch, and these roofs simply weren’t designed to shed the volume they now receive.

The marine layer here carries genuine salt load. San Leandro’s direct exposure to San Francisco Bay pushes salt-laden air across these aging roofs year-round, accelerating corrosion of flashing, vents, and fasteners measurably beyond what we see in Castro Valley or San Lorenzo just a few miles east. In fall, Diablo wind events funnel hot, dry gusts off the coastal hills, making brittle aged shingles especially vulnerable to uplift and cracking on these low-slope surfaces.

Then there’s what we find underneath. Roofers working Washington Manor’s 1949 – 1955 tract homes routinely tear off two or even three layered compositions stacked over original wood skip-sheathing. It’s a costly surprise invisible from the ground, inflating both labor and disposal haul-off fees. Experienced San Leandro crews learn to quote for this neighborhood-wide pattern upfront rather than discover it mid-job.

Older Estudillo Estates presents a different profile entirely: 1920s – 1930s Craftsman and Spanish-tile bungalows with failing mortar on clay tile roofs and undersized gutters that can’t handle winter runoff. Two eras of housing, two distinct repair vocabularies.

Our Main San Leandro Services

San Leandro homeowners call us most often for repair work on aging low-pitch roofs and full replacements on homes that have carried multiple shingle layers too long. Here’s what each job involves locally.

Roof Repair in San Leandro

Most San Leandro repair calls trace back to one of three causes: salt-corroded flashing at valleys and penetrations, wind-lifted shingles on shallow pitches that can’t resist uplift, or leaks where layered roofs have created reverse water channels. We inspect decking from inside the attic whenever possible, since original skip-sheathing in Washington Manor and Broadmoor won’t always show distress from the surface. Every repair comes with our written 365-Day Done Right Promise. Roof Repair in San Leandro

Roof Repair in San Leandro

Roofing Company in San Leandro

As a roofing company serving San Leandro, we coordinate permits with Alameda County, schedule around the marine layer’s morning moisture window, and stock the specific underlayment and ventilation components these low-pitch roofs demand. Our technicians are background-checked, identity-verified, and dispatched under Threshold Verified standards. You’ll receive their name and photo before they arrive, and they’ll badge in with photo ID at your door. Roofing Company in San Leandro

Roofing Company in San Leandro

Roof Installation in San Leandro

Full roof installation in San Leandro requires planning for the layered tear-off reality. We quote assuming multiple layers and original skip-sheathing until inspection proves otherwise, so your written price reflects actual conditions, not best-case hopes. We install GAF, CertainTeed, and Owens Corning systems with proper low-slope underlayment and corrosion-resistant flashing specified for marine environments. Roof Installation in San Leandro

Roof Installation in San Leandro
Need help today?Fast, friendly service and a no-obligation free estimate.

Call (743) 200-8347

What happens when you call

  1. 1
    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Brands We Service in San Leandro

We install and repair roofs using GAF, CertainTeed, Owens Corning, and IKO shingles, with matching ventilation, underlayment, and flashing components stocked for quick turnaround on San Leandro repair calls. See our brands for full specifications and warranty details.

Pricing for Roofers in San Leandro, CA

Service Typical range in San Leandro
Minor leak repair (flashing, single vent) $350 – $650
Moderate repair (multiple shingles, valley work) $650 – $1,200
Skylight reflash or replacement $800 – $1,500
Chimney cricket and flashing rebuild $1,200 – $2,400
Partial roof section (1,000 sq ft) $4,500 – $7,500
Full roof replacement, single-story ranch $12,000 – $18,000
Full roof replacement with layered tear-off $15,000 – $22,000
Clay tile repair (Estudillo Estates area) $1,500 – $3,500
Gutter replacement (standard home) $1,200 – $2,800
Attic ventilation upgrade $800 – $1,800

Three factors push San Leandro prices toward the higher end: multiple shingle layers requiring heavier disposal, salt-corroded flashing needing full replacement rather than spot repair, and original wood skip-sheathing that must be sistered or replaced to meet current code. We put every price in writing before work starts. No surprises on the invoice.

Neighborhoods We Serve in San Leandro

Our crews work across San Leandro’s full residential map, from the bay-front flatlands to the hillside pockets above Interstate 580. Most appointments are scheduled within two business days, with emergency tarping available when Diablo winds or atmospheric river damage leaves a home exposed.

  • Washington Manor
  • Broadmoor
  • Estudillo Farms
  • Estudillo Estates
  • Bay-O-Vista

Service Area – Cities Near San Leandro

We coordinate dispatch and scheduling from our San Francisco Bay Area office, with crews serving San Leandro locally and neighboring communities including San Lorenzo, CA, Castro Valley, CA, Oakland, CA, and Alameda, CA. Each location operates under the same Threshold Verified standards for technician vetting and written pricing.

Serving San Leandro, CA - Our Local Coverage Area

We’re based in the San Leandro 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 Roofers in San Leandro

Ready to get started? Free estimates · Free in-home estimates response in San Leandro
Call (743) 200-8347

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local roofing 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 Leandro Customers Say

★★★★★ 4.8 from 9+ reviews

"Chimney flashing was the culprit for years of dark stains on the ceiling. Fixed it in one visit and no more stains."

- Ian O.

"Roofer showed his ID and gave me the crew lead's name before anyone climbed the ladder. Replaced a patch of missing shingles and resealed two vent boots. Written estimate matched the final bill."

- Brian J.

"Full tear-off and new shingles on our two-story. They covered the landscaping with tarps and ran a magnet over the yard afterward. Didn't find a single nail."

- Karen V.

How It Works in San Leandro

Getting your roofing handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your roofing 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 Leandro - 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.

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Free On-Site Estimate & Written Quote

No obligation. We measure, price the job in writing, and the quote is yours to keep.

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Written Price Before Any Work Starts

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Written Guarantee on Every Repair

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Free Second Visit if the Repair Fails

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