Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Roofers in San Lorenzo, CA
Roofing in San Lorenzo runs about $6,500 – $14,500 for full replacement and $350 – $1,800 for typical repairs, with most jobs scheduled within a few business days. The defining challenge here is the age and uniformity of the housing stock: thousands of nearly identical postwar ranch homes built between 1944 and 1951 are reaching end-of-life together, often with two or three roofing layers already stacked on low-slope frames that trap marine moisture. We dispatch crews from our Bay Area office and serve San Lorenzo homeowners directly. Call (743) 200-8347 to schedule your free estimate.
Why San Lorenzo Homes Are Different
San Lorenzo sits on the flat bay plain just inland from the shoreline, squarely in the fog belt that rolls off San Francisco Bay most mornings. That salt-laden marine layer accelerates corrosion of metal flashing, drip edges, and fasteners faster than you’ll see in interior East Bay towns like Castro Valley or Livermore. The wet season compresses roughly 16 – 18 inches of annual rainfall into November through March, so any pre-existing flashing failure or low-slope drainage problem gets exposed fast.
The housing story is even more specific. Developer David Bohannon built the San Lorenzo Village tract as a massive planned community of nearly identical ranch-style homes in that compressed 1944 – 1951 window. The result is a huge concentration of roofs hitting critical end-of-life simultaneously. These homes feature characteristically low-pitch gable roofs with limited overhang, and many have already received one or two re-roofing layers. That raises tear-off requirements and makes decking inspection for dry rot or sheathing delamination a routine part of nearly every job we do here.
Because the structural geometry is so uniform across the Village grid, our crews know to probe the same valley intersections and the same low-point near the front entry overhang on house after house. A soft-decking pattern found on one block reliably predicts what we’ll find two blocks away. This density of similar problems means San Lorenzo roofers develop a specialized eye for this exact housing stock.
Our Main San Lorenzo Services
San Lorenzo homeowners call us most often for repair work on aging Village roofs and full replacement when tear-off reveals layered damage. Each service has its own dedicated San Lorenzo page with deeper detail.
Roof Repair in San Lorenzo
Repair work in San Lorenzo centers on the predictable failure points of Bohannon-era construction: valley leaks where low slopes slow drainage, granule loss accelerated by persistent marine fog, and flashing corrosion at original chimney and vent penetrations. We strip to decking where needed, replace compromised underlayment, and match existing shingle profiles using GAF, CertainTeed, Owens Corning, and other manufacturer-recognized brands. Every repair carries our written 365-Day Done Right Promise. Roof Repair in San Lorenzo

Roofing Company in San Lorenzo
As a full-service roofing company in San Lorenzo, we handle everything from emergency leak response to scheduled maintenance inspections and complete re-roofs. Our technicians are background-checked, identity-verified, and dispatched under Threshold Verified standards. You’ll receive each technician’s name and photo before they arrive, and they’ll badge in with photo ID at your door. Every project starts with a written price, and a live person answers our phones 24/7. Roofing Company in San Lorenzo

Roof Installation in San Lorenzo
New roof installation in San Lorenzo demands careful tear-off assessment because so many Village homes carry multiple layers. We inspect decking for dry rot and sheathing delamination, address any sag from decades of accumulated weight, and install fresh underlayment and ventilation appropriate to the original low-slope design. We work with GAF, CertainTeed, Owens Corning, and IKO shingles, with color and texture options matched to neighborhood character. Roof Installation in San Lorenzo

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in San Lorenzo
We install and repair using manufacturer-recognized shingle brands including GAF, CertainTeed, Owens Corning, and IKO, with common profiles and colors stocked for fast turnaround on San Lorenzo repair calls. Flashing, underlayment, and ventilation components are matched to each manufacturer’s system requirements. See our brands for full details.
Pricing for Roofers in San Lorenzo, CA
| Service | Typical range in San Lorenzo |
|---|---|
| Minor leak repair (localized flashing) | $350 – $650 |
| Moderate repair (valley, vent, small area) | $650 – $1,200 |
| Major repair (multiple areas, decking) | $1,200 – $1,800 |
| Partial roof replacement (1 – 2 slopes) | $3,500 – $6,500 |
| Full asphalt shingle replacement (small home) | $6,500 – $9,500 |
| Full asphalt shingle replacement (mid-size home) | $9,500 – $12,500 |
| Full asphalt shingle replacement (large/complex) | $12,500 – $14,500 |
| Decking replacement (per sheet, if needed) | $85 – $150 |
| Skylight repair/replacement | $450 – $1,100 |
| Chimney flashing rebuild | $550 – $1,400 |
In San Lorenzo, prices push toward the higher end when we encounter three-layer tear-offs, extensive dry rot in original decking, or corroded fasteners throughout the fog-exposed flashing system. We provide a written, line-item price before any work starts, every time, with no change orders unless you request additional scope.
Neighborhoods We Serve in San Lorenzo
Our crews work throughout the San Lorenzo Village grid and surrounding areas, from the original Bohannon tracts to the infill and commercial edges. Most San Lorenzo appointments are scheduled within a few business days, with emergency leak response prioritized during the wet season.
- San Lorenzo Village (original Bohannon tracts)
- Washington Manor
- Hesperian Gardens
- Arlington
- Meekland
Service Area – Cities Near San Lorenzo
We serve San Lorenzo directly and regularly work with homeowners in neighboring communities throughout the East Bay flatlands and foothills. Our crews also take appointments in Castro Valley, CA, San Leandro, CA, Union City, CA, and Oakland, CA. Dispatch and scheduling are coordinated from our Bay Area office.
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 Roofers in San Lorenzo
Yes, the County of Alameda requires a building permit for full roof replacement in San Lorenzo, including tear-off and structural repairs. We pull permits for every qualifying job and schedule required inspections. Call (743) 200-8347 and we’ll confirm whether your specific project needs permitting.
We prioritize active leak calls during November through March, typically scheduling emergency assessments within 24 – 48 hours in San Lorenzo. Non-urgent work is usually booked within a few business days year-round. A live person answers our phones 24/7 to triage your situation.
Experienced San Lorenzo roofers recognize the repeated patterns: low-slope valleys that pool moisture, limited overhangs that expose rake edges, and the same front-entry overhang soft spots from decades of layered roofing. Our crews probe these known failure points on every Village inspection. Call (743) 200-8347 for a free estimate.
What happens when you call
- 1A real person answersNo phone trees - talk to a local roofing pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What San Lorenzo Customers Say
"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."Good roof repair. The crew was a day later than planned because of rain, which I understand, but the scheduling got moved twice. Work itself is clean and has held up."
- Dale T."Replaced the ridge cap and drip edge, and fixed a sagging gutter that nobody else mentioned. Fair price."
- Phil N.






Before
After
Before
After
Before
After