How much does a roofer cost in San Francisco? Based on BLS OEWS May 2024 wage data and RSMeans 2024 construction costs, here are real numbers — not the "$99–$975" ranges you get from lead-gen sites.
Roof pitch, accessibility, number of layers to tear off, and chimney/skylight penetrations all affect cost significantly.
Every price below is adjusted to San Francisco's labor market using a 1.35× city index applied to RSMeans 2024 national data. Labor hours assume standard conditions — add 15–40% for older homes, difficult access, or code catch-up.
| Job | Price Range | Hours | Permit |
|---|---|---|---|
|
Asphalt Shingle Repair (patch)
Color match nearly impossible after 5+ years. Disclose mismatch or replace full slope.
|
$270–$1,080 | 2h | No |
|
Downspout Extension + Drain
6-foot minimum extension from foundation. French drain if ground slopes toward house.
|
$270–$1,080 | 2h | No |
|
Valley Flashing Replace
Open valley (metal) vs closed cut vs woven - each has different leak failure modes.
|
$405–$1,215 | 3h | No |
|
Ice & Water Shield - Eaves (per slope)
IRC R905.1.2: Required in first 24" above exterior wall in climate zones 1-8.
|
$405–$1,080 | 2h | No |
|
Chimney Flashing Replacement
Step flashing + counter flashing + saddle flashing. Lead flashing lasts 50 years; aluminum 20.
|
$540–$2,025 | 4h | No |
|
Synthetic Underlayment Upgrade
Synthetic (#30 felt equivalent) is lighter, stronger, UV-resistant. Required under metal roofing.
|
$675–$2,025 | 4h | No |
|
Attic Ventilation Upgrade
IRC requires 1 sqft ventilation per 150 sqft attic area. Ridge vent + soffit vent = best airflow.
|
$675–$2,700 | 4h | No |
|
Gutter Guards Install
Micro-mesh (best) vs reverse curve vs foam insert. None is truly maintenance-free.
|
$1,080–$4,050 | 4h | No |
|
Skylight Replace
Velux vs generic - flashing kit difference is significant. Curb-mount vs deck-mount = different water management.
|
$1,080–$3,375 | 5h | Required |
|
Gutters - Seamless Aluminum (full)
5" K-style vs 6" half-round. 1/16" drop per foot pitch minimum. Oversized downspouts in high-rain areas.
|
$2,025–$5,400 | 6h | No |
|
Soffit & Fascia Replace
Rotted soffit/fascia = entry point for pests and moisture. Vented soffit required for attic ventilation.
|
$2,025–$6,750 | 8h | No |
|
Flat Roof - EPDM Rubber (full)
EPDM lasts 20-25 years. Ballasted vs adhered vs mechanically fastened - different costs.
|
$6,750–$17,550 | 18h | Required |
|
Flat Roof - TPO Membrane (full)
60-mil TPO with 6-inch seams. All penetrations flashed. Tapered insulation for positive drainage.
|
$8,100–$20,250 | 20h | Required |
|
Flat Roof - Modified Bitumen (full)
Torch-down APP or cold-applied SBS. Two-ply minimum. Great in extreme cold climates.
|
$8,100–$18,900 | 20h | Required |
|
Asphalt Shingle Roof - Full Replace
Class A fire rating, ice/water shield in first 3 feet, proper attic ventilation = insurance-grade install.
|
$10,800–$27,000 | 24h | Required |
|
Architectural Shingle Install (full)
Dimensional shingles: 30-year warranty vs 25-year 3-tab. Hip-and-ridge caps required.
|
$13,500–$33,750 | 28h | Required |
|
Impact-Resistant Shingle Install
Class 4 IR rating: qualifies for insurance discount in hail-prone states. Verify with insurer first.
|
$16,200–$37,800 | 28h | Required |
|
Metal R-Panel/Corrugated Roof
Less expensive than standing seam but exposed fasteners can back out over time.
|
$16,200–$37,800 | 30h | Required |
|
Standing Seam Metal Roof (full)
50+ year lifespan. Requires complete underlayment, flashing at every penetration, thermal movement allowance.
|
$27,000–$60,750 | 40h | Required |
|
Clay/Concrete Tile Roof (full)
Heavy - verify structural framing can support 900-1200 lbs per 100 sqft. Mortar bed vs foam set.
|
$27,000–$67,500 | 45h | Required |
Prices: RSMeans 2024 × 1.35 (San Francisco index). Labor: BLS OEWS May 2024. Code: IRC R905 (Roofing) + local wind/snow load requirements. Required for full replacement in most jurisdictions. Repair patches under a certain size may be exempt — check locally.
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