Wind and Winter Storm Damage Repair for San Francisco Roofs
San Francisco doesn't see hail, but its winter atmospheric-river storms bring sustained wind and heavy wind-driven rain that finds every weak seam, loose flashing detail, and aging flat-roof membrane. A free inspection tells you what's really there.
How Storms Actually Damage a San Francisco Roof
Wind is the main driver here, not hail — and it interacts differently with the two roof types most common in the city:
- Lifted or torn shingles — sustained gusts on exposed hillside streets can work shingles loose at the edges and ridgelines first.
- Flashing pulled loose — around chimneys and parapet caps, especially where fasteners have already weakened from years of salt-air corrosion.
- Flat membrane seam failure — heavy, sustained rain finds any seam or flashing detail that's already aging on a low-slope rear section.
- Debris impact — falling limbs or blown debris in tree-lined neighborhoods can puncture roofing material outright.
What a Storm Damage Inspection Covers
- Full roof walk after the storm passes, covering pitched and flat sections both.
- Dated photos of any damage found, for your records and your insurance carrier.
- A written assessment — including damage that isn't visible from the ground.
- Emergency tarping if there's active water intrusion, before the permanent repair.
After Storm Damage Is Assessed
Insurance Claims Help
Documentation and adjuster support for wind and storm claims.
Learn more about Insurance Claims HelpStorm Damage Questions
Does San Francisco really get storm damage without hail?
Yes. The city's storm risk comes mostly from winter atmospheric-river systems moving in off the Pacific — sustained wind gusts, heavy wind-driven rain, and occasional downed limbs, rather than hail. Exposed hillside blocks and older flashing details are usually where the damage shows up first.
How do I know if my roof has wind or storm damage?
Signs include lifted or missing shingles, flashing pulled loose around chimneys or parapets, and water stains that appear suddenly after a storm rather than gradually over time. Damage on a flat rear section can be even less obvious from the ground, which is why we recommend a free inspection after any significant storm.
Will homeowners insurance cover my storm damage?
Most California homeowner policies cover sudden wind and wind-driven rain damage, subject to your specific policy and deductible. We document damage thoroughly and can meet your adjuster on-site — see our insurance claims page for the full process.
What should I do immediately after storm damage?
If there's active water intrusion, call us right away for emergency tarping. Avoid going on the roof yourself — storm-damaged roofs, especially steep Victorian pitches, can be unstable and slippery.
Just Had a Storm Roll Through?
Free inspection, written report, no pressure. We serve Hayes Valley and San Francisco.